The Kebao coal basin is located at the middle segment of the Xiaojiang fault zone in the central part of Yunnan Province. The coal-bearing strata of Tertiary age are made up of alluvial fan-lacustrine-swamp genetic se...The Kebao coal basin is located at the middle segment of the Xiaojiang fault zone in the central part of Yunnan Province. The coal-bearing strata of Tertiary age are made up of alluvial fan-lacustrine-swamp genetic sequences. Sinistral strike-slip motion of the N-S trending fault zone has created a locally transtensional or transpres sional tectonic environment, giving rise to the relative movement of fault blocks in the basement, and the development of a strike-slip coal basin at the surface. Based on de tailed sedimentary-structural analyses, the paper proposes geodynamic models for the coal basin formation and its deformation.展开更多
文摘The Kebao coal basin is located at the middle segment of the Xiaojiang fault zone in the central part of Yunnan Province. The coal-bearing strata of Tertiary age are made up of alluvial fan-lacustrine-swamp genetic sequences. Sinistral strike-slip motion of the N-S trending fault zone has created a locally transtensional or transpres sional tectonic environment, giving rise to the relative movement of fault blocks in the basement, and the development of a strike-slip coal basin at the surface. Based on de tailed sedimentary-structural analyses, the paper proposes geodynamic models for the coal basin formation and its deformation.
