IOCAS-IR  > 海洋地质与环境重点实验室
Estimates of effective elastic thickness at subduction zones
Yang, An1,2; Fu, Yongtao1,2
2018-06-01
发表期刊JOURNAL OF GEODYNAMICS
ISSN0264-3707
卷号117页码:75-87
通讯作者Yang, An(yangan@qdio.ac.cn)
摘要The effective elastic thickness (T-e) is an important parameter that characterizes the long-term strength of the lithosphere. Estimates of T-e at subduction zones have important tectonic and geodynamic implications, providing constraints for the strength of the oceanic lithosphere at a short-term scale. We estimated T-e values in several subduction zones worldwide by using models including both surface and subsurface loads from the analysis of free-air gravity anomaly and bathymetric data, together with a moving window admittance technique (MWAT). Tests with synthetic gravity and bathymetry data show that this method is a reliable way to recover T-e of oceanic lithosphere. Our results show that there is a noticeable reduction in the effective elastic thickness of the subducting plate from the outer rise to the trench axis for most studied subduction zones, suggesting plate weakening at the trench-outer rise of the subduction zones. These subduction zones have T-e range of 6-60 km, corresponding to a wide range of isotherms from 200 to 800 degrees C. Different trenches show distinct patterns. The Caribbean, Kuril-Japan, Mariana and Tonga subduction zones show predominantly high T-e. By contrast, the Middle America and Java subduction zones have a much lower T-e. The Peru-Chile, Aleutian and Philippine subduction zones show considerable scatter. The large variation of the isotherm for different trenches does not show dear relationship with plate weakening at the outer rise.
关键词Effective elastic thickness Flexure Oceanic lithosphere Subsurface loading Moving window admittance technique Subduction zones
DOI10.1016/j.jog.2018.04.007
收录类别SCI
语种英语
资助项目National Programme on Global Change and Air-Sea Interaction[GASI-GEOGE-02] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA1103010102] ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2015KG07] ; National Programme on Global Change and Air-Sea Interaction[GASI-GEOGE-02] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA1103010102] ; Open Fund of the Key Laboratory of Marine Geology and Environment, Chinese Academy of Sciences[MGE2015KG07]
WOS研究方向Geochemistry & Geophysics
WOS类目Geochemistry & Geophysics
WOS记录号WOS:000434748600007
出版者PERGAMON-ELSEVIER SCIENCE LTD
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/159384
专题海洋地质与环境重点实验室
通讯作者Yang, An
作者单位1.Chinese Acad Sci, Key Lab Marine Geol & Environm, Inst Oceanol, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Geol, Qingdao 266061, Peoples R China
第一作者单位中国科学院海洋研究所
通讯作者单位中国科学院海洋研究所
推荐引用方式
GB/T 7714
Yang, An,Fu, Yongtao. Estimates of effective elastic thickness at subduction zones[J]. JOURNAL OF GEODYNAMICS,2018,117:75-87.
APA Yang, An,&Fu, Yongtao.(2018).Estimates of effective elastic thickness at subduction zones.JOURNAL OF GEODYNAMICS,117,75-87.
MLA Yang, An,et al."Estimates of effective elastic thickness at subduction zones".JOURNAL OF GEODYNAMICS 117(2018):75-87.
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
Estimates of effecti(6213KB)期刊论文出版稿限制开放CC BY-NC-SA浏览
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
谷歌学术
谷歌学术中相似的文章
[Yang, An]的文章
[Fu, Yongtao]的文章
百度学术
百度学术中相似的文章
[Yang, An]的文章
[Fu, Yongtao]的文章
必应学术
必应学术中相似的文章
[Yang, An]的文章
[Fu, Yongtao]的文章
相关权益政策
暂无数据
收藏/分享
文件名: Estimates of effective elastic thickness at subduction zones.pdf
格式: Adobe PDF
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。