10.6084/m9.figshare.3454847.v1
A.H. Al-Suwaidi
A.H.
Al-Suwaidi
G.N. Angelozzi
G.N.
Angelozzi
F. Baudin
F.
Baudin
S.E. Damborenea
S.E.
Damborenea
S.P. Hesselbo
S.P.
Hesselbo
H.C. Jenkyns
H.C.
Jenkyns
M.O. Manceñido
M.O.
Manceñido
A.C. Riccardi
A.C.
Riccardi
First record of the Early Toarcian Oceanic Anoxic Event from the Southern Hemisphere, Neuquén Basin, Argentina
Geological Society of London
2016
Neuqu
Toarcian Oceanic Anoxic Event
bulk
tenuicostatum
excursion
Southern Hemisphere
Geology
2016-06-21 12:23:46
Dataset
https://geolsoc.figshare.com/articles/dataset/First_record_of_the_Early_Toarcian_Oceanic_Anoxic_Event_from_the_Southern_Hemisphere_Neuqu_n_Basin_Argentina/3454847
<p>The first record of the Early Toarcian Oceanic Anoxic Event (<em>c</em>. 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 (δ<sup>13</sup>C<sub>org</sub>) in bulk rock and fossil wood. The negative excursion of −6‰ in bulk organic carbon (falling to −31.3‰) crosses the boundary
of the <em>tenuicostatum</em>–<em>hoelderi</em> Andean ammonite Zones, equivalent to the <em>tenuicostatum</em>–<em>falciferum</em>/<em>serpentinum</em> zones of Europe. These data indicate that the Early Toarcian Oceanic Anoxic Event was a global phenomenon.
</p>