世界屋脊的地震风险  

Seismic Hazard on the Roof of the World

作　　者： 史聪一(译) Marie-Luce Chevalier

机构地区：[1]中国地质科学院地质研究 [2]不详

出　　处：《国际人才交流》2023年第11期52-56,共5页International Talent

摘　　要：作为行星,地球表面被许多板块覆盖。这些板块被科学家们称为“板块构造”。大型板块(由七大板块和约20个小板块所组成)如拼图一般附着于地球表面,而由于地壳之下的地幔运动,这些板块能够在地球的表面自由移动。因此,这些板块相互碰撞(汇聚,形成“冲断层”或“逆断层”),形成山脉等地形;或相互远离(离散,形成“正断层”),形成海洋与“裂谷”等分界区;或是相向滑动(形成“转换断层”或“走滑断层”)。Planet Earth is covered by what scientists call“plate tectonics”.These large blocks(7 major ones and about 20 minor ones),like pieces of a puzzle covering the planet,freely move around the surface of the Earth thanks to tectonic forces underneath.Blocks can either collide(convergence,thrust,or reverse faults),creating topography such as mountains,or move away from each other(divergence,normal faults),creating gaps such as oceans and rifts,or they can slide past each other(transform or strike-slip fault).

关 键 词：地球表面 地震风险 转换断层 冲断层 板块构造 走滑断层 正断层 逆断层 

分 类 号：G63[文化科学—教育学]