新疆和什托洛盖煤田沙吉海三井田含煤特征与煤层对比

Coal-bearing Features and Coal Seams Correlation in Shajihai No.3 Minefield, Hostolgoi Coalfield, Xinjiang

新疆和什托洛盖煤田沙吉海三井田位于和什托洛盖中新生代凹陷,含煤地层主要为中侏罗统西山窑组。综合井田已有的地质资料及最新的勘探成果进行分析。结果显示:本井田总体构造形态为一单斜构造,地层平缓,构造中等;根据岩性特征,西山窑组分为下、中、上三个含煤岩段,共含可采煤层11层,其中B10煤层厚度大,为全区可采稳定煤层,分布在中段。利用煤层组合特征、标志性煤层等多种综合对比手段,较好地解决了煤层对比问题。井田煤炭资源丰富,经估算煤炭资源总量为95 335.2万t,适宜规划设计大型机械化矿井。

The Shajihai No.3 minefield, Hostolgoi coalfield, Xinjiang is situated in the Hostolgoi Mesozoic-Cenozoic depression; coal- bearing strata belong to middle Jurassic Xishanyao Formation. Integrated previous geological data and recent exploration results of the minefield carried out analysis. The result has shown that the overall structural form of minefield is a monocline with gentle strata dip an- gle moderate structure. Based on lithologic features, the formation can be divided into lower, middle and upper three coal-bearing mem- bers, contains 11 mineable coal seams. In which, the coal B 10 is thick, whole area mineable steady coal seam situated in middle mem- ber. Using coal seam combination characteristics, indicating coal seam etc. multiple comprehensive correlation means, have solved the correlation issue better. Coal resources in the minefield are abundant, estimated total coal resources have 953.35 million tons, suitable to planning and design large-scale mechanized coalmine.