金沙县云盘山晚二叠世含煤岩系沉积环境分析

Analysis of the Depositional Environment of the Late Permian Coal-bearing Rock Series in Yunpan Mountain of Jinsha County

金沙云盘山地区煤炭资源丰富,含煤岩系较为发育,但对其沉积环境的研究相对薄弱,给区域煤炭资源勘查带来了一定的困难。基于区域地质背景,通过对含煤岩系钻孔岩芯进行沉积相分析,恢复了研究区主要可采煤层的沉积环境面貌,下三角洲平原为区域内可采煤层最重要的沉积环境类型,可作为本区下步煤炭资源勘查的重点方向。

The Yunpan Mountain area in Jinsha is rich in coal resources,and the coal-bearing rock series is relatively developed,but the study of its depositional environment is relatively weak,which brings certain difficulties to the regional coal resources exploration.Based on the regional geological background,the outlook of depositional environment of the main minable coal seams in the study area is restored through the analysis of the depositional facies of the drill cores of the coal-bearing rock series.The lower delta plain is the most important depositional environment type of the minable coal seams in the region and can be the key direction of the next coal resource exploration in the region.