The Provenance Analysis of the Quaternary Heavy Minerals in Sanhu Depression, Qaidam Basin
详细信息
- 责任者：Liu Qunming (Research Institute of Petroleum Exploration and Development ; PetroChina ; Beijing 100083 ; China) ; Chen Kaiyuan
- 刊名：Geoscience
- 出版年：2011
- 卷期：25(2)
- 关键词：重矿物 ; heavy minerals ; 物源分析 ; provenance analysis ; 柴达木盆地 ; Qaidam Basin
- 页码：p.315-321
- 图表：6 illus., 2 tables, 12 refs.
- 分类号：0803
- issnNo：ISSN1000-8527
- isbnNo：CN11-2035/P
摘要
Since lithologic trap is the mainly continuing exploration object of Sanhu Depression, confirming the provenance and the respective influence area on the inside of the depression is the current priority task. Comprehensive analysis of mathematical statistics results shows: the source rock types of work area are mainly metamorphic, medium-basic eruptive and few sedimentary rock, which respectively respond to southern Kunlun Mountains primary provenance, the northeastern Aimunike Mountains secondary provenance and the north Qilian Mountains slight provenance. The south provenance not only controls the sedimentation of south slope, also has an effect on the Sebei-Tainan gas field area of North Slope sedimentation which is controlled by the Kunlun Mountains-Nabei branch provenance.
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