(Table 1) Ostracode assemblage parameters in sediments of ODP Hole 113-689
During the late Paleocene thermal maximum (ca. 55.50 Ma) mid-bathyal ostracodes at Maud Rise in the Southern Ocean (Ocean Drilling Program Site 689) underwent a sudden, dramatic turnover synchronous with a global extinction in deep-sea benthic foraminifers and with large-scale, short-lived negative...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.712029 2023-05-15T18:21:13+02:00 (Table 1) Ostracode assemblage parameters in sediments of ODP Hole 113-689 Steineck, P Lewis Thomas, E LATITUDE: -64.517000 * LONGITUDE: 3.100150 * DATE/TIME START: 1987-01-15T00:00:00 * DATE/TIME END: 1987-01-19T00:00:00 * MINIMUM DEPTH, sediment/rock: 203.08 m * MAXIMUM DEPTH, sediment/rock: 219.58 m 1996-01-28 text/tab-separated-values, 84 data points https://doi.pangaea.de/10.1594/PANGAEA.712029 https://doi.org/10.1594/PANGAEA.712029 en eng PANGAEA Steineck, P Lewis; Thomas, E (1996): The latest Paleocene crisis in the deep sea: Ostracode succession at Maud Rise, Southern Ocean. Geology, 24(7), 583-586, https://doi.org/10.1130/0091-7613(1996)024%3C0583:TLPCIT%3E2.3.CO;2 https://doi.pangaea.de/10.1594/PANGAEA.712029 https://doi.org/10.1594/PANGAEA.712029 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY 113-689 Age model COMPCORE Composite Core DEPTH sediment/rock Diversity simple DSDP/ODP/IODP sample designation Infauna Joides Resolution Leg113 Ocean Drilling Program ODP Ostracoda Sample optional label/labor no Sample code/label Sample volume South Atlantic Ocean Dataset 1996 ftpangaea https://doi.org/10.1594/PANGAEA.712029 https://doi.org/10.1130/0091-7613(1996)024%3C0583:TLPCIT%3E2.3.CO;2 2023-01-20T08:47:11Z During the late Paleocene thermal maximum (ca. 55.50 Ma) mid-bathyal ostracodes at Maud Rise in the Southern Ocean (Ocean Drilling Program Site 689) underwent a sudden, dramatic turnover synchronous with a global extinction in deep-sea benthic foraminifers and with large-scale, short-lived negative excursions in the stable isotope record of foraminiferal calcite. A previously stable and long-lived ostracode assemblage, dominated by heavily calcified, chiefly epifaunal taxa, was replaced within ~10 k.y. by a taxonomically novel association of small, thin-walled opportunistic and generalist forms that persisted for ~25-40 k.y. Thereafter, ostracode faunas recovered and common bathyal forms returned, although species were smaller and/or less-heavily calcified than before the turnover. The complex fabric of change in ostracode shell morphology and assemblage composition and structure reflects both long-term and sudden perturbations in seawater chemistry at this site. Ostracode data are in agreement with the hypothesis that the latest Paleocene extinctions in the deep sea were caused by a change in the dominant source area of intermediate water mass from high altitudes to the subtropics. These data also suggest that warm saline waters persisted at Maud Rise for the next 100 k.y. Dataset South Atlantic Ocean Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Southern Ocean Maud Rise ENVELOPE(3.000,3.000,-66.000,-66.000) ENVELOPE(3.100150,3.100150,-64.517000,-64.517000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
113-689 Age model COMPCORE Composite Core DEPTH sediment/rock Diversity simple DSDP/ODP/IODP sample designation Infauna Joides Resolution Leg113 Ocean Drilling Program ODP Ostracoda Sample optional label/labor no Sample code/label Sample volume South Atlantic Ocean |
spellingShingle |
113-689 Age model COMPCORE Composite Core DEPTH sediment/rock Diversity simple DSDP/ODP/IODP sample designation Infauna Joides Resolution Leg113 Ocean Drilling Program ODP Ostracoda Sample optional label/labor no Sample code/label Sample volume South Atlantic Ocean Steineck, P Lewis Thomas, E (Table 1) Ostracode assemblage parameters in sediments of ODP Hole 113-689 |
topic_facet |
113-689 Age model COMPCORE Composite Core DEPTH sediment/rock Diversity simple DSDP/ODP/IODP sample designation Infauna Joides Resolution Leg113 Ocean Drilling Program ODP Ostracoda Sample optional label/labor no Sample code/label Sample volume South Atlantic Ocean |
description |
During the late Paleocene thermal maximum (ca. 55.50 Ma) mid-bathyal ostracodes at Maud Rise in the Southern Ocean (Ocean Drilling Program Site 689) underwent a sudden, dramatic turnover synchronous with a global extinction in deep-sea benthic foraminifers and with large-scale, short-lived negative excursions in the stable isotope record of foraminiferal calcite. A previously stable and long-lived ostracode assemblage, dominated by heavily calcified, chiefly epifaunal taxa, was replaced within ~10 k.y. by a taxonomically novel association of small, thin-walled opportunistic and generalist forms that persisted for ~25-40 k.y. Thereafter, ostracode faunas recovered and common bathyal forms returned, although species were smaller and/or less-heavily calcified than before the turnover. The complex fabric of change in ostracode shell morphology and assemblage composition and structure reflects both long-term and sudden perturbations in seawater chemistry at this site. Ostracode data are in agreement with the hypothesis that the latest Paleocene extinctions in the deep sea were caused by a change in the dominant source area of intermediate water mass from high altitudes to the subtropics. These data also suggest that warm saline waters persisted at Maud Rise for the next 100 k.y. |
format |
Dataset |
author |
Steineck, P Lewis Thomas, E |
author_facet |
Steineck, P Lewis Thomas, E |
author_sort |
Steineck, P Lewis |
title |
(Table 1) Ostracode assemblage parameters in sediments of ODP Hole 113-689 |
title_short |
(Table 1) Ostracode assemblage parameters in sediments of ODP Hole 113-689 |
title_full |
(Table 1) Ostracode assemblage parameters in sediments of ODP Hole 113-689 |
title_fullStr |
(Table 1) Ostracode assemblage parameters in sediments of ODP Hole 113-689 |
title_full_unstemmed |
(Table 1) Ostracode assemblage parameters in sediments of ODP Hole 113-689 |
title_sort |
(table 1) ostracode assemblage parameters in sediments of odp hole 113-689 |
publisher |
PANGAEA |
publishDate |
1996 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.712029 https://doi.org/10.1594/PANGAEA.712029 |
op_coverage |
LATITUDE: -64.517000 * LONGITUDE: 3.100150 * DATE/TIME START: 1987-01-15T00:00:00 * DATE/TIME END: 1987-01-19T00:00:00 * MINIMUM DEPTH, sediment/rock: 203.08 m * MAXIMUM DEPTH, sediment/rock: 219.58 m |
long_lat |
ENVELOPE(3.000,3.000,-66.000,-66.000) ENVELOPE(3.100150,3.100150,-64.517000,-64.517000) |
geographic |
Southern Ocean Maud Rise |
geographic_facet |
Southern Ocean Maud Rise |
genre |
South Atlantic Ocean Southern Ocean |
genre_facet |
South Atlantic Ocean Southern Ocean |
op_relation |
Steineck, P Lewis; Thomas, E (1996): The latest Paleocene crisis in the deep sea: Ostracode succession at Maud Rise, Southern Ocean. Geology, 24(7), 583-586, https://doi.org/10.1130/0091-7613(1996)024%3C0583:TLPCIT%3E2.3.CO;2 https://doi.pangaea.de/10.1594/PANGAEA.712029 https://doi.org/10.1594/PANGAEA.712029 |
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.712029 https://doi.org/10.1130/0091-7613(1996)024%3C0583:TLPCIT%3E2.3.CO;2 |
_version_ |
1766200365962756096 |