Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea
Biogenic reefs are one of two major depositional types in the South China Sea, and are constructed by coral, algae and bryozoa. The West Pacific is a major area of biogenic reef development and plays a critical role in the global carbon cycle. However, the lack of geochronological studies in previou...
Published in: | Science Bulletin |
---|---|
Main Authors: | , , , , , , |
Format: | Report |
Language: | English |
Published: |
SCIENCE PRESS
2018
|
Subjects: | |
Online Access: | http://ir.nigpas.ac.cn/handle/332004/17186 https://doi.org/10.1016/j.scib.2018.04.001 |
id |
ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/17186 |
---|---|
record_format |
openpolar |
spelling |
ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/17186 2023-05-15T17:51:36+02:00 Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea Yi, Liang Jian, Zhimin Liu, Xinyu Zhu, Youhua Zhang, Daojun Wang, Zhenfeng Deng, Chenglong 2018-05-15 http://ir.nigpas.ac.cn/handle/332004/17186 https://doi.org/10.1016/j.scib.2018.04.001 英语 eng SCIENCE PRESS SCIENCE BULLETIN http://ir.nigpas.ac.cn/handle/332004/17186 doi:10.1016/j.scib.2018.04.001 Astronomical tuning Magentostratigraphy Magnetic susceptibility Biogenic reefs Neogene South China Sea CARBONATE PLATFORMS OCEAN ACIDIFICATION NORTHERN MARGIN CLIMATE-CHANGE LATE MIOCENE CORAL-REEFS ASIA SEDIMENTATION EVOLUTION FRAMEWORK Science & Technology - Other Topics Multidisciplinary Sciences 期刊论文 2018 ftchinacscnigpas https://doi.org/10.1016/j.scib.2018.04.001 2019-08-14T12:43:46Z Biogenic reefs are one of two major depositional types in the South China Sea, and are constructed by coral, algae and bryozoa. The West Pacific is a major area of biogenic reef development and plays a critical role in the global carbon cycle. However, the lack of geochronological studies in previous works inhibits our understanding of their contributions. Herein, we conduct a cyclostratigraphic and magnetostratigraphic study on Neogene biogenic reefs using the XK-1 core that was drilled at the Shidao Island, Xisha (Paracel) Islands. The main findings of this study are: (1) the establishment of reliable magentostratigraphy for Ledong, Huangliu, Meishan and Sanya Formations; (2) the magnetic susceptibility variation can be inferred as growth index and tuned to the 405-ka long eccentricity cycle; (3) the astronomical geochronology suggests that the bottom ages for Ledong, Yinggehai, Huangliu, Meishan, and Sanya Formations are 2.2 Ma, 5.7 Ma, 10.4 Ma, 16.6 Ma, and 24.3 Ma, respectively; and (4) Earth's eccentricity and obliquity played predominant roles in biogenic reef establishment on orbital to tectonic timescales. Thus, the reported geochronology offers an opportunity to test the contributions of various factors and hypothesize their roles in the global carbon cycle in future. (C) 2018 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved. Report Ocean acidification Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Pacific Science Bulletin 63 9 564 573 |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
Astronomical tuning Magentostratigraphy Magnetic susceptibility Biogenic reefs Neogene South China Sea CARBONATE PLATFORMS OCEAN ACIDIFICATION NORTHERN MARGIN CLIMATE-CHANGE LATE MIOCENE CORAL-REEFS ASIA SEDIMENTATION EVOLUTION FRAMEWORK Science & Technology - Other Topics Multidisciplinary Sciences |
spellingShingle |
Astronomical tuning Magentostratigraphy Magnetic susceptibility Biogenic reefs Neogene South China Sea CARBONATE PLATFORMS OCEAN ACIDIFICATION NORTHERN MARGIN CLIMATE-CHANGE LATE MIOCENE CORAL-REEFS ASIA SEDIMENTATION EVOLUTION FRAMEWORK Science & Technology - Other Topics Multidisciplinary Sciences Yi, Liang Jian, Zhimin Liu, Xinyu Zhu, Youhua Zhang, Daojun Wang, Zhenfeng Deng, Chenglong Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea |
topic_facet |
Astronomical tuning Magentostratigraphy Magnetic susceptibility Biogenic reefs Neogene South China Sea CARBONATE PLATFORMS OCEAN ACIDIFICATION NORTHERN MARGIN CLIMATE-CHANGE LATE MIOCENE CORAL-REEFS ASIA SEDIMENTATION EVOLUTION FRAMEWORK Science & Technology - Other Topics Multidisciplinary Sciences |
description |
Biogenic reefs are one of two major depositional types in the South China Sea, and are constructed by coral, algae and bryozoa. The West Pacific is a major area of biogenic reef development and plays a critical role in the global carbon cycle. However, the lack of geochronological studies in previous works inhibits our understanding of their contributions. Herein, we conduct a cyclostratigraphic and magnetostratigraphic study on Neogene biogenic reefs using the XK-1 core that was drilled at the Shidao Island, Xisha (Paracel) Islands. The main findings of this study are: (1) the establishment of reliable magentostratigraphy for Ledong, Huangliu, Meishan and Sanya Formations; (2) the magnetic susceptibility variation can be inferred as growth index and tuned to the 405-ka long eccentricity cycle; (3) the astronomical geochronology suggests that the bottom ages for Ledong, Yinggehai, Huangliu, Meishan, and Sanya Formations are 2.2 Ma, 5.7 Ma, 10.4 Ma, 16.6 Ma, and 24.3 Ma, respectively; and (4) Earth's eccentricity and obliquity played predominant roles in biogenic reef establishment on orbital to tectonic timescales. Thus, the reported geochronology offers an opportunity to test the contributions of various factors and hypothesize their roles in the global carbon cycle in future. (C) 2018 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved. |
format |
Report |
author |
Yi, Liang Jian, Zhimin Liu, Xinyu Zhu, Youhua Zhang, Daojun Wang, Zhenfeng Deng, Chenglong |
author_facet |
Yi, Liang Jian, Zhimin Liu, Xinyu Zhu, Youhua Zhang, Daojun Wang, Zhenfeng Deng, Chenglong |
author_sort |
Yi, Liang |
title |
Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea |
title_short |
Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea |
title_full |
Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea |
title_fullStr |
Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea |
title_full_unstemmed |
Astronomical tuning and magnetostratigraphy of Neogene biogenic reefs in Xisha Islands, South China Sea |
title_sort |
astronomical tuning and magnetostratigraphy of neogene biogenic reefs in xisha islands, south china sea |
publisher |
SCIENCE PRESS |
publishDate |
2018 |
url |
http://ir.nigpas.ac.cn/handle/332004/17186 https://doi.org/10.1016/j.scib.2018.04.001 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
SCIENCE BULLETIN http://ir.nigpas.ac.cn/handle/332004/17186 doi:10.1016/j.scib.2018.04.001 |
op_doi |
https://doi.org/10.1016/j.scib.2018.04.001 |
container_title |
Science Bulletin |
container_volume |
63 |
container_issue |
9 |
container_start_page |
564 |
op_container_end_page |
573 |
_version_ |
1766158808075206656 |