中国科学院南海海洋研究所机构知识库
Advanced  
SCSIO OpenIR  > 中科院边缘海地质重点实验室  > 期刊论文
学科主题: Geosciences, Multidisciplinary; Paleontology
题名: Quaternary palaeoceanographic changes in the northern South China Sea (ODP Site 1146): radiolarian evidence
作者: Wang, RJ ; Clemens, S ; Huang, BQ ; Chen, MH
关键词: surface productivity ; winter monsoon ; radiolarians ; Quaternary ; ODP site 1146 ; northern South China Sea
刊名: JOURNAL OF QUATERNARY SCIENCE
发表日期: 2003
卷: 18, 期:8, 页:745-756
收录类别: sci
部门归属: Tongji Univ, Lab Marine Geol, Shanghai 200092, Peoples R China; Brown Univ, Providence, RI 02912 USA; Chinese Acad Sci, S China Sea Inst Oceanol, Open Lab Marginal Sea Geol & Paleoenvironm, Guangzhou 510301, Peoples R China
项目归属: 海洋地质
摘要: The abundance and accumulation rates of siliceous microfossils in the northern South China Sea, including radiolarians, diatoms and sponge spicules, increased during most glacial intervals within the past 1100 kyr. Similar trends are observed in the index of thermocline surface radiolarians (TSR), diatom accumulation rates (DAR), charcoal accumulation rates (CAR) and the abundance of radiolarian species Cycladophora davisiana davisiana. Decreasing sea-surface temperature accompanied by increased seasonality since 900 ka is indicated by a decline in the tropical radiolarian assemblage, including Tetrapyle octacantha and Octopyle stenozona, and by an increase in the subtropical assemblage, including Pterocotys zancleus, Peromelissa phalacra and Ommatartuts tetrathalamus tetrathalamus. Rapid increases at about 800 to 700 ka of siliceous microfossils, charcoal, subsurface and intermediate radiolarians, as well as the TSR index and the DAR, imply a fundamental shift in climate and a shoaling thermocline. Although these fundamental changes in the silicious fauna and flora of the South China Sea take place within the context of a developing 100-kyr cycle, they do not change in step with changing sea-level as indicated by marine delta(18)O. This is most clearly illustrated by the step-like increase in silica accumulation (radiolaria, diatoms and sponge spicules) at 680 ka. Rather, these fundamental changes probably reflect intensified surface productivity associated with enhanced East Asian winter-monsoon circulation. Copyright (C) 2003 John Wiley Sons, Ltd.
原文出处: 查看原文
WOS记录号: WOS:000187670300006
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/4734
Appears in Collections:中科院边缘海地质重点实验室_期刊论文

Files in This Item: Download All
File Name/ File Size Content Type Version Access License
Quaternary palaeoceanographic changes in the northern South China Sea (ODP Site 1146) radiolarian evidence.pdf(463KB)----开放获取--View Download

Recommended Citation:
Wang, RJ; Clemens, S; Huang, BQ; Chen, MH.Quaternary palaeoceanographic changes in the northern South China Sea (ODP Site 1146): radiolarian evidence,JOURNAL OF QUATERNARY SCIENCE,2003,18(8):745-756
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Wang, RJ]'s Articles
[Clemens, S]'s Articles
[Huang, BQ]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wang, RJ]‘s Articles
[Clemens, S]‘s Articles
[Huang, BQ]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Quaternary palaeoceanographic changes in the northern South China Sea (ODP Site 1146) radiolarian evidence.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院南海海洋研究所 - Feedback
Powered by CSpace