青藏高原东北部地壳浅部块体物质运动的基本特征及其与南北地震带(北段)关系之研究

STUDY ON THE MAIN CHARACTERISTICS OF THE BLOCK MOVEMENT OF UPPER CRUST IN THE NORTHEAST OF QINGHAI-XIZANG PLATEAU AND THE RELATION WITH THE NORTH SECTION OF THE NORTHSOUTH SEISMIC ZONE

本文根据青藏高原东北部震源深度、震源机制及其周边断裂晚更新世晚期以来的运动特征等大量资料分析,讨论了本区地壳浅部块体物质运动的基本特征、西秦岭北缘断裂带构造地貌滞后效应现象及其原因,同时探讨了大闸口内强震成因,成带等问题。

Based on the focal depth, focal mechanism of earthquakes in the northeast of Qinghai-Xizang Plateau and the movement features of the faults in the surrounding area since Late Epipleistocene, this paper discussed both the main characteristics of the block movement of upper crust in this area, and the phenomena and the causation of the geomorphological retardation effects in the active tectonic zone along the north edge of West Qinghai mountain, as well as the causation and the zonation of strong earthquakes generated in the area somewhat like a sluice gate.