Basin-Mountain Tectonic Pattern and Hydrocarbon Exploration Domain in North Margin of Qaidam Basin

详细信息   

• 责任者：Wang Guihong （Research Institute of Petroleum Exploration & Development ; PetroChina ; Beijing 100083 ; China） ; Ma Dade
• 刊名：Petroleum Exploration and Development
• 出版年：2008
• 卷期：35(6)
• 关键词：油气勘探 ; petroleum exploration ; 盆地演化 ; basin evolution ; 柴达木盆地 ; Qaidam Basin
• 页码：p.668-673
• 图表：7 illus., 12 refs.
• 分类号：1003
• issnNo：ISSN1000-0747
• isbnNo：CN11-2360/TE

摘要

Seismic profile crossing southern boundary of Saishiteng Mountain shows the shear tectonic characteristic of fault zone at southern boundary of Saishiteng Mountain. In the west of Saishiteng, the fault zone thrusts towards top and north; in the center, the fault zone shows high angle, in the east (line 1001 profile), it represents as low-angle and basin-toward thrusted fault, which may be converted structure at the end of strike-slip faulted structure, in pattern of associated structure. The north boundary didn’t overthrust to basin; Wells Dongtai-1 and Gaqiu-1 at foothill of Saishiteng didn’t penetrate into new formations overlapped by the mountains, but into associated products of high-angle faulted structure, which indicates that the mountain was less thrusted to the basin. So the structure deformation of Northern Qaidam Basin had been mainly strike slip since Cenozoic and the thrust nappe is associated with the strike-slip structure.