The Activity of the Lintong——Chang’an Fracture Zone, Xi’an City since the Late Pleistocene
详细信息
- 责任者：Li Dunpeng (College of Zijin Mining ; Fuzhou University ; Fuzhou 350108 ; China) ; Du Jianjun
- 刊名：Earth Science Frontiers
- 出版年：2013
- 卷期：20(4)
- 关键词：活动断层 ; active faults ; 断裂带 ; fracture zones ; 陕西 ; Shaanxi Province
- 页码：p.46-57
- 图表：illus., 1 table, 29 refs.
- 分类号：0300
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
Lintong-Chang’an fracture zone is an important active fault controlling the Lishan uplift and Xi’an depression in the Weihe Basin.It consists of two secondary faults,and is divided into three sections of northeastern,central and southwestern by Bahe and Zaohe.Predecessors have two kinds of different understanding of fault activity since the Late Pleistocene.In order to determine the activity of the Lintong-Chang’an fracture zone since the Late Pleistocene,the loess S1,L1S and S0 are selected to be the marker and the timescale to determine the fault vertical displacement in the study.By means of DEM geomorphological analysis and the fault outcrop survey,and combined with the crustal deformation data,the research result shows that the activity of the northeastern section is the strongest in the Lintong-Chang’an fracture zone since the Late Pleistocene,the central section is the second and the southwestern section is the weakest.It is consistent with the geomorphological differences shown by DEM in hangwall and footwall of the modern fault zone.
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