地震地质 ›› 2006, Vol. 28 ›› Issue (4): 579-588.

• 研究论文 • 上一篇    下一篇

临潼-长安断裂错距及其分布特征

冯希杰, 戴王强, 师亚芹, 李晋, 任隽, 韩恒悦   

  1. 陕西省地震局, 西安, 710068
  • 收稿日期:2006-08-31 修回日期:2006-11-13 出版日期:2006-12-21 发布日期:2009-08-27
  • 作者简介:冯希杰,男,1962年生,1983年毕业于长春地质学院水文地质与工程地质学系,1990年在西安地质学院获得博士学位,研究员,主要从事地震地质研究,电话:029-88465331,E-mail:xijief@yahoo.com.cn.
  • 基金资助:

    国家发展与改革委员会发改投资“城市活断层试验探测”项目(20041138)资助

DISLOCATION AND DISTRIBUTION CHARACTERISTICS OF THE LINTONG-CHANG'AN FAULT

FENG Xi-jie, DAI Wang-qiang, SHI Ya-qin, LI Jin, REN Jun, HAN Heng-yue   

  1. Earthquake Administration of Shaanxi Province, Xi'an 710068, China
  • Received:2006-08-31 Revised:2006-11-13 Online:2006-12-21 Published:2009-08-27

摘要:

临潼-长安断裂是渭河盆地内部骊山凸起与周至-户县凹陷之间一条重要的边界性断裂.通过大范围自然冲沟、人工取土场、道路开挖边坡和路堑的野外观察,新发现临潼-长安断裂露头40余处.基于各露头不同年代古土壤标志层错距的量测,获得了晚始新世以来该断裂的位移分布.第四纪以来的断层位移分布显示出该断裂中段断距较大,活动较为强烈.

关键词: 临潼-长安断裂, 古近系, 新近系, 第四系, 错距, 渭河盆地

Abstract:

Lintong-Chang'an Fault is an important boundary fault between Lishan uplift and Zhouzhi-Huxian depression in Weihe basin.By the field survey to the natural gullies,the earth fetching areas,and the excavated slope and chasm for road foundation,we discovered 40 outcrops of the Lintong-Chang'an Fault.According to the measurements of dislocation of the various periods' paleosoil horizons,we get the Quaternary dislocation distribution of the fault,which shows that the fault dislocation in the middle segment is the biggest,so is its activity along this segment.

Key words: Lintong-Chang’an Fault, Paleocene, Neocene, Quaternary, dislocation, Weihe basin

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