Radiolaria abundance and faunal indices of ODP Hole 183-1138A, Kerguelen Plateau
Three sites from Ocean Drilling Program (ODP) Leg 183 (Kerguelen Plateau) have been analyzed to document faunal change in high-latitude radiolarians and to compare the faunal change to Eocene-Oligocene climatic deterioration. Radiolarians are not preserved in Eocene sediments. In Oligocene sediments...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.785250 2024-09-15T18:37:17+00:00 Radiolaria abundance and faunal indices of ODP Hole 183-1138A, Kerguelen Plateau Apel, Marcus Kiessling, Wolfgang Böhm, Florian Lazarus, David B LATITUDE: -53.551750 * LONGITUDE: 75.974880 * DATE/TIME START: 1999-01-07T23:30:00 * DATE/TIME END: 1999-01-31T06:15:00 2002 application/zip, 2 datasets https://doi.pangaea.de/10.1594/PANGAEA.785250 https://doi.org/10.1594/PANGAEA.785250 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.785250 https://doi.org/10.1594/PANGAEA.785250 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Apel, Marcus; Kiessling, Wolfgang; Böhm, Florian; Lazarus, David B (2002): Radiolarian faunal characteristics in Oligocene sediments of the Kerguelen Plateau, Leg 183, Site 1138. In: Frey, FA; Coffin, MF; Wallace, PJ; Quilty, PG (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 183, 1-48, https://doi.org/10.2973/odp.proc.sr.183.002.2002 183-1138A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg183 Ocean Drilling Program ODP dataset publication series 2002 ftpangaea https://doi.org/10.1594/PANGAEA.78525010.2973/odp.proc.sr.183.002.2002 2024-07-24T02:31:21Z Three sites from Ocean Drilling Program (ODP) Leg 183 (Kerguelen Plateau) have been analyzed to document faunal change in high-latitude radiolarians and to compare the faunal change to Eocene-Oligocene climatic deterioration. Radiolarians are not preserved in Eocene sediments. In Oligocene sediments, radiolarian preservation improves in a stepwise manner toward the Miocene. A total of 115 species were found in lower Oligocene samples from Site 1138; all are documented herein. Radiolarian preservation is presumably linked to productivity triggered by climatic cooling during the early Oligocene. Similar patterns of improving preservation through the Eocene/Oligocene boundary are documented from several Deep Sea Drilling Project and ODP sites in the Southern Ocean, indicating a general pattern. In contrast to the Southern Kerguelen Plateau, however, proxies for productivity are more divergent at Site 1138 (Central Kerguelen Plateau). Whereas carbonate dissolution, as indicated by poor preservation of foraminifers and common hiatuses, is very pronounced in the upper Eocene-lowermost Oligocene, the quality of radiolarian and diatom preservation does not significantly increase until the uppermost lower Oligocene. Multiple measures of radiolarian diversity in the Oligocene from Site 1138 closely parallel radiolarian preservation, indicating that preserved radiolarian diversity is controlled by productivity. Other/Unknown Material Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(75.974880,75.974880,-53.551750,-53.551750) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
183-1138A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg183 Ocean Drilling Program ODP |
spellingShingle |
183-1138A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg183 Ocean Drilling Program ODP Apel, Marcus Kiessling, Wolfgang Böhm, Florian Lazarus, David B Radiolaria abundance and faunal indices of ODP Hole 183-1138A, Kerguelen Plateau |
topic_facet |
183-1138A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg183 Ocean Drilling Program ODP |
description |
Three sites from Ocean Drilling Program (ODP) Leg 183 (Kerguelen Plateau) have been analyzed to document faunal change in high-latitude radiolarians and to compare the faunal change to Eocene-Oligocene climatic deterioration. Radiolarians are not preserved in Eocene sediments. In Oligocene sediments, radiolarian preservation improves in a stepwise manner toward the Miocene. A total of 115 species were found in lower Oligocene samples from Site 1138; all are documented herein. Radiolarian preservation is presumably linked to productivity triggered by climatic cooling during the early Oligocene. Similar patterns of improving preservation through the Eocene/Oligocene boundary are documented from several Deep Sea Drilling Project and ODP sites in the Southern Ocean, indicating a general pattern. In contrast to the Southern Kerguelen Plateau, however, proxies for productivity are more divergent at Site 1138 (Central Kerguelen Plateau). Whereas carbonate dissolution, as indicated by poor preservation of foraminifers and common hiatuses, is very pronounced in the upper Eocene-lowermost Oligocene, the quality of radiolarian and diatom preservation does not significantly increase until the uppermost lower Oligocene. Multiple measures of radiolarian diversity in the Oligocene from Site 1138 closely parallel radiolarian preservation, indicating that preserved radiolarian diversity is controlled by productivity. |
format |
Other/Unknown Material |
author |
Apel, Marcus Kiessling, Wolfgang Böhm, Florian Lazarus, David B |
author_facet |
Apel, Marcus Kiessling, Wolfgang Böhm, Florian Lazarus, David B |
author_sort |
Apel, Marcus |
title |
Radiolaria abundance and faunal indices of ODP Hole 183-1138A, Kerguelen Plateau |
title_short |
Radiolaria abundance and faunal indices of ODP Hole 183-1138A, Kerguelen Plateau |
title_full |
Radiolaria abundance and faunal indices of ODP Hole 183-1138A, Kerguelen Plateau |
title_fullStr |
Radiolaria abundance and faunal indices of ODP Hole 183-1138A, Kerguelen Plateau |
title_full_unstemmed |
Radiolaria abundance and faunal indices of ODP Hole 183-1138A, Kerguelen Plateau |
title_sort |
radiolaria abundance and faunal indices of odp hole 183-1138a, kerguelen plateau |
publisher |
PANGAEA |
publishDate |
2002 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.785250 https://doi.org/10.1594/PANGAEA.785250 |
op_coverage |
LATITUDE: -53.551750 * LONGITUDE: 75.974880 * DATE/TIME START: 1999-01-07T23:30:00 * DATE/TIME END: 1999-01-31T06:15:00 |
long_lat |
ENVELOPE(75.974880,75.974880,-53.551750,-53.551750) |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
Supplement to: Apel, Marcus; Kiessling, Wolfgang; Böhm, Florian; Lazarus, David B (2002): Radiolarian faunal characteristics in Oligocene sediments of the Kerguelen Plateau, Leg 183, Site 1138. In: Frey, FA; Coffin, MF; Wallace, PJ; Quilty, PG (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 183, 1-48, https://doi.org/10.2973/odp.proc.sr.183.002.2002 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.785250 https://doi.org/10.1594/PANGAEA.785250 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.78525010.2973/odp.proc.sr.183.002.2002 |
_version_ |
1810481654067625984 |