georefid:2000-031863SEDIS Publication Catalogueana.macario@awi.dehttp://sedis.iodp.org/pub-catalogue/informationpointOfContact2011-06-23T00:00:00Zhttp://sedis.iodp.org/pub-catalogue/index.php?id=2000-031863<gco:CharacterString>Trophic models for the well-mixed and poorly mixed warm oceans across the Paleocene/Eocene epoch boundary</gco:CharacterString>1998-01-01publicationgeorefid:2000-031863Boersma, AnneMicroclimates, Pomona, NY, United StatesauthorPremoli Silva, IsabellaNew Mexico Museum of Natural History, United StatesauthorHallock, PamelaWoods Hole Oceanographic Institution, United StatesauthorColumbia University Press, New York, NY, United StatespublisherdocumentHardcopyIn: Aubry, Marie-Pierre (editor), Lucas, Spencer G. (editor), Berggren, William A. (editor), Late Paleocene-early Eocene climatic and biotic events in the marine and terrestrial records204-213Models of the trophic resource continuum (TRC) predict aspects of nutrient cycling and oceanic circulation across the Paleocene/Eocene Epoch boundary. The abundance, diversity, and areal extent of oligotrophic planktonic foraminifera combined with the presence, but geographic compartmentalization of eutrophic planktonic foraminifera indicate the expansion of the TRC from late Paleocene to early Eocene time. Because development of oligotrophic habitats is maximal under poorly mixed conditions, we infer decreased intensity of oceanic mixing through the thermocline across the Paleocene/Eocene Epoch boundary.completedStratigraphyCenozoicEoceneForaminiferahabitatInvertebratamarine environmentmicrofossilsnutrientsocean circulationpaleo-oceanographyPaleocenePaleocene-Eocene boundaryPaleogeneplanktonic taxaProtistasea-level changessea-surface temperaturespecies diversitystratigraphic boundaryTertiarytrophic analysisEnglishgeoscientificInformation