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The Analysis of Coal Accumulating Environment and Coal Forming Models in Early Permian, Ordos Basin
Author(s): 
Pages: 70-76
Year: Issue:  1
Journal: Acta Sedimentologica Sinica

Keyword:  鄂尔多斯盆地聚煤环境成煤模式聚煤控制因素;
Abstract: 通过分析鄂尔多斯盆地早二叠世煤层分布规律、沉积相及古地理、聚煤环境类型及时空分布,认为主要的聚煤沉积体系为障壁海岸、潮控三角洲及河流(三角洲平原),其中陆相泥炭沼泽及海相泥炭坪是主要的成煤环境.障壁海岸聚煤模式、潮控三角洲成煤模式、河流(或三角洲平原)成煤模式是区内存在的3种主要成煤模式,形成了主要的可采煤层.对煤层形成和保存的根本控制因素是与泥炭沉积相关的可容纳空间的变化速率.
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