First record of the Early Toarcian Oceanic Anoxic Event from the Southern Hemisphere, Neuquén Basin, Argentina

Name: First record of the Early Toarcian Oceanic Anoxic Event from the Southern Hemisphere, Neuquén Basin, Argentina
Creator: H.C. Jenkyns; F. Baudin; G.N. Angelozzi; M.O. Manceñido; A.C. Riccardi; S.E. Damborenea; S.P. Hesselbo; A.H. Al-Suwaidi
Published: 2016-06-21 00:00:00
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Geological Society of London research repository2016-06-21 更新2026-05-11 收录

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https://geolsoc.figshare.com/articles/dataset/First_record_of_the_Early_Toarcian_Oceanic_Anoxic_Event_from_the_Southern_Hemisphere_Neuqu_n_Basin_Argentina/3454847/1

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The first record of the Early Toarcian Oceanic Anoxic Event (c. 183 Ma) from the Southern Hemisphere is described from the Neuquén Basin, Argentina, identified chemostratigraphically on the basis of a relative increase in marine organic carbon and a characteristic negative carbon-isotope excursion (δ13Corg) in bulk rock and fossil wood. The negative excursion of −6‰ in bulk organic carbon (falling to −31.3‰) crosses the boundary of the tenuicostatum–hoelderi Andean ammonite Zones, equivalent to the tenuicostatum–falciferum/serpentinum zones of Europe. These data indicate that the Early Toarcian Oceanic Anoxic Event was a global phenomenon.

提供机构：

H.C. Jenkyns; F. Baudin; G.N. Angelozzi; M.O. Manceñido; A.C. Riccardi; S.E. Damborenea; S.P. Hesselbo; A.H. Al-Suwaidi

创建时间：

2016-06-21