Evolution of a deep-water ferromanganese nodule in the South China Sea in response to Pacific deep-water circulation and continental weathering during the Plio-Pleistocene
The South China Sea (SCS) is connected to the West Pacific through a deep channel in the Luzon Strait. Thus the SCS deep water is sensitive to the evolution of Pacific Ocean circulation, which significantly influences the global climate system. Geochemical data (Pb isotope and redox-sensitive elemen...
Published in: | Quaternary Science Reviews |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Report |
Language: | English |
Published: |
PERGAMON-ELSEVIER SCIENCE LTD
2020
|
Subjects: | |
Online Access: | http://ir.qdio.ac.cn/handle/337002/165562 http://ir.qdio.ac.cn/handle/337002/165563 https://doi.org/10.1016/j.quascirev.2019.106106 |
id |
ftchinacasciocas:oai:ir.qdio.ac.cn:337002/165563 |
---|---|
record_format |
openpolar |
spelling |
ftchinacasciocas:oai:ir.qdio.ac.cn:337002/165563 2023-05-15T16:41:24+02:00 Evolution of a deep-water ferromanganese nodule in the South China Sea in response to Pacific deep-water circulation and continental weathering during the Plio-Pleistocene Zhong, Yi Chen, Zhong Hein, James R. Javier Gonzalez, Francisco Jiang, Zhaoxia Yang, Xiaoqiang Zhang, Jian Wang, Wanzhang Shi, Xuefa Liu, Zhonghui Liu, Qingsong 2020-02-01 http://ir.qdio.ac.cn/handle/337002/165562 http://ir.qdio.ac.cn/handle/337002/165563 https://doi.org/10.1016/j.quascirev.2019.106106 英语 eng PERGAMON-ELSEVIER SCIENCE LTD QUATERNARY SCIENCE REVIEWS http://ir.qdio.ac.cn/handle/337002/165562 http://ir.qdio.ac.cn/handle/337002/165563 doi:10.1016/j.quascirev.2019.106106 Polymetallic nodule Rock magnetic properties Global cooling Pacific deep water South China sea Physical Geography Geology Geography Physical Geosciences Multidisciplinary 期刊论文 2020 ftchinacasciocas https://doi.org/10.1016/j.quascirev.2019.106106 2022-06-27T05:42:12Z The South China Sea (SCS) is connected to the West Pacific through a deep channel in the Luzon Strait. Thus the SCS deep water is sensitive to the evolution of Pacific Ocean circulation, which significantly influences the global climate system. Geochemical data (Pb isotope and redox-sensitive elements data) and magnetic data were determined for a Fe-Mn nodule obtained from Jiaolong seamount in the central SCS. These records reflect interactions between changes in ice sheets, deep Pacific circulation, and weathering inputs to the deep SCS during the Pliocene and Quaternary. Our results show that the SCS deep-water environment can be divided into three major Stages (Stages 1-3). Stage 1 (similar to 4.8-1.4 Ma) was characterized by a well-oxygenated Pacific Deep Water (PDW) and lower dust inputs: then moderate stable deep-water ventilation and greater inputs of Asian dust occurred during Stage 2 (1.4-0.9 Ma). During Stage 3 (<0.9 Ma), a more isolated PDW was accompanied by sluggish Pacific overturning circulation, probably due to the weakened southern-sourced deep-water formation. In general, the progressive intensification of northern hemisphere ice-sheet play an active role in controlling the variation of the deep-water environment in the SCS. Interestingly, the variation in deep-water ventilation lagged behind weathering and erosion around the Middle Pleistocene Transition, which strongly indicates that the ocean and continent environments had different sensitivities to the global paleoclimatic changes at the glacial climate boundary. (C) 2019 Elsevier Ltd. All rights reserved. Report Ice Sheet Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR Pacific Quaternary Science Reviews 229 106106 |
institution |
Open Polar |
collection |
Institute of Oceanology, Chinese Academy of Sciences: IOCAS-IR |
op_collection_id |
ftchinacasciocas |
language |
English |
topic |
Polymetallic nodule Rock magnetic properties Global cooling Pacific deep water South China sea Physical Geography Geology Geography Physical Geosciences Multidisciplinary |
spellingShingle |
Polymetallic nodule Rock magnetic properties Global cooling Pacific deep water South China sea Physical Geography Geology Geography Physical Geosciences Multidisciplinary Zhong, Yi Chen, Zhong Hein, James R. Javier Gonzalez, Francisco Jiang, Zhaoxia Yang, Xiaoqiang Zhang, Jian Wang, Wanzhang Shi, Xuefa Liu, Zhonghui Liu, Qingsong Evolution of a deep-water ferromanganese nodule in the South China Sea in response to Pacific deep-water circulation and continental weathering during the Plio-Pleistocene |
topic_facet |
Polymetallic nodule Rock magnetic properties Global cooling Pacific deep water South China sea Physical Geography Geology Geography Physical Geosciences Multidisciplinary |
description |
The South China Sea (SCS) is connected to the West Pacific through a deep channel in the Luzon Strait. Thus the SCS deep water is sensitive to the evolution of Pacific Ocean circulation, which significantly influences the global climate system. Geochemical data (Pb isotope and redox-sensitive elements data) and magnetic data were determined for a Fe-Mn nodule obtained from Jiaolong seamount in the central SCS. These records reflect interactions between changes in ice sheets, deep Pacific circulation, and weathering inputs to the deep SCS during the Pliocene and Quaternary. Our results show that the SCS deep-water environment can be divided into three major Stages (Stages 1-3). Stage 1 (similar to 4.8-1.4 Ma) was characterized by a well-oxygenated Pacific Deep Water (PDW) and lower dust inputs: then moderate stable deep-water ventilation and greater inputs of Asian dust occurred during Stage 2 (1.4-0.9 Ma). During Stage 3 (<0.9 Ma), a more isolated PDW was accompanied by sluggish Pacific overturning circulation, probably due to the weakened southern-sourced deep-water formation. In general, the progressive intensification of northern hemisphere ice-sheet play an active role in controlling the variation of the deep-water environment in the SCS. Interestingly, the variation in deep-water ventilation lagged behind weathering and erosion around the Middle Pleistocene Transition, which strongly indicates that the ocean and continent environments had different sensitivities to the global paleoclimatic changes at the glacial climate boundary. (C) 2019 Elsevier Ltd. All rights reserved. |
format |
Report |
author |
Zhong, Yi Chen, Zhong Hein, James R. Javier Gonzalez, Francisco Jiang, Zhaoxia Yang, Xiaoqiang Zhang, Jian Wang, Wanzhang Shi, Xuefa Liu, Zhonghui Liu, Qingsong |
author_facet |
Zhong, Yi Chen, Zhong Hein, James R. Javier Gonzalez, Francisco Jiang, Zhaoxia Yang, Xiaoqiang Zhang, Jian Wang, Wanzhang Shi, Xuefa Liu, Zhonghui Liu, Qingsong |
author_sort |
Zhong, Yi |
title |
Evolution of a deep-water ferromanganese nodule in the South China Sea in response to Pacific deep-water circulation and continental weathering during the Plio-Pleistocene |
title_short |
Evolution of a deep-water ferromanganese nodule in the South China Sea in response to Pacific deep-water circulation and continental weathering during the Plio-Pleistocene |
title_full |
Evolution of a deep-water ferromanganese nodule in the South China Sea in response to Pacific deep-water circulation and continental weathering during the Plio-Pleistocene |
title_fullStr |
Evolution of a deep-water ferromanganese nodule in the South China Sea in response to Pacific deep-water circulation and continental weathering during the Plio-Pleistocene |
title_full_unstemmed |
Evolution of a deep-water ferromanganese nodule in the South China Sea in response to Pacific deep-water circulation and continental weathering during the Plio-Pleistocene |
title_sort |
evolution of a deep-water ferromanganese nodule in the south china sea in response to pacific deep-water circulation and continental weathering during the plio-pleistocene |
publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
publishDate |
2020 |
url |
http://ir.qdio.ac.cn/handle/337002/165562 http://ir.qdio.ac.cn/handle/337002/165563 https://doi.org/10.1016/j.quascirev.2019.106106 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
QUATERNARY SCIENCE REVIEWS http://ir.qdio.ac.cn/handle/337002/165562 http://ir.qdio.ac.cn/handle/337002/165563 doi:10.1016/j.quascirev.2019.106106 |
op_doi |
https://doi.org/10.1016/j.quascirev.2019.106106 |
container_title |
Quaternary Science Reviews |
container_volume |
229 |
container_start_page |
106106 |
_version_ |
1766031828556185600 |