Diatom biostratigraphy of the Kerguelen Plateau and Prydz Bay, Southern Ocean
Samples were examined for diatoms from 22 holes at 11 sites cored by ODP Leg 119 on the Kerguelen Plateau and in Prydz Bay, East Antarctica. Diatoms were observed in Oligocene through Holocene sediments recovered from the Kerguelen Plateau. The diatom flora from the Kerguelen Plateau is characterize...
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1991
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.728491 2023-05-15T13:42:09+02:00 Diatom biostratigraphy of the Kerguelen Plateau and Prydz Bay, Southern Ocean Baldauf, Jack G Barron, John A MEDIAN LATITUDE: -57.244214 * MEDIAN LONGITUDE: 78.809057 * SOUTH-BOUND LATITUDE: -67.285000 * WEST-BOUND LONGITUDE: 71.661500 * NORTH-BOUND LATITUDE: -49.403000 * EAST-BOUND LONGITUDE: 85.868200 * DATE/TIME START: 1987-12-26T02:30:00 * DATE/TIME END: 1988-02-12T18:00:00 1991-10-12 application/zip, 14 datasets https://doi.pangaea.de/10.1594/PANGAEA.728491 https://doi.org/10.1594/PANGAEA.728491 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.728491 https://doi.org/10.1594/PANGAEA.728491 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Baldauf, Jack G; Barron, John A (1991): Diatom biostratigraphy: Kerguelen Plateau and Prydz Bay regions of the Southern Ocean. In: Barron, J; Larsen, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 119, 547-598, https://doi.org/10.2973/odp.proc.sr.119.135.1991 119-736A 119-736C 119-737A 119-737B 119-739C 119-744A 119-744B 119-745B 119-746A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg119 Ocean Drilling Program ODP Prydz Bay South Indian Ridge South Indian Ocean Dataset 1991 ftpangaea https://doi.org/10.1594/PANGAEA.728491 https://doi.org/10.2973/odp.proc.sr.119.135.1991 2023-01-20T07:31:33Z Samples were examined for diatoms from 22 holes at 11 sites cored by ODP Leg 119 on the Kerguelen Plateau and in Prydz Bay, East Antarctica. Diatoms were observed in Oligocene through Holocene sediments recovered from the Kerguelen Plateau. The diatom flora from the Kerguelen Plateau is characterized by species such as Azpeitia oligocenica, Rocella gelida, Rocella vigilans, and Synedra jouseana in the Oligocene and Crucidenticula nicobarica, Denticulopsis hustedtii, Nitzschia miocenica, and Thalassiosira miocenica in the Miocene. This somewhat cosmopolitan assemblage gives way to a Pliocene and Holocene assemblage characterized by species such as Nitzschia kerguelensis, Thalassiosira inura, and Thalassiosira torokina, which are endemic to the Southern Ocean region. Samples examined from Prydz Bay are generally devoid of diatoms. The exception is Site 739, where diatoms occur sporadically in lower Oligocene and upper Miocene through Quaternary sediments. The Leg 119 diatom biostratigraphic results allow the development of a stratigraphic framework for the Indian sector of the Southern Ocean. This diatom zonation integrates diatom zonations developed previously for other sectors of the Southern Ocean. The zonation proposed here is based on biostratigraphic events of both geographically widespread and endemic species calibrated to the paleomagnetic stratigraphy. As such, this zonation has application throughout the Southern Ocean and allows correlation from the southern high latitudes to the low latitudes. Dataset Antarc* Antarctica East Antarctica Prydz Bay Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Southern Ocean East Antarctica Kerguelen Prydz Bay Indian ENVELOPE(71.661500,85.868200,-49.403000,-67.285000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
119-736A 119-736C 119-737A 119-737B 119-739C 119-744A 119-744B 119-745B 119-746A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg119 Ocean Drilling Program ODP Prydz Bay South Indian Ridge South Indian Ocean |
spellingShingle |
119-736A 119-736C 119-737A 119-737B 119-739C 119-744A 119-744B 119-745B 119-746A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg119 Ocean Drilling Program ODP Prydz Bay South Indian Ridge South Indian Ocean Baldauf, Jack G Barron, John A Diatom biostratigraphy of the Kerguelen Plateau and Prydz Bay, Southern Ocean |
topic_facet |
119-736A 119-736C 119-737A 119-737B 119-739C 119-744A 119-744B 119-745B 119-746A DRILL Drilling/drill rig Indian Ocean Joides Resolution Leg119 Ocean Drilling Program ODP Prydz Bay South Indian Ridge South Indian Ocean |
description |
Samples were examined for diatoms from 22 holes at 11 sites cored by ODP Leg 119 on the Kerguelen Plateau and in Prydz Bay, East Antarctica. Diatoms were observed in Oligocene through Holocene sediments recovered from the Kerguelen Plateau. The diatom flora from the Kerguelen Plateau is characterized by species such as Azpeitia oligocenica, Rocella gelida, Rocella vigilans, and Synedra jouseana in the Oligocene and Crucidenticula nicobarica, Denticulopsis hustedtii, Nitzschia miocenica, and Thalassiosira miocenica in the Miocene. This somewhat cosmopolitan assemblage gives way to a Pliocene and Holocene assemblage characterized by species such as Nitzschia kerguelensis, Thalassiosira inura, and Thalassiosira torokina, which are endemic to the Southern Ocean region. Samples examined from Prydz Bay are generally devoid of diatoms. The exception is Site 739, where diatoms occur sporadically in lower Oligocene and upper Miocene through Quaternary sediments. The Leg 119 diatom biostratigraphic results allow the development of a stratigraphic framework for the Indian sector of the Southern Ocean. This diatom zonation integrates diatom zonations developed previously for other sectors of the Southern Ocean. The zonation proposed here is based on biostratigraphic events of both geographically widespread and endemic species calibrated to the paleomagnetic stratigraphy. As such, this zonation has application throughout the Southern Ocean and allows correlation from the southern high latitudes to the low latitudes. |
format |
Dataset |
author |
Baldauf, Jack G Barron, John A |
author_facet |
Baldauf, Jack G Barron, John A |
author_sort |
Baldauf, Jack G |
title |
Diatom biostratigraphy of the Kerguelen Plateau and Prydz Bay, Southern Ocean |
title_short |
Diatom biostratigraphy of the Kerguelen Plateau and Prydz Bay, Southern Ocean |
title_full |
Diatom biostratigraphy of the Kerguelen Plateau and Prydz Bay, Southern Ocean |
title_fullStr |
Diatom biostratigraphy of the Kerguelen Plateau and Prydz Bay, Southern Ocean |
title_full_unstemmed |
Diatom biostratigraphy of the Kerguelen Plateau and Prydz Bay, Southern Ocean |
title_sort |
diatom biostratigraphy of the kerguelen plateau and prydz bay, southern ocean |
publisher |
PANGAEA |
publishDate |
1991 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.728491 https://doi.org/10.1594/PANGAEA.728491 |
op_coverage |
MEDIAN LATITUDE: -57.244214 * MEDIAN LONGITUDE: 78.809057 * SOUTH-BOUND LATITUDE: -67.285000 * WEST-BOUND LONGITUDE: 71.661500 * NORTH-BOUND LATITUDE: -49.403000 * EAST-BOUND LONGITUDE: 85.868200 * DATE/TIME START: 1987-12-26T02:30:00 * DATE/TIME END: 1988-02-12T18:00:00 |
long_lat |
ENVELOPE(71.661500,85.868200,-49.403000,-67.285000) |
geographic |
Southern Ocean East Antarctica Kerguelen Prydz Bay Indian |
geographic_facet |
Southern Ocean East Antarctica Kerguelen Prydz Bay Indian |
genre |
Antarc* Antarctica East Antarctica Prydz Bay Southern Ocean |
genre_facet |
Antarc* Antarctica East Antarctica Prydz Bay Southern Ocean |
op_source |
Supplement to: Baldauf, Jack G; Barron, John A (1991): Diatom biostratigraphy: Kerguelen Plateau and Prydz Bay regions of the Southern Ocean. In: Barron, J; Larsen, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 119, 547-598, https://doi.org/10.2973/odp.proc.sr.119.135.1991 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.728491 https://doi.org/10.1594/PANGAEA.728491 |
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.728491 https://doi.org/10.2973/odp.proc.sr.119.135.1991 |
_version_ |
1766163594657923072 |