Upper Cretaceous nannofossils from ODP Leg 120, supplement to: Watkins, David K (1992): Upper Cretaceous nannofossils from Leg 120, Kerguelen Plateau, Southern Ocean. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 343-370
Drilling on the Kerguelen Plateau during Leg 120 cored the most complete, best preserved record of the Late Cretaceous of the Southern Ocean to date. Two calcareous pelagic sedimentary sections (Sites 747 and 750) provide a record from the upper Turonian(?)-lower Coniacian through the Maestrichtian....
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1992
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Online Access: | https://dx.doi.org/10.1594/pangaea.758732 https://doi.pangaea.de/10.1594/PANGAEA.758732 |
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ftdatacite:10.1594/pangaea.758732 2023-05-15T18:24:42+02:00 Upper Cretaceous nannofossils from ODP Leg 120, supplement to: Watkins, David K (1992): Upper Cretaceous nannofossils from Leg 120, Kerguelen Plateau, Southern Ocean. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 343-370 Watkins, David K 1992 application/zip https://dx.doi.org/10.1594/pangaea.758732 https://doi.pangaea.de/10.1594/PANGAEA.758732 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.2973/odp.proc.sr.120.180.1992 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Composite Core Drilling/drill rig Leg120 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 1992 ftdatacite https://doi.org/10.1594/pangaea.758732 https://doi.org/10.2973/odp.proc.sr.120.180.1992 2022-02-08T16:02:21Z Drilling on the Kerguelen Plateau during Leg 120 cored the most complete, best preserved record of the Late Cretaceous of the Southern Ocean to date. Two calcareous pelagic sedimentary sections (Sites 747 and 750) provide a record from the upper Turonian(?)-lower Coniacian through the Maestrichtian. Two major disconformities interrupt the record: upper Coniacian-lower Santonian and mid-Campanian. Site 748 contains a Campanian-Maestrichtian record of neritic sedimentation dominated by nannofossil-bearing, intermittently silicified, glauconitic bioclastic grainstones to wackestones. Parts of the upper Maestrichtian and the mid-Campanian are absent at this site.A set of 21 biostratigraphic events were used to correlate these sections. This combination of cosmopolitan and austral events allowed local, regional, and global correlation. Correlation of this scheme from the pelagic sites to the neritic site indicates the applicability of this system to the sparse, restricted assemblages of the upper Campanian and lower Maestrichtian. Comparison of the Kerguelen assemblages with previous records indicates weak provincialism and little endemism in the Coniacian through early Campanian Southern Ocean. Strong provincial distinction with high endemism is typical of the late Campanian through Maestrichtian. The change from weak to strong provincialism coincides with the mid-Campanian disconformity. The event marked or masked by this disconformity must have involved ecological decoupling of the Southern Ocean from more temperate surface-water masses. A new species, Zeugrhabdotus kerguelenensis, is named. Article in Journal/Newspaper Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Austral Kerguelen Southern Ocean Watkins ENVELOPE(-67.086,-67.086,-66.354,-66.354) |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Composite Core Drilling/drill rig Leg120 Joides Resolution Ocean Drilling Program ODP |
spellingShingle |
Composite Core Drilling/drill rig Leg120 Joides Resolution Ocean Drilling Program ODP Watkins, David K Upper Cretaceous nannofossils from ODP Leg 120, supplement to: Watkins, David K (1992): Upper Cretaceous nannofossils from Leg 120, Kerguelen Plateau, Southern Ocean. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 343-370 |
topic_facet |
Composite Core Drilling/drill rig Leg120 Joides Resolution Ocean Drilling Program ODP |
description |
Drilling on the Kerguelen Plateau during Leg 120 cored the most complete, best preserved record of the Late Cretaceous of the Southern Ocean to date. Two calcareous pelagic sedimentary sections (Sites 747 and 750) provide a record from the upper Turonian(?)-lower Coniacian through the Maestrichtian. Two major disconformities interrupt the record: upper Coniacian-lower Santonian and mid-Campanian. Site 748 contains a Campanian-Maestrichtian record of neritic sedimentation dominated by nannofossil-bearing, intermittently silicified, glauconitic bioclastic grainstones to wackestones. Parts of the upper Maestrichtian and the mid-Campanian are absent at this site.A set of 21 biostratigraphic events were used to correlate these sections. This combination of cosmopolitan and austral events allowed local, regional, and global correlation. Correlation of this scheme from the pelagic sites to the neritic site indicates the applicability of this system to the sparse, restricted assemblages of the upper Campanian and lower Maestrichtian. Comparison of the Kerguelen assemblages with previous records indicates weak provincialism and little endemism in the Coniacian through early Campanian Southern Ocean. Strong provincial distinction with high endemism is typical of the late Campanian through Maestrichtian. The change from weak to strong provincialism coincides with the mid-Campanian disconformity. The event marked or masked by this disconformity must have involved ecological decoupling of the Southern Ocean from more temperate surface-water masses. A new species, Zeugrhabdotus kerguelenensis, is named. |
format |
Article in Journal/Newspaper |
author |
Watkins, David K |
author_facet |
Watkins, David K |
author_sort |
Watkins, David K |
title |
Upper Cretaceous nannofossils from ODP Leg 120, supplement to: Watkins, David K (1992): Upper Cretaceous nannofossils from Leg 120, Kerguelen Plateau, Southern Ocean. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 343-370 |
title_short |
Upper Cretaceous nannofossils from ODP Leg 120, supplement to: Watkins, David K (1992): Upper Cretaceous nannofossils from Leg 120, Kerguelen Plateau, Southern Ocean. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 343-370 |
title_full |
Upper Cretaceous nannofossils from ODP Leg 120, supplement to: Watkins, David K (1992): Upper Cretaceous nannofossils from Leg 120, Kerguelen Plateau, Southern Ocean. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 343-370 |
title_fullStr |
Upper Cretaceous nannofossils from ODP Leg 120, supplement to: Watkins, David K (1992): Upper Cretaceous nannofossils from Leg 120, Kerguelen Plateau, Southern Ocean. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 343-370 |
title_full_unstemmed |
Upper Cretaceous nannofossils from ODP Leg 120, supplement to: Watkins, David K (1992): Upper Cretaceous nannofossils from Leg 120, Kerguelen Plateau, Southern Ocean. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 343-370 |
title_sort |
upper cretaceous nannofossils from odp leg 120, supplement to: watkins, david k (1992): upper cretaceous nannofossils from leg 120, kerguelen plateau, southern ocean. in: wise, sw; schlich, r; et al. (eds.), proceedings of the ocean drilling program, scientific results, college station, tx (ocean drilling program), 120, 343-370 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
1992 |
url |
https://dx.doi.org/10.1594/pangaea.758732 https://doi.pangaea.de/10.1594/PANGAEA.758732 |
long_lat |
ENVELOPE(-67.086,-67.086,-66.354,-66.354) |
geographic |
Austral Kerguelen Southern Ocean Watkins |
geographic_facet |
Austral Kerguelen Southern Ocean Watkins |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
https://dx.doi.org/10.2973/odp.proc.sr.120.180.1992 |
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.758732 https://doi.org/10.2973/odp.proc.sr.120.180.1992 |
_version_ |
1766205517510737920 |