Se connecter

Bibliographies thématiques / Euxinie / Articles de revues

Pour voir les autres types de publications sur ce sujet consultez le lien suivant : Euxinie.

Articles de revues sur le sujet « Euxinie »

Auteur : Grafiati

Publié le 16 novembre 2024

Mis à jour le 31 juillet 2025

Créez une référence correcte selon les styles APA, MLA, Chicago, Harvard et plusieurs autres

Choisissez une source :

Consultez les 50 meilleurs articles de revues pour votre recherche sur le sujet « Euxinie ».

À côté de chaque source dans la liste de références il y a un bouton « Ajouter à la bibliographie ». Cliquez sur ce bouton, et nous générerons automatiquement la référence bibliographique pour la source choisie selon votre style de citation préféré : APA, MLA, Harvard, Vancouver, Chicago, etc.

Vous pouvez aussi télécharger le texte intégral de la publication scolaire au format pdf et consulter son résumé en ligne lorsque ces informations sont inclues dans les métadonnées.

Parcourez les articles de revues sur diverses disciplines et organisez correctement votre bibliographie.

1

Grice, K., R. E. Summons, E. Grosjean, et al. "DEPOSITIONAL CONDITIONS OF THE NORTHERN ONSHORE PERTH BASIN (BASAL TRIASSIC)." APPEA Journal 45, no. 1 (2005): 262. http://dx.doi.org/10.1071/aj04023.

Texte intégral

Résumé :

An oil-source rock correlation has been established for the northern onshore Perth Basin (Western Australia) based on unusual aromatic and polar biomarkers attributed ultimately to a green sulphur bacterial source. Several of these biomarkers have been identified throughout the entire Sapropelic Interval of a proven petroleum source rock intersected within a recently discovered marine Permian- Triassic Perth Basin borehole (Hovea–3) and several Perth Basin crude oils. Today, green sulphur bacteria live in the anaerobic zones of stratified lakes or in marine environments with restricted water c

Styles APA, Harvard, Vancouver, ISO, etc.

2

WIGNALL, PAUL B., DAVID P. G. BOND, YADONG SUN, et al. "Ultra-shallow-marine anoxia in an Early Triassic shallow-marine clastic ramp (Spitsbergen) and the suppression of benthic radiation." Geological Magazine 153, no. 2 (2015): 316–31. http://dx.doi.org/10.1017/s0016756815000588.

Texte intégral

Résumé :

AbstractLower Triassic marine strata in Spitsbergen accumulated on a mid-to-high latitude ramp in which high-energy foreshore and shoreface facies passed offshore into sheet sandstones of probable hyperpycnite origin. More distal facies include siltstones, shales and dolomitic limestones. Carbon isotope chemostratigraphy comparison allows improved age dating of the Boreal sections and shows a significant hiatus in the upper Spathian. Two major deepening events, in earliest Griesbachian and late Smithian time, are separated by shallowing-upwards trends that culminated in the Dienerian and Spath

Styles APA, Harvard, Vancouver, ISO, etc.

3

Hutchings, Alec M., and Alexandra V. Turchyn. "A quantification of the effect of diagenesis on the paleoredox record in mid-Proterozoic sedimentary rocks." Geology 49, no. 9 (2021): 1143–47. http://dx.doi.org/10.1130/g48774.1.

Texte intégral

Résumé :

Abstract Iron speciation in ancient sedimentary rocks is widely used to reconstruct oceanic redox conditions over geological time, specifically to assess the extent of oxic, euxinic (anoxic containing sulfide), and ferruginous (anoxic containing iron) conditions. We explore how post-depositional sedimentary processes can skew particular geochemical signals in the rock record. One such process is when aqueous sulfide—including that produced in the sediment column—reacts with sedimentary iron, converting non-sulfide, highly reactive iron minerals to iron-sulfide minerals; this can lead to increa

Styles APA, Harvard, Vancouver, ISO, etc.

4

Mitchell, Ross N., Uwe Kirscher, Marcus Kunzmann, Yebo Liu, and Grant M. Cox. "Gulf of Nuna: Astrochronologic correlation of a Mesoproterozoic oceanic euxinic event." Geology 49, no. 1 (2020): 25–29. http://dx.doi.org/10.1130/g47587.1.

Texte intégral

Résumé :

Abstract The ca. 1.4 Ga Velkerri and Xiamaling Formations, in Australia and the north China craton, respectively, are both carbonaceous shale deposits that record a prominent euxinic interval and were intruded by ca. 1.3 Ga dolerite sills. These similarities raise the possibility that these two units correlate, which would suggest the occurrence of widespread euxinia, organic carbon burial, and source rock deposition. Paleomagnetic data are consistent with Australia and the north China craton being neighbors in the supercontinent Nuna and thus permit deposition in a single large basin, and the

Styles APA, Harvard, Vancouver, ISO, etc.

5

Klomp, Robin, Olga M. Żygadłowska, Mike S. M. Jetten, et al. "Dissolved Mn(III) is a key redox intermediate in sediments of a seasonally euxinic coastal basin." Biogeosciences 22, no. 3 (2025): 751–65. https://doi.org/10.5194/bg-22-751-2025.

Texte intégral

Résumé :

Abstract. Manganese (Mn) is an essential micronutrient and key redox intermediate in marine systems. The role of organically complexed dissolved Mn(III) (dMn(III)-L) as an electron acceptor and donor in marine environments is still incompletely understood. Here, we use geochemical depth profiles of solutes and solids for the sediment and overlying waters and a reactive transport model to reconstruct the seasonality in sedimentary dMn(III)-L dynamics and benthic Mn release in a eutrophic, seasonally euxinic coastal basin (Lake Grevelingen, the Netherlands). Our model results suggest that dMn(II

Styles APA, Harvard, Vancouver, ISO, etc.

6

Shopov, Vladimir, and Maria Stancheva. "Correlation of the zonal schemes in the Quaternary sediments of the Bulgarian Black Sea shelf according to molluscs and ostracods." Geologica Balcanica 24, no. 3 (1994): 77–82. http://dx.doi.org/10.52321/geolbalc.24.3.77.

Texte intégral

Résumé :

The Candona Ostracod Zone corresponds the Upper Chaudinian where the Dreissena rostriformis tschaudae Molluscan Zone is indicated. The Didacna crassa pontocaspia – Dreissena euxinica and Didacna crassa pontocaspia – Alba ovata Molluscan Concurrent-range-zones corresponding to the Cryptocyprideis bogatschovi Ostracod Zone are interpreted respectively in the Middle Pleistocene, Old Euxinian and Uzunlarian Stages. The section of the Upper Pleistocenian (Karangatian) molluscan zones has not been presented for analysis of the Ostracod sequences. The sequence of the molluscan and ostracod zones in t

Styles APA, Harvard, Vancouver, ISO, etc.

7

JIN, CHENGSHENG, CHAO LI, THOMAS J. ALGEO, et al. "Evidence for marine redox control on spatial colonization of early animals during Cambrian Age 3 (c. 521–514 Ma) in South China." Geological Magazine 154, no. 6 (2016): 1360–70. http://dx.doi.org/10.1017/s0016756816001138.

Texte intégral

Résumé :

AbstractThe early Cambrian Period was a key interval in Earth history with regard to changes in both ocean chemistry and animal evolution. Although increasing ocean ventilation has been widely assumed to have played a key role in the rapid appearance, diversification and spatial colonization of early animals, this relationship is in fact not firmly established. Here, we report a high-resolution Fe-C-S-Al-Ti geochemical study of the lower Cambrian Wangjiaping section from an outer-shelf setting of the Yangtze Sea of South China. Iron speciation data document a redox transition from dominantly e

Styles APA, Harvard, Vancouver, ISO, etc.

8

Wendt, Anna K., Mike A. Arthur, Rudy Slingerland, Daniel Kohl, Reed Bracht, and Terry Engelder. "Geochemistry and depositional history of the Union Springs Member, Marcellus Formation in central Pennsylvania." Interpretation 3, no. 3 (2015): SV17—SV33. http://dx.doi.org/10.1190/int-2014-0228.1.

Texte intégral

Résumé :

Debate continues over paleoenvironmental conditions that prevail during deposition of organic-carbon (C)-rich marine source rocks in foreland basins and epicontinental seas. The focus of disagreement centers largely on paleowater depth and the prevalence of anoxia/euxinia. The issues of paleodepth and water column conditions are important for prediction of lateral variations in source quality within a basin because the viability of a hydrocarbon play depends on a thorough understanding of the distribution of source rock quality and depositional environments. We used inorganic geochemical data

Styles APA, Harvard, Vancouver, ISO, etc.

9

МЕРЕНКОВА, С. И., Г. А. КАЛМЫКОВ, А. Ю. ПУЗИК, et al. "GEOCHEMICAL FACETS OF THE INIKAN FORMATION AS INDICATORS OF STRATIFICATION AND HYDROCHEMISTRY OF THE CAMBRIAN PALEOBASIN." Геология и геофизика 65, no. 2 (2024): 265–87. http://dx.doi.org/10.15372/gig2023140.

Texte intégral

Résumé :

Выполнены геохимические исследования пород иниканской свиты из береговых обнажений р. Юдома. Для всех проанализированных литологических разностей характерно значительное обогащение B, Ni, Mo, Ag, Sb, U, т. е. редокс-чувствительными элементами, а также элементами, способными к биоосаждению. Источником элементов являлась морская вода, выщелачивающая их из эолового материала. Установлено, что отложения накапливались в аноксических условиях с периодами возникновения как эвксинных (по-видимому, в придонном слое), так и субоксических условий. Развитие таких аноксических и эвксинных условий вызвано у

Styles APA, Harvard, Vancouver, ISO, etc.

10

Rood, Tim. "Black Sea variations: Arrian's Periplus." Cambridge Classical Journal 57 (December 2011): 137–63. http://dx.doi.org/10.1017/s1750270500001305.

Texte intégral

Résumé :

Comme tous les Grecs, il n'a pas pu ne pas embellir ce qu'il a touché. On retrouve en lui cet éminent esprit d'une race privilégiée qui dans les sujets les plus arides fait pénétrer l'art et même la poésie. … même en quittant … le Périple d'Arrien, nous pouvons dire comme Fuséli en quittant les marbres du Parthénon: ‘Ah! les Grecs, les Grecs, c'étaient des dieux.’ H. Chotard, Le Périple de la Mer Noire par ArrienArrian's Periplus maris Euxini (Circumnavigation of the Euxine) is an ambitious and unusual work. Written in the 130s AD in the form of a letter to the emperor Hadrian, who had himself

Styles APA, Harvard, Vancouver, ISO, etc.

11

Grice, Kliti, Alex I. Holman, Chloe Plet, and Madison Tripp. "Fossilised Biomolecules and Biomarkers in Carbonate Concretions from Konservat-Lagerstätten." Minerals 9, no. 3 (2019): 158. http://dx.doi.org/10.3390/min9030158.

Texte intégral

Résumé :

In the vast majority of fossils, the organic matter is degraded with only an impression or cast of the organism remaining. In rare cases, ideal burial conditions result in a rapid fossilisation with an exceptional preservation of soft tissues and occasionally organic matter. Such deposits are known as Lagerstätten and have been found throughout the geological record. Exceptional preservation is often associated with finely crystalline quartz (e.g., cherts), fine sediments (e.g., muds) or volcanic ashes. Other mechanisms include burial in anoxic/euxinic sediments and in the absence of turbidity

Styles APA, Harvard, Vancouver, ISO, etc.

12

Gomes, Maya L., and David T. Johnston. "Oxygen and sulfur isotopes in sulfate in modern euxinic systems with implications for evaluating the extent of euxinia in ancient oceans." Geochimica et Cosmochimica Acta 205 (May 2017): 331–59. http://dx.doi.org/10.1016/j.gca.2017.02.020.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

13

Raiswell, R., and R. A. Berner. "Pyrite formation in euxinic and semi-euxinic sediments." American Journal of Science 285, no. 8 (1985): 710–24. http://dx.doi.org/10.2475/ajs.285.8.710.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

14

Zheng, Wang, Geoffrey J. Gilleaudeau, Linda C. Kah, and Ariel D. Anbar. "Mercury isotope signatures record photic zone euxinia in the Mesoproterozoic ocean." Proceedings of the National Academy of Sciences 115, no. 42 (2018): 10594–99. http://dx.doi.org/10.1073/pnas.1721733115.

Texte intégral

Résumé :

Photic zone euxinia (PZE) is a condition where anoxic, H2S-rich waters occur in the photic zone (PZ). PZE has been invoked as an impediment to the evolution of complex life on early Earth and as a kill mechanism for Phanerozoic mass extinctions. Here, we investigate the potential application of mercury (Hg) stable isotopes in marine sedimentary rocks as a proxy for PZE by measuring Hg isotope compositions in late Mesoproterozoic (∼1.1 Ga) shales that have independent evidence of PZE during discrete intervals. Strikingly, a significantly negative shift of Hg mass-independent isotope fractionati

Styles APA, Harvard, Vancouver, ISO, etc.

15

Cheng, Keyi, Maya Elrick, and Stephen J. Romaniello. "Early Mississippian ocean anoxia triggered organic carbon burial and late Paleozoic cooling: Evidence from uranium isotopes recorded in marine limestone." Geology 48, no. 4 (2020): 363–67. http://dx.doi.org/10.1130/g46950.1.

Texte intégral

Résumé :

Abstract The Early Mississippian (Tournaisian) positive δ13C excursion (mid-Tournaisian carbon isotope excursion [TICE]) was one of the largest in the Phanerozoic, and the organic carbon (OC) burial associated with its development is hypothesized to have enhanced late Paleozoic cooling and glaciation. We tested the hypothesis that expanded ocean anoxia drove widespread OC burial using uranium isotopes (δ238U) of Lower Mississippian marine limestone as a global seawater redox proxy. The δ238U trends record a large Tournaisian negative excursion lasting ∼1 m.y. The lack of covariation between δ2

Styles APA, Harvard, Vancouver, ISO, etc.

16

Archibald, Zofia Halina. "EUXINE SITES." Classical Review 52, no. 1 (2002): 142–44. http://dx.doi.org/10.1093/cr/52.1.142.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

17

WOTTE, THOMAS, та HARALD STRAUSS. "Questioning a widespread euxinia for the Furongian (Late Cambrian) SPICE event: indications from δ13C, δ18O, δ34S and biostratigraphic constraints". Geological Magazine 152, № 6 (2015): 1085–103. http://dx.doi.org/10.1017/s0016756815000187.

Texte intégral

Résumé :

AbstractResults from a high-resolution study of δ13Ccarb, δ18Ocarb, δ34SCAS, δ34SCRSand elemental concentrations (Ca, Fe, Mg, Mn and Sr) in the Furongian Kyrshabakty section, southern Kazakhstan, are reported here. The investigated interval covers the Drumian to Jiangshanian stages of the Cambrian Period, respectively the regionalPtychagnostus atavustoIvshinagnostus ivshini-Irvingella majortrilobite zones. δ13Ccarbdata include the Steptoean positive carbon isotope excursion (SPICE) with a local peak value of +5‰. The onset of SPICE corresponds to theKormagnostus simplex–Glyptagnostus stolidotu

Styles APA, Harvard, Vancouver, ISO, etc.

18

Seitaj, Dorina, Regina Schauer, Fatimah Sulu-Gambari, et al. "Cable bacteria generate a firewall against euxinia in seasonally hypoxic basins." Proceedings of the National Academy of Sciences 112, no. 43 (2015): 13278–83. http://dx.doi.org/10.1073/pnas.1510152112.

Texte intégral

Résumé :

Seasonal oxygen depletion (hypoxia) in coastal bottom waters can lead to the release and persistence of free sulfide (euxinia), which is highly detrimental to marine life. Although coastal hypoxia is relatively common, reports of euxinia are less frequent, which suggests that certain environmental controls can delay the onset of euxinia. However, these controls and their prevalence are poorly understood. Here we present field observations from a seasonally hypoxic marine basin (Grevelingen, The Netherlands), which suggest that the activity of cable bacteria, a recently discovered group of sulf

Styles APA, Harvard, Vancouver, ISO, etc.

19

Archibald, Zofia Halina. "THE EUXINE SEA." Classical Review 50, no. 1 (2000): 237–39. http://dx.doi.org/10.1093/cr/50.1.237.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

20

Sokolovskaya, Yu G., E. D. Krasnova, D. A. Voronov, D. N. Matorin, A. A. Zhiltsova, and S. V. Patsaeva. "Optical Proxies of Euxinia: Spectroscopic Studies of CDOM, Chlorophyll, and Bacteriochlorophylls in the Lagoon on Zeleny Cape (the White Sea)." Photonics 10, no. 6 (2023): 672. http://dx.doi.org/10.3390/photonics10060672.

Texte intégral

Résumé :

Along the shoreline of the White Sea, due to the post-glacial uplift of the coast, some water bodies with stable stratification have been formed. They have been classified as meromictic as they are at different stages of isolation from the Sea. As separation progresses, significant changes occur in the water column, including the composition of chromophoric dissolved organic matter (CDOM) and the structure of the aquatic microbial community. In this work, we searched for optical proxies of euxinia (anoxic conditions with accumulated hydrogen sulfide) in the water column of the meromictic lagoo

Styles APA, Harvard, Vancouver, ISO, etc.

21

Kunert, Alexandra, Johnathan Clarke, and Brian Kendall. "Molybdenum Isotope Constraints on the Origin of Vanadium Hyper-Enrichments in Ediacaran–Phanerozoic Marine Mudrocks." Minerals 10, no. 12 (2020): 1075. http://dx.doi.org/10.3390/min10121075.

Texte intégral

Résumé :

Vanadium is an important redox-sensitive trace metal for paleoenvironmental reconstructions. Modern organic-rich sediments persistently contain sediment V enrichments <500 μg/g, but many ancient marine organic-rich mudrocks record enrichments >500 μg/g. Previous studies propose that ancient V enrichments of these magnitudes (“V hyper-enrichments”) were deposited from hyper-sulfidic bottom-waters with higher H2S levels (≥10 mM) than observed in modern euxinic basins. To test the importance of hyper-sulfidic conditions for generating V hyper-enrichments, we compare V concentrations with Mo

Styles APA, Harvard, Vancouver, ISO, etc.

22

Porter, Susannah M., and Leigh Anne Riedman. "Systematics of organic-walled microfossils from the ca. 780–740 Ma Chuar Group, Grand Canyon, Arizona." Journal of Paleontology 90, no. 5 (2016): 815–53. http://dx.doi.org/10.1017/jpa.2016.57.

Texte intégral

Résumé :

AbstractThe ca. 780–740 Ma Chuar Group, Grand Canyon, Arizona, provides an exceptional record of life during the diversification of crown-group eukaryotes, just prior to the first Cryogenian glaciation. We document in detail the assemblage of organic-walled microfossils preserved in fine-grained siliciclastics throughout the unit. In contrast with earlier studies, we primarily used SEM to document fossil morphologies, augmented by transmitted light microscopy, FIB-SEM, and TEM. This resulted in the discovery of new species and the recognition of broad-ranging, intraspecific biological and taph

Styles APA, Harvard, Vancouver, ISO, etc.

23

Sokolova, T. A., and O. Yu Ermolaeva. "Environmental assessment of vegetation of the spit and Tuzla island (Krasnodar Territory, Republic of the Crimea)." Plant Biology and Horticulture: theory, innovation, no. 149 (December 10, 2019): 165–76. http://dx.doi.org/10.36305/0201-7997-2019-149-165-176.

Texte intégral

Résumé :

In order to classify the vegetation, as well as its sozological assessment, based on the Brown-Blancke method, geobotanical descriptions of the vegetation of the spit and Tuzla island were carried out, rare species were noted, and a cartographic survey of the territory was carried out. As a result of five-year studies, the classification of vegetation of the spit and Tuzla island was made. 22 associations (2 new - Lactuco tataricae-Elaeagnetum angustifoliae and Gypsophiletum perfoliatae), 8 subassociations (6 new - Lactuco tataricae-Elaeagnetum angustifoliae juncetosum maritimae, L. t.-E. a.)

Styles APA, Harvard, Vancouver, ISO, etc.

24

Lenz, C., T. Jilbert, D. J. Conley, M. Wolthers, and C. P. Slomp. "Are recent changes in sediment manganese sequestration in the euxinic basins of the Baltic Sea linked to the expansion of hypoxia?" Biogeosciences 12, no. 16 (2015): 4875–94. http://dx.doi.org/10.5194/bg-12-4875-2015.

Texte intégral

Résumé :

Abstract. Expanding hypoxia in the Baltic Sea over the past century has led to the development of anoxic and sulfidic (euxinic) deep basins that are only periodically ventilated by inflows of oxygenated waters from the North Sea. In this study, we investigate the potential consequences of the expanding hypoxia for manganese (Mn) burial in the Baltic Sea using a combination of pore water and sediment analyses of dated sediment cores from eight locations. Diffusive fluxes of dissolved Mn from sediments to overlying waters at oxic, hypoxic and euxinic sites are consistent with an active release o

Styles APA, Harvard, Vancouver, ISO, etc.

25

Lenz, C., T. Jilbert, D. J. Conley, M. Wolthers, and C. P. Slomp. "Are recent changes in sediment manganese sequestration in the euxinic basins of the Baltic Sea linked to the expansion of hypoxia?" Biogeosciences Discussions 11, no. 6 (2014): 9889–918. http://dx.doi.org/10.5194/bgd-11-9889-2014.

Texte intégral

Résumé :

Abstract. Expanding hypoxia in the Baltic Sea over the past century has led to anoxic and sulfidic (euxinic) deep basins that are only periodically ventilated by inflows of oxygenated waters from the North Sea. In this study, we investigate the consequences of the expanding hypoxia for manganese (Mn) burial in the Baltic Sea using a combination of pore water and sediment analyses of well-dated sediment cores from 8 locations. Diffusive fluxes of dissolved Mn from sediments to overlying waters at oxic and hypoxic sites are in line with an active release of Mn from these areas. However, this flu

Styles APA, Harvard, Vancouver, ISO, etc.

26

Olteanu, Radu. "The “Cimpia Moment” (late Miocene, Romania) and the Pannonian-Pontian boundary, defined by ostracods." Journal of Micropalaeontology 8, no. 2 (1989): 239–47. http://dx.doi.org/10.1144/jm.8.2.239.

Texte intégral

Résumé :

Abstract. The boundary between the Pannonian and Pontian (late Miocene) of the Pannonian area is recognised on the basis of ostracod faunas. A comparison is made between the faunas of the Pannonian Basin and the Dacic-Euxine Basin. A transitional fauna with Pannonian elements, but a stronger Pontian component, is described from Cimpia (Romania). This indicates a more gradual transition between the two stages in the Pannonian Basin than in the Dacic-Euxine Basin, where there is a sharp faunal break indicating a period of non-deposition or erosion.

Styles APA, Harvard, Vancouver, ISO, etc.

27

Helz, George R., and Marvourneen K. Dolor. "What regulates rhenium deposition in euxinic basins?" Chemical Geology 304-305 (April 2012): 131–41. http://dx.doi.org/10.1016/j.chemgeo.2012.02.011.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

28

Scott, Clint, and Timothy W. Lyons. "Contrasting molybdenum cycling and isotopic properties in euxinic versus non-euxinic sediments and sedimentary rocks: Refining the paleoproxies." Chemical Geology 324-325 (September 2012): 19–27. http://dx.doi.org/10.1016/j.chemgeo.2012.05.012.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

29

Bura-Nakić, Elvira, Morten B. Andersen, Corey Archer, Gregory F. de Souza, Marija Marguš, and Derek Vance. "Coupled Mo-U abundances and isotopes in a small marine euxinic basin: Constraints on processes in euxinic basins." Geochimica et Cosmochimica Acta 222 (February 2018): 212–29. http://dx.doi.org/10.1016/j.gca.2017.10.023.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

30

Filatova, N. I. "Jurassic anoxic event in the Pacific (on the West Kamchatka-Asia data)." Доклады Академии наук 487, no. 5 (2019): 543–46. http://dx.doi.org/10.31857/s0869-56524875543-546.

Texte intégral

Résumé :

The correlation of allochthonous lithotectonic complexes of the Pacific allows to establish Early Jurassic (Sinemurian-Toarcian) anoxic event (J1-OAE) for time in the Asia-West Kamchatka region. This event is characterized by organic-riched black cherts and shales bearing pyrite that accumulated in the euxinic oceanic deep water basins of the Pacific. Later anoxic regime gradually weakened that was reflected in dominating of Midle-Upper Jurassic red gematite jaspers. J1-OAE in the Pacific was synchronous to global warming induced by planetary magmatic activity. Volcanic gases and hydroterms st

Styles APA, Harvard, Vancouver, ISO, etc.

31

Abraham, Mohd Al Farid, Bernhard David A. Naafs, Vittoria Lauretano, Fotis Sgouridis, and Richard D. Pancost. "Warming drove the expansion of marine anoxia in the equatorial Atlantic during the Cenomanian leading up to Oceanic Anoxic Event 2." Climate of the Past 19, no. 12 (2023): 2569–80. http://dx.doi.org/10.5194/cp-19-2569-2023.

Texte intégral

Résumé :

Abstract. Oceanic Anoxic Event 2 (OAE 2) (∼ 93.5 Ma) is characterized by widespread marine anoxia and elevated burial rates of organic matter. However, the factors that led to this widespread marine deoxygenation and the possible link with climatic change remain debated. Here, we report long-term biomarker records of water-column anoxia, water-column and photic zone euxinia (PZE), and sea surface temperature (SST) from Demerara Rise in the equatorial Atlantic that span 3.8 Myr of the late Cenomanian to Turonian, including OAE 2. We find that total organic carbon (TOC) content is high but varia

Styles APA, Harvard, Vancouver, ISO, etc.

32

Scholz, Florian, James McManus, and Stefan Sommer. "The manganese and iron shuttle in a modern euxinic basin and implications for molybdenum cycling at euxinic ocean margins." Chemical Geology 355 (September 2013): 56–68. http://dx.doi.org/10.1016/j.chemgeo.2013.07.006.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

33

Hedreen, Guy. "The Cult of Achilles in the Euxine." Hesperia 60, no. 3 (1991): 313. http://dx.doi.org/10.2307/148068.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

34

KLEPAC-CERAJ, V., C. A. HAYES, W. P. GILHOOLY, T. W. LYONS, R. KOLTER, and A. PEARSON. "Microbial diversity under extreme euxinia: Mahoney Lake, Canada." Geobiology 10, no. 3 (2012): 223–35. http://dx.doi.org/10.1111/j.1472-4669.2012.00317.x.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

35

Meyer, Katja M., and Lee R. Kump. "Oceanic Euxinia in Earth History: Causes and Consequences." Annual Review of Earth and Planetary Sciences 36, no. 1 (2008): 251–88. http://dx.doi.org/10.1146/annurev.earth.36.031207.124256.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

36

Helz, George R., Elvira Bura-Nakić, Nevenka Mikac, and Irena Ciglenečki. "New model for molybdenum behavior in euxinic waters." Chemical Geology 284, no. 3-4 (2011): 323–32. http://dx.doi.org/10.1016/j.chemgeo.2011.03.012.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

37

Stacey, Jack, Ashleigh v. S. Hood, and Malcolm W. Wallace. "Persistent late Tonian shallow marine anoxia and euxinia." Precambrian Research 397 (October 2023): 107207. http://dx.doi.org/10.1016/j.precamres.2023.107207.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

38

Rddad, Larbi. "Fixation and redistribution of arsenic during early and late diagenesis in the organic matter-rich members of the Lockatong Formation, Newark basin, USA: implication for the quality of groundwater." Atlantic Geology 53 (June 28, 2017): 253–68. http://dx.doi.org/10.4138/atlgeol.2017.010.

Texte intégral

Résumé :

The Byram and Walls Island members in the lower and upper sections, respectively, of the Lockatong Formation in the Newark basin near the border between Pennsylvania and New Jersey were chosen to assess (i) the role of euxinic/anoxic conditions in sequestering arsenic (As) and other trace elements and (ii) the redistribution of these elements during catagenetic transformations. ἀese members are rich in organic matter and host pyrite which occurs as disseminations, small patches, and subparallel veins. ἀe sulfur isotope values of pyrite samples range between -7.5 and 0.5 ‰CDT (average = -3.5‰CD

Styles APA, Harvard, Vancouver, ISO, etc.

39

Staubwasser, M., R. Schoenberg, F. von Blanckenburg, S. Krüger, and C. Pohl. "Isotope fractionation between dissolved and suspended particulate Fe in the oxic and anoxic water column of the Baltic Sea." Biogeosciences Discussions 9, no. 4 (2012): 4793–817. http://dx.doi.org/10.5194/bgd-9-4793-2012.

Texte intégral

Résumé :

Abstract. Fe isotope ratios and concentrations of dissolved Fe (Fedis, < 0.45 μm) and of suspended particulate Fe (FeSPM) from a depth profile in the Eastern Gotland Basin, Baltic Sea, show a sharp gradient in δ56Fedis across the suboxic interface with δ56Fedis = −0.4 ‰ in the euxinic deep basin and δ56Fedis = +0.3 ‰ in the oxic upper water column. The isotopic gradient overlaps with a strong concentration gradient of Fedis, a concentration maximum in FeSPM and lower δ56FeSPM values than δ56Fedis. These features indicate preferential loss of light Fe isotopes into suspended iron-oxyhydroxid

Styles APA, Harvard, Vancouver, ISO, etc.

40

ARSLAN, Murat. "Arrianus un Karadeniz Seyahati (Arriani Periplus Ponti Euxini)." LIBRI Kitap Tanitimi, Elestiri ve Ceviri Dergisi 1, no. 1 (2015): 93. http://dx.doi.org/10.20480/lbr.2015115472.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

41

Nadel, Benjamin. "The Euxine Pontos as seen by the Greeks." Dialogues d'histoire ancienne 17, no. 2 (1991): 115–26. http://dx.doi.org/10.3406/dha.1991.1940.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

42

Fox, Calum P., Jessica H. Whiteside, Paul E. Olsen, et al. "Two-pronged kill mechanism at the end-Triassic mass extinction." Geology 50, no. 4 (2022): 448–53. http://dx.doi.org/10.1130/g49560.1.

Texte intégral

Résumé :

Abstract High-resolution biomarker and compound-specific isotope distributions coupled with the degradation of calcareous fossil remnants reveal that intensive euxinia and decalcification (acidification) driven by Central Atlantic magmatic province (CAMP) activity formed a two-pronged kill mechanism at the end-Triassic mass extinction. In a newly proposed extinction interval for the basal Blue Lias Formation (Bristol Channel Basin, UK), biomarker distributions reveal an episode of persistent photic zone euxinia (PZE) that extended further upward into the surface waters. In the same interval, s

Styles APA, Harvard, Vancouver, ISO, etc.

43

Loevezijn, Gerard B. S. van, and J. G. M. Raven. "From carbonate platform to euxinic sea – the collapse of an Early/Middle Devonian reef, Cantabrian Mountains (Spain)." Geologos 23, no. 3 (2017): 143–61. http://dx.doi.org/10.1515/logos-2017-0018.

Texte intégral

Résumé :

AbstractThe Santa Lucía Formation represents the major phase in Devonian reef development of the Cantabrian Zone (Cantabrian Mountains, northwest Spain). In the present study the transition from the carbonate platform deposits of the Santa Lucía Formation to the overlying euxinic basinal deposits of the Huergas Formation is described. These transitional strata are connected to the Basal Choteč Event and represent a condensed sedimentation of micritic dark-grey and black limestones with an upward increase of dark shale intercalations with iron mineralisation surfaces and storm-induced brachiopo

Styles APA, Harvard, Vancouver, ISO, etc.

44

Slomp, Caroline P. "Reconstructing the history of euxinia in a coastal sea." Geology 41, no. 4 (2013): 523–24. http://dx.doi.org/10.1130/focus0420131.1.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

45

Grice, K. "Photic Zone Euxinia During the Permian-Triassic Superanoxic Event." Science 307, no. 5710 (2005): 706–9. http://dx.doi.org/10.1126/science.1104323.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

46

Barberán, Albert, and Emilio O. Casamayor. "Euxinic Freshwater Hypolimnia Promote Bacterial Endemicity in Continental Areas." Microbial Ecology 61, no. 2 (2010): 465–72. http://dx.doi.org/10.1007/s00248-010-9775-6.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

47

Wu, C., T. Yang, G. A. Shields, et al. "Termination of Cryogenian ironstone deposition by deep ocean euxinia." Geochemical Perspectives Letters 15 (July 2020): 1–5. http://dx.doi.org/10.7185/geochemlet.2025.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

48

Eckert, Sebastian, Hans-Jürgen Brumsack, Silke Severmann, Bernhard Schnetger, Christian März, and Henning Fröllje. "Establishment of euxinic conditions in the Holocene Black Sea." Geology 41, no. 4 (2013): 431–34. http://dx.doi.org/10.1130/g33826.1.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

49

Fulton, J. M., M. A. Arthur, B. Thomas, and K. H. Freeman. "Pigment carbon and nitrogen isotopic signatures in euxinic basins." Geobiology 16, no. 4 (2018): 429–45. http://dx.doi.org/10.1111/gbi.12285.

Texte intégral

Styles APA, Harvard, Vancouver, ISO, etc.

50

Hubareva, E. S., and B. E. Anninsky. "Quantitative distribution and lipid reserves of the population of <i>Calanus euxinus</i> (Copepoda) in the Black Sea in late Autumn 2017." Okeanologiâ 64, no. 3 (2024): 462–72. https://doi.org/10.31857/s0030157424030074.

Texte intégral

Résumé :

Field data on abundance, biomass, age structure and lipid reserves of the population of copepod Сalanus euxinus in deep pelagial and Crimean shelf regions of the Black Sea in November 2017 were analyzed. Abundance and biomass of this species in deep areas (10.2 ± 0.5×103 ind/m2 and 7.3 ± 0.5 g/m–2, respectively) were close to the average annual values for the seasons with moderate development of planktivorous jellyfish populations. Mean abundance and biomass of the copepod were similar to the analogous values for 2016 when the abundance of medusae was twice lower. However, in 2017 the dense ag

Styles APA, Harvard, Vancouver, ISO, etc.

Nous offrons des réductions sur tous les plans premium pour les auteurs dont les œuvres sont incluses dans des sélections littéraires thématiques. Contactez-nous pour obtenir un code promo unique!