- 责任者：Li Huantong (State Key Laboratory of Coal Resources and Safe Exploitation ; China University of Mining and Technology ; Beijing 100083 ; China) ; Cao Daiyong
- 刊名：Geotectonica et Metallogenia
- 出版年：2013
- 卷期：37(4)
- 关键词：煤系 ; coal measures ; 构造演化 ; structural evolution ; 华南地区 ; South China
- 页码：p.611-621
- 图表：10 illus., 50 refs.
- 分类号：1004
- issnNo：ISSN1001-1552
- isbnNo：CN44-1595/P
The Xuefengshan domain in the central Hunan is generally considered as a transitional zone between the Yangtze Block and Cathaysia Block and belongs to an intracontinental composite tectonic system. The special geological settings of the Xuefengshan Domain resulted in a significant spatial-temporal differentiation of coalfield structure, which resulted in the complexity of coal resources occurrence. The deformation and distribution of the coal measures in the study area can be divided into two parts： the Baimashan-Longshan clustered uplift zone and the Yuechengling-Guandimiao clustered uplift zone, belonging to the Lianyuan and Shaoyang fold belts, respectively. Structural deformation of coalfield, which controls the tectonic evolution and the lithological associations of coal measures, is characterized by multilevel and multi-phase thrust-napping. Detached structure and gliding nappe developed broadly, and can be divided into three structure belts from west to east： thrust-nappe structure belt, combination of ejective fold and thrust fault, association of thrust fault and open fold. The coal measures of Carboniferous-Permian are well-preserved in the syncline even though experienced successively Indosinian-Yanshanian tectonic deformations. On the contrary, denudation in the anticline area resulted in shallower bury depth of the coalbeds. These decollement structure and nappe structure often led to overlapping of the coalbeds, and thus, is a potential target area for coal resource exploration.