scholarly journals Enhanced productivity led to increased organic carbon burial in the euxinic North Atlantic basin during the late Cenomanian oceanic anoxic event

2002 ◽  
Vol 17 (4) ◽  
pp. 3-1-3-13 ◽  
Author(s):  
Marcel M. M. Kuypers ◽  
Richard D. Pancost ◽  
Ivar A. Nijenhuis ◽  
Jaap S. Sinninghe Damsté
Keyword(s):  
Organic Carbon ◽  
North Atlantic ◽  
Atlantic Basin ◽  
Oceanic Anoxic Event ◽  
North Atlantic Basin ◽  
Carbon Burial ◽  
Organic Carbon Burial ◽  
Anoxic Event

scholarly journals Orbital forcing of organic carbon burial in the proto-North Atlantic during oceanic anoxic event 2

2004 ◽  
Vol 228 (3-4) ◽  
pp. 465-482 ◽  
Author(s):  
Marcel M.M. Kuypers ◽  
Lucas J. Lourens ◽  
W. Irene C. Rijpstra ◽  
Richard D. Pancost ◽  
Ivar A. Nijenhuis ◽  
...  
Keyword(s):  
Organic Carbon ◽  
North Atlantic ◽  
Orbital Forcing ◽  
Oceanic Anoxic Event ◽  
Carbon Burial ◽  
Organic Carbon Burial ◽  
Oceanic Anoxic Event 2 ◽  
Anoxic Event

scholarly journals Spatial extent and degree of oxygen depletion in the deep proto-North Atlantic basin during Oceanic Anoxic Event 2

2014 ◽  
Vol 15 (11) ◽  
pp. 4254-4266 ◽  
Author(s):  
Niels A. G. M. van Helmond ◽  
Itzel Ruvalcaba Baroni ◽  
Appy Sluijs ◽  
Jaap S. Sinninghe Damsté ◽  
Caroline P. Slomp
Keyword(s):  
North Atlantic ◽  
Oxygen Depletion ◽  
Spatial Extent ◽  
Atlantic Basin ◽  
Oceanic Anoxic Event ◽  
North Atlantic Basin ◽  
Oceanic Anoxic Event 2 ◽  
Anoxic Event

scholarly journals Supplemental Material: Quantifying volcanism and organic carbon burial across Oceanic Anoxic Event 2

2022 ◽  
Author(s):  
Nina Papadomanolaki ◽  
et al.
Keyword(s):  
Organic Carbon ◽  
Oceanic Anoxic Event ◽  
Carbon Burial ◽  
Organic Carbon Burial ◽  
Oceanic Anoxic Event 2 ◽  
Anoxic Event

Supplemental information and methods, Figures S1–S4, and Tables S1 and S2.<br>

scholarly journals Supplemental Material: Quantifying volcanism and organic carbon burial across Oceanic Anoxic Event 2

2022 ◽  
Author(s):  
Nina Papadomanolaki ◽  
et al.
Keyword(s):  
Organic Carbon ◽  
Oceanic Anoxic Event ◽  
Carbon Burial ◽  
Organic Carbon Burial ◽  
Oceanic Anoxic Event 2 ◽  
Anoxic Event

Supplemental information and methods, Figures S1–S4, and Tables S1 and S2.<br>

scholarly journals "OAE 3" – regional Atlantic organic carbon burial during the Coniacian–Santonian

2012 ◽  
Vol 8 (5) ◽  
pp. 1447-1455 ◽  
Author(s):  
M. Wagreich
Keyword(s):  
Organic Carbon ◽  
Temporal Distribution ◽  
Black Shales ◽  
Time Interval ◽  
Temporal And Spatial Distribution ◽  
Oceanic Anoxic Event ◽  
The North ◽  
Carbon Burial ◽  
Organic Carbon Burial ◽  
Anoxic Event

Abstract. The Coniacian–Santonian time interval is the inferred time of oceanic anoxic event 3 (OAE 3), the last of the Cretaceous OAEs. A detailed look on the temporal and spatial distribution of organic-rich deposits attributed to OAE 3 suggests that black shale occurrences are restricted to the equatorial to mid-latitudinal Atlantic and adjacent basins, shelves and epicontinental seas like parts of the Caribbean, the Maracaibo Basin and the Western Interior Basin, and are largely absent in the Tethys, the North Atlantic, the southern South Atlantic, and the Pacific. Here, oxic bottom waters prevailed as indicated by the widespread occurrence of red deep-marine CORBs (Cretaceous Oceanic Red Beds). Widespread CORB sedimentation started during the Turonian after Oceanic Anoxic Event 2 (OAE 2) except in the Atlantic realm where organic-rich strata continue up to the Santonian. The temporal distribution of black shales attributed to OAE 3 indicates that organic-rich strata do not define a single and distinct short-time event, but are distributed over a longer time span and occur in different basins during different times. This suggests intermittent and regional anoxic conditions from the Coniacian to the Santonian. A comparison of time-correlated high-resolution δ13C curves for this interval indicates several minor positive excursions of up to 0.5‰, probably as a result of massive organic carbon burial cycles in the Atlantic. Regional wind-induced upwelling and restricted deep basins may have contributed to the development of anoxia during a time interval of widespread oxic conditions, thus highlighting the regional character of inferred OAE 3 as regional Atlantic event(s).

scholarly journals PRELIMINARY DATA FROM THE FIRST RECORD OF THE EARLY TOARCIAN OCEANIC ANOXIC EVENT IN THE SEDIMENTS OF THE PINDOS ZONE (GREECE)

2017 ◽  
Vol 43 (2) ◽  
pp. 627 ◽  
Author(s):  
Kafousia N. Kafousia N. ◽  
V. Karakitsios ◽  
H.C. Jenkyns
Keyword(s):  
Organic Carbon ◽  
Carbon Isotope ◽  
First Record ◽  
Passive Margin ◽  
Oceanic Anoxic Event ◽  
Carbonate Carbon ◽  
Carbon Burial ◽  
Organic Carbon Burial ◽  
Anoxic Event ◽  
Regional Character

The Early Toarcian Oceanic Anoxic Event (ca 183 Ma) coincides with high palaeotemperatures, regional anoxia to euxinia, marine transgression, mass extinction and high rates of organic-carbon burial in a global context. Most of the detailed studies of this event have investigated deposits formed in the epicontinental seas of northern Europe, although coeval organic-rich shales are known locally in the Tethyan region. However, the global or regional character of this event is still under debate. In this study we present, for the first time, a high-resolution geochemical record of the Early Toarcian Oceanic Anoxic event in pelagic sediments (Kastelli Pelites) formed in a long-lived Mesozoic deep-sea basin, corresponding to the western passive margin of the Pindos Ocean of western Greece. Our data record both the positive excursion in total organic carbon (TOC) and the characteristic negative excursion in δ13Ccarb. The δ13Ccarb values are very stable in the bottom of the section (~2‰), whereas higher in the section the values drop down to ~ -5‰. Following this negative excursion, the carbonate carbon-isotope ratios return to background values. The TOC excursion is modest, rising from a background of 0.05% to ~ 2% and then returning to a background of 0.04%. Because both relative enrichment in TOC and the negative carbon-isotope excursion that characterize the Toarcian OAE are recorded in some of the deepest marine sediments of the Tethyan region, the global significance of the event is reinforced.

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