Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic
Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic were investigated for their biostratigraphic and environmental significance. The calcareous planktonic microfauna are of low diversity and are very rare or absent at sites located below the CCD. The sediments recov...
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1991
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.754598 2023-05-15T13:42:10+02:00 Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic Pujol, Claude Bourrouilh, Robert MEDIAN LATITUDE: -47.605300 * MEDIAN LONGITUDE: 3.891695 * SOUTH-BOUND LATITUDE: -52.985000 * WEST-BOUND LONGITUDE: -23.212300 * NORTH-BOUND LATITUDE: -46.879000 * EAST-BOUND LONGITUDE: 7.894700 * DATE/TIME START: 1987-04-04T14:35:00 * DATE/TIME END: 1987-05-03T10:14:00 1991-12-01 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.754598 https://doi.org/10.1594/PANGAEA.754598 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.754598 https://doi.org/10.1594/PANGAEA.754598 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Pujol, Claude; Bourrouilh, Robert (1991): Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic. In: Ciesielski, PF; Kristoffersen, Y; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 114, 217-232, https://doi.org/10.2973/odp.proc.sr.114.129.1991 114-701A 114-701C 114-703A 114-704A 114-704B DRILL Drilling/drill rig Joides Resolution Leg114 Ocean Drilling Program ODP South Atlantic Ocean Dataset 1991 ftpangaea https://doi.org/10.1594/PANGAEA.754598 https://doi.org/10.2973/odp.proc.sr.114.129.1991 2023-01-20T07:31:59Z Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic were investigated for their biostratigraphic and environmental significance. The calcareous planktonic microfauna are of low diversity and are very rare or absent at sites located below the CCD. The sediments recovered from Sites 703 and 704 on the Meteor Rise at about 47°S are useful for biostratigraphic and environmental studies. In the whole sequence 16 species or varieties of planktonic foraminifers were recognized. Two species occur in the uppermost Miocene. In the Pliocene the Globorotalia puncticulata population can be used to separate the early from the late Pliocene. The Pliocene/Quaternary boundary does not appear to be well distinguished in the foraminiferal assemblage. A faunal change noted at 2.5 Ma could correspond to the development of glaciation in the Northern Hemisphere and its Antarctic counterpart. At about 5.2 Ma the first increase in polar fauna near the Meteor Rise occurs. Two other cooling periods are indicated in these sequences at about 4 and 3 Ma. Moreover, the hydrologic environment became more productive at about 2.1 Ma and close to the Brunhes/Matuyama boundary. Dataset Antarc* Antarctic South Atlantic Ocean PANGAEA - Data Publisher for Earth & Environmental Science Antarctic ENVELOPE(-23.212300,7.894700,-46.879000,-52.985000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
114-701A 114-701C 114-703A 114-704A 114-704B DRILL Drilling/drill rig Joides Resolution Leg114 Ocean Drilling Program ODP South Atlantic Ocean |
spellingShingle |
114-701A 114-701C 114-703A 114-704A 114-704B DRILL Drilling/drill rig Joides Resolution Leg114 Ocean Drilling Program ODP South Atlantic Ocean Pujol, Claude Bourrouilh, Robert Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic |
topic_facet |
114-701A 114-701C 114-703A 114-704A 114-704B DRILL Drilling/drill rig Joides Resolution Leg114 Ocean Drilling Program ODP South Atlantic Ocean |
description |
Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic were investigated for their biostratigraphic and environmental significance. The calcareous planktonic microfauna are of low diversity and are very rare or absent at sites located below the CCD. The sediments recovered from Sites 703 and 704 on the Meteor Rise at about 47°S are useful for biostratigraphic and environmental studies. In the whole sequence 16 species or varieties of planktonic foraminifers were recognized. Two species occur in the uppermost Miocene. In the Pliocene the Globorotalia puncticulata population can be used to separate the early from the late Pliocene. The Pliocene/Quaternary boundary does not appear to be well distinguished in the foraminiferal assemblage. A faunal change noted at 2.5 Ma could correspond to the development of glaciation in the Northern Hemisphere and its Antarctic counterpart. At about 5.2 Ma the first increase in polar fauna near the Meteor Rise occurs. Two other cooling periods are indicated in these sequences at about 4 and 3 Ma. Moreover, the hydrologic environment became more productive at about 2.1 Ma and close to the Brunhes/Matuyama boundary. |
format |
Dataset |
author |
Pujol, Claude Bourrouilh, Robert |
author_facet |
Pujol, Claude Bourrouilh, Robert |
author_sort |
Pujol, Claude |
title |
Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic |
title_short |
Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic |
title_full |
Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic |
title_fullStr |
Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic |
title_full_unstemmed |
Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic |
title_sort |
late miocene to holocene planktonic foraminifers from the subantarctic south atlantic |
publisher |
PANGAEA |
publishDate |
1991 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.754598 https://doi.org/10.1594/PANGAEA.754598 |
op_coverage |
MEDIAN LATITUDE: -47.605300 * MEDIAN LONGITUDE: 3.891695 * SOUTH-BOUND LATITUDE: -52.985000 * WEST-BOUND LONGITUDE: -23.212300 * NORTH-BOUND LATITUDE: -46.879000 * EAST-BOUND LONGITUDE: 7.894700 * DATE/TIME START: 1987-04-04T14:35:00 * DATE/TIME END: 1987-05-03T10:14:00 |
long_lat |
ENVELOPE(-23.212300,7.894700,-46.879000,-52.985000) |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic South Atlantic Ocean |
genre_facet |
Antarc* Antarctic South Atlantic Ocean |
op_source |
Supplement to: Pujol, Claude; Bourrouilh, Robert (1991): Late Miocene to Holocene planktonic foraminifers from the subantarctic South Atlantic. In: Ciesielski, PF; Kristoffersen, Y; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 114, 217-232, https://doi.org/10.2973/odp.proc.sr.114.129.1991 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.754598 https://doi.org/10.1594/PANGAEA.754598 |
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.754598 https://doi.org/10.2973/odp.proc.sr.114.129.1991 |
_version_ |
1766163929274253312 |