Sedimentary Facies and Coal-Accumulation of the Early-Middle Jurassic in Toksun Coalfield Northwestern China

Author:

Xiao Lin12,Zhao Cunliang34,Tang Shuheng1,Liu Zhanyong2,Yang Wen3,Yuan Tongxing5

Affiliation:

1. China University of Geosciences, Beijing 100083, China

2. The First Exploration Bureau, CNACG, Handan, Hebei 056004, China

3. China University of Mining & Technology, Beijing 100083, China

4. Key Laboratory of Resource Exploration Research of Hebei Province, Hebei University of Engineering, Handan, Hebei 056038, China

5. China National Administration of Coal Geology, Beijing 100039, China

Abstract

This paper mainly discusses the sedimentary facies and coal accumulation of the Badaowan Formation and Xishanyao Formation in Toksun coalfield, Turpan- Hami Basin. Based on drill and well logging data, fan-delta facies, delta facies, lacustrine facies, swamp facies and flood plain facies were identified. Sangonghe Group and Xishanyao Group were the coal accumulating periods during the Early-Middle Jurassic, including three subgroups: Badaowan, Early Xishanyao and Late Xishanyao groups. The coal-accumulating patterns were different because of the different coal accumulating environments. The stable, simple structure and thick coal seams were formed in the meandering stream plain of the Late Xishanyao Formation.

Publisher

SAGE Publications

Subject

Energy Engineering and Power Technology,Fuel Technology,Nuclear Energy and Engineering,Renewable Energy, Sustainability and the Environment

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