南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录

李小艳

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南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录

李小艳

文章导航 > 沉积学报 > 2011 > 29(3): 572-579

李小艳. 南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录[J]. 沉积学报, 2011, 29(3): 572-579.

引用本文:

李小艳. 南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录[J]. 沉积学报, 2011, 29(3): 572-579.

LI Xiaoyan. Evolutionary Paleoceanographic Characteristics in the Northern South China Sea Since Late Pleistocene: Evidence from Core N31[J]. Acta Sedimentologica Sinica, 2011, 29(3): 572-579.

Citation:

LI Xiaoyan. Evolutionary Paleoceanographic Characteristics in the Northern South China Sea Since Late Pleistocene: Evidence from Core N31[J]. Acta Sedimentologica Sinica, 2011, 29(3): 572-579.

李小艳. 南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录[J]. 沉积学报, 2011, 29(3): 572-579.

引用本文:

李小艳. 南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录[J]. 沉积学报, 2011, 29(3): 572-579.

Citation:

南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录

李小艳

海洋沉积与环境地质国家海洋局重点实验室山东青岛 266061

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通讯作者:
李小艳

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Evolutionary Paleoceanographic Characteristics in the Northern South China Sea Since Late Pleistocene: Evidence from Core N31

LI Xiaoyan

Key Lab of Marine Sedimentology and Environmental Geology, SOA, Qingdao Shandong 266061

More Information

Corresponding author: LI Xiaoyan

摘要

摘要: 对南海北部N31柱状样沉积物进行了浮游有孔虫定量分析鉴定、氧碳同位素、碳酸盐含量和粒度测试以及AMS14C测年，并采用古生态转换函数计算了表层海水古温度和温跃层深度，揭示了该海区约55 ka以来的古海洋环境特征。转换函数计算的表层海水古温度结果表明，夏季温度的变化范围为27.0~29.6℃，变化幅度为2.6℃，冬季温度变化范围为18.2~27.0℃，变化幅度为8.8℃。与南海南部转换函数温度对比表明，南海南部的温度比南海北部要高，这种差异在冬季时表现更为突出。温跃层转换函数计算的温跃层深度结果表明，MIS3~MIS2期时温跃层深度没有大的变化，而从冰期向冰后期过渡时，温跃层深度逐渐增大。
- 古海洋环境浮游有孔虫晚更新世南海
Abstract: The South China Sea is the largest marginal sea in the western Pacific Ocean and its' north and south are wide continental shelf. There are many rivers flow into the South China Sea. The highresolution sediment records abundant environmental information of land and sea. This area has become one of hotspots on paleoceanography research and made a lot of research results. Planktonic foraminifera are very sensitive to changes of marine environment. Sea water temperature changes can directly affect the migration and succession of biota. Therefore, research the distribution of planktonic foraminifera in core sediment to analyze the evolution of paleoclimate. In this paper, a sediment Core N31 located in the northern South China Sea had been researched including quantitative analysis and identification of planktonic foraminifera, oxygen and carbon isotopes, carbonate content and grain size, AMS14C dating, sea surface temperature and thermocline depth calculated by paleoecological transfer function. The following conclusions have been attained:
1) The bottom age of Core N31 was about 55ka BP and this core accepted deposition since marine isotope stage 3.
2) Planktonic foraminifera species analysis showed that changes in abundance as the glacialinterglacial cycles and change. Tropical and subtropical species appeared in lager numbers in interglacial and its maximum percentage in MIS3 or MIS1, but temperate species appeared in larger numbers in the glacial period.
3) The sea surface temperature (SST) estimated by the transfer function FP12E shows that the summer SST ranges from 27.0 to 29.6℃ and the winter SST from 18.2 to 27.0℃. The comparison of SST data between the southern and northern SCS shows that SST in the southern SCS is higher than that in the northern SCS. The SST difference is more obvious in winter.
4) The thermocline data show no obvious fluctuations during MIS3MIS2, but the depth deepened gradually during the transitional period from the glacial to the postglacial.
- paleoceanography

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[1]	朱作飞, 袁玮琳, 赵奇, 袁胜, 姜海滨, 杜威, 刘鹏奇, 宋家伟. 海南新英湾更新世以来沉积地球化学特征：物源及古环境意义 . 沉积学报, 2025, (): -. doi: 10.14027/j.issn.1000-0550.2025.007
[2]	葛小瞳, 汪远征, 陈代钊, 张恭境, 黄泰誉, 李王鹏. 川东北地区二叠纪晚期古海洋环境与有机质富集 . 沉积学报, 2024, 42(3): 757-773. doi: 10.14027/j.issn.1000-0550.2023.115
[3]	宋颖, 刘宇, 向庭弘, 周小琳, 曹光耀, 张璐. 扬子东南缘早寒武世氮同位素特征及其古海洋环境意义 . 沉积学报, 2024, 42(6): 2042-2053. doi: 10.14027/j.issn.1000-0550.2023.130
[4]	刘欣宇, 李永祥. 晚塞诺曼期东特提斯洋古海洋环境探析 . 沉积学报, 2021, 39(5): 1171-1184. doi: 10.14027/j.issn.1000-0550.2020.045
[5]	徐承芬, 张勇, 孔祥淮, 胡刚, 毕世普, 牟秀娟, 宁泽, 张晓波. 闽北近岸海域晚更新世以来沉积地层特征及其演化 . 沉积学报, 2020, 38(2): 331-339. doi: 10.14027/j.issn.1000-0550.2019.095
[6]	郭沫贞, 吕福亮, 侯福斗, 李林, 杨涛涛, 李东. 东爪哇盆地抱球虫灰岩浮游有孔虫组成及指相意义 . 沉积学报, 2020, 38(4): 747-758. doi: 10.14027/j.issn.1000-0550.2019.070
[7]	高胜美, 卓海腾, 王英民, 王星星, 贾凯育, 周伟. 南海北部白云峡谷群富有孔虫砂层沉积特征及发育机制 . 沉积学报, 2019, 37(4): 798-811. doi: 10.14027/j.issn.1000-0550.2018.187
[8]	杨向荣, 严德天, 张利伟, 张宝, 徐翰文, 刘文慧, 郧嘉琳. 赫南特冰期古海洋环境转变及其成因机制研究现状 . 沉积学报, 2018, 36(2): 319-332. doi: 10.14027/j.issn.1000-0550.2018.037
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南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录

李小艳

海洋沉积与环境地质国家海洋局重点实验室山东青岛 266061

通讯作者: 李小艳

收稿日期: 1900-01-01
修回日期: 1900-01-01
刊出日期: 2011-06-10

关键词:

古海洋环境浮游有孔虫晚更新世南海

摘要: 对南海北部N31柱状样沉积物进行了浮游有孔虫定量分析鉴定、氧碳同位素、碳酸盐含量和粒度测试以及AMS14C测年，并采用古生态转换函数计算了表层海水古温度和温跃层深度，揭示了该海区约55 ka以来的古海洋环境特征。转换函数计算的表层海水古温度结果表明，夏季温度的变化范围为27.0~29.6℃，变化幅度为2.6℃，冬季温度变化范围为18.2~27.0℃，变化幅度为8.8℃。与南海南部转换函数温度对比表明，南海南部的温度比南海北部要高，这种差异在冬季时表现更为突出。温跃层转换函数计算的温跃层深度结果表明，MIS3~MIS2期时温跃层深度没有大的变化，而从冰期向冰后期过渡时，温跃层深度逐渐增大。

English Abstract

Evolutionary Paleoceanographic Characteristics in the Northern South China Sea Since Late Pleistocene: Evidence from Core N31

LI Xiaoyan

Key Lab of Marine Sedimentology and Environmental Geology, SOA, Qingdao Shandong 266061

Corresponding author: LI Xiaoyan

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2011-06-10

Keywords:

paleoceanography

Abstract: The South China Sea is the largest marginal sea in the western Pacific Ocean and its' north and south are wide continental shelf. There are many rivers flow into the South China Sea. The highresolution sediment records abundant environmental information of land and sea. This area has become one of hotspots on paleoceanography research and made a lot of research results. Planktonic foraminifera are very sensitive to changes of marine environment. Sea water temperature changes can directly affect the migration and succession of biota. Therefore, research the distribution of planktonic foraminifera in core sediment to analyze the evolution of paleoclimate. In this paper, a sediment Core N31 located in the northern South China Sea had been researched including quantitative analysis and identification of planktonic foraminifera, oxygen and carbon isotopes, carbonate content and grain size, AMS14C dating, sea surface temperature and thermocline depth calculated by paleoecological transfer function. The following conclusions have been attained:
1) The bottom age of Core N31 was about 55ka BP and this core accepted deposition since marine isotope stage 3.
2) Planktonic foraminifera species analysis showed that changes in abundance as the glacialinterglacial cycles and change. Tropical and subtropical species appeared in lager numbers in interglacial and its maximum percentage in MIS3 or MIS1, but temperate species appeared in larger numbers in the glacial period.
3) The sea surface temperature (SST) estimated by the transfer function FP12E shows that the summer SST ranges from 27.0 to 29.6℃ and the winter SST from 18.2 to 27.0℃. The comparison of SST data between the southern and northern SCS shows that SST in the southern SCS is higher than that in the northern SCS. The SST difference is more obvious in winter.
4) The thermocline data show no obvious fluctuations during MIS3MIS2, but the depth deepened gradually during the transitional period from the glacial to the postglacial.

李小艳. 南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录[J]. 沉积学报, 2011, 29(3): 572-579.

引用本文:

李小艳. 南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录[J]. 沉积学报, 2011, 29(3): 572-579.

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南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录

通讯作者:
李小艳

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Evolutionary Paleoceanographic Characteristics in the Northern South China Sea Since Late Pleistocene: Evidence from Core N31

Corresponding author: LI Xiaoyan

计量

目录

南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录

海洋沉积与环境地质国家海洋局重点实验室山东青岛 266061

通讯作者: 李小艳

English Abstract

Evolutionary Paleoceanographic Characteristics in the Northern South China Sea Since Late Pleistocene: Evidence from Core N31

Key Lab of Marine Sedimentology and Environmental Geology, SOA, Qingdao Shandong 266061

Corresponding author: LI Xiaoyan

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南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录

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Evolutionary Paleoceanographic Characteristics in the Northern South China Sea Since Late Pleistocene: Evidence from Core N31

Corresponding author: LI Xiaoyan

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南海北部晚更新世以来的古海洋环境演化特征①——来自N31柱样的沉积记录

海洋沉积与环境地质国家海洋局重点实验室 山东青岛 266061

通讯作者: 李小艳

English Abstract

Evolutionary Paleoceanographic Characteristics in the Northern South China Sea Since Late Pleistocene: Evidence from Core N31

Key Lab of Marine Sedimentology and Environmental Geology, SOA, Qingdao Shandong 266061

Corresponding author: LI Xiaoyan

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通讯作者:
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海洋沉积与环境地质国家海洋局重点实验室山东青岛 266061