%0 Generic %A Al-Suwaidi, A.H. %A Angelozzi, G.N. %A Baudin, F. %A Damborenea, S.E. %A Hesselbo, S.P. %A Jenkyns, H.C. %A Manceñido, M.O. %A Riccardi, A.C. %D 2016 %T First record of the Early Toarcian Oceanic Anoxic Event from the Southern Hemisphere, Neuquén Basin, Argentina %U https://geolsoc.figshare.com/articles/dataset/First_record_of_the_Early_Toarcian_Oceanic_Anoxic_Event_from_the_Southern_Hemisphere_Neuqu_n_Basin_Argentina/3454847 %R 10.6084/m9.figshare.3454847.v1 %2 https://geolsoc.figshare.com/ndownloader/files/5427146 %2 https://geolsoc.figshare.com/ndownloader/files/5427149 %2 https://geolsoc.figshare.com/ndownloader/files/5427152 %2 https://geolsoc.figshare.com/ndownloader/files/5427155 %2 https://geolsoc.figshare.com/ndownloader/files/5427158 %2 https://geolsoc.figshare.com/ndownloader/files/5427161 %2 https://geolsoc.figshare.com/ndownloader/files/5427164 %K Neuqu %K Toarcian Oceanic Anoxic Event %K bulk %K tenuicostatum %K excursion %K Southern Hemisphere %K Geology %X

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 tenuicostatumhoelderi Andean ammonite Zones, equivalent to the tenuicostatumfalciferum/serpentinum zones of Europe. These data indicate that the Early Toarcian Oceanic Anoxic Event was a global phenomenon.

%I Geological Society of London