Pliocene-Pleistocene distribution of benthic foraminifers from ODP Hole 110-672A (Table 2) ...

Site 672 is located on the Atlantic abyssal plain to the east of the Lesser Antilles forearc region. It serves as a stratigraphic reference section for sediments entering the Barbados accretionary prism. A relatively complete Pliocene through lower Pleistocene section was recovered from Site 672 tha...

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Bibliographic Details
Main Author: Murlene W Clark
Format: Dataset
Language:English
Published: PANGAEA - Publishing Network for Geoscientific and Environmental Data 1990
Subjects:
Online Access:https://dx.doi.org/10.15468/aq64ff
https://www.gbif.org/dataset/7d8fa614-f762-11e1-a439-00145eb45e9a
Description
Summary:Site 672 is located on the Atlantic abyssal plain to the east of the Lesser Antilles forearc region. It serves as a stratigraphic reference section for sediments entering the Barbados accretionary prism. A relatively complete Pliocene through lower Pleistocene section was recovered from Site 672 that contains a moderately well-preserved population of benthic foraminifers. Q-mode factor analysis of the benthic population data identified three Pliocene-Pleistocene assemblages that inhabited this site. The Factor 1 fauna, characterized by Nuttallides umboniferus, is commonly associated with the presence of Antarctic Bottom Water (AABW). The Factor 2 assemblage is characterized by Globocassidulina subglobosa, Epistominella exigua, and a combined category of unilocular species. The Factor 3 assemblage is characterized by Epistominella exigua, and Planulina wuellerstorfi. The Factor 2 and 3 faunas are associated with bottom water significantly warmer than that preferred by the Factor 1 assemblage. The distribution ...