Occurrence of planktic foraminifera in Pliocene to Holocene sediments of DSDP Hole 81-552A in the North Atlantic (Appendix 2) ...

A new planktic foraminifer transfer function (GSF18) related 5 North Atlantic assemblages to winter and summer sea surface temperature. GSF18, based on recombined and simplified core top census data, preserves most environmental information and reproduces modern North Atlantic conditions with approx...

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Bibliographic Details
Main Authors: Dowsett, Harry J, Poore, Richard Z
Format: Dataset
Language:English
Published: PANGAEA 1990
Subjects:
Online Access:https://dx.doi.org/10.1594/pangaea.690450
https://doi.pangaea.de/10.1594/PANGAEA.690450
Description
Summary:A new planktic foraminifer transfer function (GSF18) related 5 North Atlantic assemblages to winter and summer sea surface temperature. GSF18, based on recombined and simplified core top census data, preserves most environmental information and reproduces modern North Atlantic conditions with approximately the same accuracy as previous transfer functions, but can be more readily applied to faunal samples ranging in age from Pliocene to Holocene. Transfer function GSF18 has been applied to faunal data from Deep Sea Drilling Project Hole 552A to produce a 2.5 m.y. sea-surface temperature (SST) time series. Estimates show several periods between 2.3 and 4.6 Ma during which mean SST's were both several degrees warmer and several degrees cooler than modern conditions. Between 2.9 and 4.0 Ma SST was generally warmer than modern except for a 250 k.y. interval centered at 3.3 Ma. Maximum SST, with respect to modern conditions, occurred after the cool interval near 3.1 Ma when SST was approximately 3.6° C warmer than ... : Supplement to: Dowsett, Harry J; Poore, Richard Z (1990): A new planktic foraminifer transfer function for estimating Pliocene - Holocene Sea Surface temperatures. Marine Micropaleontology, 16(1-2), 1-23 ...