دورية أكاديمية
أعرض في EDS

Gravity evidence of underplating in the northeastern margin area of Qinghai-Tibet plateau

التفاصيل البيبلوغرافية
العنوان: Gravity evidence of underplating in the northeastern margin area of Qinghai-Tibet plateau
المؤلفون: Guo Shusong, Hao Ming, Zhu Yiqing
المصدر: Geodesy and Geodynamics, Vol 3, Iss 3, Pp 46-50 (2012)
بيانات النشر: KeAi Communications Co., Ltd., 2012.
سنة النشر: 2012
المجموعة: LCC:Geodesy
LCC:Geophysics. Cosmic physics
مصطلحات موضوعية: northeastern margin of Tibet plateau, vertical crustal-deformation rate, gravity variation field, crust-mantle coupling, underplating, Geodesy, QB275-343, Geophysics. Cosmic physics, QC801-809
الوصف: Based on leveling data in 1972–2011 and relative-gravity data in 1993–2011, we obtained a long-term vertical crustal-deformation rate of 1. 62 mm/a and a relative-gravity variation rate of 0.62×10 −8 ms−2a−1 for the northeastern margin area of Qinghai-Tibet plateau. After removing the contributions from the observed vertical movement and inferred surface denudation, we obtain a gravity-variation rate of 0.73×10−8 ms−2a−1 attributable to the mass changes beneath the crust. This positive change suggests that the total mass under the observation stations was gradually increasing. We consider this result to be the gravitational evidence of under-plating beneath the study area, and propose that the underplating was caused by collision betwen the Indian plate and Tibetan plateau and by gravitation-potential induced deviatoric stress.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1674-9847
Relation: http://www.sciencedirect.com/science/article/pii/S1674984715301270; https://doaj.org/toc/1674-9847
DOI: 10.3724/SP.J.1246.2012.00046
URL الوصول: https://doaj.org/article/500b988cd92c4a5298a92ae8b5576e41
رقم الأكسشن: edsdoj.500b988cd92c4a5298a92ae8b5576e41
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:16749847
DOI:10.3724/SP.J.1246.2012.00046