scholarly journals Reply to comment on “Carbon-isotope record of the Early Jurassic (Toarcian) oceanic anoxic event from fossil wood and marine carbonate (Lusitanian Basin, Portugal)”

2007 ◽  
Vol 259 (3-4) ◽  
pp. 640-641 ◽  
Author(s):  
Stephen P. Hesselbo ◽  
Hugh C. Jenkyns ◽  
Luis V. Duarte ◽  
Luiz C.V. Oliveira
Keyword(s):  
Carbon Isotope ◽  
Fossil Wood ◽  
Early Jurassic ◽  
Oceanic Anoxic Event ◽  
Marine Carbonate ◽  
Anoxic Event ◽  
Isotope Record ◽  
Lusitanian Basin

A carbon-isotope perturbation at the Pliensbachian–Toarcian boundary: evidence from the Lias Group, NE England

2009 ◽  
Vol 147 (2) ◽  
pp. 181-192 ◽  
Author(s):  
KATE LITTLER ◽  
STEPHEN P. HESSELBO ◽  
HUGH C. JENKYNS
Keyword(s):  
Organic Matter ◽  
Carbon Isotope ◽  
Similar Pattern ◽  
Oceanic Anoxic Event ◽  
European Section ◽  
Extinction Event ◽  
Anoxic Event ◽  
Global Extinction ◽  
Isotope Record ◽  
Bulk Organic Matter

AbstractA perturbation in the carbon-isotope record at the time of the Pliensbachian–Toarcian boundary (~ 184 Ma) in the Early Jurassic is reported, based on new data from Yorkshire, England. Two sharp δ13Corg negative excursions, each with a magnitude of ~ −2.5 ‰ and reaching minimum values of −28.5 ‰, are recorded in the bulk organic-matter record in sediments of latest Pliensbachian to earliest Toarcian age. A similar pattern of negative carbon-isotope excursions has been observed at the stage boundary in the SW European section at Peniche, Portugal in δ13Ccarbonate, δ13Cwood and δ13Cbrachiopod records. The isotopic excursion is of interest when considering the genesis and development of the later Toarcian Oceanic Anoxic Event (OAE), as well as the second-order global extinction event that spans the stage boundary. Furthermore, the isotope excursion potentially provides a chemostratigraphic marker for recognition of the stage boundary, which is currently achieved on the basis of different ammonite faunas in the NW European and Tethyan realms.

scholarly journals The palynological response to the Toarcian Oceanic Anoxic Event (Early Jurassic) at Peniche, Lusitanian Basin, western Portugal

2017 ◽  
Vol 137 ◽  
pp. 46-63 ◽  
Author(s):  
Vânia F. Correia ◽  
James B. Riding ◽  
Luís V. Duarte ◽  
Paulo Fernandes ◽  
Zélia Pereira
Keyword(s):  
Early Jurassic ◽  
Oceanic Anoxic Event ◽  
Anoxic Event ◽  
Lusitanian Basin

Aptian carbon-isotope record from the Sergipe-Alagoas Basin: New insights into oceanic anoxic event 1a and the timing of seawater entry into the South Atlantic

2020 ◽  
Vol 53 (3) ◽  
pp. 333-364
Author(s):  
Leonardo R. Tedeschi ◽  
Hugh C. Jenkyns ◽  
Stuart A. Robinson ◽  
Cecília C. Lana ◽  
Maria Rosilene F. Menezes Santos ◽  
...  
Keyword(s):  
Carbon Isotope ◽  
South Atlantic ◽  
The South ◽  
Oceanic Anoxic Event ◽  
Anoxic Event ◽  
Isotope Record
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