(Table 1) Planktonic foraminiferal abundance at DSDP Site 94-606

A "total fauna" curve (Ruddiman, 1971; doi:10.1130/0016-7606(1971)82[283:PSITEA]2.0.CO;2) shows that surface water overlying DSDP Site 606 (central North Atlantic Ocean) cooled suddenly at 3.1 Ma, within the Mammoth paleomagnetic reversed interval. At that time, Globorotalia puncticulata,...

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Bibliographic Details
Main Authors: Ehrmann, Lisa M, Keigwin, Lloyd D
Format: Dataset
Language:English
Published: PANGAEA - Publishing Network for Geoscientific and Environmental Data 1987
Subjects:
Neogloboquadrina pachyderma
North Atlantic
Online Access:https://dx.doi.org/10.15468/3w5bku
https://www.gbif.org/dataset/8624044f-443f-4208-8d53-2f406687a857
id ftdatacite:10.15468/3w5bku
record_format openpolar
spelling ftdatacite:10.15468/3w5bku 2023-05-15T17:14:54+02:00 (Table 1) Planktonic foraminiferal abundance at DSDP Site 94-606 Ehrmann, Lisa M Keigwin, Lloyd D 1987 https://dx.doi.org/10.15468/3w5bku https://www.gbif.org/dataset/8624044f-443f-4208-8d53-2f406687a857 en eng PANGAEA - Publishing Network for Geoscientific and Environmental Data https://dx.doi.org/10.1594/pangaea.788610 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY OCCURRENCE Dataset dataset 1987 ftdatacite https://doi.org/10.15468/3w5bku https://doi.org/10.1594/pangaea.788610 2022-04-01T09:01:11Z A "total fauna" curve (Ruddiman, 1971; doi:10.1130/0016-7606(1971)82[283:PSITEA]2.0.CO;2) shows that surface water overlying DSDP Site 606 (central North Atlantic Ocean) cooled suddenly at 3.1 Ma, within the Mammoth paleomagnetic reversed interval. At that time, Globorotalia puncticulata, Neogloboquadrina pachyderma, and Globorotalia crassaformis increased and Globorotalia hirsuta, Globigerinoides sacculifer, and Sphaeroidinellopsis decreased in abundance. Oxygen isotope results for Globigerina bulloides do not indicate a "stepwise" cooling, but probably reflect small changes in continental ice volume. It is hypothesized that as annual average temperatures decreased, G. bulloides delayed its bloom from spring to summer to follow a preferred temperature habitat. Dataset Neogloboquadrina pachyderma North Atlantic DataCite Metadata Store (German National Library of Science and Technology)
institution Open Polar
collection DataCite Metadata Store (German National Library of Science and Technology)
op_collection_id ftdatacite
language English
description A "total fauna" curve (Ruddiman, 1971; doi:10.1130/0016-7606(1971)82[283:PSITEA]2.0.CO;2) shows that surface water overlying DSDP Site 606 (central North Atlantic Ocean) cooled suddenly at 3.1 Ma, within the Mammoth paleomagnetic reversed interval. At that time, Globorotalia puncticulata, Neogloboquadrina pachyderma, and Globorotalia crassaformis increased and Globorotalia hirsuta, Globigerinoides sacculifer, and Sphaeroidinellopsis decreased in abundance. Oxygen isotope results for Globigerina bulloides do not indicate a "stepwise" cooling, but probably reflect small changes in continental ice volume. It is hypothesized that as annual average temperatures decreased, G. bulloides delayed its bloom from spring to summer to follow a preferred temperature habitat.
format Dataset
author Ehrmann, Lisa M
Keigwin, Lloyd D
spellingShingle Ehrmann, Lisa M
Keigwin, Lloyd D
(Table 1) Planktonic foraminiferal abundance at DSDP Site 94-606
author_facet Ehrmann, Lisa M
Keigwin, Lloyd D
author_sort Ehrmann, Lisa M
title (Table 1) Planktonic foraminiferal abundance at DSDP Site 94-606
title_short (Table 1) Planktonic foraminiferal abundance at DSDP Site 94-606
title_full (Table 1) Planktonic foraminiferal abundance at DSDP Site 94-606
title_fullStr (Table 1) Planktonic foraminiferal abundance at DSDP Site 94-606
title_full_unstemmed (Table 1) Planktonic foraminiferal abundance at DSDP Site 94-606
title_sort (table 1) planktonic foraminiferal abundance at dsdp site 94-606
publisher PANGAEA - Publishing Network for Geoscientific and Environmental Data
publishDate 1987
url https://dx.doi.org/10.15468/3w5bku
https://www.gbif.org/dataset/8624044f-443f-4208-8d53-2f406687a857
genre Neogloboquadrina pachyderma
North Atlantic
genre_facet Neogloboquadrina pachyderma
North Atlantic
op_relation https://dx.doi.org/10.1594/pangaea.788610
op_rights Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
cc-by-4.0
op_rightsnorm CC-BY
op_doi https://doi.org/10.15468/3w5bku
https://doi.org/10.1594/pangaea.788610
_version_ 1766072851508494336

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