Flores, Jose Abel; Sierro, Francisco Javier; de Pablo, Fernando (1995): Control orbital del flujo de cocolitoforidos durante el Plioceno superior en el Pacifico ecuatorial (ODP Leg 138) Upper Pliocene orbital forcing of Coccolithophoraceae in the Equatorial Pacific (ODP Leg 138). Sociedad Espanola de Paleontologia, Madrid, Spain, In: Lamolda, Marcos A. (editor), Numero homenaje al Dr. Guillermo Colom Issue to honor Dr. Guillermo Colom, 1995 (Homenaje al Dr. Guillermo Colom), 69-76, georefid:2007-056363

Abstract:
From the coccolith flux estimation in two eastern equatorial Pacific sites (ODP Site 849 and 852, Leg 138), a spectral analysis was carried out in order to detect some periodicity related to the Milankovitch frequencies. The studied interval in the upper Pliocene (4 to 2 Ma) was divided into two periods: between 4 and 3.2 Ma, and between 3.2 and 2 Ma. The reentry of Coccolithus pelagicus at 3.2 Ma was used to define the boundary between both intervals. Site 849, located in a region of oceanographic divergence, shows lower coccolith fluxes than Site 852, located in the convergence area; however, in both sites, the coccolith flux distribution was mainly controlled by precession and obliquity. The eccentricity frequencies are weakly defined.
Coverage:
West: -110.3111 East: -110.0432 North: 5.1734 South: .1058
Relations:
Expedition: 138
Site: 138-849
Site: 138-852
Data access:
Provider: SEDIS Publication Catalogue
Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=2007-056363 (c.f. for more detailed metadata)
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