Geochemistry of oceanic anoxic events

HC Jenkyns - Geochemistry, Geophysics, Geosystems, 2010‏ - Wiley Online Library
Oceanic anoxic events (OAEs) record profound changes in the climatic and
paleoceanographic state of the planet and represent major disturbances in the global …

Secular environmental precursors to Early Toarcian (Jurassic) extreme climate changes

G Suan, E Mattioli, B Pittet, C Lécuyer… - Earth and Planetary …, 2010‏ - Elsevier
The Early Toarcian Oceanic Anoxic Event (T-OAE), about 183myr ago, was a global event of
environmental and carbon cycle perturbations, which deeply affected both marine biota and …

Continental weathering and redox conditions during the early Toarcian Oceanic Anoxic Event in the northwestern Tethys: Insight from the Posidonia Shale section in …

JC Montero-Serrano, KB Föllmi, T Adatte… - Palaeogeography …, 2015‏ - Elsevier
The geochemistry and mineralogy of organic-rich sediments of the Rietheim succession in
northern Switzerland were studied to evaluate the main impacts of the early Toarcian …

Evaluating the temporal link between the Karoo LIP and climatic–biologic events of the Toarcian Stage with high-precision U–Pb geochronology

B Sell, M Ovtcharova, J Guex, A Bartolini… - Earth and Planetary …, 2014‏ - Elsevier
Abstract The Karoo Large Igneous Province (K-LIP) is considered to have substantially
influenced global warming, marine anoxia, and concomitant marine extinction in the …

Global versus local processes during the Pliensbachian–Toarcian transition at the Peniche GSSP, Portugal: a multi-proxy record

A Fantasia, T Adatte, JE Spangenberg, E Font… - Earth-Science …, 2019‏ - Elsevier
Abstract The Toarcian Oceanic Anoxic Event (T-OAE,~ 183 Ma) was an episode of extreme
warmth, environmental changes and carbon cycle perturbation. We present a high …

Astronomical calibration of the Toarcian Stage: implications for sequence stratigraphy and duration of the early Toarcian OAE

S Boulila, B Galbrun, E Huret, LA Hinnov… - Earth and Planetary …, 2014‏ - Elsevier
Abstract The Toarcian Oceanic Anoxic Event (T-OAE) of the early Jurassic period involves
one of the largest perturbations of the carbon cycle in the past 250 Ma, recorded by a …

δ13C of terrestrial vegetation records Toarcian CO2 and climate gradients

W Ruebsam, M Reolid, L Schwark - Scientific reports, 2020‏ - nature.com
Throughout Earth's history, variations in atmospheric CO2 concentration modulated climate.
Understanding changes in atmospheric carbon cycle is therefore pivotal in predicting …

Carbonate uranium isotopes record global expansion of marine anoxia during the Toarcian Oceanic Anoxic Event

MN Remírez, GJ Gilleaudeau, T Gan, MA Kipp… - Proceedings of the …, 2024‏ - pnas.org
The Toarcian Oceanic Anoxic Event (T-OAE;~ 183 Mya) was a globally significant carbon-
cycle perturbation linked to widespread deposition of organic-rich sediments, massive …