Paleoenvironmental change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and planktonic foraminiferal record
Well-dated, high-resolution records of planktonic foraminifera and oxygen isotopes from two sediment cores, A7 and E017, in the middle Okinawa Trough reveal strong and rapid millennial-scale climate changes since similar to 18 to 17 thousand years before present (kyr B.P.). Sedimentation rate shows...
Published in: | Palaeogeography, Palaeoclimatology, Palaeoecology |
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Language: | English |
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Online Access: | http://ir.qdio.ac.cn/handle/337002/5079 https://doi.org/10.1016/j.palaeo.2006.08.016 |
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ftchinacasciocas:oai:ir.qdio.ac.cn:337002/5078 2024-09-15T18:10:12+00:00 Paleoenvironmental change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and planktonic foraminiferal record Xiang, Rong Sun, Youbin Li, Tiegang Oppo, Delia W. Chen, Muhong Zheng, Fan 2007-01-22 http://ir.qdio.ac.cn/handle/337002/5079 https://doi.org/10.1016/j.palaeo.2006.08.016 英语 eng PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY Xiang, Rong; Sun, Youbin; Li, Tiegang; Oppo, Delia W.; Chen, Muhong; Zheng, Fan.Paleoenvironmental change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and planktonic foraminiferal record,PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2007,243(40241):378-393 http://ir.qdio.ac.cn/handle/337002/5079 doi:10.1016/j.palaeo.2006.08.016 Okinawa Trough Last Deglaciation Holocene East Asia Monsoon Planktonic Forarninifera Sedimentation Rate Kuroshio Current Millennial-scale Climate Changes Oxygen Isotope Geography Physical Geosciences Multidisciplinary Paleontology Article 期刊论文 2007 ftchinacasciocas https://doi.org/10.1016/j.palaeo.2006.08.016 2024-08-09T03:18:11Z Well-dated, high-resolution records of planktonic foraminifera and oxygen isotopes from two sediment cores, A7 and E017, in the middle Okinawa Trough reveal strong and rapid millennial-scale climate changes since similar to 18 to 17 thousand years before present (kyr B.P.). Sedimentation rate shows a sudden drop at similar to 11.2 cal. kyr B.P. due to a rapid rise of sea level after the Younger Dryas (YD) and consequently submergence of the large continental shelf on the East China Sea (ECS) and the retreat of the estuary providing sediment to the basin. During the last deglaciation, the relative abundance of warm and cold species of planktonic foraminifera fluctuates strongly, consistent with the timing of sea surface temperature (SST) variations determined from Mg/Ca measurements of planktonic foraminifera from one of the two cores. These fluctuations are coeval with climate variation recorded in the Greenland ice cores and North Atlantic sediments, namely Heinrich event 1 (H1), Bolling-Allerod (B/A) and YD events. At about 9.4 kyr B.P., a sudden change in the relative abundance of shallow to deep planktonic species probably indicates a sudden strengthening of the Kuroshio Current in the Okinawa Trough, which was synchronous with a rapid sea-level rise at 9.5-9.2 kyr B.P. in the ECS, Yellow Sea (YS) and South China Sea (SCS). The abundance of planktonic foraminiferal species, together with Mg/Ca based SST, exhibits millennial-scale oscillations during the Holocene, with 7 cold events (at about 1.7, 2.3-4.6, 6.2, 7.3, 8.2, 9.6, 10.6 cal. kyr BP) superimposed on a Holocene warming trend. This Holocene trend, together with centennial-scale SST variations superimposed on the last deglacial trend, suggests that both high and low latitude influences affected the climatology of the Okinawa Trough. (c) 2006 Elsevier B.V. All rights reserved. Well-dated, high-resolution records of planktonic foraminifera and oxygen isotopes from two sediment cores, A7 and E017, in the middle Okinawa Trough reveal strong and rapid ... Article in Journal/Newspaper Greenland Greenland ice cores North Atlantic Planktonic foraminifera Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Palaeogeography, Palaeoclimatology, Palaeoecology 243 3-4 378 393 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Okinawa Trough Last Deglaciation Holocene East Asia Monsoon Planktonic Forarninifera Sedimentation Rate Kuroshio Current Millennial-scale Climate Changes Oxygen Isotope Geography Physical Geosciences Multidisciplinary Paleontology |
spellingShingle |
Okinawa Trough Last Deglaciation Holocene East Asia Monsoon Planktonic Forarninifera Sedimentation Rate Kuroshio Current Millennial-scale Climate Changes Oxygen Isotope Geography Physical Geosciences Multidisciplinary Paleontology Xiang, Rong Sun, Youbin Li, Tiegang Oppo, Delia W. Chen, Muhong Zheng, Fan Paleoenvironmental change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and planktonic foraminiferal record |
topic_facet |
Okinawa Trough Last Deglaciation Holocene East Asia Monsoon Planktonic Forarninifera Sedimentation Rate Kuroshio Current Millennial-scale Climate Changes Oxygen Isotope Geography Physical Geosciences Multidisciplinary Paleontology |
description |
Well-dated, high-resolution records of planktonic foraminifera and oxygen isotopes from two sediment cores, A7 and E017, in the middle Okinawa Trough reveal strong and rapid millennial-scale climate changes since similar to 18 to 17 thousand years before present (kyr B.P.). Sedimentation rate shows a sudden drop at similar to 11.2 cal. kyr B.P. due to a rapid rise of sea level after the Younger Dryas (YD) and consequently submergence of the large continental shelf on the East China Sea (ECS) and the retreat of the estuary providing sediment to the basin. During the last deglaciation, the relative abundance of warm and cold species of planktonic foraminifera fluctuates strongly, consistent with the timing of sea surface temperature (SST) variations determined from Mg/Ca measurements of planktonic foraminifera from one of the two cores. These fluctuations are coeval with climate variation recorded in the Greenland ice cores and North Atlantic sediments, namely Heinrich event 1 (H1), Bolling-Allerod (B/A) and YD events. At about 9.4 kyr B.P., a sudden change in the relative abundance of shallow to deep planktonic species probably indicates a sudden strengthening of the Kuroshio Current in the Okinawa Trough, which was synchronous with a rapid sea-level rise at 9.5-9.2 kyr B.P. in the ECS, Yellow Sea (YS) and South China Sea (SCS). The abundance of planktonic foraminiferal species, together with Mg/Ca based SST, exhibits millennial-scale oscillations during the Holocene, with 7 cold events (at about 1.7, 2.3-4.6, 6.2, 7.3, 8.2, 9.6, 10.6 cal. kyr BP) superimposed on a Holocene warming trend. This Holocene trend, together with centennial-scale SST variations superimposed on the last deglacial trend, suggests that both high and low latitude influences affected the climatology of the Okinawa Trough. (c) 2006 Elsevier B.V. All rights reserved. Well-dated, high-resolution records of planktonic foraminifera and oxygen isotopes from two sediment cores, A7 and E017, in the middle Okinawa Trough reveal strong and rapid ... |
format |
Article in Journal/Newspaper |
author |
Xiang, Rong Sun, Youbin Li, Tiegang Oppo, Delia W. Chen, Muhong Zheng, Fan |
author_facet |
Xiang, Rong Sun, Youbin Li, Tiegang Oppo, Delia W. Chen, Muhong Zheng, Fan |
author_sort |
Xiang, Rong |
title |
Paleoenvironmental change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and planktonic foraminiferal record |
title_short |
Paleoenvironmental change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and planktonic foraminiferal record |
title_full |
Paleoenvironmental change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and planktonic foraminiferal record |
title_fullStr |
Paleoenvironmental change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and planktonic foraminiferal record |
title_full_unstemmed |
Paleoenvironmental change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and planktonic foraminiferal record |
title_sort |
paleoenvironmental change in the middle okinawa trough since the last deglaciation: evidence from the sedimentation rate and planktonic foraminiferal record |
publishDate |
2007 |
url |
http://ir.qdio.ac.cn/handle/337002/5079 https://doi.org/10.1016/j.palaeo.2006.08.016 |
genre |
Greenland Greenland ice cores North Atlantic Planktonic foraminifera |
genre_facet |
Greenland Greenland ice cores North Atlantic Planktonic foraminifera |
op_relation |
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY Xiang, Rong; Sun, Youbin; Li, Tiegang; Oppo, Delia W.; Chen, Muhong; Zheng, Fan.Paleoenvironmental change in the middle Okinawa Trough since the last deglaciation: Evidence from the sedimentation rate and planktonic foraminiferal record,PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,2007,243(40241):378-393 http://ir.qdio.ac.cn/handle/337002/5079 doi:10.1016/j.palaeo.2006.08.016 |
op_doi |
https://doi.org/10.1016/j.palaeo.2006.08.016 |
container_title |
Palaeogeography, Palaeoclimatology, Palaeoecology |
container_volume |
243 |
container_issue |
3-4 |
container_start_page |
378 |
op_container_end_page |
393 |
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1810447800941412352 |