气候变化领域集成服务门户(CCPortal): Joint modeling of lithosphere and mantle dynamics: Evaluation of constraints from global tomography models

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DOI	10.1002/2015JB012188
	Joint modeling of lithosphere and mantle dynamics: Evaluation of constraints from global tomography models
	Wang, Xinguo; Holt, William E.; Ghosh, Attreyee
通讯作者	Wang, XG (通讯作者)
发表日期	2015
ISSN	2169-9313
EISSN	2169-9356
起始页码	8633
结束页码	8655
卷号	120 期号:12
英文摘要	With the advances in technology, seismological theory, and data acquisition, a number of high-resolution seismic tomography models have been published. However, discrepancies between tomography models often arise from different theoretical treatments of seismic wave propagation, different inversion strategies, and different data sets. Using a fixed velocity-to-density scaling and a fixed radial viscosity profile, we compute global mantle flow models associated with the different tomography models and test the impact of these for explaining surface geophysical observations (geoid, dynamic topography, stress, and strain rates). We use the joint modeling of lithosphere and mantle dynamics approach of Ghosh and Holt (2012) to compute the full lithosphere stresses, except that we use HC for the mantle circulation model, which accounts for the primary flow-coupling features associated with density-driven mantle flow. Our results show that the seismic tomography models of S40RTS and SAW642AN provide a better match with surface observables on a global scale than other models tested. Both of these tomography models have important similarities, including upwellings located in Pacific, Eastern Africa, Iceland, and mid-ocean ridges in the Atlantic and Indian Ocean and downwelling flows mainly located beneath the Andes, the Middle East, and central and Southeast Asia.
关键词	GRAVITATIONAL POTENTIAL-ENERGY LATERAL VISCOSITY VARIATIONS SHEAR-VELOCITY PLATE MOTIONS STRESS-FIELD CRUSTAL CORRECTIONS SEISMIC TOMOGRAPHY EARTHS MANTLE SURFACE CONVECTION
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000372204600037
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/258568
推荐引用方式 GB/T 7714	Wang, Xinguo,Holt, William E.,Ghosh, Attreyee. Joint modeling of lithosphere and mantle dynamics: Evaluation of constraints from global tomography models[J]. 中国科学院青藏高原研究所,2015,120(12).
APA	Wang, Xinguo,Holt, William E.,&Ghosh, Attreyee.(2015).Joint modeling of lithosphere and mantle dynamics: Evaluation of constraints from global tomography models.JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH,120(12).
MLA	Wang, Xinguo,et al."Joint modeling of lithosphere and mantle dynamics: Evaluation of constraints from global tomography models".JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH 120.12(2015).