Three-Dimensional Evolution Features of the Pull-Apart Basin
详细信息
- 责任者：Zhang Zhiwu (Institute of Mineral Resources Research ; China Metallurgical Geology Bureau ; Beijing 100025 ; China) ; Fu Bihong
- 刊名：Acta Geoscientica Sinica
- 出版年：2011
- 卷期：32(2)
- 关键词：拉分盆地 ; pull-apart basins ; 三维模型 ; three-dimensional models ; 新疆 ; Xinjiang
- 页码：p.251-256
- 图表：4 illus., 25 refs.
- 分类号：0300
- issnNo：ISSN1006-3021
- isbnNo：CN11-3474/P
摘要
In this paper, the authors summarized the geometric and geomorphologic features of the evolution of the pull-apart basin based on previous research results, and chose a small pull-apart basin along the Fuyun fault to study its geometric and geomorphologic characteristics. Based on the survey using the differential global positioning system (DGPS) measurement instruments— SOUTH 9600 Polaris and data processing using SOUTH GPS and SOUTH CASS7.0 software, the authors constructed the contour pattern of the basin. Then, according to the model which explains the offsetting and sinking change of the pull-apart basin before and after the earthquake, the authors calculated the depth of its detachment, which turns out to be about 40 m below the surface.