An open ocean record of the Toarcian oceanic anoxic event [PDF]
Solid Earth, 2011 Oceanic anoxic events were time intervals in the Mesozoic characterized by widespread distribution of marine organic matter-rich sediments (black shales) and significant perturbations in the global carbon cycle.
D. R. Gröcke +4 more
doaj +9 more sources
Geophysical Monograph Series, Page 1-26., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Richard E. Ernst +8 more
wiley +10 more sources
Organic geochemistry of the early Toarcian oceanic anoxic event in Hawsker Bottoms, Yorkshire, England [PDF]
Earth and Planetary Science Letters, 2013 A comprehensive organic geochemical investigation of the Hawsker Bottoms outcrop section in Yorkshire, England has provided new insights about environmental conditions leading into and during the Toarcian oceanic anoxic event (T-OAE; ~183 Ma).
French, Katherine L. +4 more
core +8 more sources
Carbon sequestration in an expanded lake system during the Toarcian oceanic anoxic event [PDF]
Nature Geoscience, 2017 The Early Jurassic Toarcian oceanic anoxic event (∼183 Ma) was marked by marineanoxia–euxinia and globally significant organic-matter burial, accompanied by amajor global carbon-cycle perturbation probably linked to Karoo–Ferrarvolcanism.
Hesselbo, Stephen +10 more
core +9 more sources
Paleosedimentary environmental reconstruction and mechanisms of the response to the Toarcian OAE in a lacustrine shale system [PDF]
Scientific ReportsThe Lower Jurassic Ziliujing Formation in China’s Sichuan Basin is a significant shale target for exploration; however, the strong heterogeneity of the properties of organic matter (OM) in shale makes it challenging to identify the target area for ...
Enze Wang, Tonglou Guo, Maowen Li
doaj +2 more sources
Intensification of the lacustrine methane cycle during the Toarcian Oceanic Anoxic Event
, 2023 Abstract The Toarcian Oceanic Anoxic Event (T-OAE, ca. 183 Ma) was one of the most intense perturbations of Earth’s System of the last 250 million year. It was associated with the large-scale emission of 12C-enriched carbon, global warming, and increased organic carbon burial.
Huang Y +4 more
europepmc +2 more sources
Major sulfur cycle perturbations in the Panthalassic Ocean across the Pliensbachian-Toarcian boundary and the Toarcian Oceanic Anoxic Event [PDF]
Global and Planetary Change, 2022 The early Toarcian Oceanic Anoxic Event (T-OAE, ~183 Ma) was characterized by marine deoxygenation and the burial of organic-rich sediments at numerous localities worldwide. However, the extent of marine anoxia and its impact on the sulfur cycle during the T-OAE is currently poorly understood. Here, stable sulfur isotopes of reduced metal-bound sulfur (
Chen, W +6 more
openaire +2 more sources
Sinemurian-Pliensbachian boundary event (Early Jurassic): Current status and future challenges
地质科技通报, 2023 The Lower Jurassic is composed of the Hettangian, Sinemurian, Pliensbachian and Toarcian, among which the Toarcian oceanic anoxic events (T-OAE) have been widely studied. Depositions of black shales and negative excursions of both δ13Corg and δ13Ccarb at
Yu Ge, Zhiqiang Shi
doaj +1 more source
A First Record of Lower Jurassic (Toarcian) Coleoid Jaws in Siberia
Diversity, 2023 In the present paper, we describe several coleoid jaws discovered in the lower Toarcian black shales, cropping out along the Vilyui River (Yakutia, Russia).
Mikhail Rogov +3 more
doaj +1 more source
Trochammina as opportunist foraminifera in the Lower Jurassic from north Siberia [PDF]
Polar Research, 2014 The ecostratigraphic analysis of foraminiferal assemblages from Upper Pliensbachian to Lower Toarcian (Lower Jurassic) mudstones, siltstones and black shales from northern Siberia allows for a better understanding of the response to the benthic biotic ...
Matías Reolid +2 more
doaj +1 more source