Results 91 to 100 of about 2,191 (193)

Gradual and sustained carbon dioxide release during Aptian Oceanic Anoxic Event 1a [PDF]

, 2016
During the Aptian Oceanic Anoxic Event 1a, about 120 million years ago, black shales were deposited in all the main ocean basins. The event was also associated with elevated sea surface temperatures and a calcification crisis in calcareous nannoplankton.
Castro, Jose M, de Gea, Ginés A., Naafs, B D A, Pancost, Rich D, Quijano, Maria Luisa L, Schmidt, Daniela N   +5 more
core   +3 more sources

Advances in the understanding of the Toarcian Oceanic Anoxic Event (IGCP-655 annual report)

Episodes, 2018
This is a contribution of the IGCP-655 project of the IUGS and UNESCO.
Reolid, Matias, Mattioli, Emanuela, Duarte, Luis V., Marok, Abbas   +3 more
openaire   +5 more sources

Towards an understanding of the carbon isotopic changes across the Toarcian oceanic anoxic event [PDF]

, 2005
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 2005.Includes bibliographical references (p.
Cohen, Alison Margaret
core  

Molybdenum evidence for expansive sulfidic water masses in ~750Ma oceans [PDF]

, 2014
The Ediacaran appearance of large animals, including motile bilaterians, is commonly hypothesized to reflect a physiologically enabling increase in atmospheric and oceanic oxygen abundances (pO2).
Anbar, Ariel D., Canfield, Donald E., Dahl, Tais, Frei, Robert E., Gordon, Gwyneth W., Knoll, Andrew Herbert, Rosing, Minik T.   +6 more
core   +1 more source

On the diversity of Early Jurassic cartilaginous fishes across the Toarcian Oceanic Anoxic Event [PDF]

, 2019
The Early Jurassic represents a crucial time interval in the evolutionary history of elasmobranchs, because the Toarcian witnessed a first major diversification, suggesting a profound reorganization of ecological niches of chondrichthyans, probably accompanied by a subsequent diversity decline of hybodontiforms within marine environments.
Stumpf, Sebastian, López-Romero, Faviel A., Kriwet, Jürgen   +2 more
openaire   +1 more source

Influence of palaeoweathering on trace metal concentrations and environmental proxies in black shales [PDF]

, 2017
The mineralogical and chemical compositions of Lower Carboniferous (Tournaisian) marine black shale from the Kowala quarry, the Holy Cross Mountains, Poland, were investigated.
Agnieszka Pisarzowska, Algeo, Algeo, Algeo, Allan, Altabet, Altabet, Anbar, Anthony S. Cohen, Arkadiusz Derkowski, Arnold, Arthur, Averbuch, Baker, Barling, Bauersachs, Behar, Berkowski, Berner, Bolton, Bond, Brantley, Brumsack, Chadima, Chen, Clayton, Clayton, Dalai, Derkowski, Dias, Dickson, Duan, Erickson, Faure, Franke, Freudenthal, Frimmel, Georgiev, German, Goldberg, Gong, Grosjean, Hannigan, Hatch, Helz, Huerta-Diaz, Immenhauser, Jaffe, Jan Środoń, Joachimski, Jones, Keller, Kolowith, Kump, Landais, Lehmann, Leszek Marynowski, Lev, Leythaeuser, Liermann, Littke, Liu, Lo, Lyons, Ma, Macko, Macko, Marynowski, Marynowski, Marynowski, Marynowski, Marynowski, Marynowski, McArthur, McCarty, Michał Rakociński, Morford, Mort, Möbius, Nägler, Obreht, Pearce, Pearce, Perkins, Petsch, Peucker-Ehrenbrink, Pollack, Pope, Popp, Popp, Poulson, Pujol, Rachidi, Racka, Racki, Racki, Rafał Szaniawski, Reitz, Rimmer, Rimmer, Riquier, Rooney, Ross, Rudnick, Sachs, Sackett, Saino, Schmitz, Schoepfer, Siebert, Siebert, Slomp, Szaniawski, Szaniawski, Szulczewski, Tamamura, Torsvik, Tribovillard, Tribovillard, Tulipani, Tuttle, Wignall, Wildman, Williams, Yu, Zwing, Śliwiński, Środoń, Środoń   +128 more
core   +1 more source

Phanerozoic organic-carbon-rich marine sediments: Overview and future research challenges [PDF]

, 2009
\u201cOne of the major obsessions of many early workers, to the mid-1900s, was the application of uniformitarian principles to depositional models for black shales\u201c (Arthur and Sageman, 1994).The purpose of this overview of organic-carbon(OC)-rich ...
Ferretti, Annalisa, Meyer, Phil A., Negri, Alessandra, Wagner, Thomas   +3 more
core   +1 more source

An abrupt extinction in the Middle Permian (Capitanian) of the Boreal Realm (Spitsbergen) and its link to anoxia and acidification [PDF]

, 2015
The controversial Capitanian (Middle Permian, 262 Ma) extinction event is only known from equatorial latitudes, and consequently its global extent is poorly resolved.
Beauchamp, Benoit, Blomeier, Dierk P. G., Bond, David P. G., Grasby, Stephen E., Joachimski, Michael M., Savov, Ivan, Sun, Yadong, Wignall, Paul B.   +7 more
core   +2 more sources

Ocean redox structure across the Late Neoproterozoic Oxygenation Event: A nitrogen isotope perspective [PDF]

, 2014
International audienceThe end of the Neoproterozoic Era (1000 to 541 Ma) is widely believed to have seen the transition from a dominantly anoxic to an oxygenated deep ocean.
Ader, Magali,, Busigny, Vincent,, Halverson, Galen,, Kunzmann, Marcus,, Nogueira, Afonso C. R., Sansjofre, Pierre,, Trindade, Ricardo I. F.   +6 more
core   +5 more sources

Ocean de-oxygenation, the global phosphorus cycle, and the possibility of human-caused large-scale ocean anoxia [PDF]

, 2017
The major biogeochemical cycles that keep the present-day Earth habitable are linked by a network of feedbacks, which has led to a broadly stable chemical composition of the oceans and atmosphere over hundreds of millions of years.
Lenton, TM, Mills, BJW, Watson, AJ
core   +1 more source