气候变化领域集成服务门户(CCPortal): Gravity Gradient Inversion of Gravity Field and Steady-State Ocean Circulation Explorer Satellite Data for the Lithospheric Density Structure in the Qinghai-Tibet Plateau Region and the Surrounding Regions

CCPortal

DOI	10.1029/2020JB021291
	Gravity Gradient Inversion of Gravity Field and Steady-State Ocean Circulation Explorer Satellite Data for the Lithospheric Density Structure in the Qinghai-Tibet Plateau Region and the Surrounding Regions
	Tian Y.; Li H.; Wang Y.; Ye Q.; Guo A.
发表日期	2021
ISSN	21699313
卷号	126 期号:6
英文摘要	The continuous uplift and evolution of the Qinghai-Tibet Plateau region (TPR) represents one of the most important Cenozoic geological events on Earth. The deformation mechanism of the lithosphere in the TPR is still under debate. Relevant viewpoints can be informed by investigations of the lithospheric density structure in the Qinghai-Tibet Plateau and surrounding regions (TP-SRs). Considering investigating the fine-scale lithospheric density structure of the large-scale areas, the GOCE satellite data covering entire TP-SRs are used in this study. GOCE gravity gradient data are first subjected to several corrections. Then, based on gravity gradient curvature (SI) calculation complemented with the preconditioned conjugate gradient algorithm, the distribution of SI and the lithospheric density structure at depths of 0–80 km in TP-SRs are obtained. The effects of temperature differences and material composition on the lithospheric density distribution are further distinguished. The results show that in the crust, the density anomalies in the TPR are blocked by the surrounding hard blocks. In the upper mantle, the distribution of the density anomalies in the TPR is predominantly affected by the northward subduction of the Indian Plate and the high heat flux environment. The Longmen Shan Thrust Belt is found to have penetrated the lower crust but has not reached the depth of the upper mantle. The density anomalies in the basins on the northern side of the TPR exhibit features indicative of independent stable blocks. © 2021. American Geophysical Union. All Rights Reserved.
英文关键词	density structure; GOCE; gravity gradient; Qinghai-Tibet plateau
语种	英语
来源期刊	Journal of Geophysical Research: Solid Earth
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/187054
作者单位	Ocean College, Minjiang University, Fuzhou, China; State Key Laboratory of Geodesy Earth’s Dynamics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, China; University of Chinese Academy of Sciences, Beijing, China; Institute of Geophysics, China Earthquake Administration, Beijing, China; Beijing Baijiatuan Earth Science National Observation and Research Station, Beijing, China
推荐引用方式 GB/T 7714	Tian Y.,Li H.,Wang Y.,et al. Gravity Gradient Inversion of Gravity Field and Steady-State Ocean Circulation Explorer Satellite Data for the Lithospheric Density Structure in the Qinghai-Tibet Plateau Region and the Surrounding Regions[J],2021,126(6).
APA	Tian Y.,Li H.,Wang Y.,Ye Q.,&Guo A..(2021).Gravity Gradient Inversion of Gravity Field and Steady-State Ocean Circulation Explorer Satellite Data for the Lithospheric Density Structure in the Qinghai-Tibet Plateau Region and the Surrounding Regions.Journal of Geophysical Research: Solid Earth,126(6).
MLA	Tian Y.,et al."Gravity Gradient Inversion of Gravity Field and Steady-State Ocean Circulation Explorer Satellite Data for the Lithospheric Density Structure in the Qinghai-Tibet Plateau Region and the Surrounding Regions".Journal of Geophysical Research: Solid Earth 126.6(2021).