Asset Details
Do you wish to reserve the book?
汶川地震GPS形变约束的破裂分段特征及滑移
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
汶川地震GPS形变约束的破裂分段特征及滑移
Do you wish to request the book?
汶川地震GPS形变约束的破裂分段特征及滑移
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
汶川地震GPS形变约束的破裂分段特征及滑移
2011
Overview
为了解2008年汶川地震破裂分段特征及滑移，采用弹性位错模型和模拟退火算法，数值模拟汶川震区密集的GPS同震形变。结果表明，GPS同震形变场至少需要用铲状的位于映秀一北川之间的五个断裂加上灌县一江油断裂来模拟。该模型对GPS数据的符合程度与汶川地震滑动分布模型相当，基本反映了汶川地震破裂特征。映秀一北川断裂总长255～294km。南段以逆冲为主，分上下两层，最深达30km。中段右旋走滑和逆冲都很大，而北段以右旋走滑为主。映秀段地震周期最短为3000a。破裂上层深度14km可能是龙门山中央断裂的闭锁深度。汶川地震可能源于相邻块体的相对运动和挤压、深部滑脱或浅部闭锁，在薄弱构造处首先爆发地震。
