Planktonic foraminiferal assemblages of the Paleocene-Eocene Thermal Maximum of ODP Hole 113-690B
High-resolution study of Antarctic planktonic foraminiferal assemblages (Ocean Drilling Program Site 690, Weddell Sea) shows that these microplankton underwent a stepwise series of changes during the Paleocene–Eocene thermal maximum (PETM). Initiation of this response coincides with the onset of the...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.842889 2023-05-15T14:03:04+02:00 Planktonic foraminiferal assemblages of the Paleocene-Eocene Thermal Maximum of ODP Hole 113-690B Kelly, Daniel Clay LATITUDE: -65.161000 * LONGITUDE: 1.204900 * DATE/TIME START: 1987-01-20T03:15:00 * DATE/TIME END: 1987-01-21T07:00:00 * MINIMUM DEPTH, sediment/rock: 166.92 m * MAXIMUM DEPTH, sediment/rock: 170.93 m 2002-02-18 text/tab-separated-values, 885 data points https://doi.pangaea.de/10.1594/PANGAEA.842889 https://doi.org/10.1594/PANGAEA.842889 en eng PANGAEA Kelly, Daniel Clay (2002): NOAA/WDS Paleoclimatology - Paleocene-Eocene Thermal Maximum (~55 Million years ago ) Planktonic Foram Assemblages. NOAA National Centers for Environmental Information, https://doi.org/10.25921/YP4H-5259 https://doi.pangaea.de/10.1594/PANGAEA.842889 https://doi.org/10.1594/PANGAEA.842889 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Kelly, Daniel Clay (2002): Response of Antarctic (ODP Site 690) planktonic foraminifera to the Paleocene-Eocene thermal maximum: Faunal evidence for ocean/climate change. Paleoceanography, 17(4), 1071, https://doi.org/10.1029/2002PA000761 113-690B Acarinina coalingensis Acarinina mckannai Acarinina nitida Acarinina praepentacamerata Acarinina soldadoensis Acarinina spp. Acarinina subsphaerica Alabamina wilcoxensis Chiloguembelina trinitatensis Counting >180 µm fraction DEPTH sediment/rock DRILL Drilling/drill rig Foraminifera planktic Globanomalina australiformis Joides Resolution Leg113 Morozovella spp. Ocean Drilling Program ODP Parasubbotina varianta South Atlantic Ocean Subbotina patagonica Subbotina spp Dataset 2002 ftpangaea https://doi.org/10.1594/PANGAEA.842889 https://doi.org/10.1029/2002PA000761 https://doi.org/10.25921/YP4H-5259 2023-01-20T09:05:18Z High-resolution study of Antarctic planktonic foraminiferal assemblages (Ocean Drilling Program Site 690, Weddell Sea) shows that these microplankton underwent a stepwise series of changes during the Paleocene–Eocene thermal maximum (PETM). Initiation of this response coincides with the onset of the carbon isotope excursion (CIE) but precedes the benthic foraminiferal mass extinction. The “top-to-bottom” succession in the biotic response indicates that the surface ocean/atmosphere was affected before the deep sea. The earliest stage of the faunal response entailed a conspicuous turnover within the shallow-dwelling genus Acarinina and a succession of stratigraphic first appearances. The genus Morozovella, large (>180 µm) biserial planktonics, and A. wilcoxensis are all restricted to the lower CIE within this PETM section. Acarininid populations crashed as the ocean/climate system ameliorated during the CIE recovery, reflecting atypical surface water conditions. This transient decline in acarininids is paralleled by a marked increase in carbonate content of sediments. It is postulated that this interval of carbonate enrichment, and its unusual microfauna, reflects enhanced carbon storage within reservoirs of the global carbon cycle other than the marine carbonate system (sensu Broecker et al., 1993, doi:10.1029/93PA00423; Ravizza et al., 2001, doi:10.1029/2000PA000541). Dataset Antarc* Antarctic South Atlantic Ocean Weddell Sea PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Weddell Sea Weddell ENVELOPE(1.204900,1.204900,-65.161000,-65.161000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
113-690B Acarinina coalingensis Acarinina mckannai Acarinina nitida Acarinina praepentacamerata Acarinina soldadoensis Acarinina spp. Acarinina subsphaerica Alabamina wilcoxensis Chiloguembelina trinitatensis Counting >180 µm fraction DEPTH sediment/rock DRILL Drilling/drill rig Foraminifera planktic Globanomalina australiformis Joides Resolution Leg113 Morozovella spp. Ocean Drilling Program ODP Parasubbotina varianta South Atlantic Ocean Subbotina patagonica Subbotina spp |
spellingShingle |
113-690B Acarinina coalingensis Acarinina mckannai Acarinina nitida Acarinina praepentacamerata Acarinina soldadoensis Acarinina spp. Acarinina subsphaerica Alabamina wilcoxensis Chiloguembelina trinitatensis Counting >180 µm fraction DEPTH sediment/rock DRILL Drilling/drill rig Foraminifera planktic Globanomalina australiformis Joides Resolution Leg113 Morozovella spp. Ocean Drilling Program ODP Parasubbotina varianta South Atlantic Ocean Subbotina patagonica Subbotina spp Kelly, Daniel Clay Planktonic foraminiferal assemblages of the Paleocene-Eocene Thermal Maximum of ODP Hole 113-690B |
topic_facet |
113-690B Acarinina coalingensis Acarinina mckannai Acarinina nitida Acarinina praepentacamerata Acarinina soldadoensis Acarinina spp. Acarinina subsphaerica Alabamina wilcoxensis Chiloguembelina trinitatensis Counting >180 µm fraction DEPTH sediment/rock DRILL Drilling/drill rig Foraminifera planktic Globanomalina australiformis Joides Resolution Leg113 Morozovella spp. Ocean Drilling Program ODP Parasubbotina varianta South Atlantic Ocean Subbotina patagonica Subbotina spp |
description |
High-resolution study of Antarctic planktonic foraminiferal assemblages (Ocean Drilling Program Site 690, Weddell Sea) shows that these microplankton underwent a stepwise series of changes during the Paleocene–Eocene thermal maximum (PETM). Initiation of this response coincides with the onset of the carbon isotope excursion (CIE) but precedes the benthic foraminiferal mass extinction. The “top-to-bottom” succession in the biotic response indicates that the surface ocean/atmosphere was affected before the deep sea. The earliest stage of the faunal response entailed a conspicuous turnover within the shallow-dwelling genus Acarinina and a succession of stratigraphic first appearances. The genus Morozovella, large (>180 µm) biserial planktonics, and A. wilcoxensis are all restricted to the lower CIE within this PETM section. Acarininid populations crashed as the ocean/climate system ameliorated during the CIE recovery, reflecting atypical surface water conditions. This transient decline in acarininids is paralleled by a marked increase in carbonate content of sediments. It is postulated that this interval of carbonate enrichment, and its unusual microfauna, reflects enhanced carbon storage within reservoirs of the global carbon cycle other than the marine carbonate system (sensu Broecker et al., 1993, doi:10.1029/93PA00423; Ravizza et al., 2001, doi:10.1029/2000PA000541). |
format |
Dataset |
author |
Kelly, Daniel Clay |
author_facet |
Kelly, Daniel Clay |
author_sort |
Kelly, Daniel Clay |
title |
Planktonic foraminiferal assemblages of the Paleocene-Eocene Thermal Maximum of ODP Hole 113-690B |
title_short |
Planktonic foraminiferal assemblages of the Paleocene-Eocene Thermal Maximum of ODP Hole 113-690B |
title_full |
Planktonic foraminiferal assemblages of the Paleocene-Eocene Thermal Maximum of ODP Hole 113-690B |
title_fullStr |
Planktonic foraminiferal assemblages of the Paleocene-Eocene Thermal Maximum of ODP Hole 113-690B |
title_full_unstemmed |
Planktonic foraminiferal assemblages of the Paleocene-Eocene Thermal Maximum of ODP Hole 113-690B |
title_sort |
planktonic foraminiferal assemblages of the paleocene-eocene thermal maximum of odp hole 113-690b |
publisher |
PANGAEA |
publishDate |
2002 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.842889 https://doi.org/10.1594/PANGAEA.842889 |
op_coverage |
LATITUDE: -65.161000 * LONGITUDE: 1.204900 * DATE/TIME START: 1987-01-20T03:15:00 * DATE/TIME END: 1987-01-21T07:00:00 * MINIMUM DEPTH, sediment/rock: 166.92 m * MAXIMUM DEPTH, sediment/rock: 170.93 m |
long_lat |
ENVELOPE(1.204900,1.204900,-65.161000,-65.161000) |
geographic |
Antarctic Weddell Sea Weddell |
geographic_facet |
Antarctic Weddell Sea Weddell |
genre |
Antarc* Antarctic South Atlantic Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic South Atlantic Ocean Weddell Sea |
op_source |
Supplement to: Kelly, Daniel Clay (2002): Response of Antarctic (ODP Site 690) planktonic foraminifera to the Paleocene-Eocene thermal maximum: Faunal evidence for ocean/climate change. Paleoceanography, 17(4), 1071, https://doi.org/10.1029/2002PA000761 |
op_relation |
Kelly, Daniel Clay (2002): NOAA/WDS Paleoclimatology - Paleocene-Eocene Thermal Maximum (~55 Million years ago ) Planktonic Foram Assemblages. NOAA National Centers for Environmental Information, https://doi.org/10.25921/YP4H-5259 https://doi.pangaea.de/10.1594/PANGAEA.842889 https://doi.org/10.1594/PANGAEA.842889 |
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.842889 https://doi.org/10.1029/2002PA000761 https://doi.org/10.25921/YP4H-5259 |
_version_ |
1766273568383959040 |