海绵骨针释光年代学探索及其对晚更新世以来南极绕极流演化的制约

批准号:
41976073
项目类别:
面上项目
资助金额:
64.0 万元
负责人:
姜涛
依托单位:
学科分类:
海洋地质学与地球物理学
结题年份:
2023
批准年份:
2019
项目状态:
已结题
项目参与者:
姜涛
国基评审专家1V1指导 中标率高出同行96.8%
结合最新热点,提供专业选题建议
深度指导申报书撰写,确保创新可行
指导项目中标800+,快速提高中标率
微信扫码咨询
中文摘要
国际大洋发现计划(IODP)369航次在南极高纬地区的钻探,为深入认识地质历史时期南极绕极流的演化及其对全球气候变化影响提供了难得的机会,但高精度年代地层框架的建立是其主要制约因素.本研究拟对所获取的3个钻孔密封避光保存的完整岩心进行沉积学分析基础上,系统阐明硅质海绵骨针的释光性质,并通过与碳14和常规石英光释光测年等方法对比、详细探讨铀系不平衡对环境剂量率的影响等,进一步验证海绵骨针光释光测年精度和可靠性,进而探索出一种针对远离大陆、缺少陆缘碎屑的深海沉积物测年的新方法——硅质海绵骨针光释光测年. 研究结果不但可以丰富释光年代学,为海洋地质研究提供一种新的高精度测年方法,而且通过结合沉积物中所蕴含的洋流演化信息的系统分析,有望重建更长时间尺度的南极绕极流演化过程及其与全球气候变化的响应关系.
英文摘要
The ocean drilling by International Ocean Discovery Program (IODP) Expedition 369 in high latitudes of Antarctica provides a rare opportunity for further understanding the evolution of Antarctic circumpolar current and its impacts on global climate change in more longer geological time. However, the absence of a effective high-precision chronological framework is its key constraints. Based on the sedimentological analysis of the acquired cores from three boreholes, which have been sealed in alumium bags to avoid sunlight, the study will focus on illustrating the luminescence characteristics of siliceous sponge spicules in the deep see sediments. The luminescence results of spone spicules will be compared with AMS14C dating and conventional quartz luminescence dating results, and the influence evaluation of uranium imbalance on environmental dose rate will also be discussed in details for identifying the accuracy and reliability of the luminescence dating on sponge spicules. As a result, hopefully a new dating method for deep sea sediments, which are far away from continents with lacking continental compositions, would be established. It is called siliceous sponge spicules luminescence dating. The results not only enrich the luminescence chronology and provide a new high-precision dating method for marine geology researches, but also are helpful to reconstruct the evolution of Antarctic circumpolar current at a longer geological time scale and its subsequent responses to global climate change, which have been recorded in the deep sea sediments.
期刊论文列表
专著列表
科研奖励列表
会议论文列表
专利列表
DOI:10.1130/b36559.1
发表时间:2023
期刊:GSA Bulletin
影响因子:--
作者:Licheng Cao;Lei Shao;Douwe J.J. van Hinsbergen;Tao Jiang;Di Xu;Yuchi Cui
通讯作者:Yuchi Cui
DOI:10.1016/j.earscirev.2023.104572
发表时间:2023-09
期刊:Earth-Science Reviews
影响因子:12.1
作者:Jie He;E. Garzanti;Tao Jiang;M. Barbarano;Entao Liu;Si Chen;Yuantao Liao;Xiaopeng Li;Hua W
通讯作者:Jie He;E. Garzanti;Tao Jiang;M. Barbarano;Entao Liu;Si Chen;Yuantao Liao;Xiaopeng Li;Hua W
DOI:10.1016/j.jngse.2020.103629
发表时间:2020-12
期刊:Journal of Natural Gas Science and Engineering
影响因子:--
作者:Cong Cheng;T. Jiang;Z. Kuang;Chengzhi Yang;Cheng Zhang;Yunlong He;Zhe Cheng;D. Tian;Peng X
通讯作者:Cong Cheng;T. Jiang;Z. Kuang;Chengzhi Yang;Cheng Zhang;Yunlong He;Zhe Cheng;D. Tian;Peng X
DOI:10.1007/s13131-022-2125-y
发表时间:2023-02
期刊:Acta Oceanologica Sinica
影响因子:1.4
作者:Peng Xiong;Cong Cheng;Z. Kuang;Jinfeng Ren;Jinqiang Liang;H. Lai;Zigui Chen;Jiang Lu;Xiaoyu Fang;Tao Jiang
通讯作者:Peng Xiong;Cong Cheng;Z. Kuang;Jinfeng Ren;Jinqiang Liang;H. Lai;Zigui Chen;Jiang Lu;Xiaoyu Fang;Tao Jiang
DOI:10.3799/dqkx.2022.094
发表时间:2022
期刊:Earth Science-Journal of China University of Geosciences
影响因子:--
作者:Zigui Chen;Tao Jiang;Z. Kuang;Cong Cheng;Peng Xiong;Yue Chen
通讯作者:Zigui Chen;Tao Jiang;Z. Kuang;Cong Cheng;Peng Xiong;Yue Chen
Naturaliste海台基底玄武岩中碳酸盐岩脉特征及其对冈瓦纳大陆裂解过程的制约-IODP369航次后研究
- 批准号:42276073
- 项目类别:面上项目
- 资助金额:55万元
- 批准年份:2022
- 负责人:姜涛
- 依托单位:
南海中央海盆重力流沉积物来源及沉积过程研究:碎屑锆石U-Pb测年物源示踪分析
- 批准号:41476032
- 项目类别:面上项目
- 资助金额:97.0万元
- 批准年份:2014
- 负责人:姜涛
- 依托单位:
晚更新世以来南海海槽重力流沉积事件及其对地震和板块俯冲过程的响应
- 批准号:40806019
- 项目类别:青年科学基金项目
- 资助金额:20.0万元
- 批准年份:2008
- 负责人:姜涛
- 依托单位:
国内基金
海外基金
