scholarly journals New constraints on global geochemical cycling during Oceanic Anoxic Event 2 (Late Cretaceous) from a 6‐million‐year long molybdenum‐isotope record

2021 ◽  
Author(s):  
Alexander J. Dickson ◽  
Hugh C. Jenkyns ◽  
Erdem Idiz ◽  
Tim C. Sweere ◽  
Melissa J. Murphy ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Molybdenum Isotope ◽  
Oceanic Anoxic Event ◽  
Geochemical Cycling ◽  
Oceanic Anoxic Event 2 ◽  
Anoxic Event ◽  
Isotope Record

scholarly journals Basin-scale controls on the molybdenum-isotope composition of seawater during Oceanic Anoxic Event 2 (Late Cretaceous)

2016 ◽  
Vol 178 ◽  
pp. 291-306 ◽  
Author(s):  
Alexander J. Dickson ◽  
Hugh C. Jenkyns ◽  
Donald Porcelli ◽  
Sander van den Boorn ◽  
Erdem Idiz
Keyword(s):  
Late Cretaceous ◽  
Isotope Composition ◽  
Molybdenum Isotope ◽  
Oceanic Anoxic Event ◽  
Basin Scale ◽  
Oceanic Anoxic Event 2 ◽  
Anoxic Event

scholarly journals Isotopic evidence for changes in the zinc cycle during Oceanic Anoxic Event 2 (Late Cretaceous)

Geology ◽  
2018 ◽  
Vol 46 (5) ◽  
pp. 463-466 ◽  
Author(s):  
Tim C. Sweere ◽  
Alexander J. Dickson ◽  
Hugh C. Jenkyns ◽  
Don Porcelli ◽  
Maya Elrick ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Oceanic Anoxic Event ◽  
Isotopic Evidence ◽  
Oceanic Anoxic Event 2 ◽  
Anoxic Event

Contemporaneous massive subaerial volcanism and late cretaceous Oceanic Anoxic Event 2

2007 ◽  
Vol 256 (1-2) ◽  
pp. 211-223 ◽  
Author(s):  
J KURODA ◽  
N OGAWA ◽  
M TANIMIZU ◽  
M COFFIN ◽  
H TOKUYAMA ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Oceanic Anoxic Event ◽  
Oceanic Anoxic Event 2 ◽  
Anoxic Event

scholarly journals Late Cretaceous marine biodiversity dynamics in the Eastern Caucasus, northern Neo-Tethys ocean: Regional imprints of global events

2011 ◽  
pp. 29-46 ◽  
Author(s):  
Dmitry Ruban ◽  
Astrid Forster ◽  
Delphine Desmares
Keyword(s):  
Late Cretaceous ◽  
Oxygen Depletion ◽  
Marine Biodiversity ◽  
Oceanic Anoxic Event ◽  
Oceanic Anoxic Event 2 ◽  
Anoxic Event ◽  
Global Events ◽  
Stratigraphic Ranges ◽  
Tethys Ocean

During the Late Cretaceous, marine organisms experienced significant changes in their biodiversity. These diversity changes were influenced, particularly, by the Oceanic Anoxic Event 2 near the Cenomanian/Turonian boundary (93.6 Ma). Here, stratigraphic ranges of 80 marine macroinvertebrate genera (cephalopods, brachiopods, gastropods, corals, and echinoids) were employed to assess the Late Cretaceous biodiversity dynamics in the Eastern Caucasus, which covered a large region located in the northern Neo-Tethys Ocean. Our results outline three prominent diversity minima, which occurred in the late Cenomanian-late Turonian, the early Santonian-late Campanian, and the late Maastrichtian. Probably, the latter two were just local. Despite of some differences in trends between the regional and global marine biodiversity dynamics, the late Cenomanian-late Turonian biotic crisis appeared both on the regional and global scales and was probably a long-term consequence of the Oceanic Anoxic Event 2. Oxygen depletion and eustaticallydriven shoreline shifts are considered as plausible causes of the observed biodiversity dynamics.

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