Calcium carbonate concentrations in Miocene and Pliocene sediments of ODP Hole 120-751A, supplement to: Peirce, John W; Weissel, Jeffrey K; et al. (1989): Proceedings of the Ocean Drilling Program, 120 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 120, 648 pp
Detailed records of % calcium carbonate and calcium carbonate mass accumulation rate (MAR) for Site 751, located on the Southern Kerguelen Plateau, are presented. The shallow-water site contains a Neogene section with well-preserved carbonate sediments. These sediments record variations in the ocean...
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1992
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Online Access: | https://dx.doi.org/10.1594/pangaea.757589 https://doi.pangaea.de/10.1594/PANGAEA.757589 |
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ftdatacite:10.1594/pangaea.757589 2023-05-15T13:47:34+02:00 Calcium carbonate concentrations in Miocene and Pliocene sediments of ODP Hole 120-751A, supplement to: Peirce, John W; Weissel, Jeffrey K; et al. (1989): Proceedings of the Ocean Drilling Program, 120 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 120, 648 pp Wise, Sherwood W Schlich, Roland Et Al. 1992 application/zip https://dx.doi.org/10.1594/pangaea.757589 https://doi.pangaea.de/10.1594/PANGAEA.757589 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.2973/odp.proc.ir.120.1989 https://dx.doi.org/10.2973/odp.proc.sr.120.206.1992 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Drilling/drill rig Leg120 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 1992 ftdatacite https://doi.org/10.1594/pangaea.757589 https://doi.org/10.2973/odp.proc.ir.120.1989 https://doi.org/10.2973/odp.proc.sr.120.206.1992 2022-02-08T16:24:46Z Detailed records of % calcium carbonate and calcium carbonate mass accumulation rate (MAR) for Site 751, located on the Southern Kerguelen Plateau, are presented. The shallow-water site contains a Neogene section with well-preserved carbonate sediments. These sediments record variations in the oceanography of the Antarctic surface waters. Carbonate sedimentation patterns reflect changing modes of biogenic sedimentation in the Miocene and Pliocene Antarctic Ocean.Drilling at Site 751 recovered 166 m of early Miocene to Pleistocene siliceous and calcareous biogenic oozes. Three hiatuses, however, were detected: one between 14.8 and 12 Ma, another between 8.9 and 6.7 Ma, and a third between 5.08 and 5.36 Ma. Sedimentation rates were about 20 m/m.y. throughout the Miocene and <10 m/m.y. during the Pliocene and Pleistocene.Key events in the depositional history are as follows: (1) a dramatic decrease in carbonate content, from 75% to near 0%, near the Miocene/Pliocene boundary; and (2) minima in % carbonate occur at 16.7, 16.3, 12.2, 11.7, and 9.8 Ma. The % carbonate record shows variability about a mean of ~70% and then a sharp drop near the Miocene/Pliocene boundary. The carbonate MAR record, however, exhibits a series of steplike changes throughout the Miocene. The terminal Miocene event in the carbonate MAR record is not as dramatic as in the % carbonate record, as carbonate MARs had already decreased to about 15% of their middle Miocene values. Article in Journal/Newspaper Antarc* Antarctic DataCite Metadata Store (German National Library of Science and Technology) Antarctic Kerguelen The Antarctic |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Drilling/drill rig Leg120 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Drilling/drill rig Leg120 Joides Resolution Ocean Drilling Program ODP Wise, Sherwood W Schlich, Roland Et Al. Calcium carbonate concentrations in Miocene and Pliocene sediments of ODP Hole 120-751A, supplement to: Peirce, John W; Weissel, Jeffrey K; et al. (1989): Proceedings of the Ocean Drilling Program, 120 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 120, 648 pp |
topic_facet |
Drilling/drill rig Leg120 Joides Resolution Ocean Drilling Program ODP |
description |
Detailed records of % calcium carbonate and calcium carbonate mass accumulation rate (MAR) for Site 751, located on the Southern Kerguelen Plateau, are presented. The shallow-water site contains a Neogene section with well-preserved carbonate sediments. These sediments record variations in the oceanography of the Antarctic surface waters. Carbonate sedimentation patterns reflect changing modes of biogenic sedimentation in the Miocene and Pliocene Antarctic Ocean.Drilling at Site 751 recovered 166 m of early Miocene to Pleistocene siliceous and calcareous biogenic oozes. Three hiatuses, however, were detected: one between 14.8 and 12 Ma, another between 8.9 and 6.7 Ma, and a third between 5.08 and 5.36 Ma. Sedimentation rates were about 20 m/m.y. throughout the Miocene and <10 m/m.y. during the Pliocene and Pleistocene.Key events in the depositional history are as follows: (1) a dramatic decrease in carbonate content, from 75% to near 0%, near the Miocene/Pliocene boundary; and (2) minima in % carbonate occur at 16.7, 16.3, 12.2, 11.7, and 9.8 Ma. The % carbonate record shows variability about a mean of ~70% and then a sharp drop near the Miocene/Pliocene boundary. The carbonate MAR record, however, exhibits a series of steplike changes throughout the Miocene. The terminal Miocene event in the carbonate MAR record is not as dramatic as in the % carbonate record, as carbonate MARs had already decreased to about 15% of their middle Miocene values. |
format |
Article in Journal/Newspaper |
author |
Wise, Sherwood W Schlich, Roland Et Al. |
author_facet |
Wise, Sherwood W Schlich, Roland Et Al. |
author_sort |
Wise, Sherwood W |
title |
Calcium carbonate concentrations in Miocene and Pliocene sediments of ODP Hole 120-751A, supplement to: Peirce, John W; Weissel, Jeffrey K; et al. (1989): Proceedings of the Ocean Drilling Program, 120 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 120, 648 pp |
title_short |
Calcium carbonate concentrations in Miocene and Pliocene sediments of ODP Hole 120-751A, supplement to: Peirce, John W; Weissel, Jeffrey K; et al. (1989): Proceedings of the Ocean Drilling Program, 120 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 120, 648 pp |
title_full |
Calcium carbonate concentrations in Miocene and Pliocene sediments of ODP Hole 120-751A, supplement to: Peirce, John W; Weissel, Jeffrey K; et al. (1989): Proceedings of the Ocean Drilling Program, 120 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 120, 648 pp |
title_fullStr |
Calcium carbonate concentrations in Miocene and Pliocene sediments of ODP Hole 120-751A, supplement to: Peirce, John W; Weissel, Jeffrey K; et al. (1989): Proceedings of the Ocean Drilling Program, 120 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 120, 648 pp |
title_full_unstemmed |
Calcium carbonate concentrations in Miocene and Pliocene sediments of ODP Hole 120-751A, supplement to: Peirce, John W; Weissel, Jeffrey K; et al. (1989): Proceedings of the Ocean Drilling Program, 120 Initial Reports. Proceedings of the Ocean Drilling Program, Ocean Drilling Program, 120, 648 pp |
title_sort |
calcium carbonate concentrations in miocene and pliocene sediments of odp hole 120-751a, supplement to: peirce, john w; weissel, jeffrey k; et al. (1989): proceedings of the ocean drilling program, 120 initial reports. proceedings of the ocean drilling program, ocean drilling program, 120, 648 pp |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1992 |
url |
https://dx.doi.org/10.1594/pangaea.757589 https://doi.pangaea.de/10.1594/PANGAEA.757589 |
geographic |
Antarctic Kerguelen The Antarctic |
geographic_facet |
Antarctic Kerguelen The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://dx.doi.org/10.2973/odp.proc.ir.120.1989 https://dx.doi.org/10.2973/odp.proc.sr.120.206.1992 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.757589 https://doi.org/10.2973/odp.proc.ir.120.1989 https://doi.org/10.2973/odp.proc.sr.120.206.1992 |
_version_ |
1766247325191110656 |