SCSIO OpenIR  > 中科院边缘海地质重点实验室
High-precision TIMS U-series and AMS C-14 dating of a coral reef lagoon sediment core from southern South China Sea
Yu, KF; Zhao, JX; Wang, PX; Shi, Q; Meng, QS; Collerson, KD; Liu, TS; kefuyu@sesio.ac.cn; pxwang@online.sh.cn; shiqi@scsio.ac.cn; k.collerson@uq.edu.au; tsliu@public.bta.net.cn
2006
发表期刊QUATERNARY SCIENCE REVIEWS
ISSN0277-3791
卷号25期号:17-18页码:2420-2430
摘要Accurate dating of lagoon sediments has been a difficult problem, although lagoon profiles, usually with high deposition rates, have a great potential for high-resolution climate reconstruction. We report 26 high-precision TIMS U-series dates (on 25 coral branches) and five AMS C-14 dates (on foraminifera) for a 15.4-m long lagoon core from Yongshu Reef, Nansha area, southern South China Sea. All the dates are in the correct stratigraphical sequence, providing the best chronology so far reported for lagoon deposits. The results reveal a similar to 4000-a continuous depositional history, with sedimentation rates varying from 0.8 to 24.6 mm a(-1), with an average of 3.85 mm a(-1), which corresponds to an average net carbonate accumulation rate of similar to 2700 g CaCO3 m(-2) a(-1), significantly higher than the mean value (800 +/- 400 g CaCO3 m(-2) a(-1)) used for lagoons in general in previous studies of global carbonate budget. Episodes of accelerated depositions within the last 1000 years correlate well with strong storm events identified by U-series dates of storm-transported coral blocks in the area. However, in the longer term, the sedimentation rates during the past 1000 years were much higher than earlier on, probably due to more vigorous wave-reef interaction as a result of relative sea-level fall since 500 AD and expansion of reef flat area, supplying more sediments. The coral TIMS U-series ages and foraminifera AMS 14C dates reveal intriguing apparent "radiocarbon reservoir ages" (R) from 572 to 1052 years, which are much higher than global mean values of similar to 400 years. (c) 2006 Elsevier Ltd. All rights reserved.
部门归属Chinese Acad Sci, S China Sea Inst Oceanol, Guangzhou 510301, Peoples R China; Univ Queensland, CMM, Radiogen Isotope Lab, Brisbane, Qld 4072, Australia; Tongji Univ, Lab Marine Geol, Shanghai 200092, Peoples R China; Chinese Acad Sci, Inst Rock & Soil Mech, Wuhan 430071, Peoples R China; Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
学科领域Geography, Physical ; Geosciences, Multidisciplinary
URL查看原文
收录类别sci
资助项目海洋地质
WOS记录号WOS:000240819000025
引用统计
被引频次:22[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/4398
专题中科院边缘海地质重点实验室
通讯作者kefuyu@sesio.ac.cn; pxwang@online.sh.cn; shiqi@scsio.ac.cn; k.collerson@uq.edu.au; tsliu@public.bta.net.cn
推荐引用方式
GB/T 7714
Yu, KF,Zhao, JX,Wang, PX,et al. High-precision TIMS U-series and AMS C-14 dating of a coral reef lagoon sediment core from southern South China Sea[J]. QUATERNARY SCIENCE REVIEWS,2006,25(17-18):2420-2430.
APA Yu, KF.,Zhao, JX.,Wang, PX.,Shi, Q.,Meng, QS.,...&tsliu@public.bta.net.cn.(2006).High-precision TIMS U-series and AMS C-14 dating of a coral reef lagoon sediment core from southern South China Sea.QUATERNARY SCIENCE REVIEWS,25(17-18),2420-2430.
MLA Yu, KF,et al."High-precision TIMS U-series and AMS C-14 dating of a coral reef lagoon sediment core from southern South China Sea".QUATERNARY SCIENCE REVIEWS 25.17-18(2006):2420-2430.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
High-precision TIMS (361KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。