Eocene/Oligocene paleoceanography from ODP Hole 113-689B and Hole 113-690B ...
Middle Eocene to Late Oligocene sediments from near the crest (Site 689B, water depth 2080 m) and flank (water depth 2914 m) of the Maud Rise (62°S) have been investigated by coarse fraction analysis and have revealed the following:(1) The middle Eocene (50-40 Ma) was a period of pure carbonate sedi...
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ftdatacite:10.1594/pangaea.759819 2024-09-15T17:47:00+00:00 Eocene/Oligocene paleoceanography from ODP Hole 113-689B and Hole 113-690B ... Diester-Haass, Lieselotte 1991 application/zip https://dx.doi.org/10.1594/pangaea.759819 https://doi.pangaea.de/10.1594/PANGAEA.759819 en eng PANGAEA https://dx.doi.org/10.1016/0025-3227(91)90235-v Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP article Collection Supplementary Publication Series of Datasets 1991 ftdatacite https://doi.org/10.1594/pangaea.75981910.1016/0025-3227(91)90235-v 2024-08-01T10:59:23Z Middle Eocene to Late Oligocene sediments from near the crest (Site 689B, water depth 2080 m) and flank (water depth 2914 m) of the Maud Rise (62°S) have been investigated by coarse fraction analysis and have revealed the following:(1) The middle Eocene (50-40 Ma) was a period of pure carbonate sedimentation, with good preservation of carbonate microfossils. No opal > 40 µm is present.(2) In the late Eocene (40-36.5 Ma) opal fossils (mainly radiolaria, and some diatoms > 40 µm) appeared for the first time. Three maxima in opal sedimentation (Eocene/Oligocene boundary, middle early Oligocene and early/late Oligocene boundary) are separated by increases in carbonate sedimentation. The dissolution of carbonate fossils is strong in the opal-rich layers. Opal sedimentation is attributed to cooling and probably more vigorous atmospheric circulation and increased upwelling.(3) Carbonate dissolution increased with water depth in the Oligocene, whereas in the middle Eocene excellent carbonate preservation in ... : Supplement to: Diester-Haass, Lieselotte (1991): Eocene/Oligocene paleoceanography in the Antarctic Ocean, Atlantic sector (Maud Rise, ODP Leg 113, Site 689B and 690B). Marine Geology, 100(1-4), 249-276 ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean DataCite |
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collection |
DataCite |
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ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP Diester-Haass, Lieselotte Eocene/Oligocene paleoceanography from ODP Hole 113-689B and Hole 113-690B ... |
topic_facet |
Drilling/drill rig Leg113 Joides Resolution Ocean Drilling Program ODP |
description |
Middle Eocene to Late Oligocene sediments from near the crest (Site 689B, water depth 2080 m) and flank (water depth 2914 m) of the Maud Rise (62°S) have been investigated by coarse fraction analysis and have revealed the following:(1) The middle Eocene (50-40 Ma) was a period of pure carbonate sedimentation, with good preservation of carbonate microfossils. No opal > 40 µm is present.(2) In the late Eocene (40-36.5 Ma) opal fossils (mainly radiolaria, and some diatoms > 40 µm) appeared for the first time. Three maxima in opal sedimentation (Eocene/Oligocene boundary, middle early Oligocene and early/late Oligocene boundary) are separated by increases in carbonate sedimentation. The dissolution of carbonate fossils is strong in the opal-rich layers. Opal sedimentation is attributed to cooling and probably more vigorous atmospheric circulation and increased upwelling.(3) Carbonate dissolution increased with water depth in the Oligocene, whereas in the middle Eocene excellent carbonate preservation in ... : Supplement to: Diester-Haass, Lieselotte (1991): Eocene/Oligocene paleoceanography in the Antarctic Ocean, Atlantic sector (Maud Rise, ODP Leg 113, Site 689B and 690B). Marine Geology, 100(1-4), 249-276 ... |
format |
Article in Journal/Newspaper |
author |
Diester-Haass, Lieselotte |
author_facet |
Diester-Haass, Lieselotte |
author_sort |
Diester-Haass, Lieselotte |
title |
Eocene/Oligocene paleoceanography from ODP Hole 113-689B and Hole 113-690B ... |
title_short |
Eocene/Oligocene paleoceanography from ODP Hole 113-689B and Hole 113-690B ... |
title_full |
Eocene/Oligocene paleoceanography from ODP Hole 113-689B and Hole 113-690B ... |
title_fullStr |
Eocene/Oligocene paleoceanography from ODP Hole 113-689B and Hole 113-690B ... |
title_full_unstemmed |
Eocene/Oligocene paleoceanography from ODP Hole 113-689B and Hole 113-690B ... |
title_sort |
eocene/oligocene paleoceanography from odp hole 113-689b and hole 113-690b ... |
publisher |
PANGAEA |
publishDate |
1991 |
url |
https://dx.doi.org/10.1594/pangaea.759819 https://doi.pangaea.de/10.1594/PANGAEA.759819 |
genre |
Antarc* Antarctic Antarctic Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean |
op_relation |
https://dx.doi.org/10.1016/0025-3227(91)90235-v |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_doi |
https://doi.org/10.1594/pangaea.75981910.1016/0025-3227(91)90235-v |
_version_ |
1810495482670088192 |