Current plate velocities relative to hotspots: implications for hotspot   motion, mantle viscosity and global reference frame

doi:10.1016/S0012-821X(01)00351-X

CORC > 北京大学 > 地球与空间科学学院

	Current plate velocities relative to hotspots: implications for hotspot motion, mantle viscosity and global reference frame
	Wang, SM ; Wang, R
刊名	earth and planetary science letters
	2001
关键词	hot spots plate tectonics mantle convection viscosity models SEISMIC EVIDENCE ATLANTIC HOTSPOTS CONVECTION PLUMES HAWAIIAN HOTSPOT POLAR WANDER PACIFIC SCALE ANTARCTICA KINEMATICS TECTONICS
DOI	10.1016/S0012-821X(01)00351-X
英文摘要	The HS2-NUVEL1 model being used for current plate velocities relative to hotspots is shown to be generally inconsistent with the observed hotspot data sampled from non-Pacific regions. Instead, we determine the T22A model, which provides a good and consistent fit to the trends of globally distributed hotspot traces, but predicts plate velocities at hotspots systematically lower than the observed rates of hotspot volcanic migrations. As a result, it implies that the return flow in the lower mantle has a velocity about 1/4 of the plate velocity, and that the lower mantle is about 20 times more viscous than the upper mantle. Although hotspots are not relatively fixed, they do define a global reference frame for plate motion and mantle convection. (C) 2001 Elsevier Science B.V. All rights reserved.; Geochemistry & Geophysics; SCI(E); 22; ARTICLE; 3-4; 133-140; 189
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/155462]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Wang, SM,Wang, R. Current plate velocities relative to hotspots: implications for hotspot motion, mantle viscosity and global reference frame[J]. earth and planetary science letters,2001.
APA	Wang, SM,&Wang, R.(2001).Current plate velocities relative to hotspots: implications for hotspot motion, mantle viscosity and global reference frame.earth and planetary science letters.
MLA	Wang, SM,et al."Current plate velocities relative to hotspots: implications for hotspot motion, mantle viscosity and global reference frame".earth and planetary science letters (2001).