西藏昌都妥坝煤田沉积环境与聚煤规律

Sedimentary Environment and Coal Accumulation for the Toba Coal Field in Qamdo, Tibet

通过对妥坝煤田内沉积剖面的系统研究分析,对妥坝煤田的沉积相进行总结,判断煤田的沉积环境,恢复了妥坝煤田二叠世构造-岩相古地理格局。在认真研究妥坝煤田控煤因素,特别是控煤沉积环境及控煤构造样式基础上,研究后期地质事件所诱发的主要构造活动对煤层的影响,剖析了该煤田的主要聚煤规律。

This paper deals with sedimentary environment and coal accumulation for the Toba coal field in Qamdo, Tibet based on systematic study of the sedimentary section and reconstruction of the Late Permian tectonic-sedimentary facies and paleogeographical pattern in Toba.