Oxygen and carbon isotope records of calcareous nannofossils for the past 1 Ma in the southern South China Sea
Oxygen and carbon isotopic analyses have been carried out on calcareous nannofossils from ODP Site 1143 in the southern South China Sea. The results demonstrate that the 5180 values of calcareous nannofossils for the past 1 Ma vary systematically with those of planktonic and benthic foraminifera fro...
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ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/1161 2023-05-15T18:00:36+02:00 Oxygen and carbon isotope records of calcareous nannofossils for the past 1 Ma in the southern South China Sea Liu, CL Cheng, XR Zhu, YH (祝幼华) Tian, J Xia, PF 2002-05-01 http://ir.nigpas.ac.cn/handle/332004/1161 英语 eng SCIENCE CHINA PRESS CHINESE SCIENCE BULLETIN http://ir.nigpas.ac.cn/handle/332004/1161 Oxygen And Carbon Isotope Calcareous Nannofossil South China Sea Paleoceanographic Indicators Coccoliths Science & Technology - Other Topics Multidisciplinary Sciences 期刊论文 2002 ftchinacscnigpas 2019-10-04T00:03:19Z Oxygen and carbon isotopic analyses have been carried out on calcareous nannofossils from ODP Site 1143 in the southern South China Sea. The results demonstrate that the 5180 values of calcareous nannofossils for the past 1 Ma vary systematically with those of planktonic and benthic foraminifera from the same site. But the average delta(18)O value of nannofossils is 1.869parts per thousand higher than that of planktonic foraminifera, and is 3.855parts per thousand lower than that of benthic foarminifera. There are systematic differences between the delta(13)C values of nannofossils, planktonic foarminifera and benthic foraminifera. The average delta(13)C of nannofossils is 0.756parts per thousand higher than that of benthic foraminifera, and is 0.460parts per thousand lower than that of planktonic foraminifera. The delta(13)C values of nannofossils exhibit a significant positive shift beginning near Isotope stage 14 and lasting until stage 8. This study also finds that there is a close ralationship between the delta(13)C of nannofossils and the percentage of Florisphaera profunda. This implies that the delta(13)C of nannofossils can be used as an indicator of sea water surface paleoproductivity. Report Planktonic foraminifera Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
Oxygen And Carbon Isotope Calcareous Nannofossil South China Sea Paleoceanographic Indicators Coccoliths Science & Technology - Other Topics Multidisciplinary Sciences |
spellingShingle |
Oxygen And Carbon Isotope Calcareous Nannofossil South China Sea Paleoceanographic Indicators Coccoliths Science & Technology - Other Topics Multidisciplinary Sciences Liu, CL Cheng, XR Zhu, YH (祝幼华) Tian, J Xia, PF Oxygen and carbon isotope records of calcareous nannofossils for the past 1 Ma in the southern South China Sea |
topic_facet |
Oxygen And Carbon Isotope Calcareous Nannofossil South China Sea Paleoceanographic Indicators Coccoliths Science & Technology - Other Topics Multidisciplinary Sciences |
description |
Oxygen and carbon isotopic analyses have been carried out on calcareous nannofossils from ODP Site 1143 in the southern South China Sea. The results demonstrate that the 5180 values of calcareous nannofossils for the past 1 Ma vary systematically with those of planktonic and benthic foraminifera from the same site. But the average delta(18)O value of nannofossils is 1.869parts per thousand higher than that of planktonic foraminifera, and is 3.855parts per thousand lower than that of benthic foarminifera. There are systematic differences between the delta(13)C values of nannofossils, planktonic foarminifera and benthic foraminifera. The average delta(13)C of nannofossils is 0.756parts per thousand higher than that of benthic foraminifera, and is 0.460parts per thousand lower than that of planktonic foraminifera. The delta(13)C values of nannofossils exhibit a significant positive shift beginning near Isotope stage 14 and lasting until stage 8. This study also finds that there is a close ralationship between the delta(13)C of nannofossils and the percentage of Florisphaera profunda. This implies that the delta(13)C of nannofossils can be used as an indicator of sea water surface paleoproductivity. |
format |
Report |
author |
Liu, CL Cheng, XR Zhu, YH (祝幼华) Tian, J Xia, PF |
author_facet |
Liu, CL Cheng, XR Zhu, YH (祝幼华) Tian, J Xia, PF |
author_sort |
Liu, CL |
title |
Oxygen and carbon isotope records of calcareous nannofossils for the past 1 Ma in the southern South China Sea |
title_short |
Oxygen and carbon isotope records of calcareous nannofossils for the past 1 Ma in the southern South China Sea |
title_full |
Oxygen and carbon isotope records of calcareous nannofossils for the past 1 Ma in the southern South China Sea |
title_fullStr |
Oxygen and carbon isotope records of calcareous nannofossils for the past 1 Ma in the southern South China Sea |
title_full_unstemmed |
Oxygen and carbon isotope records of calcareous nannofossils for the past 1 Ma in the southern South China Sea |
title_sort |
oxygen and carbon isotope records of calcareous nannofossils for the past 1 ma in the southern south china sea |
publisher |
SCIENCE CHINA PRESS |
publishDate |
2002 |
url |
http://ir.nigpas.ac.cn/handle/332004/1161 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
CHINESE SCIENCE BULLETIN http://ir.nigpas.ac.cn/handle/332004/1161 |
_version_ |
1766169763676946432 |