可可托海——二台断裂带当今位移特征初探

A PRELIMINARY RESEARCH ON THE RECENT DISPLACEMENT OF THE KEKETUOHAI-ERTAI FAULT ZONE

本文对布设在著名的可可托海~二台断裂带上的三处三角观测场地和布设在额尔齐斯断裂带上的一处三角观测场地的三期观测资料进行了分析,提出了该断裂带当今的位移特征及构造应力特征,并对该区域构造活动的其它特性也做了有益的讨论。事实证明,该地区是大陆内部地壳活动剧烈的区域之一。通过对测量资料的仔细分析还可发现:在力源一定的条件下,由于断层各段走向的不同,同一断层各段所表现的张压特性可完全相反。

In this paper,observed data in the triangular fields of Keketuohai-Ertai and Erqis faults have been analysed,suggesting the recent characteristics of displacement and tectonic stress along the faults and discussed some other features of regional tectonic activity.lt is proved that tMs region is one of the most active places in inner continent.From this analyses of the measurement,we have also found:when the tectonic force is constant,tension-pressure characteristics along the same fault can be completely different because of different trending of each segment along the fault.