(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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PANGAEA - Publishing Network for Geoscientific and Environmental Data
1987
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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 |