Mesozoic-Cenozoic Structure Characteristics and Coexisting Relationships of Multiple Energy Minerals in Weibei Uplift of Ordos Basin(PDF)
《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]
- Issue:
- 2016年第03期
- Page:
- 355-364
- Research Field:
- 基础地质与矿产地质
- Publishing date:
Info
- Title:
- Mesozoic-Cenozoic Structure Characteristics and Coexisting Relationships of Multiple Energy Minerals in Weibei Uplift of Ordos Basin
- Author(s):
- WEI Dong; MA Zhong-hao; CHEN Qing-shi
- 1. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China;2. Shaanxi Key Laboratory for Comprehensive Utilization and Exploration of Mineral Resources, Shaanxi Geological and Mineral Survey Development Corporation, Xian 710054, Shaanxi, China;3. Regional Geology and Mineral Research Institute of Shaanxi, Xianyang 712000, Shaanxi, China
- Keywords:
- energy mineral; coexistence and accumulation; tectonic evolution; sedimentary formation; tectonic thermal event; co-exploration; Weibei uplift; Ordos Basin
- PACS:
- P618;TE122
- DOI:
- -
- Abstract:
- Weibei uplift in Ordos Basin is rich in coal, oil shale, oil, uranium and other energy minerals, the relationship between the coexistence of multiple energy minerals and the structural characteristics, and the co-exploration of multiple energy minerals are hot topics. On the basis of analyzing and summarizing the spatial distribution and genetic relationship of multiple energy minerals, the relationship between period of tectonic movement, sedimentary formation, characteristics of tectonic unit, fold structure and multiple energy minerals were discussed according to the characteristics of tectonic evolution. The results show that the basin formation-differential uplift in Indosinian-Early Yanshanian forms the stable deep and semi-deep lacustrine facies containing oil shale and the unstable swamp facies containing coal sedimentary formation in Weibei uplift; the tectonic thermal events in Middle-Late Yanshanian cause the oil shale hydrocarbon generation and coal quality improved; the fault and fold structure in Yanshanian-Himalayan Period provide the channel and interspace for the migration and accumulation of petroleum and hydrothermal solution containing oil water with low temperature and rich uranium; risingcooling and the southern rift in Himalayan Period keep the coexistence and accumulation of multiple energy minerals, and the unified metallogenic ages are 74-122 Ma, which are later than the tectonic thermal events in Middle-Late Yanshanian. Finally, based on the geological, economic and technical factors, the metallogenic provinces of Binxun depression were divided into 4 co-exploration areas, and the corresponding reasonable exploration models were built.
Last Update: 2016-06-02