Exceptionally Well-Preserved Early Oligocene Diatoms from Glacial Sediments of Prydz Bay, East Antarctica
An exceptionally well-preserved early Oligocene diatom assemblage is documented and illustrated from the internal sediment of a gastropod shell, which was collected from glacial sediments recovered at Ocean Drilling Program Site 739 on the continental shelf in Prydx Bay, Antarctica. The diatoms were...
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1993
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ftunivnebraskali:oai:digitalcommons.unl.edu:usgsstaffpub-1266 2023-11-12T04:08:28+01:00 Exceptionally Well-Preserved Early Oligocene Diatoms from Glacial Sediments of Prydz Bay, East Antarctica Barron, John A. Mahood, Albert D. 1993-01-01T08:00:00Z application/pdf https://digitalcommons.unl.edu/usgsstaffpub/266 https://digitalcommons.unl.edu/context/usgsstaffpub/article/1266/viewcontent/Barron_MICROPALEO_1993_Exceptionally_well_preserved.pdf unknown DigitalCommons@University of Nebraska - Lincoln https://digitalcommons.unl.edu/usgsstaffpub/266 https://digitalcommons.unl.edu/context/usgsstaffpub/article/1266/viewcontent/Barron_MICROPALEO_1993_Exceptionally_well_preserved.pdf USGS Staff -- Published Research Earth Sciences text 1993 ftunivnebraskali 2023-10-30T10:44:00Z An exceptionally well-preserved early Oligocene diatom assemblage is documented and illustrated from the internal sediment of a gastropod shell, which was collected from glacial sediments recovered at Ocean Drilling Program Site 739 on the continental shelf in Prydx Bay, Antarctica. The diatoms were deposited between 35.9 and 34.8 Ma according to diatom and calcareous nannofossil stratigraphy, apparently soon after a period of major ice sheet advance across the Prydz Bay continental shelf. The diatom assemblage is neritic in character. but it can readily be correlated with open ocean assemblages from the Southern Ocean as well as with similar material recovered from the CIROS-I drillhole in the Ross Sea. Text Antarc* Antarctica East Antarctica Ice Sheet Prydz Bay Ross Sea Southern Ocean University of Nebraska-Lincoln: DigitalCommons@UNL Southern Ocean East Antarctica Ross Sea Prydz Bay |
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Open Polar |
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University of Nebraska-Lincoln: DigitalCommons@UNL |
op_collection_id |
ftunivnebraskali |
language |
unknown |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Barron, John A. Mahood, Albert D. Exceptionally Well-Preserved Early Oligocene Diatoms from Glacial Sediments of Prydz Bay, East Antarctica |
topic_facet |
Earth Sciences |
description |
An exceptionally well-preserved early Oligocene diatom assemblage is documented and illustrated from the internal sediment of a gastropod shell, which was collected from glacial sediments recovered at Ocean Drilling Program Site 739 on the continental shelf in Prydx Bay, Antarctica. The diatoms were deposited between 35.9 and 34.8 Ma according to diatom and calcareous nannofossil stratigraphy, apparently soon after a period of major ice sheet advance across the Prydz Bay continental shelf. The diatom assemblage is neritic in character. but it can readily be correlated with open ocean assemblages from the Southern Ocean as well as with similar material recovered from the CIROS-I drillhole in the Ross Sea. |
format |
Text |
author |
Barron, John A. Mahood, Albert D. |
author_facet |
Barron, John A. Mahood, Albert D. |
author_sort |
Barron, John A. |
title |
Exceptionally Well-Preserved Early Oligocene Diatoms from Glacial Sediments of Prydz Bay, East Antarctica |
title_short |
Exceptionally Well-Preserved Early Oligocene Diatoms from Glacial Sediments of Prydz Bay, East Antarctica |
title_full |
Exceptionally Well-Preserved Early Oligocene Diatoms from Glacial Sediments of Prydz Bay, East Antarctica |
title_fullStr |
Exceptionally Well-Preserved Early Oligocene Diatoms from Glacial Sediments of Prydz Bay, East Antarctica |
title_full_unstemmed |
Exceptionally Well-Preserved Early Oligocene Diatoms from Glacial Sediments of Prydz Bay, East Antarctica |
title_sort |
exceptionally well-preserved early oligocene diatoms from glacial sediments of prydz bay, east antarctica |
publisher |
DigitalCommons@University of Nebraska - Lincoln |
publishDate |
1993 |
url |
https://digitalcommons.unl.edu/usgsstaffpub/266 https://digitalcommons.unl.edu/context/usgsstaffpub/article/1266/viewcontent/Barron_MICROPALEO_1993_Exceptionally_well_preserved.pdf |
geographic |
Southern Ocean East Antarctica Ross Sea Prydz Bay |
geographic_facet |
Southern Ocean East Antarctica Ross Sea Prydz Bay |
genre |
Antarc* Antarctica East Antarctica Ice Sheet Prydz Bay Ross Sea Southern Ocean |
genre_facet |
Antarc* Antarctica East Antarctica Ice Sheet Prydz Bay Ross Sea Southern Ocean |
op_source |
USGS Staff -- Published Research |
op_relation |
https://digitalcommons.unl.edu/usgsstaffpub/266 https://digitalcommons.unl.edu/context/usgsstaffpub/article/1266/viewcontent/Barron_MICROPALEO_1993_Exceptionally_well_preserved.pdf |
_version_ |
1782328767133253632 |