Systematic biotic responses to palaeoenvironmental change in the Late Pleistocene southern South China Sea: a preliminary study
Copyright © 2008 John Wiley & Sons, Ltd. <jats:title>Abstract</jats:title><jats:p>Oxygen and carbon isotopes from the planktonic foraminifer <jats:italic>Globigerinoides sacculifer</jats:italic>, trace element contents, calcium carbonate, biogenic silica, grain size...
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ftunivadelaidedl:oai:digital.library.adelaide.edu.au:2440/53611 2023-12-31T10:22:13+01:00 Systematic biotic responses to palaeoenvironmental change in the Late Pleistocene southern South China Sea: a preliminary study Chen, M. Li, Q. Zhang, L. Zheng, F. Lu, J. Xiang, R. Yan, W. Chen, Z. Xiao, S. 2008 http://hdl.handle.net/2440/53611 https://doi.org/10.1002/jqs.1178 en eng John Wiley & Sons Ltd Journal of Quaternary Science, 2008; 23(8):803-815 0267-8179 1099-1417 http://hdl.handle.net/2440/53611 doi:10.1002/jqs.1178 http://dx.doi.org/10.1002/jqs.1178 palaeoenvironment palaeoecology biological element terrigenous materials southern South China Sea Journal article 2008 ftunivadelaidedl https://doi.org/10.1002/jqs.1178 2023-12-04T23:15:29Z Copyright © 2008 John Wiley & Sons, Ltd. <jats:title>Abstract</jats:title><jats:p>Oxygen and carbon isotopes from the planktonic foraminifer <jats:italic>Globigerinoides sacculifer</jats:italic>, trace element contents, calcium carbonate, biogenic silica, grain size, and abundances of diatoms, radiolarians and foraminifera in a deep‐sea core from the southwestern South China Sea were analysed to investigate the response of various marine ecological communities to environmental changes over the last 200 ka. The synthesised results show that the quality of the palaeoecological environment for biological growth is primarily affected by nutrient supply and terrigenous disturbance. Ba and P are important nutrient elements for the growth of diatoms, radiolarians and planktonic foraminifera. Together with dissolved silica and calcium carbonate in sea water, these elements may control microbiotic development. However, variations in Fe content appear to affect diatom and radiolarian abundance. Optimal biotic growth occurs when nutrients are abundant and when there is minimal terrigenous disturbance. Biotic growth decreases when sea water is highly oligotrophic and terrigenous input is high. Maximum biological growth occurred in the mid Holocene, but deteriorated soon afterwards owing to increased terrigenous input, causing a decrease of biological abundance and productivity in the late Holocene. The results also indicate how the Toba volcanic eruption ca. 74 ka ago contributed to changing the ecological environment in the southern South China Sea. Copyright © 2008 John Wiley & Sons, Ltd.</jats:p> Muhong Chen, Qianyu Li, Lanlan Zhang, Fan Zheng, Jun Lu, Rong Xiang, Lili Zhang, Wen Yan, Zhong Chen and Shangbin Xiao Article in Journal/Newspaper Planktonic foraminifera The University of Adelaide: Digital Library Journal of Quaternary Science 23 8 803 815 |
institution |
Open Polar |
collection |
The University of Adelaide: Digital Library |
op_collection_id |
ftunivadelaidedl |
language |
English |
topic |
palaeoenvironment palaeoecology biological element terrigenous materials southern South China Sea |
spellingShingle |
palaeoenvironment palaeoecology biological element terrigenous materials southern South China Sea Chen, M. Li, Q. Zhang, L. Zheng, F. Lu, J. Xiang, R. Yan, W. Chen, Z. Xiao, S. Systematic biotic responses to palaeoenvironmental change in the Late Pleistocene southern South China Sea: a preliminary study |
topic_facet |
palaeoenvironment palaeoecology biological element terrigenous materials southern South China Sea |
description |
Copyright © 2008 John Wiley & Sons, Ltd. <jats:title>Abstract</jats:title><jats:p>Oxygen and carbon isotopes from the planktonic foraminifer <jats:italic>Globigerinoides sacculifer</jats:italic>, trace element contents, calcium carbonate, biogenic silica, grain size, and abundances of diatoms, radiolarians and foraminifera in a deep‐sea core from the southwestern South China Sea were analysed to investigate the response of various marine ecological communities to environmental changes over the last 200 ka. The synthesised results show that the quality of the palaeoecological environment for biological growth is primarily affected by nutrient supply and terrigenous disturbance. Ba and P are important nutrient elements for the growth of diatoms, radiolarians and planktonic foraminifera. Together with dissolved silica and calcium carbonate in sea water, these elements may control microbiotic development. However, variations in Fe content appear to affect diatom and radiolarian abundance. Optimal biotic growth occurs when nutrients are abundant and when there is minimal terrigenous disturbance. Biotic growth decreases when sea water is highly oligotrophic and terrigenous input is high. Maximum biological growth occurred in the mid Holocene, but deteriorated soon afterwards owing to increased terrigenous input, causing a decrease of biological abundance and productivity in the late Holocene. The results also indicate how the Toba volcanic eruption ca. 74 ka ago contributed to changing the ecological environment in the southern South China Sea. Copyright © 2008 John Wiley & Sons, Ltd.</jats:p> Muhong Chen, Qianyu Li, Lanlan Zhang, Fan Zheng, Jun Lu, Rong Xiang, Lili Zhang, Wen Yan, Zhong Chen and Shangbin Xiao |
format |
Article in Journal/Newspaper |
author |
Chen, M. Li, Q. Zhang, L. Zheng, F. Lu, J. Xiang, R. Yan, W. Chen, Z. Xiao, S. |
author_facet |
Chen, M. Li, Q. Zhang, L. Zheng, F. Lu, J. Xiang, R. Yan, W. Chen, Z. Xiao, S. |
author_sort |
Chen, M. |
title |
Systematic biotic responses to palaeoenvironmental change in the Late Pleistocene southern South China Sea: a preliminary study |
title_short |
Systematic biotic responses to palaeoenvironmental change in the Late Pleistocene southern South China Sea: a preliminary study |
title_full |
Systematic biotic responses to palaeoenvironmental change in the Late Pleistocene southern South China Sea: a preliminary study |
title_fullStr |
Systematic biotic responses to palaeoenvironmental change in the Late Pleistocene southern South China Sea: a preliminary study |
title_full_unstemmed |
Systematic biotic responses to palaeoenvironmental change in the Late Pleistocene southern South China Sea: a preliminary study |
title_sort |
systematic biotic responses to palaeoenvironmental change in the late pleistocene southern south china sea: a preliminary study |
publisher |
John Wiley & Sons Ltd |
publishDate |
2008 |
url |
http://hdl.handle.net/2440/53611 https://doi.org/10.1002/jqs.1178 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_source |
http://dx.doi.org/10.1002/jqs.1178 |
op_relation |
Journal of Quaternary Science, 2008; 23(8):803-815 0267-8179 1099-1417 http://hdl.handle.net/2440/53611 doi:10.1002/jqs.1178 |
op_doi |
https://doi.org/10.1002/jqs.1178 |
container_title |
Journal of Quaternary Science |
container_volume |
23 |
container_issue |
8 |
container_start_page |
803 |
op_container_end_page |
815 |
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1786833269496479744 |