Biostratigraphic and paleomagnetic datum levels in sediments from DSDP Site 85-575 ...

Data on the composition of benthic foraminiferal faunas at Deep Sea Drilling Project Site 575 in the eastern equatorial Pacific Ocean were combined with benthic and planktonic carbon- and oxygen-isotope records and CaCO3 data. Changes in the composition of the benthic foraminiferal faunas at Site 57...

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Bibliographic Details
Main Authors: Thomas, Ellen, Vincent, Edith
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 1987
Subjects:
Drilling/drill rig
Leg85
Glomar Challenger
Deep Sea Drilling Project DSDP
Antarc*
Antarctic
Ice cap
Online Access:https://dx.doi.org/10.1594/pangaea.711790
https://doi.pangaea.de/10.1594/PANGAEA.711790
Description
Summary:Data on the composition of benthic foraminiferal faunas at Deep Sea Drilling Project Site 575 in the eastern equatorial Pacific Ocean were combined with benthic and planktonic carbon- and oxygen-isotope records and CaCO3 data. Changes in the composition of the benthic foraminiferal faunas at Site 575 predated the middle Miocene period of growth of the Antarctic ice cap and cooling of the deep ocean waters by about 2 m.y., and thus were not caused by this cooling (as has been proposed). The benthic faunal changes may have been caused by increased variability in corrosivity of the bottom waters, possibly resulting from enhanced productivity in the surface waters. ...

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