Relevant bibliographies by topics / Radiolaria, Fossil

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Radiolaria, Fossil'

Author: Grafiati
Published: 4 June 2021
Last updated: 30 January 2023

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Journal articles on the topic "Radiolaria, Fossil"

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Casey, Richard E. "Radiolaria." Notes for a Short Course: Studies in Geology 18 (1987): 213–47. http://dx.doi.org/10.1017/s027116480000155x.

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Radiolaria are marine holoplanktonic animal-like protists belonging to the Superclass Actinopodea of the Subphylum Sarcodina. When biologists speak of radiolarians they usually mean the subgroup Acantharia that are common in nearshore waters and are sometimes involved in plankton blooms. When paleontologists speak of radiolarians they usually mean the subgroups preserved in the fossil record; the Polycystina (or polycystine) encompassing Spumellaria and Nassellaria, which possess solid opaline skeletal structures, and the Phaeodaria (or phaeodarians), which possess hollow skeletal structures of an admixture of silica and organic matter.
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Zhang, Lei, Taniel Danelian, Qinglai Feng, Thomas Servais, Nicolas Tribovillard, and Martial Caridroit. "On the Lower Cambrian biotic and geochemical record of the Hetang Formation (Yangtze Platform, south China): evidence for biogenic silica and possible presence of Radiolaria." Journal of Micropalaeontology 32, no. 2 (July 1, 2013): 207–17. http://dx.doi.org/10.1144/jmpaleo2013-003.

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Abstract. Research on Lower Cambrian siliceous sedimentary rocks is important for understanding the origin and early involvement of polycystine Radiolaria in the silica cycle. During our study, thin sections and HF acid processing of black cherts and shales from the Hetang Formation that crops out in the Xintangwu section (west Zhejiang Province, south China) were made. We report on the presence of siliceous spherical microfossils (possibly Radiolaria) associated with sponge spicules and acritarchs. Their size and the presence of residual spines on some spherical siliceous microfossils observed in both residues and thin sections of cherts from the top of Member ‘a’ of the Hetang Formation argue for the possible presence of radiolarians. Based on the Small Shelly Fossil assemblages reported in previous studies, this interval should be considered as Qiongzhusian (Atdabanian–Early Botomian) in age. Finally, the values of the Ge/Si ratio measured on black cherts of the Hetang Formation point to a biogenic origin of the silica.
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Stanek, J., and W. Kiessling. "Sectioning of radiolarians under continuous observation." Fossil Record 5, no. 1 (January 1, 2002): 45–49. http://dx.doi.org/10.5194/fr-5-45-2002.

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A new method to study the internal structure of fossil radiolarians in presented. The core of the method is (1) freezing the radiolarian in a drop of water using a Peltier module and (2) slicing the radiolarian with a specially equipped electric tooth-brush under an optical microscope. With this method the internal structure of diagenetically altered radiolarians can be studied even if internal sediment cannot be removed. <br><br> Eine neue Methode zur Analyse der Internstrukturen von Radiolarien wird vorgestellt. Die Methode beinhaltet (1) Einfrieren einzelner Radiolarien in einem Wassertropfen mit Hilfe eine Peltier-Elements und (2) Schleifen der Radiolarien mit Hilfe eine modifizierten elektrischen Zahnbürste unter einem Binokular. Mit dieser Methode ist es möglich Internstrukturen von Radiolarien zu untersuchen, selbst wenn diese diagenetisch verändert sind oder fest verbackenes Internsediment aufweisen. <br><br> doi:<a href="http://dx.doi.org/10.1002/mmng.20020050104" target="_blank">10.1002/mmng.20020050104</a>
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Izumi, Kentaro, and Kazuko Yoshizawa. "Star-shaped trace fossil and Phymatoderma from Neogene deep-sea deposits in central Japan: probable echiuran feeding and fecal traces." Journal of Paleontology 90, no. 6 (October 11, 2016): 1169–80. http://dx.doi.org/10.1017/jpa.2016.95.

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AbstractA co-occurrence of the ichnogenus Phymatoderma and a star-shaped horizontal trace fossil was discovered from Neogene deep-marine deposits (Misaki Formation, central Japan), and is described herein for the first time. Phymatoderma consists of a straight to slightly curved tunnel that shows first- or second-order branches. The tunnels are 5.30–27.25 mm in diameter and are filled with ellipsoidal pellets. The relatively well-preserved star-shaped trace fossil is a large horizontal structure (~18 cm×19 cm) that consists of at least 10 spokes with diameters ranging from 11.49–20.96 mm. As compared to modern analogous surface-feeding traces produced by abyssal echiuran worms and their burrow morphology, it is highly likely that the star-shaped trace fossil and Phymatoderma found from the Misaki Formation are feeding and fecal traces of ancient deep-sea echiurans, respectively. Difference in preservation potential between surface and subsurface traces may result in rare occurrence of star-shaped trace fossils as compared to Phymatoderma. Microscopic observation of the pelletal infill of Phymatoderma also reveals that the trace-maker fed on organic debris and microorganisms such as diatoms and radiolaria.
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Streiker, Scott, and Rachel Smith. "The NEST Laboratory: The Art of a Multi-User Facility." Microscopy Today 14, no. 6 (November 2006): 52–55. http://dx.doi.org/10.1017/s1551929500058909.

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Radiolaria are marine protozoa that have thrived in the world's oceans for millions of years. They are particularly unique among marine plankton in that they build silica skeletons, which have allowed them to be preserved in the fossil record. These skeletons are ornate and complex and often demonstrate perfect geometric form and symmetry. The complex and beautiful glass-like structures are visually interesting when examined with electron microscopy. These attributes, coupled with their availability, size, ease of mounting and preparation make them superb specimens for introducing students to the use of electron microscopy (EM).
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O'Connor, Barry. "Confocal Laser Scanning Microscopy: A New Technique for Investigating and Illustrating Fossil Radiolaria." Micropaleontology 42, no. 4 (1996): 395. http://dx.doi.org/10.2307/1485963.

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7

TRUBOVITZ, SARAH, JOHAN RENAUDIE, DAVID LAZARUS, and PAULA NOBLE. "Late Neogene Lophophaenidae (Nassellaria, Radiolaria) from the eastern equatorial Pacific." Zootaxa 5160, no. 1 (July 4, 2022): 1–158. http://dx.doi.org/10.11646/zootaxa.5160.1.1.

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Lophophaenidae is a clade of polycystine radiolarians that was highly abundant and diverse in the Late Neogene–Recent eastern equatorial Pacific (EEP). Despite their importance in fossil plankton assemblages, lophophaenids have been neglected because of their generally small size, complex morphology, and weak taxonomic framework. These challenges have left many lophophaenid concepts poorly defined or lacking formal description. Here we address this with a review of 101 lophophaenid taxa observed in EEP Middle Miocene–Recent marine sediments. We discuss existing lophophaenid genera Amphiplecta Haeckel 1881, Arachnocorallium Haeckel 1887, Arachnocorys Haeckel 1860, Botryopera Haeckel 1887, Ceratocyrtis Bütschli 1882, Lithomelissa Ehrenberg 1847, Lophophaena Ehrenberg 1847, and Peromelissa Haeckel 1881, including full species lists. We describe Pelagomanes n. gen., 23 new species: ​​Amphiplecta kikimorae n. sp., Arachnocorys jorogumoae n. sp., Botryopera amabie n. sp., Botryopera babayagae n. sp., Botryopera bolotniki n. sp., Ceratocyrtis? chimii n. sp., Ceratocyrtis vila n. sp., Lithomelissa alkonost n. sp., Lithomelissa babai n. sp., Lithomelissa dybbuki n. sp., Lithomelissa sirin n. sp., Lophophaena arie n. sp., Lophophaena casperi n. sp., Lophophaena domovoi n. sp., Lophophaena gozui n. sp., Lophophaena ikiryo n. sp., Lophophaena ikota n. sp., Lophophaena kaonashii n. sp., Lophophaena leshii n. sp., Lophophaena rusalkae n. sp., Lophophaena shishigae n. sp., Lophophaena ushionii n. sp., and Pelagomanes ibburi n. sp., and one new subspecies, Arachnocorys pentacantha wanii n. subsp. In addition, we document 35 taxa in open nomenclature, and revise generic assignments of 10 species. The names of 32 previously-described species are upheld, but with clarified synonymies, discussion, and illustrations. This work contributes a practical framework for identifying tropical Late Neogene–Recent lophophaenid taxa, and demonstrates their rich morphological diversity.
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Smits, Peter, and Seth Finnegan. "How predictable is extinction? Forecasting species survival at million-year timescales." Philosophical Transactions of the Royal Society B: Biological Sciences 374, no. 1788 (November 4, 2019): 20190392. http://dx.doi.org/10.1098/rstb.2019.0392.

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A tenet of conservation palaeobiology is that knowledge of past extinction patterns can help us to better predict future extinctions. Although the future is unobservable, we can test the strength of this proposition by asking how well models conditioned on past observations would have predicted subsequent extinction events at different points in the geological past. To answer this question, we analyse the well-sampled fossil record of Cenozoic planktonic microfossil taxa (Foramanifera, Radiolaria, diatoms and calcareous nanoplankton). We examine how extinction probability varies over time as a function of species age, time of observation, current geographical range, change in geographical range, climate state and change in climate state. Our models have a 70–80% probability of correctly forecasting the rank order of extinction risk for a random out-of-sample species pair, implying that determinants of extinction risk have varied only modestly through time. We find that models which include either historical covariates or account for variation in covariate effects over time yield equivalent forecasts, but a model including both is overfit and yields biased forecasts. An important caveat is that human impacts may substantially disrupt range-risk dynamics so that the future will be less predictable than it has been in the past. This article is part of a discussion meeting issue ‘The past is a foreign country: how much can the fossil record actually inform conservation?’
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Zeiss, Arnold. "The Upper Jurassic of Europe: its subdivision and correlation." Geological Survey of Denmark and Greenland (GEUS) Bulletin 1 (October 28, 2003): 75–114. http://dx.doi.org/10.34194/geusb.v1.4649.

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In the last 40 years, the stratigraphy of the Upper Jurassic of Europe has received much attention and considerable revision; much of the impetus behind this endeavour has stemmed from the work of the International Subcommission on Jurassic Stratigraphy. The Upper Jurassic Series consists of three stages, the Oxfordian, Kimmeridgian and Tithonian which are further subdivided into substages, zones and subzones, primarily on the basis of ammonites. Regional variations between the Mediterranean, Submediterranean and Subboreal provinces are discussed and correlation possibilities indicated. The durations of the Oxfordian, Kimmeridgian and Tithonian Stages are reported to have been 5.3, 3.4 and 6.5 Ma, respectively. This review of the present status of Upper Jurassic stratigraphy aids identification of a number of problems of subdivision and definition of Upper Jurassic stages; in particular these include correlation of the base of the Kimmeridgian and the top of the Tithonian between Submediterranean and Subboreal Europe. Although still primarily based on ammonite stratigraphy, subdivision of the Upper Jurassic is increasingly being refined by the incorporation of other fossil groups; these include both megafossils, such as aptychi, belemnites, bivalves, gastropods, brachiopods, echinoderms, corals, sponges and vertebrates, and microfossils such as foraminifera, radiolaria, ciliata, ostracodes, dinoflagellates, calcareous nannofossils, charophyaceae, dasycladaceae, spores and pollen. Important future developments will depend on the detailed integration of these disparate biostratigraphic data and their precise combination with the abundant new data from sequence stratigraphy, utilising the high degree of stratigraphic resolution offered by certain groups of fossils. This article also contains some notes on the recent results of magnetostratigraphy and sequence chronostratigraphy.
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Lazarus, Dave. "Morphometric studies of radiolarian evolution." Paleontological Society Special Publications 6 (1992): 178. http://dx.doi.org/10.1017/s2475262200007383.

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Radiolarians are the most diverse of the 4 major fossil forming plankton groups, with several hundred living species, and an equally diverse range of biologic specializations for planktonic existence. Studies of radiolarian evolution are mostly from the Cenozoic, where the opaline silica skeletons of radiolarians are well preserved in most areas of the world's oceans. Cenozoic radiolarian skeletons are mostly too small (50-150 μm) and delicate to easily manipulate individually. Washed sieved skeletons are strewn at random orientations onto glass microslides and viewed in transmitted light. At the required magnifications, most skeletons cannot be viewed in their entirety within a single focus-plane. Many (perhaps the majority) of taxonomic characters in radiolarians are not visible in the skeleton outline, but are internal. These characteristics make normal image analysis techniques more difficult to employ. Computer assisted manual digitizers (one version working in 3 dimensions) have sometimes been used to measure skeletons. Distance, angle, area, and shape outline measurements have all been used to quantify radiolarian morphology.Radiolarian skeletal growth is determinate, and relatively little ontogenetic or within-population allometric variation is seen. Geographic variation in radiolarian species morphology is common, but little studied. Perhaps due to the effort involved, most ordinary taxonomic work does not employ morphometric data: its use has largely been in species-level evolutionary studies. Phyletic trends in size, shape, and in other characters have long been used to delineate stratigraphically useful chronospecies, and some of these anagenetic series have been morphometrically measured. Cladogenesis has also been morphometrically quantified in a few cases. Most studies of both cladogenesis and anagenetic evolution have documented gradual rates of morphologic change.Integrated studies of paleogeographic variation and temporal change are still needed, as is better information on modern radiolarian biology. Much more efficient measurement tools are also needed, to handle the very large number of specimens required by integrated studies.
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Dissertations / Theses on the topic "Radiolaria, Fossil"

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Marquez, Edanjarlo Joson. "Longitudinal distribution of radiolarians within Tethys." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B31245845.

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Maldonado, Amy L. "Taxonomy and biostratigraphy of upper Guadalupian radiolaria from the reef trail member of the Bell Canyon formation, Guadalupe Mountains National Park, West Texas, USA /." abstract and full text PDF (UNR users only), 2008. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1459467.

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Thesis (M.S.)--University of Nevada, Reno, 2008.
"August, 2008." Includes bibliographical references (leaves 142-149). Library also has microfilm. Ann Arbor, Mich. : ProQuest Information and Learning Company, [2008]. 1 microfilm reel ; 35 mm. Online version available on the World Wide Web.
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Carter, Elizabeth Sibbald. "Early and middle Jurassic Radiolarian biostratigraphy, Queen Charlotte Islands, B.C." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/24586.

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Radiolarian biostratigraphy is used to construct an informal zonation for sediments of upper Pliensbachian to lower Bajocian age from the Maude and Yakoun Formations, Queen Charlotte Islands, B.C. Paleoenvironmental studies assess depositional environment and the effects of changing facies relationships on the fauna. Seven distinctive assemblages are recognized comprising 167 species of spumellarian and nassellarian Radiolaria. The first well established middle Toarcian radiolarian assemblages are documented and both these and upper Toarcian assemblages are highly diverse and contain many new and unusual forms. Five genera and 89 new species are described many of which have restricted biostratigraphic ranges. A chlorophyte algal cyst appearing in all lowest Bajocian samples may, with further study, prove to be a significant marker for the lower Bajocian in the Queen Charlotte Islands. Although Toarcian Radiolaria have been little studied, the assemblages compare with others from North America, the Mediterranean and Japan, and are distinctly Tethyan in aspect. This is consistent with the position of Wrangellia, which paleomagnetic and ammonite biogeographic evidence indicates was in the northern hemisphere within 30° of the equator during the Early to Middle Jurassic. Studies of the abundance of spumellarians vs. nassellarians indicate thatnassellarians predominate, are abundant and diverse in deeper-water deposits (middle Toarcian and lower Bajocian shales) whereas spume Marians, particularly those with multi-layered or spongy tests, dominate in shallow-water deposits (upper middle Toarcian to Aalenian sandstones). Shallow-water nassellarians are much less diverse but a few species (all multicyrtids with thickened tests) are very abundant. Depth appears to be the major factor controlling radiolarian distribution patterns in this relatively shallow-water setting. Studies of eustatic sea-level changes throughout the Jurassic have indicated that major phases of sea-level rise occurred in the early to mid Toarcian and in the early Bajocian with a major phase of sea-level lowering in the late Toarcian to Aalenian; detailed study of the radiolarian faunal succession in the Queen Charlotte Islands appears to confirm this major worldwide trend.
Science, Faculty of
Earth, Ocean and Atmospheric Sciences, Department of
Graduate
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Pálfy, József. "Uppermost Hettangian to lowermost Pliensbachian (Lower Jurassic) biostratigraphy and ammonoid fauna of the Queen Charlotte Islands, British Columbia." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30266.

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Extensive fossil collections from the upper part of the Sandilands and the lowermost Ghost Creek Formations allowed a detailed taxonomic study of the latest Hettangian to earliest Phensbachian ammonoid fauna of the Queen Charlotte Islands. 61 taxa, allocated to 27 genera, are described. Sunrisites senihlevis, Plesechioceras yakounense, Tetraspidoceras pacificum and Tetraspidoceras recognitum are introduced as new species. The vertical distribution of ammonites, documented in measured sections, serves as a basis to distinguish six successive assemblage zones: the Canadensis Zone, "Coromceras" Zone, Arnouldi Zone, Varians Zone, Harbledownense Zone, and Recognitum Zone. Of these only the Canadensis Zone was established earlier, the remaining five are defined here for the first time. This zonation permits high-resolution correlation of the sections. The total thickness of uppermost Hettangian to lowermost Pliensbachian strata in sections on Kunga Island is estimated at 385 m. A comparison of selected zones in different sections shows a subtle thickness increase to the south. The contact of the Sandilands Formation and the overlying Ghost Creek Formation is diachronous, younging gradually to the south. The faunal succession in the Queen Charlotte Islands agrees well with that of the Taseko Lakes area and Nevada, promising regional applicability of the proposed zones. Intercontinental correlation with the northwest European standard zonation is possible at diffrent levels. The Hettangian/Sinemurian boundary is contained within the Canadensis Zone. It is best approximated by the first appearance of Badouxia columbiae and Metophioceras spp. The position of the Recognitum Zone at the Sinemurian/Pliensbachian boundary remains problematic; most evidence on hand points to its Pliensbachian affinities. The ammonite fauna consists of taxa with pandemic, Tethyan, Athabascan, East Pacific, and Pacific distribution. Provincialism was not prominent but existed during the Sinemurian time. The high proportion of Tethyan forms is in accord with the theory suggesting a more southerly original paleolatitude for Wrangellia. The distribution of Tethyan forms can be explained by the early opening of the Hispanic Corridor, proven to be in existence by the Pliensbachian. Alternatively, the pantropic distribution model cannot be ruled out, although the faunal record from the eastern Tethys is inadequate to prove it. Thestrong representation of Athabascan and East Pacific elements renders long-distance longitudinal tectonic dislocation of Wrangellia unlikely. The paleoecology and taphonomy of ammonites, associated macrofauna, and trace fossils is used for paleoenvironmental reconstruction. The general lack of bioturbation, predominance of thin-shelled, presumably pseudo-planktonic bivalves, and the intact preservation of fish and a crinoid specimen indicate prevailing oxygen deficient bottom conditions. Trace fossils provide evidence for periodic improvements of bottom oxygenation. Different modes of ammonite preservation are controlled by shell morphology as well as the varying sedimentation rate and diagenetic regime. The latter reflects changes in redox conditions in the upper sediment layers.
Science, Faculty of
Earth, Ocean and Atmospheric Sciences, Department of
Graduate
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Baxter, Alan Thomas. "Applied radiolarian biostratigraphy and detrital mineral analysis of Mesotethyan and Neotethyan sediments from India and Tibet." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45587048.

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Tomescu, Iulia. "The Ordovician : a window toward understanding abundance and migration patterns of biogenic chert and implications for paleoclimate /." Ohio University / OhioLINK, 2004. http://www.ohiolink.edu/etd/view.cgi?ohiou1103302033.

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Niwa, Kohsuke, and Kazuhiro Tsukada. "Jurassic radiolarian fossils from the Miyakoda Formation in the Lake Hamana area, Shizuoka Prefecture, central Japan." Dept. of Earth and Planetary Sciences, Nagoya University, 2004. http://hdl.handle.net/2237/7638.

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TANAKA, Tsuyoshi, Hidekazu YOSHIDA, Toshio NAKAMURA, Takeshi SAIT0, Mitsuo HOSHIN0, Kazuhiro TSUKADA, Makoto SAIT0, Yusuke KATSURADA, and Manchuk NURAMKHAAN. "Radiolarian fossils from Quaternary gravel beds along the River Euphrates in Ar-Raqqa, Syria: A preliminary report." Dept. of Earth and Planetary Sciences, Nagoya University, 2010. http://hdl.handle.net/2237/14732.

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Tokiwa, Tetsuya, Yoshinori Mori, and Hiroyuki Suzuki. "Cretaceous radiolarian fossils from the Ryujin Formation of the Shimanto Belt in the Kawabe area, Wakayama Prefecture, southwest Japan." Dept. of Earth and Planetary Sciences, Nagoya University, 2005. http://hdl.handle.net/2237/7648.

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Wonganan, Nutthawut. "Radiolaires et radiolarites de Thai͏̈lande du nord : paléontologie; implications tectoniques et paléogéographiques." Lille 1, 2005. http://www.theses.fr/2005LIL10001.

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La géologie de la Thai͏̈lande pré-jurassique est faite d'un assemblage complexe de terrains continentaux à océaniques distaux, de fragments de continents et d'arcs, de prismes d'accrétion et de zone(s) de suture. La reconstitution de son histoire est fondamentale pour comprendre. L'évolution de la Paléotéthys et les structures induites par une ou des collisions. A cause des conditions d'affleurement difficiles et d'un nombre restreint de datations directes, cette géologie est encore mal connue et sujette à controverse. Le présent travail a été focalisé sur l'étude des radiolarites, et des radiolaires qu'elles contiennent, qui affleurent en Thai͏̈lande du Nord. Quarante coupes ont été étudiées et sont décrites après un aperçu de la géologie régionale (chap. 2). La taxonomie des faunes de radiolaires obtenues (Dévonien moyen à Trias supérieur) est présentée (chap. 3) et est suivie par la proposition d'une échelle biostratigraphique régionale dont la précision atteint le demi-étage (chap. 4); plusieurs espèces sont nouvelles. L'évolution de la biodiversité ainsi que des comparaisons d'assemblages sont décrites; ces dernières permettent quelques hypothèses en termes de paléobiogéographie (chap. 5). Les datations obtenues, les données de terrain et une bibliographie récente permettent de proposer une nouvelle division tectonostratigraphique de la Thai͏̈lande du Nord (chap. 6) puis d'établir un nouveau modèle d'évolution géodynamique qui tente de prendre en compte toutes les nouvelles données (chap. 7). L'ensemble de ce travail démontre l'importance primordiale des datations des roches sédimentaires, et plus particulièrement des dépôts océaniques distaux que sont les radiolarites, et ouvre de nombreuses perspectives de recherche pour tester les modèles et mieux comprendre la structuration complexe de la Thai͏̈lande (chap. 8).
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Books on the topic "Radiolaria, Fossil"

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Chʻeng, Yen-nien. Taxonomic studies on upper Paleozoic radiolaria: = Shangbu gushengdai fangshechong fenlei yanjiu. Taichung, Taiwan: Han Pao-Teh, 1986.

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Hull, Donna Meyerhoff. Upper Jurassic Tethyan and southern Boreal radiolarians from western North America. New York, N.Y: Micropaleontology Press, 1997.

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Brathauer, Uta. Rekonstruktion quartärer Klimaänderungen im atlantischen Sektor des Südpolarmeeres anhand von Radiolarien =: Radiolarians as indicators for Quaternary climatic changes in the Southern Ocean (Atlantic sector). Bremerhaven: Alfred-Wegener-Institut für Polar- und Meeresforschung, 1996.

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Noble, Paula J. Silurian radiolarian zonation for the Caballos Novaculite, Marathon uplift, west Texas. Ithaca, N.Y: Paleontological Research Institution, 1994.

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Carter, Elizabeth S. Biochronology and paleontology of Lower Jurassic (Hettangian and Sinemurian) Radiolarians, Queen Charlotte Islands, British Columbia. Ottawa: Geological Survey of Canada, 1998.

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Pessagno, Emile A. Jurassic Nassellariina (Radiolaria) from North American geologic terranes. Ithaca, N.Y: Paleontological Research Institution, 1986.

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Afanasʹeva, M. S. Radioli︠a︡rii. Moskva: Paleontologicheskiĭ in-t RAN, 2006.

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Zhiyuan, Tan, ed. Nan Hai zhong, bei bu chen ji wu zhong de fang she chong. Beijing: Ke xue chu ban she, 1996.

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Radioli͡arievyĭ analiz. Leningrad: Izd-vo "Nauka," Leningradskoe otd-nie, 1986.

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Muhong, Chen, ed. Zhongguo jin hai de fang she chong. Beijing: Ke xue chu ban she, 1999.

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Book chapters on the topic "Radiolaria, Fossil"

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Casey, Richard E., Amy L. Weinheimer, and Carl O. Nelson. "California El NiñOs and Related Changes of the California Current System from Recent And Fossil Radiolarian Records." In Aspects of Climate Variability in the Pacific and the Western Americas, 85–92. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm055p0085.

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Dumoulin, Julie A., Katherine J. Whidden, William A. Rouse, Richard O. Lease, Adam Boehlke, and Paul O’Sullivan. "Biosiliceous, organic-rich, and phosphatic facies of Triassic strata of northwest Alaska: Transect across a high-latitude, low-angle continental margin." In Understanding the Monterey Formation and Similar Biosiliceous Units across Space and Time. Geological Society of America, 2022. http://dx.doi.org/10.1130/2022.2556(11).

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ABSTRACT The Shublik Formation (Middle and Upper Triassic) is a mixed siliciclastic-carbonate-phosphatic unit in northern Alaska. It generated oil found in Prudhoe Bay and other accumulations and is a prospective self-sourced resource play on Alaska’s North Slope. Its distal, deeper-water equivalent—the Otuk Formation—consists largely of radiolarian chert, mudstone, and limestone and contains potential gas accumulations in the Brooks Range foothills to the south. New petrographic, fossil, geochemical, spectral gamma-ray, and zircon U-Pb data yield insights into facies changes in these units, which were deposited across a shallowly dipping shelf margin in a high-latitude setting. Samples come from four localities along a transect that extends ~410 km from present-day northeast (proximal) to southwest (distal) in northwest Alaska. Proximal Shublik facies (Brontosaurus 1 well) contain abundant siliciclastic detritus and local phosphate. Shublik-Otuk transitional facies occur in the probable onshore extension of the Hanna Trough (Surprise Creek); new zircon U-Pb data indicate an early Norian age for a bentonite bed in this section. Distal Otuk facies (Red Dog district, Cape Lisburne) are fine grained, biosiliceous, and organic rich. New detrital zircon U-Pb data from a distinctive sandstone member in the Otuk Formation at Cape Lisburne reinforce previous interpretations of a provenance to the present-day northwest and indicate a protracted history of Triassic magmatism for this source area. Triassic facies patterns in northwestern Alaska were shaped by sea-level change, climate, and regional tectonism. Organic-rich facies developed best at times (Ladinian–middle Norian) and/or in settings (distal shelf, Hanna Trough) with minimal dilution of organic matter by other detritus.
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3

Miller, Elizabeth L., Mark E. Raftrey, and Jens-Erik Lund Snee. "Downhill from Austin and Ely to Las Vegas: U-Pb detrital zircon suites from the Eocene–Oligocene Titus Canyon Formation and associated strata, Death Valley, California." In Tectonic Evolution of the Sevier-Laramide Hinterland, Thrust Belt, and Foreland, and Postorogenic Slab Rollback (180–20 Ma). Geological Society of America, 2022. http://dx.doi.org/10.1130/2021.2555(14).

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ABSTRACT In a reconnaissance investigation aimed at interrogating the changing topography and paleogeography of the western United States prior to Basin and Range faulting, a preliminary study made use of U-Pb ages of detrital zircon suites from 16 samples from the Eocene–Oligocene Titus Canyon Formation, its overlying units, and correlatives near Death Valley. The Titus Canyon Formation unconformably overlies Neoproterozoic to Devonian strata in the Funeral and Grapevine Mountains of California and Nevada. Samples were collected from (1) the type area in Titus Canyon, (2) the headwaters of Monarch Canyon, and (3) unnamed Cenozoic strata exposed in a klippe of the Boundary Canyon fault in the central Funeral Mountains. Red beds and conglomerates at the base of the Titus Canyon Formation at locations 1 and 2, which contain previously reported 38–37 Ma fossils, yielded mostly Sierran batholith–age detrital zircons (defined by Triassic, Jurassic, and Cretaceous peaks). Overlying channelized fluvial sandstones, conglomerates, and minor lacustrine shale, marl, and limestone record an abrupt change in source region around 38–36 Ma or slightly later, from more local, Sierran arc–derived sediment to extraregional sources to the north. Clasts of red radiolarian-bearing chert, dark radiolarian chert, and quartzite indicate sources in the region of the Golconda and Roberts Mountains allochthons of northern Nevada. Sandstones intercalated with conglomerate contain increasing proportions of Cenozoic zircon sourced from south-migrating, caldera-forming eruptions at the latitude of Austin and Ely in Nevada with maximum depositional ages (MDAs) ranging from 36 to 24 Ma at the top of the Titus Canyon Formation. Carbonate clasts and ash-rich horizons become more prevalent in the overlying conglomeratic Panuga Formation (which contains a previously dated 15.7 Ma ash-flow tuff). The base of the higher, ash-dominated Wahguyhe Formation yielded a MDA of 14.4 Ma. The central Funeral Mountains section exposes a different sequence of units that, based on new data, are correlative to the Titus Canyon, Panuga, and Wahguyhe Formations at locations 1 and 2. An ash-flow tuff above its (unexposed) base provided a MDA of 34 Ma, and the youngest sample yielded a MDA of 12.7 Ma. The striking differences between age-correlative sections, together with map-based evidence for channelization, indicate that the Titus Canyon Formation and overlying units likely represent fluvial channel, floodplain, and lacustrine deposits as sediments mostly bypassed the region, moving south toward the Paleogene shoreline in the Mojave Desert. The profound changes in source regions and sedimentary facies documented in the Titus Canyon Formation took place during ignimbrite flareup magmatism and a proposed eastward shift of the continental divide from the axis of the Cretaceous arc to a new divide in central Nevada in response to thermal uplift and addition of magma to the crust. This uplift initiated south-flowing fluvial systems that supplied sediments to the Titus Canyon Formation and higher units.
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Conference papers on the topic "Radiolaria, Fossil"

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Keceli, Ali Seydi, Seda Uzuncimen Keceli, and Aydin Kaya. "Classification of radiolarian fossil images with deep learning methods." In 2018 26th Signal Processing and Communications Applications Conference (SIU). IEEE, 2018. http://dx.doi.org/10.1109/siu.2018.8404460.

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