Establishment and 3-D Visualization of Deep Structures in Foreland Thrust Belts: Taking the Jinfosi Thrust Belt in the Southern Margin of Jiuquan Basin
详细信息
- 责任者：Zhu Min (Department of Earth Sciences ; Zhejiang University ; Structural Research Center of Oil & Gas-Bearing Basin ; Ministry of Eaducation ; Hangzhou 310027 ; China) ; Chen Hanlin
- 刊名：Geological Journal of China Universities
- 出版年：2011
- 卷期：17(2)
- 关键词：前陆盆地 ; foreland basins ; 褶皱冲断带 ; fold and thrust belts ; 酒泉盆地 ; Jiuquan Basin
- 页码：p.287-296
- 图表：11 illus., 3 tables, 15 refs.
- 分类号：0300
- issnNo：ISSN1006-7493
- isbnNo：CN32-1440/P
摘要
Jinfosi Pluton is seismically highly reflective medium and it has been difficult to obtain velocity data of the pluton directly. The authors used the velocity data that were derived in laboratory under high temperatures and pressures simulating conditions at depth to quantify the relationship between velocity and depth underground. Based on the new depth data and interpretation, GOCAD software was employed to establish a 3-D geological model, which allowed further discussion of the deep structures. The model shows that the Mesozoic-Cenozoic rocks form a deeply buried monocline which dips SW and structural highs are relatively deeply buried with dips diminishing toward the two limbs.