九道岭井田聚煤规律及控煤因素分析

Analysis of Coal-accumulation Pattern and Coal-control Factors in Jiudaoling Minefield

九道岭井田位于辽宁阜新煤田的西南部,勘查面积24km2,煤炭资源量丰富,是一个具有远景发展的含煤地区。根据该区已有的勘探资料,研究其含煤地层的分布、含煤性及聚煤作用,并对其含煤岩系的沉积旋回结构及可采煤层的分布状况进行了分析。研究表明:九道岭井田沙海组聚煤作用可分为两个主要聚煤期,第一个聚煤期为第一旋回的上部4煤层及5煤层沉积时期;第二聚煤期为第三旋回顶部的二煤层沉积时期。该区的煤层发育主要受沉积环境、构造和古气候等因素控制。以上研究成果为今后矿山开采及外围找煤提供参考。

The Jiudaoling minefield is situated in southwestern part of the Fuxin coalfield, Liaoning. It has 24km2 exploration area and abundant coal resources, is a prospective coal-bearing area. Based on existing exploration data, studied distribution of coalbearing strata, properties and coal accumulation, and analyzed coal-bearing strata sedimentary cyclic structures and mineable coal seam distribution. The study has demonstrated that： the Shahai Formation coal accumulation in the minefield can be divided into two stages. The first coal accumulation stage includes Nos.4 and 5 coal seams deposition in the upper first eycle. The second coal aecumulation stage includes No.2 coal seam in the top of third cycle. The development of coal seams in the area is controlled by factors of sedimentary environment, structural and paleoclimate. The study results can be the references for coal mining and peripheral coal looking henceforth.