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Surface and deep water circulation in late Cretaceous North Atlantic greenhouse ocean
(University of Missouri--Columbia, 2009)
carbonate and foraminifera between two Ocean Drilling Program Sites in the subtropical North Atlantic indicate a sharp water mass boundary was a relatively stable and persistent feature of the Maastrichtian North Atlantic despite significant regional warming...
Neodymium and oxygen isotopic constraints on upper Ordovician paleoceanographic evolution across the Dubuque/Maquoketa contact in NE Iowa and SE Minnesota
(University of Missouri--Columbia, 2011)
the Dubuque Fm. Range from -8.6 to -6.5 and they increase to -5.8 to -4.8 in the overlying Maquoketa Fm. Our results are consistent with a paleoceanographic model influenced by sea level rise. The Dubuque and Maquoketa Formations represent a...
Late cretaceous ocean circulation in the south Atlantic and Pacific oceans
(University of Missouri--Columbia, 2019)
[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Cooling during the last 15 million years of the Cretaceous is widely believed to have resulted in a reorganization of ocean circulation, with cooler periods being associated...