Depositional paleoenvironment and source rock characterization across the Toarcian Oceanic Anoxic Event from the eastern Tethys, Tibet, SW China
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Coal Geology"
DOI: 10.1016/j.coal.2021.103780
Abstract: Abstract An integrated approach based on organic petrographic and geochemical proxies along with palynological and palynofacies analysis were employed using 24 rock samples representing the upper part of the Quse and Sewa formations in the… read more here.
Keywords: toarcian oceanic; oceanic anoxic; rock characterization; anoxic event ... See more keywords
Rapid light carbon releases and increased aridity linked to Karoo–Ferrar magmatism during the early Toarcian oceanic anoxic event
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DOI: 10.1038/s41598-022-08269-y
Abstract: Large-scale release of isotopically light carbon is responsible for the carbon isotope excursion (CIE) of the Toarcian Oceanic Anoxic Event during the Lower Jurassic. Proposed sources include methane hydrate dissociation, volcanogenic outgassing of carbon dioxide… read more here.
Keywords: anoxic event; karoo ferrar; carbon; light carbon ... See more keywords
Direct coupling between carbon release and weathering during the Toarcian oceanic anoxic event
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DOI: 10.1130/g47509.1
Abstract: Silicate weathering represents a major feedback mechanism in the Earth’s climate system, helping to stabilize atmospheric CO2 levels and temperature on million-year time scales. On shorter time scales of greater relevance to understanding the fate… read more here.
Keywords: carbon; oceanic anoxic; event; toarcian oceanic ... See more keywords
Collapse of terrestrial ecosystems linked to heavy metal poisoning during the Toarcian oceanic anoxic event
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DOI: 10.1130/g51037.1
Abstract: The Early Jurassic Toarcian oceanic anoxic event (T-OAE, ca. 183 Ma) was accompanied by a major biotic turnover in the oceans and substantial vegetation change on land. The marine biotic crisis has been attributed to… read more here.
Keywords: collapse; collapse terrestrial; heavy metal; anoxic event ... See more keywords