洋壳活动断层特征和动力作用  

Characteristics and Dynamics of Active Oceanic Faults

作　　者：马庆尊[1] 薄万举[1] 冯胜涛[1] 尹海权[1] 周伟[1] 于华之 王佳龙[1] MA Qingzun;BO Wanju;FENG Shengtao;YIN Haiquan;ZHOU Wei;YU Huazhi;WANG Jialong(The First Monitoring and Application Center,CEA,7 Naihuo Road,Tianjin 300180,China)

机构地区：[1]中国地震局第一监测中心,天津市300180

出　　处：《大地测量与地球动力学》2022年第4期410-415,共6页Journal of Geodesy and Geodynamics

基　　金：国家重点研发计划(2018YFC1503606)。

摘　　要：对洋壳活动断层特征进行分析,认识到洋壳活动断层内存在洋壳生长,内部存在对称、褶皱和火山构造。洋壳生长不仅会形成新洋壳,而且会释放热量,产生推挤力,并在洋壳地形上留下演化痕迹。断层内部洋壳生长会促进断层两侧洋壳发生相对运动,众多洋壳断层活动的综合影响造成洋壳块体的相对运动。洋中脊是洋壳生长的产物,转换断层区域是洋壳块体现今相对运动的分界区带。Based on the characteristics analysis of active oceanic faults,we find oceanic crust growth,symmetrical structure,fold structure and volcanic structure in active oceanic crust fault.Oceanic crust faults not only release heat,but also create pushing forces that grow new oceanic crust and leave traces of evolution on the oceanic crust topography.The growth of oceanic crust inside the fault promotes the relative movement of oceanic crust on both sides of the fault,and the comprehensive influence of the activities of many oceanic crust faults causes the relative movement of oceanic crust blocks.The mid-oceanic ridge is the product of oceanic crust growth and the transform fault region is the boundary zone of current relative movement of oceanic crust blocks.

关 键 词：洋壳活动断层 洋壳生长 褶皱 火山 

分 类 号：P313[天文地球—固体地球物理学]