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学科主题: Oceanography
题名: Phase evolution of Holocene paleoenvironmental changes in the southern Yellow Sea: Benthic foraminiferal evidence from core C02
作者: [Fang Li ; Xiang Rong ; Liu Jianguo ; Zhang Lanlan] Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China ; [Fang Li] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China ; [Zhao Meixun] Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Peoples R China ; [Zhou Liping] Peking Univ, Dept Geog, Minist Educ, Lab Earth Surface Proc, Beijing 100871, Peoples R China ; [Zhou Liping] Peking Univ, Ctr Ocean Res, Beijing 100871, Peoples R China
通讯作者: rxiang@scsio.ac.cn
关键词: benthic foraminifera ; Holocene ; southern Yellow Sea ; paleoenvironment ; marine transgression
刊名: JOURNAL OF OCEAN UNIVERSITY OF CHINA
发表日期: 2013
卷: 12, 期:4, 页:629-638
部门归属: 海洋地质
资助者: We wish to thank all the participants and onboard staff of the spring cruise of the 973 program 2010CB428901 for providing the samples. This work was supported by the National Basic Research Program of China (973 Program 2010CB428901), and the National Natural Science Foundation of China (40976031, 91228207).
摘要: Assemblages of benthic foraminifera in a sediment core (C02) near the western margin of the southern Yellow Sea Mud were studied to decipher the phase evolution of Holocene paleoenvironmental changes associated with the Holocene marine transgression. It appears that during the early Holocene (11.2-10.1 kyr BP), the faunal was dominated by low salinity and shallow water species Cribrononion subincertum, Buccella frigida and Ammonia beccarii, reflecting a near coast depositional environment. A rapid increase of the relative abundance of Ammonia compressiuscula between 10.1-9.3 kyr BP indicates that the sea level rose rapidly during that time period. From 9.3-7.7 kyr BP, the benthic foraminiferal assemblage was dominated by high percentage of A. compressiscula, suggesting that the sea level was relatively stable. An obvious transition of benthic foraminifera, from the A. compressiuscula-dominated assemblage to an Ammonia ketienziensis-dominated assemblage, occurred between 7.7-6.2 kyr BP, possibly corresponding to a second sea level rapid rise period in the Yellow Sea during the Holocene. This transition may correspond to the gradually strengthened Yellow Sea warm current (YSWC) and finally is established the modern-type circulation in the Yellow Sea. It may also mark the formation of the Yellow Sea cold bottom water (YSCBW) during that period. Since then, the benthic foraminiferal assemblage based on core C02 was dominated by typical YSCBW species, A. ketienziensis, Astrononion italicum and Hanzawaia nipponica, at 6.2-4 kyr BP. A non-deposition period occurred since similar to 4 kyr BP, which possibly related to the hydrology changes caused by the East Asia monsoon. The two obvious benthic foraminiferal transitions recorded in core C02 during the early and middle Holocene provide evidence that the Yellow Sea has undergone a two-phase rapid sea level rise during the Holocene marine transgression.
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000326193700014
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/11104
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

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Recommended Citation:
[Fang Li; Xiang Rong; Liu Jianguo; Zhang Lanlan] Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Fang Li] Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China; [Zhao Meixun] Ocean Univ China, Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Peoples R China; [Zhou Liping] Peking Univ, Dept Geog, Minist Educ, Lab Earth Surface Proc, Beijing 100871, Peoples R China; [Zhou Liping] Peking Univ, Ctr Ocean Res, Beijing 100871, Peoples R China.Phase evolution of Holocene paleoenvironmental changes in the southern Yellow Sea: Benthic foraminiferal evidence from core C02,JOURNAL OF OCEAN UNIVERSITY OF CHINA,2013,12(4):629-638
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