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
High-resolution carbon isotope records of the Toarcian Oceanic Anoxic Event (Early Jurassic) from North America and implications for the global drivers of the Toarcian carbon cycle
Sign Up to like & getrecommendations! Published in 2017 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2016.11.021
Abstract: The Mesozoic Era experienced several instances of abrupt environmental change that are associated with instabilities in the climate, reorganizations of the global carbon cycle, and elevated extinction rates. Often during these perturbations, oxygen-deficient conditions developed… read more here.
Keywords: carbon cycle; oceanic anoxic; carbon; carbon isotope ... See more keywords
Zinc- and cadmium-isotope evidence for redox-driven perturbations to global micronutrient cycles during Oceanic Anoxic Event 2 (Late Cretaceous)
Sign Up to like & getrecommendations! Published in 2020 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2020.116427
Abstract: Abstract This study uses organic-rich sediments from the Tarfaya Basin, Morocco, to assess the Cd- and Zn-isotope response to dramatic global palaeoenvironmental change during the Cenomanian–Turonian interval (Late Cretaceous). These organic-rich continental-margin deposits include an… read more here.
Keywords: anoxic event; organic rich; isotope; late cretaceous ... See more keywords
Marine primary producer community during the mid-Cretaceous oceanic anoxic events (OAEs) 1a, 1b and 1d in the Vocontian Basin (SE France) evaluated from triaromatic steroids in sediments
Sign Up to like & getrecommendations! Published in 2017 at "Organic Geochemistry"
DOI: 10.1016/j.orggeochem.2017.02.002
Abstract: Abstract Desmethyl and A-ring methyl triaromatic (TA) steroids, including dinosteroids, were analyzed in the sediments deposited during the mid-Cretaceous oceanic anoxic events (OAEs) 1a (Goguel), 1b (Jacob, Kilian and Paquier) and 1d (Breistroffer) from the… read more here.
Keywords: triaromatic steroids; mid cretaceous; events oaes; oceanic anoxic ... See more keywords
Paleoenvironmental changes during the late Albian oceanic anoxic event 1d: An example from the Capacho Formation, southwestern Venezuela
Sign Up to like & getrecommendations! Published in 2019 at "Palaeogeography, Palaeoclimatology, Palaeoecology"
DOI: 10.1016/j.palaeo.2019.02.010
Abstract: Abstract The late Albian–early Cenomanian oceanic anoxic event 1d (OAE-1d; ~103 to 99.5 Ma) represents a global interval of enhanced organic carbon burial due to widespread oxygen deficiency in the water column and/or increased primary productivity.… read more here.
Keywords: late albian; southwestern venezuela; formation southwestern; oceanic anoxic ... See more keywords
An analysis of the impacts of Cretaceous oceanic anoxic events on global molluscan diversity dynamics
Sign Up to like & getrecommendations! Published in 2019 at "Paleobiology"
DOI: 10.1017/pab.2019.10
Abstract: Abstract. Oceanic anoxic events (OAEs) are contemporaneous with 11 of the 18 largest Phanerozoic extinction events, but the magnitude and selectivity of their paleoecological impact remains disputed. OAEs are associated with abrupt, rapid warming and… read more here.
Keywords: diversity; cenomanian turonian; oceanic anoxic; molluscan diversity ... See more keywords
Biotic and Paleoceanographic Changes Across the Late Cretaceous Oceanic Anoxic Event 2 in the Southern High Latitudes (IODP Sites U1513 and U1516, SE Indian Ocean)
Sign Up to like & getrecommendations! Published in 2022 at "Paleoceanography and Paleoclimatology"
DOI: 10.1029/2022pa004474
Abstract: Oceanic Anoxic Event 2, spanning the Cenomanian/Turonian boundary (93.9 Ma), was an episode of major perturbations in the global carbon cycle. To investigate the response of biota and the paleoceanographic conditions across this event, we… read more here.
Keywords: event; southern high; anoxic event; oceanic anoxic ... See more keywords
Vegetation response to exceptional global warmth during Oceanic Anoxic Event 2
Sign Up to like & getrecommendations! Published in 2018 at "Nature Communications"
DOI: 10.1038/s41467-018-06319-6
Abstract: The Cenomanian–Turonian Oceanic Anoxic Event (OAE2; ~94.5 million years ago) represents an episode of global-scale marine anoxia and biotic turnover, which corresponds to one of the warmest time intervals in the Phanerozoic. Despite its global… read more here.
Keywords: anoxic event; vegetation response; vegetation; oceanic anoxic ... See more keywords
Mid-Cretaceous marine Os isotope evidence for heterogeneous cause of oceanic anoxic events
Sign Up to like & getrecommendations! Published in 2022 at "Nature Communications"
DOI: 10.1038/s41467-021-27817-0
Abstract: During the mid-Cretaceous, the Earth experienced several environmental perturbations, including an extremely warm climate and Oceanic Anoxic Events (OAEs). Submarine volcanic episodes associated with formation of large igneous provinces (LIPs) may have triggered these perturbations.… read more here.
Keywords: 187 188; oceanic anoxic; mid cretaceous; volcanic episodes ... See more keywords
Marine organic carbon burial increased forest fire frequency during Oceanic Anoxic Event 2
Sign Up to like & getrecommendations! Published in 2020 at "Nature Geoscience"
DOI: 10.1038/s41561-020-0633-y
Abstract: Volcanic-driven nutrient flux to the oceans stimulated marine productivity and organic matter burial during Oceanic Anoxic Event 2 (OAE2; ~94 million years ago). While the preferential burial of 13C-depleted organic matter led to a general… read more here.
Keywords: anoxic event; carbon; oceanic anoxic; event ... See more keywords
Rapid light carbon releases and increased aridity linked to Karoo–Ferrar magmatism during the early Toarcian oceanic anoxic event
Sign Up to like & getrecommendations! Published in 2022 at "Scientific Reports"
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