地震地质 ›› 1995, Vol. 17 ›› Issue (1): 35-43.

• 科研简报 • 上一篇    下一篇

鲜水河断裂带区域第四纪构造应力场的分期研究

谢富仁, 祝景忠, 舒赛兵   

  1. 国家地震局地壳应力研究所, 北京, 100085
  • 收稿日期:1993-05-31 修回日期:1994-06-30 出版日期:1995-03-08 发布日期:2009-11-25
  • 基金资助:
    地震科学联合基金资助(89217和9100014)

STUDY OF DIFFERENT-STAGE QUATERNARY TECTONIC STRESS FIELD FOK THE XIANSHUIHE FAULT ZONE

Xie Furen, Zhu Jingzhong, Shu Saibing   

  1. Institute of Crustal Dynamics, SSB, Beijing 100085
  • Received:1993-05-31 Revised:1994-06-30 Online:1995-03-08 Published:2009-11-25

摘要: 利用断层滑动方向资料反演构造应力张量的分期计算方法,获得鲜水河断裂带区域第四纪以来两期主要构造应力作用:第1期为早~中更新世,构造应力作用以北东-南西向挤压为特征;第Ⅱ期自晚更新世至今,构造应力作用以近东西向挤压和近南北向拉张为特征。

关键词: 鲜水河断裂, 构造应力场, 断层滑动, 第四纪

Abstract: By use of fault slip data in invesion of using different-stage tectonic stress tensors,we have obtained two stages of tectonic Quaternary stress field of the Xianshuihe fault zone. In the first stage(from early-mid Pleistocene),the tectonic stress field is characteristic of NE-SW compression. In the second phase(from late-Pleistocene to the present),the tectonic stress field is mainly characteristic of nearly E-W compression and nearly S-N extension. In this stress field,the Xi-anshuihe fault mainly shows a left-lateral slip.

Key words: Xianshuihe fault, Tectonic stress field, Fault slip, Quaternary