Latest Cretaceous/Paleocene deep-sea ostracode fauna at IODP Site 342-U1407
During the Paleocene, the plankton community recovered its diversity after a severe diversity loss at the Cretaceous/Paleogene (K/Pg) boundary. In general, changes in Paleocene deep-sea ostracode fauna are poorly understood. It is still unclear how deep-sea ostracode fauna changed during compelling...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.872187 2024-09-15T18:20:21+00:00 Latest Cretaceous/Paleocene deep-sea ostracode fauna at IODP Site 342-U1407 Yamaguchi, Tatsuhiko Bornemann, André Matsui, Hiroki Nishi, Hiroshi MEDIAN LATITUDE: 38.575136 * MEDIAN LONGITUDE: -56.467704 * SOUTH-BOUND LATITUDE: 29.951300 * WEST-BOUND LONGITUDE: -76.626800 * NORTH-BOUND LATITUDE: 41.424980 * EAST-BOUND LONGITUDE: -49.813310 * DATE/TIME START: 1997-02-01T02:00:00 * DATE/TIME END: 1997-02-08T19:30:00 2017 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.872187 https://doi.org/10.1594/PANGAEA.872187 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.872187 https://doi.org/10.1594/PANGAEA.872187 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Yamaguchi, Tatsuhiko; Bornemann, André; Matsui, Hiroki; Nishi, Hiroshi (2017): Latest Cretaceous/Paleocene deep-sea ostracode fauna at IODP Site U1407 (western North Atlantic) with special reference to the Cretaceous/Paleogene boundary and the Latest Danian Event. Marine Micropaleontology, 135, 32-44, https://doi.org/10.1016/j.marmicro.2017.07.003 Integrated Ocean Drilling Program / International Ocean Discovery Program IODP dataset publication series 2017 ftpangaea https://doi.org/10.1594/PANGAEA.87218710.1016/j.marmicro.2017.07.003 2024-07-24T02:31:21Z During the Paleocene, the plankton community recovered its diversity after a severe diversity loss at the Cretaceous/Paleogene (K/Pg) boundary. In general, changes in Paleocene deep-sea ostracode fauna are poorly understood. It is still unclear how deep-sea ostracode fauna changed during compelling events such as the K/Pg boundary (66.04 Ma) and the Latest Danian Event (LDE: ~62.18 Ma), a transient Paleocene warming event. In this report, we describe a study on the latest Cretaceous-late Paleocene ostracodes from Integrated Ocean Drilling Program Site U1407, off Newfoundland, in the northwestern Atlantic. Thirty-four ostracode taxa were obtained from 202 discrete samples that were discretely collected from the interval between 66.3 and 57.3 Ma. Near the K/Pg boundary, 8% (2 of 24) of the Maastrichtian taxa became extinct. The extinction rate is estimated to be at most 0.12 E MSY-1, which is in the same range as the background-level extinction rate. Comparing the extinction rates between different ocean basins, the ostracode extinction at the K/Pg boundary displays striking geographical heterogeneity. Between the Maastrichtian and Danian, the ostracode fauna change from a biofacies dominated by shallow bathyal taxa to one dominated by deep bathyal taxa. During the LDE, ostracode fauna display an increase in their benthic ostracode accumulation rates and taxonomic diversity as well as an increase in the relative abundance of Krithe crassicaudata simultaneously with a decline in carbonate content. A similar change is commonly documented in fauna from the northeastern Atlantic during the Paleocene-Eocene Thermal Maximum (PETM; 56.0 Ma). In contrast to the PETM fauna, an extinction event is not recognized. After the Danian, the ostracode fauna indicate changes in water mass and minor environmental disturbances with possible development of corrosive water. Other/Unknown Material Newfoundland PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-76.626800,-49.813310,41.424980,29.951300) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
spellingShingle |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP Yamaguchi, Tatsuhiko Bornemann, André Matsui, Hiroki Nishi, Hiroshi Latest Cretaceous/Paleocene deep-sea ostracode fauna at IODP Site 342-U1407 |
topic_facet |
Integrated Ocean Drilling Program / International Ocean Discovery Program IODP |
description |
During the Paleocene, the plankton community recovered its diversity after a severe diversity loss at the Cretaceous/Paleogene (K/Pg) boundary. In general, changes in Paleocene deep-sea ostracode fauna are poorly understood. It is still unclear how deep-sea ostracode fauna changed during compelling events such as the K/Pg boundary (66.04 Ma) and the Latest Danian Event (LDE: ~62.18 Ma), a transient Paleocene warming event. In this report, we describe a study on the latest Cretaceous-late Paleocene ostracodes from Integrated Ocean Drilling Program Site U1407, off Newfoundland, in the northwestern Atlantic. Thirty-four ostracode taxa were obtained from 202 discrete samples that were discretely collected from the interval between 66.3 and 57.3 Ma. Near the K/Pg boundary, 8% (2 of 24) of the Maastrichtian taxa became extinct. The extinction rate is estimated to be at most 0.12 E MSY-1, which is in the same range as the background-level extinction rate. Comparing the extinction rates between different ocean basins, the ostracode extinction at the K/Pg boundary displays striking geographical heterogeneity. Between the Maastrichtian and Danian, the ostracode fauna change from a biofacies dominated by shallow bathyal taxa to one dominated by deep bathyal taxa. During the LDE, ostracode fauna display an increase in their benthic ostracode accumulation rates and taxonomic diversity as well as an increase in the relative abundance of Krithe crassicaudata simultaneously with a decline in carbonate content. A similar change is commonly documented in fauna from the northeastern Atlantic during the Paleocene-Eocene Thermal Maximum (PETM; 56.0 Ma). In contrast to the PETM fauna, an extinction event is not recognized. After the Danian, the ostracode fauna indicate changes in water mass and minor environmental disturbances with possible development of corrosive water. |
format |
Other/Unknown Material |
author |
Yamaguchi, Tatsuhiko Bornemann, André Matsui, Hiroki Nishi, Hiroshi |
author_facet |
Yamaguchi, Tatsuhiko Bornemann, André Matsui, Hiroki Nishi, Hiroshi |
author_sort |
Yamaguchi, Tatsuhiko |
title |
Latest Cretaceous/Paleocene deep-sea ostracode fauna at IODP Site 342-U1407 |
title_short |
Latest Cretaceous/Paleocene deep-sea ostracode fauna at IODP Site 342-U1407 |
title_full |
Latest Cretaceous/Paleocene deep-sea ostracode fauna at IODP Site 342-U1407 |
title_fullStr |
Latest Cretaceous/Paleocene deep-sea ostracode fauna at IODP Site 342-U1407 |
title_full_unstemmed |
Latest Cretaceous/Paleocene deep-sea ostracode fauna at IODP Site 342-U1407 |
title_sort |
latest cretaceous/paleocene deep-sea ostracode fauna at iodp site 342-u1407 |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.872187 https://doi.org/10.1594/PANGAEA.872187 |
op_coverage |
MEDIAN LATITUDE: 38.575136 * MEDIAN LONGITUDE: -56.467704 * SOUTH-BOUND LATITUDE: 29.951300 * WEST-BOUND LONGITUDE: -76.626800 * NORTH-BOUND LATITUDE: 41.424980 * EAST-BOUND LONGITUDE: -49.813310 * DATE/TIME START: 1997-02-01T02:00:00 * DATE/TIME END: 1997-02-08T19:30:00 |
long_lat |
ENVELOPE(-76.626800,-49.813310,41.424980,29.951300) |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Supplement to: Yamaguchi, Tatsuhiko; Bornemann, André; Matsui, Hiroki; Nishi, Hiroshi (2017): Latest Cretaceous/Paleocene deep-sea ostracode fauna at IODP Site U1407 (western North Atlantic) with special reference to the Cretaceous/Paleogene boundary and the Latest Danian Event. Marine Micropaleontology, 135, 32-44, https://doi.org/10.1016/j.marmicro.2017.07.003 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.872187 https://doi.org/10.1594/PANGAEA.872187 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.87218710.1016/j.marmicro.2017.07.003 |
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1810458722769567744 |