Results 21 to 30 of about 2,191 (193)
Proceedings, 2022 The paleontological analysis of the fauna of ammonites collected in the marl–limestone series of the Pliensbachian and The Toarcian of the Es-Saffeh Mountains (Tiaret, western Algeria) brings new data to the Oceanic Anoxic Event of the lower Toarcian (T ...
Fatiha Douas Bengoudira +2 more
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The impact of the Pliensbachian–Toarcian crisis on belemnite assemblages and size distribution
Swiss Journal of Palaeontology, 2021 The second-order Pliensbachian–Toarcian crisis affected major groups of marine organisms. While its impact has been intensively studied for ammonites, the response of belemnites is only currently emerging through quantitative studies.
Kenneth De Baets +13 more
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The Toarcian Oceanic Anoxic Event: where do we stand?
Geological Society, London, Special Publications, 2021 Abstract The study of past climate changes is pivotal for understanding the complex biogeochemical interactions through time between the geosphere, atmosphere, hydrosphere and biosphere, which are critical for predicting future global changes.
Reolid, Matías +3 more
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Mechanisms and drivers of belemnite body-size dynamics across the Pliensbachian–Toarcian crisis [PDF]
Royal Society Open Science, 2019 Body-size reduction is considered an important response to current climate warming and has been observed during past biotic crises, including the Pliensbachian–Toarcian crisis, a second-order mass extinction.
Patrícia Rita +4 more
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Rivista Italiana di Paleontologia e Stratigrafia, 2021 Calcareous nannofossil biostratigraphy was conducted across the Toarcian Oceanic Anoxic Event (T-OAE) interval cored at Colle di Sogno and Gajum in the Lombardy Basin (Southern Alps, Northern Italy).
STEFANO VISENTIN, ELISABETTA ERBA
doaj +1 more source
AGU Advances, 2022 Many metals present in trace concentrations in the oceans are sensitive to reduction and oxidation reactions (termed redox‐sensitive trace metals or RSTMs) and can therefore be affected during intervals of expanded oceanic anoxia and euxinia (anoxic and ...
T. R. Them II +5 more
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Toarcian oceanic anoxic event: An assessment of global causes using belemnite C isotope records [PDF]
, 2005 Two hypotheses have been proposed to explain simultaneous large negative excursions (up to 7% PeeDee belemnite) in bulk carbonate (delta(13)C(carb)) and organic carbon isotope records (delta(13)C(org)) from black shales marking the Toarcian oceanic ...
Bailey, TR +5 more
core +1 more source
Molybdenum‐isotope chemostratigraphy and paleoceanography of the Toarcian Oceanic Anoxic Event (Early Jurassic) [PDF]
Paleoceanography, 2017 AbstractMolybdenum (Mo)‐isotope chemostratigraphy of organic‐rich mudrocks has been a valuable tool for testing the hypothesis that the Toarcian Oceanic Anoxic Event (T‐OAE, Early Jurassic, ~183 Ma) was characterized by the spread of marine euxinia (and organic matter burial) at a global scale.
Alexander J. Dickson +7 more
openaire +2 more sources
The Impact of Global Warming and Anoxia on Marine Benthic Community Dynamics: an Example from the Toarcian (Early Jurassic) [PDF]
, 2013 The Pliensbachian-Toarcian (Early Jurassic) fossil record is an archive of natural data of benthic community response to global warming and marine long-term hypoxia and anoxia.
A Hallam +100 more
core +5 more sources
Deep-time Arctic climate archives: high-resolution coring of Svalbard's sedimentary record – SVALCLIME, a workshop report [PDF]
Scientific Drilling, 2023 We held the MagellanPlus workshop SVALCLIME “Deep-time Arctic climate archives: high-resolution coring of Svalbard's sedimentary record”, from 18 to 21 October 2022 in Longyearbyen, to discuss scientific drilling of the unique high ...
K. Senger +13 more
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