georefid:1999-049368SEDIS Publication Catalogue

ana.macario@awi.de

http://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=10.1029/1998PA9000171999-01-01publicationgeorefid:1999-049368doi:10.1029/1998PA900017Frank, Tracy D.Pennsylvania State University, Department of Geosciences, University Park, PA, United StatesauthorArthur, Michael A.University of Queensland, AustraliaauthorAmerican Geophysical Union, Washington, DC, United StatespublisherdocumentDigitalPaleoceanography14 (2)103-117A global compilation of deep-sea isotopic records suggests that Maastrichtian ocean-climate evolution was tectonically driven. During the early Maastrichtian the Atlantic intermediate-deep ocean was isolated from the Pacific, Indian, and Southern Oceans; deep water formed in the high-latitude North Atlantic and North Pacific. At the early/late Maastrichtian boundary a major reorganization of oceanic circulation patterns occurred, resulting in the development of a thermohaline circulation system similar to that of the modern oceans. A combination of isotopic and plate kinematic data suggests that this event was triggered by the final breaching of tectonic sills in the South Atlantic and the initiation of north-south flow of intermediate and deep water in the Atlantic. The onset of Laramide tectonism during the mid Maastrichtian led to the concurrent draining of major epicontinental seaways. Together, these events caused cooling, increased latitudinal temperature gradients, increased ventilation of the deep ocean, and affected a range of marine biota.completedStratigraphyAntarctic OceanAtlantic OceanbiostratigraphyC-13/C-12carbonchronostratigraphycorescorrelationCretaceousDeep Sea Drilling ProjectForaminiferaIndian OceanInvertebrataisotope ratiosisotopesMaestrichtianMesozoicmicrofossilsO-18/O-16Ocean Drilling ProgramoxygenPacific Oceanpaleo-oceanographypaleocirculationpaleoclimatologypaleocurrentspaleogeographyplate tectonicsProtistaSenonianspecies diversitystable isotopestectonicsthermohaline circulationUpper CretaceousEnglishgeoscientificInformation-80.0000147.0000-60.000075.0000Atlantic OceanIndian Oceanapplication/pdfunknownSEDIS Publication Catalogue

ana.macario@awi.de

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