Regional Stress Fields under Tibet from 3D Global Flow Simulation

• 作 者: 张斯奇 David A Yuen 张怀 石耀霖
• 机 构: Laboratory of Computational Geodynamics,Graduate University of Chinese Academy of Sciences,Earth Sys
• 出 处: Journal of Earth Science
• 发表日期: 2011年02期
• 关键词: Tibet collision rheology plateau understood Tibetan rounding mantle continental

Tibetan area is the most active continental collision zone on earth.Several major earth-quakes occurred around the boundaries of Tibetan plateau and caused massive damages and casualties.The dynamics of this area is not well understood due to the complex structure of Tibet and its sur-rounding area.In this study,a 3D global flow simulation with only viscous rheology is applied to studying the stress distribution in this area,and the interaction between Tibet and its surrounding areas is investigated.Finally,the possibility of combining regional modeling with global models is also discussed.

Tibetan area is the most active continental collision zone on earth. Several major earth-quakes occurred around the boundaries of Tibetan plateau and caused massive damages and casualties. The dynamics of this area is not well understood due to the complex structure of Tibet and its sur -rounding area.In this study, a 3D global flow simulation with only viscous rheology is applied to studying the stress distribution in this area, and the interaction between Tibet and its surrounding areas is investigated .Finally, the possibility of combining regional modeling with global models is also discussed.