Transition of Quaternary glacial cyclicity in deep-sea records at Nansha, the South China Sea
Abstract High-resolution oxygen isotope records over the last 2249 ka (MIS 1 86) have been obtained from cores of the upper section (105.08 m) at ODP Site 1143 (water depth of 2772 m) drilled in the Nansha area, southern South China Sea. The sampling resolution is at about 2 ka intervals, resulting...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.621.7787 2023-05-15T16:40:14+02:00 Transition of Quaternary glacial cyclicity in deep-sea records at Nansha, the South China Sea Wang Pinxian Tian Jun Cheng Xinrong The Pennsylvania State University CiteSeerX Archives 2001 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.621.7787 http://mgg.tongji.edu.cn/pub/pinxian/eng/2001-03.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.621.7787 http://mgg.tongji.edu.cn/pub/pinxian/eng/2001-03.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://mgg.tongji.edu.cn/pub/pinxian/eng/2001-03.pdf Quaternary glacial cycles Mid-Pleistocene Revolution oxygen isotope stages Nansha area text 2001 ftciteseerx 2016-01-08T15:02:33Z Abstract High-resolution oxygen isotope records over the last 2249 ka (MIS 1 86) have been obtained from cores of the upper section (105.08 m) at ODP Site 1143 (water depth of 2772 m) drilled in the Nansha area, southern South China Sea. The sampling resolution is at about 2 ka intervals, resulting in one of the best oxygen isotope records over the global ocean. The oxygen isotope curves, displaying details in the Pleistocene glacial cycles, have revealed a nearly 300 ka long stage of transition from a predominant 40 ka to 100 ka periodicity. Therefore, the “Mid-Pleistocene Revolution ” should be considered as a process of transition rather than an abrupt change. Within the 100 ka glacial cycles, the changes in tropical sea surface water were found to lead those in high-latitude ice sheet. Our comparisons show that the ice sheet expansion and the glacial stage extension in the Northern Hemisphere with the 100 ka cycles must have been driven not by ice sheet itself, but by processes outside the high latitudes of the Northern Hemisphere. Text Ice Sheet Unknown |
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language |
English |
topic |
Quaternary glacial cycles Mid-Pleistocene Revolution oxygen isotope stages Nansha area |
spellingShingle |
Quaternary glacial cycles Mid-Pleistocene Revolution oxygen isotope stages Nansha area Wang Pinxian Tian Jun Cheng Xinrong Transition of Quaternary glacial cyclicity in deep-sea records at Nansha, the South China Sea |
topic_facet |
Quaternary glacial cycles Mid-Pleistocene Revolution oxygen isotope stages Nansha area |
description |
Abstract High-resolution oxygen isotope records over the last 2249 ka (MIS 1 86) have been obtained from cores of the upper section (105.08 m) at ODP Site 1143 (water depth of 2772 m) drilled in the Nansha area, southern South China Sea. The sampling resolution is at about 2 ka intervals, resulting in one of the best oxygen isotope records over the global ocean. The oxygen isotope curves, displaying details in the Pleistocene glacial cycles, have revealed a nearly 300 ka long stage of transition from a predominant 40 ka to 100 ka periodicity. Therefore, the “Mid-Pleistocene Revolution ” should be considered as a process of transition rather than an abrupt change. Within the 100 ka glacial cycles, the changes in tropical sea surface water were found to lead those in high-latitude ice sheet. Our comparisons show that the ice sheet expansion and the glacial stage extension in the Northern Hemisphere with the 100 ka cycles must have been driven not by ice sheet itself, but by processes outside the high latitudes of the Northern Hemisphere. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Wang Pinxian Tian Jun Cheng Xinrong |
author_facet |
Wang Pinxian Tian Jun Cheng Xinrong |
author_sort |
Wang Pinxian |
title |
Transition of Quaternary glacial cyclicity in deep-sea records at Nansha, the South China Sea |
title_short |
Transition of Quaternary glacial cyclicity in deep-sea records at Nansha, the South China Sea |
title_full |
Transition of Quaternary glacial cyclicity in deep-sea records at Nansha, the South China Sea |
title_fullStr |
Transition of Quaternary glacial cyclicity in deep-sea records at Nansha, the South China Sea |
title_full_unstemmed |
Transition of Quaternary glacial cyclicity in deep-sea records at Nansha, the South China Sea |
title_sort |
transition of quaternary glacial cyclicity in deep-sea records at nansha, the south china sea |
publishDate |
2001 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.621.7787 http://mgg.tongji.edu.cn/pub/pinxian/eng/2001-03.pdf |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
http://mgg.tongji.edu.cn/pub/pinxian/eng/2001-03.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.621.7787 http://mgg.tongji.edu.cn/pub/pinxian/eng/2001-03.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766030620217049088 |