(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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1987
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.788610 https://doi.org/10.1594/PANGAEA.788610 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.788610 2023-05-15T17:14:53+02:00 (Table 1) Planktonic foraminiferal abundance at DSDP Site 94-606 Ehrmann, Lisa M Keigwin, Lloyd D LATITUDE: 37.338450 * LONGITUDE: -35.500050 * DATE/TIME START: 1983-07-02T00:00:00 * DATE/TIME END: 1983-07-02T00:00:00 * MINIMUM DEPTH, sediment/rock: 102.25 m * MAXIMUM DEPTH, sediment/rock: 106.75 m 1987-09-14 text/tab-separated-values, 396 data points https://doi.pangaea.de/10.1594/PANGAEA.788610 https://doi.org/10.1594/PANGAEA.788610 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.788610 https://doi.org/10.1594/PANGAEA.788610 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Ehrmann, Lisa M; Keigwin, Lloyd D (1987): Middle Pliocene change in planktonic foraminiferal fauna at Site 606. In: Ruddiman, WF; Kidd, RB; Thomas, E; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 94, 921-924, https://doi.org/10.2973/dsdp.proc.94.128.1987 94-606_Site COMPCORE Composite Core Counting >180 µm fraction Deep Sea Drilling Project DEPTH sediment/rock DSDP Foraminifera benthic/planktic ratio planktic planktic indeterminata Fragmentation index planktic foraminifera Globigerina bulloides Globigerina falconensis Globigerina woodi Globigerinella aequilateralis Globigerinita glutinata Globigerinoides cf. ruber Globigerinoides obliquus Globigerinoides sacculifer Globoquadrina altispira Globorotalia crassaformis Globorotalia hirsuta Globorotalia menardii Globorotalia puncticulata Globorotalia scitula Glomar Challenger Leg94 Neogloboquadrina acostaensis Neogloboquadrina pachyderma North Atlantic/FLANK Orbulina sp. Sphaeroidinellopsis spp Dataset 1987 ftpangaea https://doi.org/10.1594/PANGAEA.788610 https://doi.org/10.2973/dsdp.proc.94.128.1987 2023-01-20T08:55:15Z 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 PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-35.500050,-35.500050,37.338450,37.338450) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
94-606_Site COMPCORE Composite Core Counting >180 µm fraction Deep Sea Drilling Project DEPTH sediment/rock DSDP Foraminifera benthic/planktic ratio planktic planktic indeterminata Fragmentation index planktic foraminifera Globigerina bulloides Globigerina falconensis Globigerina woodi Globigerinella aequilateralis Globigerinita glutinata Globigerinoides cf. ruber Globigerinoides obliquus Globigerinoides sacculifer Globoquadrina altispira Globorotalia crassaformis Globorotalia hirsuta Globorotalia menardii Globorotalia puncticulata Globorotalia scitula Glomar Challenger Leg94 Neogloboquadrina acostaensis Neogloboquadrina pachyderma North Atlantic/FLANK Orbulina sp. Sphaeroidinellopsis spp |
spellingShingle |
94-606_Site COMPCORE Composite Core Counting >180 µm fraction Deep Sea Drilling Project DEPTH sediment/rock DSDP Foraminifera benthic/planktic ratio planktic planktic indeterminata Fragmentation index planktic foraminifera Globigerina bulloides Globigerina falconensis Globigerina woodi Globigerinella aequilateralis Globigerinita glutinata Globigerinoides cf. ruber Globigerinoides obliquus Globigerinoides sacculifer Globoquadrina altispira Globorotalia crassaformis Globorotalia hirsuta Globorotalia menardii Globorotalia puncticulata Globorotalia scitula Glomar Challenger Leg94 Neogloboquadrina acostaensis Neogloboquadrina pachyderma North Atlantic/FLANK Orbulina sp. Sphaeroidinellopsis spp Ehrmann, Lisa M Keigwin, Lloyd D (Table 1) Planktonic foraminiferal abundance at DSDP Site 94-606 |
topic_facet |
94-606_Site COMPCORE Composite Core Counting >180 µm fraction Deep Sea Drilling Project DEPTH sediment/rock DSDP Foraminifera benthic/planktic ratio planktic planktic indeterminata Fragmentation index planktic foraminifera Globigerina bulloides Globigerina falconensis Globigerina woodi Globigerinella aequilateralis Globigerinita glutinata Globigerinoides cf. ruber Globigerinoides obliquus Globigerinoides sacculifer Globoquadrina altispira Globorotalia crassaformis Globorotalia hirsuta Globorotalia menardii Globorotalia puncticulata Globorotalia scitula Glomar Challenger Leg94 Neogloboquadrina acostaensis Neogloboquadrina pachyderma North Atlantic/FLANK Orbulina sp. Sphaeroidinellopsis spp |
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 |
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 |
publishDate |
1987 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.788610 https://doi.org/10.1594/PANGAEA.788610 |
op_coverage |
LATITUDE: 37.338450 * LONGITUDE: -35.500050 * DATE/TIME START: 1983-07-02T00:00:00 * DATE/TIME END: 1983-07-02T00:00:00 * MINIMUM DEPTH, sediment/rock: 102.25 m * MAXIMUM DEPTH, sediment/rock: 106.75 m |
long_lat |
ENVELOPE(-35.500050,-35.500050,37.338450,37.338450) |
genre |
Neogloboquadrina pachyderma North Atlantic |
genre_facet |
Neogloboquadrina pachyderma North Atlantic |
op_source |
Supplement to: Ehrmann, Lisa M; Keigwin, Lloyd D (1987): Middle Pliocene change in planktonic foraminiferal fauna at Site 606. In: Ruddiman, WF; Kidd, RB; Thomas, E; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 94, 921-924, https://doi.org/10.2973/dsdp.proc.94.128.1987 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.788610 https://doi.org/10.1594/PANGAEA.788610 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.788610 https://doi.org/10.2973/dsdp.proc.94.128.1987 |
_version_ |
1766072787400654848 |