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Sequence Stratigraphic Analysis and Coal Accumulation of the Middle Jurassic Xishanyao Formation in the Heshituoluogai Basin
Author(s): 
Pages: 534-540
Year: Issue:  4
Journal: Xinjiang Geology

Keyword:  Heshituoluogai basinXishanyao FormationSequence stratigraphyCoal accumulation;
Abstract: 和什托洛盖盆地中侏罗统西山窑组发育多套煤层.据钻井岩心和测井曲线资料,研究和什托洛盖盆地中侏罗统西山窑组层序地层格架及沉积体系空间展布特征,在此基础上分析煤的聚集规律.研究区主要发育辫状河、三角洲和湖泊3种沉积体系,物源来自盆地南北方向.西山窑组可划分为两个三级层序,煤层主要分布于三级层序的湖扩和高位体系域,高位体系域中晚期为泥炭沼泽发育的最佳时期.
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