Academic literature on the topic 'Ancient seep'
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Journal articles on the topic "Ancient seep"
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KIEL, STEFFEN, KATHLEEN A. CAMPBELL, and CHRISTIAN GAILLARD. "New and little known mollusks from ancient chemosynthetic environments." Zootaxa 2390, no. 1 (2010): 26. http://dx.doi.org/10.11646/zootaxa.2390.1.2.
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Twelve mollusk species from late Jurassic to Oligocene cold seep deposits are described and illustrated. Nine of them are new, two have already been named, two new genera are introduced, and one species is described only in open nomenclature. Puncturella (sensu lato) mcleani sp. nov. and Fissurella (sensu lato) bipunctata Stanton, 1895 are the only confirmed fissurellids in fossil cold seeps. The sutilizonid Triassurella goederti sp. nov. is similar to the modern ventinhabiting Sutilizona and the Late Triassic shallow-water reef-inhabitant Triassurella carnica. A smooth, late Jurassic neritid is the oldest neritid from fossil seeps and probably represents an independent neritid radiation into the seep environment, without close phylogenetic connection to the modern Bathynerita. The four new abyssochrysoid caenogastropods Humptulipsia macsotayi, Hokkaidoconcha novacula, Paskentana anistratenkorum, and P. umbilicata significantly extend the stratigraphic and geographic ranges of these apparently seep-restricted genera. Four bivalves are described, including the new modiomorphid Caspiconcha rubani from the early Cretaceous and the new bathymodioline Bathymodiolus (s.l.) palmarensis from the Oligocene. Among the lucinids, the oldest seep-inhabiting lucinid (late Jurassic) is described as Beauvoisina carinata gen. et sp. nov.; the new genus Cubatea is introduced for an Oligocene lucinid from Cuba. It is suggested that Caspiconcha, Paskentana, and hokkaidoconchids constitute the core of a seeprestricted fauna that inhabited seeps worldwide from (at least) late Jurassic to early Cretaceous time. These taxa are, at the family level, phylogenetically unrelated to the modern vent and seep fauna.
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Campbell, Kathleen A., and David J. Bottjer. "Peregrinella: an Early Cretaceous cold-seep-restricted brachiopod." Paleobiology 21, no. 4 (1995): 461–78. http://dx.doi.org/10.1017/s0094837300013488.
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Brachiopods generally have not been considered to be typical or significant faunal components of modern or ancient hydrothermal vent and cold-seep settings. The Early Cretaceous (Neocomian) rhynchonellide brachiopodPeregrinellahas long been viewed as a paleontological curiosity because of its distinctive morphology, status as the largest Mesozoic brachiopod, anomalous stratigraphic associations, and widespread, yet discontinuous paleogeographic distribution. Examination of all worldwidePeregrinellaoccurrences (14) indicates restriction of this brachiopod to ancient cold-seeps. It is probable thatPeregrinellagrew to large sizes in such great abundances at fossil cold-seep sites because of a richly organic food supply generated by localized fluid seepage and bacterial chemosynthetic activity. Living brachiopods are not known to harbor chemosymbiotic bacteria in their tissues; however, direct chemoautotrophic utilization of reduced fluids byPeregrinellacannot be rejected or demonstrated at present.Peregrinellaoccurs at widely separated cold-seeps of Neocomian age (e.g., California, Mexico, Tibet, Europe), yet its mode of dispersal and larval development is unknown. In modern hydrothermal vents of the deep-sea, organism dispersal occurs along oceanic ridges, where benthic faunas display both planktotrophic and nonplanktotrophic larval-mode types.Peregrinellamay represent a Mesozoic relic of a long-lived “lineage” of vent-seep associated rhynchonellides from the Paleozoic (e.g., ?Eoperegrinella, Dzieduszyckia), but major gaps in the stratigraphic record between these rhynchonellide occurrences, and the lack of rigorous phylogenetic analysis for these groups preclude a clear resolution of the origin(s) of vent-seep brachiopods at present.
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Wu, Cong, Fang Chen, Ying Tian, Kazutaka Amano, and Xin Su. "A new species of genus Provanna (Gastropoda, Abyssochrysoidea) from gas hydrate-bearing sediments of the northern South China Sea." Zoosystematics and Evolution 101, no. (1) (2025): 45–54. https://doi.org/10.3897/zse.101.137176.
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The genus <i>Provanna</i> (belonging to Superfamily Abyssochrysoidea) is a group of globally distributed gastropods commonly discovered in the deep-sea chemosynthetic environments. To date it is composed of 29 extant and nine fossil species and all of them seem to be endemic to vents, seeps or organic falls. Despite the increasing interest in cold seeps in South China Sea in recent decades, how this genus is distributed in this area is largely unknown. A new fossil species, <i>Provanna dongshaensis</i> sp. nov., collected from the hydrate-bearing sediments in the cold seep area of northern SCS, was studied. A basic morphological description together with the observation of shell microstructures was made, and a brief comparison to known <i>Provanna</i> species was summarized. The occurrence depths of this new species are consistent with the remarkable negative carbon isotope of carbonate layers, which mutually supports the relationship to the ancient seep. Such sedimentary samples from drilling cores may be potentially better materials for systematic research of deep-sea gastropods and other chemosynthesis fauna.
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Wu, Cong, Fang Chen, Ying Tian, Kazutaka Amano, and Xin Su. "A new species of genus Provanna (Gastropoda, Abyssochrysoidea) from gas hydrate-bearing sediments of the northern South China Sea." Zoosystematics and Evolution 101, no. 1 (2025): 45–54. https://doi.org/10.3897/zse.101.137176.
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The genus Provanna (belonging to Superfamily Abyssochrysoidea) is a group of globally distributed gastropods commonly discovered in the deep-sea chemosynthetic environments. To date it is composed of 29 extant and nine fossil species and all of them seem to be endemic to vents, seeps or organic falls. Despite the increasing interest in cold seeps in South China Sea in recent decades, how this genus is distributed in this area is largely unknown. A new fossil species, Provanna dongshaensissp. nov., collected from the hydrate-bearing sediments in the cold seep area of northern SCS, was studied. A basic morphological description together with the observation of shell microstructures was made, and a brief comparison to known Provanna species was summarized. The occurrence depths of this new species are consistent with the remarkable negative carbon isotope of carbonate layers, which mutually supports the relationship to the ancient seep. Such sedimentary samples from drilling cores may be potentially better materials for systematic research of deep-sea gastropods and other chemosynthesis fauna.
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NATALICCHIO, M., J. PECKMANN, D. BIRGEL, and S. KIEL. "Seep deposits from northern Istria, Croatia: a first glimpse into the Eocene seep fauna of the Tethys region." Geological Magazine 152, no. 3 (2014): 444–59. http://dx.doi.org/10.1017/s0016756814000466.
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AbstractThree isolated limestone deposits and their fauna are described from a middle Eocene Flysch succession in northwestern Istria, Croatia. The limestones are identified as ancient methane-seep deposits based on fabrics and characteristic mineral phases, δ13Ccarbonatevalues as low as −42.2 ‰ and13C-depleted lipid biomarkers indicative of methane-oxidizing archaea. The faint bedding of the largest seep deposit, the great dominance of authigenic micrite over early diagenetic fibrous cement, as well as biomarker patterns indicate that seepage was diffusive rather than advective. Apart from methanotrophic archaea, aerobic methanotrophic bacteria were present at the Eocene seeps as revealed by13C-depleted lanostanes and hopanoids. The observed corrosion surfaces in the limestones probably reflect carbonate dissolution caused by aerobic methanotrophy. The macrofauna consists mainly of chemosymbiotic bivalves such as solemyids (Acharax), thyasirids (Thyasira) and lucinids (Amanocina). The middle Eocene marks the rise of the modern seep fauna, but so far the fossil record of seeps of this age is restricted to the North Pacific region. The taxa found at Buje originated during the Cretaceous Period, whereas taxa typical of the modern seep fauna such as bathymodiolin mussels and vesicomyid clams are absent. Although this is only a first palaeontological glimpse into the biogeography during the rise of the modern seep fauna, it agrees with biogeographic investigations based on the modern vent fauna indicating that the dominant taxa of the modern seep fauna first appeared in the Pacific Ocean.
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Feng, Dong, Duofu Chen, and Jörn Peckmann. "Rare earth elements in seep carbonates as tracers of variable redox conditions at ancient hydrocarbon seeps." Terra Nova 21, no. 1 (2009): 49–56. http://dx.doi.org/10.1111/j.1365-3121.2008.00855.x.
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Wei, Jiangong, Tingting Wu, Wei Zhang, et al. "Deeply Buried Authigenic Carbonates in the Qiongdongnan Basin, South China Sea: Implications for Ancient Cold Seep Activities." Minerals 10, no. 12 (2020): 1135. http://dx.doi.org/10.3390/min10121135.
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Cold seep carbonates are important archives of pore water chemistry and ancient methane seepage activity. They also provide an important contribution to the global carbon sink. Seep carbonates at three sediment layers (3.0, 52.1, and 53.6 mbsf) were collected at site W08B in the Qiongdongnan Basin of the South China Sea. This study investigated the mineralogy, microstructure, stable carbon and oxygen isotopes, trace elements, and U-Th dates of these carbonates to identify the relationship between methane flux and authigenic carbonate precipitation. The results showed that the δ13C and δ18O values of all carbonates are similar, indicating that the carbon source for shallow carbonates and deep carbonates has remained constant over time and included biogenic and thermogenic methane. Although carbonates were found in three sediment layers, the two main stages of methane seepage events were discernible, which was likely caused by the dissociation of gas hydrates. The first methane seep took place at 131.1–136.3 ka BP. During a dramatic drop in the sea level, the seep carbonate at 52.1 mbsf formed at 136.3 ka BP through the anaerobic oxidation of methane (AOM). The carbonate at 53.6 mbsf resulted from the vertical downward movement of the sulfate-methane transition zone with decreasing methane flux at 131.1 ka BP. This is the reason for the age of carbonates at 52.1 mbsf being older than the age of carbonates at 53.6 mbsf. The second methane seep took place at 12.2 ka BP. Shallow carbonate formed at that time via AOM and is now located at 3 mbsf. Moreover, thin-section photomicrographs of deep carbonate mainly consisted of matrix micrite and biological debris and acicular aragonite occurred as vein cement filling the pore spaces between the matrix micrite. The acicular aragonite was mainly influenced by the timing of the carbonate precipitation of minerals. This research identified a long history of methane seep activity reflected by the vertical distribution of carbonates.
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Goedert, James L., Jörn Peckmann, and Joachim Reitner. "Worm tubes in an allochthonous cold-seep carbonate from lower Oligocene rocks of western Washington." Journal of Paleontology 74, no. 6 (2000): 992–99. http://dx.doi.org/10.1017/s002233600001756x.
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Tubes suspected to be those of vestimentiferan worms are abundant in carbonate boulders at one locality in the lower Oligocene part of the Lincoln Creek Formation along the Canyon River, Grays Harbor County, Washington. The largest tubes exhibit the same general orientation and are arranged in clusters. The tube walls are preserved as aragonite that is, in some cases, replaced by silica. The original tube walls either had a high carbonate content or were indurated very early by aragonite mineralization of the organic wall. The carbonate cements around, on, and inside of the tubes were precipitated due to the microbial oxidation of hydrocarbons at a cold-seep. After lithification, the carbonate fragmented as it slid or slumped, along with other sedimentary debris, downslope into deeper waters. This is one of the few reports of an ancient cold-seep chemosynthetic community dominated by tube worms, and the third report of an allochthonous cold-seep carbonate within a deep-water depositional setting.
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Conti, Stefano, and Daniela Fontana. "Anatomy of seep-carbonates: Ancient examples from the Miocene of the northern Apennines (Italy)." Palaeogeography, Palaeoclimatology, Palaeoecology 227, no. 1-3 (2005): 156–75. http://dx.doi.org/10.1016/j.palaeo.2005.04.032.
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GUAN, Hongxiang, Lanfang XU, Qinxian WANG, Duofu CHEN, Nengyou WU, and Shengyi MAO. "Lipid Biomarkers and Their Stable Carbon Isotopes in Ancient Seep Carbonates from SW Taiwan, China." Acta Geologica Sinica - English Edition 93, no. 1 (2019): 167–74. http://dx.doi.org/10.1111/1755-6724.13772.
Full textDissertations / Theses on the topic "Ancient seep"
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Miyajima, Yusuke. "Origin of methane at ancient methane seeps inferred from organic geochemical signatures in seep carbonates." Kyoto University, 2018. http://hdl.handle.net/2433/232261.
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Morelli, Erica C. "Pillars and Buttes: A Petrologic Comparison of Modern and Ancient Hydrocarbon Seep Rock." Oberlin College Honors Theses / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=oberlin1433780589.
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Ewen, Sarah Maree. "Diagenetic evolution of some modern and ancient cold seep-carbonates from East Coast Basin, New Zealand." The University of Waikato, 2009. http://hdl.handle.net/10289/2788.
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Cold seep-carbonates are the microbially mediated by-products of the anaerobic oxidation of methane (AOM) at seafloor cold seeps, and are widespread about modern continental margins and in the geologic record. Some modern and Miocene examples of cold seep-carbonates from the East Coast Basin, North Island, New Zealand have been analysed in this study, to characterise and determine their carbonate fabrics, elemental and mineralogical composition, and stable δ18O and δ13C isotope signatures, so as to provide insights into the diagenetic changes associated with the lithification and burial of seep-carbonates. The ancient samples were collected from the onshore middle Miocene Tauwhareparae (TWP) seep deposit, while the modern samples were obtained from the National Institute of Water and Atmosphere (NIWA) Cruise TAN0616 (November 2006) from Ritchie Ridge, offshore Hikurangi Margin. A paragenetic sequence of diagenetic events involving early aragonitic phases, followed by late calcitic phases is defined for the seep-carbonates. This sequence likely has relevance for understanding the fluid-cement histories of seep-carbonates more widely. Two main carbonate mineralogies occur in each of the sample groups - modern samples are aragonitic or dolomitic, while the ancient ones consist dominantly of either aragonite or calcite. Thus, aragonite common to both sample groups, and is interpreted to represent the initial primary carbonate precipitate in hydrocarbon seep provinces under specific fluid flux and local pore-water chemistry conditions. Aragonite morphologies range from microcrystalline carbonate ('micarb'), to acicular aragonites that may form botryoids or spherulites. Dolomite occurs in those modern samples which appear to constitute exhumed remnants of a former subsurface 'seep plumbing system', and so are strictly not true seabed 'seep-carbonates', but instead are part of the larger hydrocarbon seep province. Calcite in the ancient samples is either a product of alteration and neomorphic transformation of aragonite, or derives from late stage cementation from burial fluids. As a result of their formation processes, the calcites are generally recrystallised and have equant or 'cellular' textures. Stable δ13C and δ18O isotope cross-plots reveal a large spread of values for the sample groups. Ancient samples range from δ13C -8 to -50 PDB and δ18O -5.5 to +2 PDB. Modern samples have δ13C values from -6 to -41 PDB and δ18O values ranging from +2.6 to +6.7 PDB. The δ13C values suggest the majority of the methane that formed these seep-carbonates is of thermogenic origin, although some mixing from other carbon sources may have occurred. The positive δ18O signatures are suggestive of carbonate formation during dissociation of gas hydrates, while the negative values possibly indicate that some of the formation fluids were warmer than normal in the 17 - 30 C range.
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MOURA, ANA CECILIA OLIVEIRA. "THE MADNESS SEED: THE GERM OF TRANSGRESSION IN RADUAN NASSAR S ANCIENT TILLAGE." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2017. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=30675@1.
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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE SUPORTE À PÓS-GRADUAÇÃO DE INSTS. DE ENSINO<br>A semente do desatino: o germe da transgressão em Lavoura arcaica consiste em uma análise do romance de Raduan Nassar, tomando o conceito de transgressão como operador de leitura na interface entre literatura e psicanálise. Tem como objetivo aproximar a estrutura narrativa da obra à questão do excesso, presente no traço barroco da escrita nassariana e no verbo colérico e disruptivo de André. O romance é perpassado pela ideia de transbordamento, encontrando seu ápice no embate entre pai e filho, no incesto e no filicídio; a pesquisa se propõe a investigar essa noção a partir das concepções de gozo em Jacques Lacan e de erotismo em Georges Bataille, além da contribuição teórica de Sigmund Freud, Friedrich Nietzsche, Michel Foucault, entre outros.<br>The madness seed: the germ of transgression in Raduan Nassar s Ancient Tillage consists of an analysis of Raduan Nassar s romance, considering the concept of transgression as the reading operator at the interface between literature and psychoanalysis. Its object is to link the novel s narrative structure to the subject of the excess, always present at the baroque style of the nassarian writing and at the fiery-tempered and disruptive speech of André. The romance is entangled by the idea of overflowing, finding its apex at the shock between father and son, at the incest and at the filicide; the research investigate this notion starting from the concepts of jouissance as for Jacques Lacan and erotism as for Georges Bataille, including also the theoretical contribution of Sigmund Freud, Friedrich Nietzsche, Michel Foucault, amongst others.
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Day, Shelley Anne. "Documenting modern and ancient methane release from cold seeps using deep-sea benthic foraminifera." [Gainesville, Fla.]: University of Florida, 2003. http://purl.fcla.edu/fcla/etd/UFE0000672.
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Stein, Nancy Carol. "Using the visual to "see" absence| The case of Thessaloniki." Thesis, Florida Atlantic University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3571437.
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<p> Thessaloniki, a city with an Ottoman, Byzantine, and Sephardic past, is located in the Balkan area of Macedonia, in northern Greece. Its history is the story of people who have come from someplace else. For several hundred years, the majority population of the city was comprised of Spanish speaking Sephardic Jews who contributed to all aspects of the development of the city. This significant presence is no longer visible unless one specifically knows where to look for its traces. It is not a history that has been silenced or erased, but rather obliterated. In this dissertation, I present the documented presence and transformations of the Jewish population in Thessaloniki from the earliest contributions to present day. This work on absence uses visual anthropology to explore the present day urban environment through an ethnographic account of the city of Thessaloniki. The visual is used to investigate how cities present their past and how people learn to see the world, what reflects their world vision, and the ways their vision is socially and culturally influenced. Anthropology is concerned with material artifacts that act as representatives of the past and as visual symbols. This is a work about what happens when intentionally omitted histories remain absent from the public sphere. What remains physically present but unrepresented proves equally important in creating and reinforcing memory. Our relationship to our environment also may be compromised by what is absent. This project examines absence through the circumstances by which the past is represented in the present, and looks at how the past is experienced in ways that may be used to invoke, challenge, or re-direct the way a community is remembered.</p>
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Vallières, Claudine. "A taste of Tiwanaku: daily life in an ancient Andean urban center as seen through cuisine." Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=114168.
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This dissertation explores issues of identity at Tiwanaku, the urban cosmopolitan capital of an ancient Andean polity. This is done through an in-depth investigation of domestic culinary practices within the non-elite neighbourhood of Mollo Kontu. Recent research on the creation and maintenance of Tiwanaku socio-political relations has emphasized the importance of communal feasting events as the process through which residents were integrated into a broad Tiwanaku inclusive state identity. In particular, the consumption of maize beer (chicha), and the use of attractive ceramic paraphernalia attached to chicha production and consumption, are viewed as key aspects of the consensual integration to the Tiwanaku lifestyle. Results from my investigation of everyday culinary practices suggest that this Tiwanaku state inclusive identity was not as universally accepted as previously suggested. A detailed analysis of faunal remains from selected domestic contexts is presented and integrated with ceramic, paleoethnobotanical, ichtyoarchaeological, and bioarchaeological results, to illustrate the chaîne opératoire of cuisine at Mollo Kontu. I demonstrate that its residents managed their own camelid herds for meat production and consumption, independently from the Tiwanaku state. Their presence represents the exploitation of a shared food preference rather than an epiphenomenon of the residents' economic and political situation. Mollo Kontu daily cuisine emphasized and valued the ingestion of local resources, especially domesticated camelids, in contrast to the Tiwanaku state identity manifested in the commensal consumption of beer made of non-local maize. This suggests both an independence from the state, and the reinforcement of a local highland identity through the ingestion of locally produced staples, in an increasingly cosmopolitan urban context. Combined with isotopic results which showed Mollo Kontu residents consumed little maize, I argue that Mollo Kontu residents did not fully embrace the pluri-ethnic nature of the Tiwanaku state; in their daily lives they embraced their local roots through their culinary practices.<br>Cette dissertation explore des phénomènes identitaires ayant cours à Tiwanaku, capitale urbaine et cosmopolitaine d'une ancienne unité politique andine, grâce à l'étude approfondie des pratiques culinaires domestiques associées au quartier non-élite de Mollo Kontu. Des recherches récentes sur la création et le maintien des relations socio-politiques à Tiwanaku insistent sur le rôle stratégique des festins communautaires dans l'intégration des résidents à l'intérieur d'une même identité étatique Tiwanaku, vaste et inclusive. Plus particulièrement, la consommation de bière de maïs (chicha) et l'utilisation de céramiques d'une grande qualité esthétique pour la production et la consommation de chicha sont vues comme jouant un rôle clé dans l'intégration consensuelle des résidents à l'intérieur d'un mode de vie Tiwanaku. Les résultats de mon étude des pratiques culinaires quotidiennes (à Mollo Kontu) indiquent toutefois que cette identité étatique Tiwanaku n'était pas universellement acceptée, contrairement à ce que les études antérieures suggéraient. Une analyse détaillée des restes fauniques provenant d'une sélection de contextes domestiques est présentée et combinée à des résultats obtenus à partir de vestiges céramiques, paléobotaniques, ichtyologiques et bioarchéologiques afin d'illustrer la chaîne opératoire des pratiques culinaires à Mollu Kontu. Je démontre que les résidents de ce quartier géraient leurs propres troupeaux de camélidés à des fins de production et de consommation, et ce indépendemment de l'état de Tiwanaku. Je soutiens que l'existence de ces troupeaux n'est pas qu'un épiphénomène résultant de la situation socioéconomique des résidents, mais bien le reflet d'une préférence culinaire partagée. La cuisine quotidienne de Mollo Kontu favorisait et mettait en valeur l'ingestion de ressources locales, notamment celle de camélidés domestiques, et contrastait en cela avec l'identité étatique Tiwanaku qui se manifestait par la consommation commensale de bière produite à partir de maïs, une ressource non-locale. Ceci suggère à la fois une indépendence face à l'état et le l'existence d'une identié locale associée aux hautes-terres et renforcée par l'ingestion de produits du terroir, dans un contexte urbain de plus en plus cosmopolitain. Sur la base de ces données, combinées à des résultats d'analyse isotopique démontrant que les résidents de Mollo Kontu consommaient très peu de maïs, je soutiens que ceux-ci n'adhéraient pas complétement au caractère multi-ethnique de l'état de Tiwanaku; dans leur vie quotidienne ils célébraient leurs racines locales par le biais de leurs pratiques culinaires.
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Overton, Shawna Dolansky. "Now you see it, now you don't : biblical perspectives on the relationship between magic and religion /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2002. http://wwwlib.umi.com/cr/ucsd/fullcit?p3064470.
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Woods, Holly Irene. "Amazons of the Ancient World: Women in Greek and Roman Societies as Seen in the Amazon Myth." Digital Commons @ East Tennessee State University, 2010. https://dc.etsu.edu/etd/1716.
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The myth of the Amazons began in Ancient Greece. Renditions of the myth were found in art and literature of the Greeks and Romans in the ancient world. The image of the Amazons changed with the culture and ideology that discussed them. The Amazon myth reflected Greek and Roman views of women. Through looking closely at the three stages of the myth of the Amazons one can determine the myth strengthens the image of women that was held by men of the ancient world. The Amazons were connected with the heroes Heracles, Theseus, and Alexander the Great. Individual Amazons such as Antiope, Penthesilea, and Camilla were also dominant in the mythology of the Amazons. By completing a literary analysis of the myths of the Amazons beginning in the eighth century B.C. and through the fourth century A.D. one is able to see what was expected and deemed acceptable of women.
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Somel, Mehmet. "Characterisation Of Dna From Archaeological Wheat (triticum L.) Seeds From Anatolia." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1082957/index.pdf.
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Ancient DNA analysis of archaeological wheat remains may serve to clarify
unknown or controversial points in the history of wheat. In the first part of this study,
extraction and amplification of DNA from Anatolian charred ancient wheat seeds obtained
from different locations and ages was attempted. None of the our extraction samples yielded
any PCR amplification. The possible reasons for this result were investigated by constructing
an artificial charring experiment. The results suggest that the chances of obtaining DNA
from the charred archaeological samples used in this study by the methods used are very
low. Moreover, strong PCR inhibition by these charred seed extracts was observed.
The second part of the study aimed to develop new DNA based markers for ancient
wheat DNA analysis. Markers linked to the brittle rachis character exhibiting domestication
status were sought, but no result was obtained. Primers targeting plasmon sequences were
developed and tested. A primer pair amplifying a 400 bp portion of the chloroplast TrnLTrnF
intergenic region was focused upon. A short piece of this region was amplified using
ancient wheat DNA extracted in another study. This short piece appeared non-polymorphicupon sequencing. The sequence spanning a wider portion of this region contained a number
of length polymorphisms. Phylogenetic reconstruction using maximum parsimony showed
that these polymorphisms were able to distinguish wheat taxa at the maternal ancestor level.
Books on the topic "Ancient seep"
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Kaim, Andrzej, J. Kirk Cochran, and Neil H. Landman, eds. Ancient Hydrocarbon Seeps. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05623-9.
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Flower, Michael Attyah. The seer in ancient Greece. University of California Press, 2008.
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Adrian, Sington, Snook Charlotte ill, Saunders Mike ill, and McCaig Rob ill, eds. See inside an ancient Chinese town. Warwick Press, 1986.
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Hughes-Stanton, Penelope. See inside an ancient Chinese town. 2nd ed. Kingfisher, 1986.
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Rutland, Jonathan. See inside an ancient Greek town. Edited by Sington Adrian and Stallion Bill ill. Warwick Press, 1986.
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Adrian, Sington, and Stallion Bill ill, eds. See inside an ancient Greek town. Warwick Press, 1986.
Find full textBook chapters on the topic "Ancient seep"
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Saether, Kristian P., Crispin T. S. Little, Kathleen A. Campbell, Campbell S. Nelson, and David A. Francis. "Ancient New Zealand Seep Limestones." In Topics in Geobiology. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05623-9_18.
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Miyajima, Yusuke, and Robert G. Jenkins. "Biomarkers in Ancient Hydrocarbon Seep Carbonates." In Topics in Geobiology. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05623-9_2.
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Hryniewicz, Krzysztof. "Ancient Seep Carbonates: From Outcrop Appearance to Microscopic Petrography." In Topics in Geobiology. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05623-9_3.
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Gong, Shanggui, Jörn Peckmann, and Dong Feng. "Stable Isotope Signatures of Authigenic Minerals from Methane Seeps." In South China Sea Seeps. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1494-4_9.
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AbstractAuthigenic minerals forming at marine seeps constitute an excellent archive of past methane seepage and biogeochemical processes. Over the past two decades, authigenic carbonate and sulfur-bearing minerals from methane seeps of the South China Sea (SCS) have been widely investigated, providing insight into fluid sources and seepage dynamics and facilitating the establishment of geochemical proxies to trace sulfate-driven anaerobic oxidation of methane (SD-AOM). Authigenic carbonates from all seep sites in the SCS commonly exhibit low δ13C and high δ18O values, confirming the incorporation of methane-derived carbon and oxygen from a pore water pool probably affected by gas hydrate dissociation. Pyrite is a common authigenic mineral at methane seeps, also forming at low methane flux where authigenic carbonate tends to be absent. The identification of methane seepage and SD-AOM activity consequently benefited from the advancement of sulfur isotope geochemistry, particularly from in situ measurements of δ34Spyrite values using nanoSIMS and multiple sulfur isotopes. Quantification of carbon and sulfur fluxes in the course of SD-AOM in modern and ancient marine sedimentary environments remains challenging, highlighting the need for more field-based research and modeling work. Furthermore, other elemental cycles and biogeochemical processes at methane seeps archived in authigenic minerals, such as nitrogen-based metabolisms, remain largely unknown. We highlight that SCS seeps are fascinating natural laboratories to better understand methane-driven biogeochemical processes and their signatures in authigenic minerals, representing a rewarding but also challenging object of research in the field of geomicrobiology.
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Kaim, Andrzej, J. Kirk Cochran, and Neil H. Landman. "Correction to: Ancient Hydrocarbon Seeps." In Topics in Geobiology. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05623-9_21.
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Amano, Kazutaka, Steffen Kiel, Krzysztof Hryniewicz, and Robert G. Jenkins. "Bivalvia in Ancient Hydrocarbon Seeps." In Topics in Geobiology. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05623-9_10.
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Hryniewicz, Krzysztof. "Ancient Hydrocarbon Seeps of the World." In Topics in Geobiology. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05623-9_20.
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Vinn, Olev. "Calcareous Tubeworms in Ancient Hydrocarbon Seeps." In Topics in Geobiology. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-05623-9_7.
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Flemming, Rebecca. "One-seed, two-seed, three-seed? Reassessing the fluid economy of ancient generation *." In Bodily Fluids in Antiquity. Routledge, 2021. http://dx.doi.org/10.4324/9780429438974-14.
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Bardi, Ugo. "Conclusion: Collapse as Seen in Ancient Philosophy." In Before the Collapse. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-29038-2_5.
Full textConference papers on the topic "Ancient seep"
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Kalchenko, Valeriya. "INFLUENCE OF MODERN MASS MEDIA ON MORAL AND SOCIAL COGNITION: HOW KREMLIN'S PROPAGANDA BECAME ONE OF THE MAIN CAUSES OF THE RUSSIA-UKRAINE WAR, 2014-2024." In 11th SWS International Scientific Conferences on SOCIAL SCIENCES - ISCSS 2024. SGEM WORLD SCIENCE, 2024. https://doi.org/10.35603/sws.iscss.2024/s07/41.
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Propaganda was historically a neutral descriptive term; it was used by playwrights in ancient Greece to express the act of promoting political and religious beliefs. In the 19th century, with the birth of the press, cinema and radio, propaganda transformed into a tool destined to shape people�s beliefs and behaviours. It is generally biased, misleading, or even false to promote a specific agenda or point of view. Especially in Europe, in the first half of the 20th century, propaganda was used by European dictatorial regimes: Nazism, Fascism and Communism for popular consensus building and political repression; and it�s still widely used nowadays for the same proposition by current autocratic regimes around the world. The main purpose of this article is to demonstrate how Kremlin propaganda is used thanks to modern mass communication methods and technologies to influence the social and moral cognition of Russian society to start and continue the 10 year-long war against Ukraine, all now in progress. In this study we demonstrate how the Russian propaganda also as one of main causes of war itself. Because to start a war it is necessary to have first the consent of one�s own people who accept, support and justify the invasion of another country and here the main role is played by propaganda of Putin�s political regime. Well-thought-out Kremlin�s propaganda has constantly incited different fears in individuals through using persuasive neurolinguistic techniques: in information texts, in social networks, and especially on TV; by doing so over the past 20 years has turned at least 80% of Russian society into people who exist in a parallel reality and seem to have no critical thinking. The phenomenon of propaganda and its social and moral damage is analysed using quantitative, qualitative, analytical and descriptive research methods. Furthermore, thanks to this research, we are trying to understand if and how it will be possible to effectively counter the Kremlin�s propaganda machine. The paper�s results suggest communicative and social tools that could change public opinion in Russia and spread the truth about the war. Unfortunately, this would only be possible after the end of the war and the transition of the Kremlin dictatorial regime to a democratic one. Future research may sometimes attempt to identify the most effective means and strategies to achieve this goal, hopefully to be able to implement these soon.
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Wheeler, Dacia. "GIANT COLUMNAR CARBONATE CHIMNEYS IN THE UPPER CRETACEOUS WILLIAMS FORK FORMATION, NORTHEASTERN UTAH: AN EXCEPTIONALLY PRESERVED ANCIENT SEEP SYSTEM?" In GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania. Geological Society of America, 2023. http://dx.doi.org/10.1130/abs/2023am-395139.
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Vorsheva A.V., A. V., and I. I. Dmitrievskaya I.I. "SEED HEMP (CANNABIS SATIVA L.): MEANING and USE." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-33.
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Cannabis sativa is a traditional agricultural crop in Russia, it has been used since ancient times and continues to be used today for the production of spinning fiber and hemp oil. The article presents a biological description, meaning and main directions of use of cannabis seed.
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"Ethos, Pathos and Logos: Rhetorical Fixes for an Old Problem: Fake News." In InSITE 2019: Informing Science + IT Education Conferences: Jerusalem. Informing Science Institute, 2019. http://dx.doi.org/10.28945/4154.
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Aim/Purpose: The proliferation of fake news through social media threatens to undercut the possibility of ascertaining facts and truth. This paper explores the use of ancient rhetorical tools to identify fake news generally and to see through the misinformation juggernaut of President Donald Trump. Background: The ancient rhetorical appeals described in Aristotle’s Rhetoric—ethos (character of the speaker), pathos (nature of the audience) and logos (message itself)—might be a simple, yet profound fix for the era of fake news. Also known as the rhetorical triangle and used as an aid for effective public speaking by the ancient Greeks, the three appeals can also be utilized for analyzing the main components of discourse. Methodology: Discourse analysis utilizes insights from rhetoric, linguistics, philosophy and anthropology in in order to interpret written and spoken texts. Contribution This paper analyzes Donald Trump’s effective use of Twitter and campaign rallies to create and sustain fake news. Findings: At the point of the writing of this paper, the Washington Post Trump Fact Checker has identified over 10,000 untruths uttered by the president in his first two years of office, for an average of eight untruths per day. In addition, analysis demonstrates that Trump leans heavily on ethos and pathos, almost to the exclusion of logos in his tweets and campaign rallies, making spectacular claims, which seem calculated to arouse emotions and move his base to action. Further, Trump relies heavily on epideictic rhetoric (praising and blaming), excluding forensic (legal) and deliberative rhetoric, which the ancients used for sustained arguments about the past or deliberations about the future of the state. In short, the analysis uncovers how and ostensibly why Trump creates and sustains fake news while claiming that other traditional news outlets, except for FOX news, are the actual purveyors of fake news. Recommendations for Practitioners: Information systems and communication practitioners need to be aware of the ways in which the systems they create and monitor are vulnerable to targeted attacks of the purveyors of fake news. Recommendation for Researchers: Further research on the identification and proliferation of fake news from a variety of disciplines is needed, in order to stem the flow of misinformation and untruths through social media. Impact on Society: The impact of fake news is largely unknown and needs to be better understood, especially during election cycles. Some researchers believe that social media constitute a fifth estate in the United States, challenging the authority of the three branches of government and the traditional press. Future Research: As noted above, further research on the identification and proliferation of fake news from a variety of disciplines is needed, in order to stem the flow of misinformation and untruths through social media.
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Li, Jikai. "LU XUN’S VIEWS ON THE CULTURE OF THE “GREAT MODERN” FROM THE POINT OF VIEW OF CULTURAL INTEGRATION." In 10th International Conference "Issues of Far Eastern Literatures (IFEL 2022)". St. Petersburg State University, 2023. http://dx.doi.org/10.21638/11701/9785288063770.21.
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Lu Xun is a cultural giant standing in the cultural field of “post ancient” China’s “great modern”, and is “the soul of modern Chinese nation”. In the period of “post ancient” historical transformation, he created and formed the “great modern” cultural view through the cultural running in of ancient, modern, Chinese and foreign cultures. His understanding of culture has the following features: one should see changes from antiquity to modernity, the greatness of chinese and foreign, and the feelings of people, besides, it should become stronger, thanks to changes, openness to the world and great love. All this clearly shows that the direction of “the new Chinese culture nation”, which Lu Xun represented. People who devote themselves to Lu Xun’s research have found a very rich cultural thought and spirit from the cultural crystallization he created. They can’t help but praise it as “Encyclopedia” and regard the corresponding research as “Lu Xue (Learning of Lu Xun)”. The prosperity of “Lu Xue” is closely related to the Chinese people’s pursuit of “great modern culture”. Lu Xun, an individual of ideology and culture, accepted and created the ancient and modern cultural and ideological resources he came into contact with, and formed his own cultural thoughts through creative running in and integration. A single cultural resource can’t make Lu Xun. Understanding Lu Xun with linear thinking or opposite thinking will inevitably lead to discrepancy. It is the meeting and running in of various cultures that made Lu Xun complete, and thus made it possible for “Chinese Lu Xun” to go to the world.
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Pisani, Francesco. "The town of Collodi: the vernacular heritage." In HERITAGE2022 International Conference on Vernacular Heritage: Culture, People and Sustainability. Universitat Politècnica de València, 2022. http://dx.doi.org/10.4995/heritage2022.2022.15670.
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The town of Collodi consists mainly of two parts, the ancient village perched on the hill and a settlement in the valley. The ancient castle, of which we have accurate information only after the twelfth century, still retains many of the characteristics of a medieval village. The planimetric development of this small settlement is highly interesting: both the main roads and the building aggregates follow the lines of the maximum slope of the hill, giving the entire skyline a cascading pattern. In the past two centuries, the castle of Collodi has not seen significant expansions beyond the perimeter of its ancient walls. Only the external roads have been adapted to the traffic of cars while movement inside the walls has remained exclusively pedestrian. For this reason, the structure still retains, for the most part, the vernacular features of the small settlements of northern Tuscany. These characteristics can be traced back using both the construction techniques and the typological elements. Through a careful study and an in-depth analysis of the buildings that characterize its typical elements, the vernacular architecture of the town can be both safeguarded and valorised. This paper means to illustrate the first results of the study on the entire vernacular heritage of Collodi, both the materials used and the architecture, which resulted in the identification of the unchanged parts of the buildings and the distinctive features that have been preserved, as well as the definition of the necessary guidelines for their restoration
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Canonaco, Brunella, and Francesc Bilotta. "Lettura del sistema fortificato della fascia Tirrenica calabrese attraverso le iconografie storiche." In FORTMED2020 - Defensive Architecture of the Mediterranean. Universitat Politàcnica de València, 2020. http://dx.doi.org/10.4995/fortmed2020.2020.11527.
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Knowledge of fortified centres of the Tyrrhenian coast of Calabria through historical documentsThis paper offers suggestions for the knowledge of fortified centres of the Tyrrhenian coast of Northern Calabria, through a critical reading of ancient graphic representations of this territory. The exegetical reading of these ancient landscapes has been supported by the notes extracted from literary sources and data deduced from analytical procedures conducted on the assets. The essential characters of the fortresses and the areas surrounding castles have been identified, recognizing the dynamics of settlements, explaining their formal, functional and constructive characters, and verifying the signs of permanence and variance through time. In the surveyed area, the castles are commonly located on hilltops, overlooking the sea and controlling the territory and villages. Because of its dense defence fabric, made of manors and towers, this area can be seen as one of the most representative of the whole Region. The study of this heritage is essential for the comprehension of the historical and architectural characters of the area, and therefore for the enhancement of the built landscape of the entire Mediterranean basin.
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Arapu, Valentin. "Leprosy in the context of medical folklore and magical medicine (ethnocultural aspects)." In Simpozion internațional de etnologie: Tradiții și procese etnice, Ediția III. Institute of Cultural Heritage, Republic of Moldova, 2023. http://dx.doi.org/10.52603/9789975841733.02.
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Leprosy has been known since ancient times, and has been reported in civilizations that have survived from antiquity to the present day. Lepers were treated in a contradictory way, being simultaneously excluded from social life, but also tolerated by certain secular and ecclesiastical institutions. Th e plague terrifi ed the people even though they had never seen a leper alive. Leprosy is considered an ugly disease, „destroying body and soul”, „serious and bad disease of the skin and of the body”, „an evil without cure”, a hideous disease that cripples, disfi gures man until you cannot recognize him. In Romanian folklore, the appearance of leprosy is attributed to curse. According to a legend collected in Ialoveni, Emperor Alexander of Macedon cursed the gypsies with leprosy disease for lying to him, when they declared that they had nothing to pay tribute with, because of poverty, in fact having sumptuous houses, covered with gold. In another folklore source collected in Wallachia, an emperor’s daughter was cured of leprosy by Saint Basil, who used a stew of tobacco fl owers as a remedy. Leprosy has been known since ancient times, and has been reported in civilizations that have survived from antiquity to the present day. Lepers were treated in a contradictory way, being simultaneously excluded from social life, but also tolerated by certain secular and ecclesiastical institutions. Th e plague terrifi ed the people even though they had never seen a leper alive. Leprosy is considered an ugly disease, „destroying body and soul”, „serious and bad disease of the skin”.
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DISSANAYAKE, Ishini Samadhi. "HAPPINESS THROUGH THE CONFUCIUS’S PHILOSOPHICAL THEORY." In Proceedings of The Third International Scientific Conference “Happiness and Contemporary Society”. SPOLOM, 2022. http://dx.doi.org/10.31108/7.2022.13.
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Confucius was born over 2,500 years ago and Confucius died at the age of 72 in 479 BCE (Rainey 2010: 21). Though he is called Confucius throughout most of the world, that name is actually the Latinized form of his Chinese name, Kong Fuzi, or Master Kung (Dorothy & Hoobler 2009: 10).Confucianism became the ascendant philosophical system of China for more than 2,000 years. It is a system of thought based on the teachings of Confucius, who lived from 551 to 479 BCE (Dorothy & Hoobler 2009: 10). It has been imbued in every aspect of Chinese life which steeps through its history, state affairs and social life. Most importantly, its ethics aided immensely to shape society and remarkably impacted on daily lives. Consequently, still on any given day one can see hundreds and hundreds of people, most in family groups or tour groups visit Confucius’ birthplace in the Chinese city of Qufu which is considered as a UNESCO World Heritage Site. The Confucianism elements also can be seen in Vietnamese, Korean, and Japanese cultures due to the expansion of Chinese civilization. Thus, the majority of the three million tourists who visit Confucius’ birthplace within a year are from China, Korea or Japan. Even though in the past decades East Asia has had a blistering phase of modernization, one can still see that Chinese, Korean, or Japanese remnants contending with the ancient morals of Confucius. “Confucius, then, ranks with Abraham, Jesus, Muhammad, and Siddhartha Gautama (better known as the Buddha), and Aristotle and Plato, as one of the founders of modern civilization” (Schuman 2015: 14).
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Young, Choi So. "A STUDY ON THE ORIGIN OF CHEOYONG: THE ANCIENT CULTURAL EXCHANGE BETWEEN CENTRAL ASIA AND KOREA." In UZBEKISTAN-KOREA: CURRENT STATE AND PROSPECTS OF COOPERATION. OrientalConferences LTD, 2021. http://dx.doi.org/10.37547/ocl-01-18.
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In 879 (or 875), Cheoyong, who appeared with several people wearing unfamiliar appearance and strange clothes, performed singing and dancing in front of the king of Silla. After that, he moved to the capital with the king, and it is believed that he performed there. According to the legend, Cheoyong, who came in late at night after performing, found that the god of smallpox was with his wife, sang and danced without anger. The god, who saw Cheoyong's behavior, said he would not invade the place where his image was painted, so his portrait later served as an amulet to prevent disease and ghosts. After that, Cheoyong has left somewhere and his dances and songs remained as Cheoyongmu(dance of Cheoyong) and Cheoyongga(song of Cheoyoung), settling down as a Korean folk art. Cheoyong is seen as a sogd performer who escaped from the political turmoil in China when looking at his appearance, his profession, and the situation at the time, which was not familiar to Koreans.
Reports on the topic "Ancient seep"
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Griffin, Isabella B. Improving the Raster Scanning Methods used with X-ray Fluorescence to See the Ancient Greek Text of Archimedes (SULI Paper). Office of Scientific and Technical Information (OSTI), 2006. http://dx.doi.org/10.2172/877994.
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Orhan, Nilüfer, Burak Temiz, Hale Gamze Ağalar, and Gökalp İşcan. Boswellia serrata Oleogum Resins and Extracts Laboratory Guidance Document. ABC-AHP-NCNPR Botanical Adulterants Prevention Program, 2022. http://dx.doi.org/10.59520/bapp.lgd/mqgn3574.
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Boswellia resins are described in numerous ancient texts and have been an important trade material for the civilizations located in the Arabian Peninsula and North Africa since at least the third millennium BCE. Frankincense (olibanum) is an exudate that seeps from injured bark of Boswellia species (Burseraceae). The oleogum resin obtained from Boswellia serrata is called Indian frankincense and is used in the Ayurvedic, Siddha, and Unani systems of traditional medicine. Additionally, its extracts and essential oils are used in soaps, cosmetics, foods, beverages, and incense products. This Laboratory Guidance Document aims to review the analytical methods used to authenticate natural oleogum resin from B. serrata and differentiate it from other Boswellia species, as well as other potential adulterants. This document can be used in conjunction with the B. serrata Botanical Adulterants Prevention Bulletin published by the ABC-AHP-NCNPR Botanical Adulterants Prevention Program in 2018.1 From a historical perspective, a number of oleogum resins from Boswellia species have been used interchangeably for medicinal purposes around the world, and older “olibanum” pharmacopeial monographs consider more than one species as officially acceptable. Such interchangeable use is still observed today as several Boswellia species are offered as frankincense.2,3 However, Western botanical dietary supplements and the herbal medicine markets are dominated by products labeled to contain B. serrata, irrespective of whether a formal identification of the ingredient has been performed or not. Therefore, this laboratory guidance document has been written to help laboratory analysts to find appropriate analytical methods that allow the unambiguous identification of B. serrata oleogum resin and its extracts.
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Tyson, Paul. Sovereignty and Biosecurity: Can we prevent ius from disappearing into dominium? Mέta | Centre for Postcapitalist Civilisation, 2021. http://dx.doi.org/10.55405/mwp3en.
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Drawing on Milbank and Agamben, a politico-juridical anthropology matrix can be drawn describing the relations between ius and bios (justice and political life) on the one hand and dominium and zoe (private power and ‘bare life’) on the other hand. Mapping movements in the basic configurations of this matrix over the long sweep of Western cultural history enable us to see where we are currently situated in relation to the nexus between politico-juridical authority (sovereignty) and the emergency use of executive State powers in the context of biosecurity. The argument presented is that pre-19th century understandings of ius and bios presupposed transcendent categories of Justice and the Common Good that were not naturalistically defined. The very recent idea of a purely naturalistic naturalism has made distinctions between bios and zoe un-locatable and civic ius is now disappearing into a strangely ‘private’ total power (dominium) over the bodies of citizens, as exercised by the State. The very meaning of politico-juridical authority and the sovereignty of the State is undergoing radical change when viewed from a long perspective. This paper suggests that the ancient distinction between power and authority is becoming meaningless, and that this loss erodes the ideas of justice and political life in the Western tradition. Early modern capitalism still retained at least the theory of a Providential moral order, but since the late 19th century, morality has become fully naturalized and secularized, such that what moral categories Classical economics had have been radically instrumentalized since. In the postcapitalist neoliberal world order, no high horizon of just power –no spiritual conception of sovereignty– remains. The paper argues that the reduction of authority to power, which flows from the absence of any traditional conception of sovereignty, is happening with particular ease in Australia, and that in Australia it is only the Indigenous attempt to have their prior sovereignty –as a spiritual reality– recognized that is pushing back against the collapse of political authority into mere executive power.
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Chamovitz, Daniel A., and Albrecht G. Von Arnim. eIF3 Complexes and the eIF3e Subunit in Arabidopsis Development and Translation Initiation. United States Department of Agriculture, 2009. http://dx.doi.org/10.32747/2009.7696545.bard.
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The original working hypothesis of our proposal was that The “e” subunit of eIF3 has multiple functions from both within the nucleus and in the cytoplasm. Within this model, we further hypothesized that the “e” subunit of eIF3 functions in translation as a repressor. We proposed to test these hypotheses along the following specific aims: 1) Determine the subcellular localization of the interaction between eIF3e and other eIF3 subunits, or the COP9 signalosome. 2) Elucidate the biological significance of the varied subcellular localizations of eIF3e through generating Arabidopsis eIF3e alleles with altered subcellular localization. 3.) Purify different eIF3e complexes by tandem affinity purification (TAP). 4) Study the role of eIF3e in translational repression using both in vitro and in planta assays. eIF3 is an evolutionarily ancient and essential component of the translational apparatus in both the plant and animal kingdoms. eIF3 is the largest, and in some ways the most mysterious, of the translation factors. It is a multi-subunit protein complex that has a structural/scaffolding role in translation initiation. However, despite years of study, only recently have differential roles for eIF3 in the developmental regulation of translation been experimentally grounded. Furthermore, the roles of individual eIF3 subunits are not clear, and indeed some, such as the “e” subunit may have roles independent of translation initiation. The original three goals of the proposal were technically hampered by a finding that became evident during the course of the research – Any attempt to make transgenic plants that expressed eIF3e wt or eIF3e variants resulted in seedling lethality or seed inviability. That is, it was impossible to regenerate any transgenic plants that expressed eIF3e. We did manage to generate plants that expressed an inducible form of eIF3e. This also eventually led to lethality, but was very useful in elucidating the 4th goal of the research (Yahalom et al., 2008), where we showed, for the first time in any organism, that eIF3e has a repressory role in translation. In attempt to solve the expression problems, we also tried expression from the native promoter, and as such analyzed this promoter in transgenic plants (Epel, 2008). As such, several additional avenues were pursued. 1) We investigated protein-protein interactions of eIF3e (Paz-Aviram et al., 2008). 2) The results from goal #4 led to a novel hypothesis that the interaction of eIF3e and the CSN meets at the control of protein degradation of nascent proteins. In other words, that the block in translation seen in csn and eIF3e-overexpressing plants (Yahalom et al., 2008) leads to proteasome stress. Indeed we showed that both over expression of eIF3e and the csn mutants lead to the unfolded protein response. 3) We further investigated the role of an additional eIF3 subunit, eIF3h, in transalational regulation in the apical meristem (Zhou et al., 2009). Epel, A. (2008). Characterization of eIF3e in the model plant Arabidopsis thaliana. In Plant Sciences (Tel Aviv, Tel Aviv University). Paz-Aviram, T., Yahalom, A., and Chamovitz, D.A. (2008). Arabidopsis eIF3e interacts with subunits of the ribosome, Cop9 signalosome and proteasome. Plant Signaling and Behaviour 3, 409-411. Yahalom, A., Kim, T.H., Roy, B., Singer, R., von Arnim, A.G., and Chamovitz, D.A. (2008). Arabidopsis eIF3e is regulated by the COP9 signalosome and has an impact on development and protein translation. Plant J 53, 300-311. Zhou, F., Dunlap, J.R., and von Arnim, A.G. The translation initiation factor subunit eIF3h is .1 involved in Arabidopsis shoot apical meristem maintenance and auxin response. (submitted to Development).
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Harrington, Matthew, Amanda Lanik, Chad Hults, and Patrick Druckenmiller. Focused condition assessment of paleontological resources within Katmai National Park and Preserve. National Park Service, 2023. http://dx.doi.org/10.36967/2298782.
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The paleontological resources (fossils) of Katmai National Park and Preserve (also referred to as ?the park? or ?Katmai? throughout this report) record the evolution of the park?s ancient life throughout most of the Mesozoic Era and portions of the Cenozoic Era (see Table 1 for a geologic time scale). A focused condition assessment (FCA) of the paleontological resources of Katmai was conducted in 2021; this report summarizes the findings of the FCA, including information on the park?s geology and paleontology, management issues related to paleontological resources, and the results of a field survey of the Kamishak Bay area. The FCA project also included fieldwork to monitor fossils at Kaguyak Point. The results of the Kaguyak Point monitoring are presented in Harrington et al. (In preparation). The first section of this report (?Paleontology?) examines the fossiliferous geologic units within Katmai as well as the fossils found within them. Fossils range from small bivalves and belemnites to large ammonites and a possible dinosaur bone. Plant fossils are abundant in the Eocene-aged Copper Lake Formation, Ketavik Formation, and Hemlock Conglomerate. The Jurassic-aged Naknek and Cretaceous-aged Kaguyak Formations are the most abundantly fossiliferous units within the park, containing ammonites, bivalves, brachiopods, gastropods, and other invertebrates. The ?Paleontological Resources Monitoring and Management? section of this report discusses potential threats to paleontological resources and management recommendations. The fossils within Katmai are nonrenewable resources that the NPS is mandated to protect, preserve, and manage. Fossils can be at risk of damage or loss from natural (e.g., erosion) and/or anthropogenic (e.g., unauthorized collection) forces. Damage or loss of fossils greatly reduces the scientific value they possess, as well as degrades the overall heritage of the park. Most of the park?s fossils have a low risk for anthropogenic impacts because many fossil sites are remote and receive little visitation. Areas in the park that contain fossils and receive visitors include the Brooks Camp area, Ukak Falls, the Valley of Ten Thousand Smokes, Hallo Bay, and Kaguyak Point. Fieldwork was conducted during the summer of 2021 to explore Katmai for new vertebrate fossil localities (?Kamishak Bay Reconnaissance? section of this report). The current extent of vertebrate fossils within Katmai is limited to a single heavily worn bone chunk that was found in the vicinity of Ukak Falls. Vertebrate fossils have been uncovered south of the park near Becharof Lake and near Chignik Bay in the Indecision Creek Member of the Naknek Formation. To search for vertebrate fossils, exposures of the Indecision Creek Member of the Naknek Formation were surveyed along the coast of Kamishak Bay. Bluffs and outcrops were examined for fossils and evidence supporting the existence of vertebrate trackways or remains. The study determined that exposures of the Indecision Creek Member along Kamishak Bay are unlikely to contain vertebrate fossils. This portion of the member contained marine fossils and driftwood, indicating deposition in a marine environment, and the rock outcrops fractured perpendicularly to the bedding plane, limiting the potential for preserving fossil trackways. Future exploration for vertebrate fossils in Katmai could target Mt Katolinat and Ukak Falls.
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Salcido, Charles, Patrick Wilson, Justin Tweet, Blake McCan, Clint Boyd, and Vincent Santucci. Theodore Roosevelt National Park: Paleontological resource inventory (public version). National Park Service, 2022. http://dx.doi.org/10.36967/nrr-2293509.
Full textAbstract:
Theodore Roosevelt National Park (THRO) in western North Dakota was established for its historical connections with President Theodore Roosevelt. It contains not only historical and cultural resources, but abundant natural resources as well. Among these is one of the best geological and paleontological records of the Paleocene Epoch (66 to 56 million years ago) of any park in the National Park System. The Paleocene Epoch is of great scientific interest due to the great mass extinction that occurred at its opening (the Cretaceous–Paleogene extinction event), and the unusual climatic event that began at the end of the epoch (the Paleocene–Eocene Thermal Maximum, an anomalous global temperature spike). It is during the Paleocene that mammals began to diversify and move into the large-bodied niches vacated by dinosaurs. The rocks exposed at THRO preserve the latter part of the Paleocene, when mammals were proliferating and crocodiles were the largest predators. Western North Dakota was warmer and wetter with swampy forests; today these are preserved as the “petrified forests” that are one of THRO’s notable features. Despite abundant fossil resources, THRO has not historically been a scene of significant paleontological exploration. For example, the fossil forests have only had one published scientific description, and that report focused on the associated paleosols (“fossil soils”). The widespread petrified wood of the area has been known since at least the 19th century and was considered significant enough to be a tourist draw in the decades leading up to the establishment of THRO in 1947. Paleontologists occasionally collected and described fossil specimens from the park over the next few decades, but the true extent of paleontological resources was not realized until a joint North Dakota Geological Survey–NPS investigation under John Hoganson and Johnathan Campbell between 1994–1996. This survey uncovered 400 paleontological localities within the park representing a variety of plant, invertebrate, vertebrate, and trace fossils. Limited investigation and occasional collection of noteworthy specimens took place over the next two decades. In 2020, a new two-year initiative to further document the park’s paleontological resources began. This inventory, which was the basis for this report, identified another 158 fossil localities, some yielding taxa not recorded by the previous survey. Additional specimens were collected from the surface, among them a partial skeleton of a choristodere (an extinct aquatic reptile), dental material of two mammal taxa not previously recorded at THRO, and the first bird track found at the park. The inventory also provided an assessment of an area scheduled for ground-disturbing maintenance. This inventory is intended to inform future paleontological resource research, management, protection, and interpretation at THRO. THRO’s bedrock geology is dominated by two Paleocene rock formations: the Bullion Creek Formation and the overlying Sentinel Butte Formation of the Fort Union Group. Weathering of these formations has produced the distinctive banded badlands seen in THRO today. These two formations were deposited under very different conditions than the current conditions of western North Dakota. In the Paleocene, the region was warm and wet, with a landscape dominated by swamps, lakes, and rivers. Great forests now represented by petrified wood grew throughout the area. Freshwater mollusks, fish, amphibians (including giant salamanders), turtles, choristoderes, and crocodilians abounded in the ancient wetlands, while a variety of mammals representing either extinct lineages or the early forebearers of modern groups inhabited the land. There is little representation of the next 56 million years at THRO. The only evidence we have of events in the park for most of these millions of years is isolated Neogene lag deposits and terrace gravel. Quaternary surficial deposits have yielded a few fossils...