阿尔玛勒井田地质特征及煤层对比分析  

Geological Characteristics and Comparison and Analysis of Coal Seams of Aermale Coal Coalfield

作　　者：吕俊维 Lyu Junwei(No. 216 Geological Party,China National Nuclear Corporation)

机构地区：[1]核工业二一六大队

出　　处：《现代矿业》2017年第2期19-24,共6页Modern Mining

摘　　要：阿尔玛勒井田位于伊犁盆地南缘边界地区,区内主要河谷中有含煤地层及老地层出露,主要含煤地层由上至下依次为中侏罗统西山窑组、下侏罗统三工河组和下侏罗统八道湾组。结合该区地质工作成果,对区域成矿地质特征进行了分析,结果表明:(1)区内露的地层主要为第四系、上第三系、侏罗系、三叠系及零星的二叠系;(2)矿区构造形态总体呈一盆式向斜构造,该复式向斜构造由南至北可划分为南部向斜带、中间凸起带和北部单斜带等3个次级构造单元,勘查区地处南部向斜带之上,区内构造复杂程度为中等。在上述分析的基础上,分别从岩性标志层、煤层特有标志层、测井曲线、煤层层间距、煤质特征等方面对阿尔玛勒井田小西沟群进行了煤层综合划分与对比分析,准确确定了M_1~#、M_3~#、M_5~#、M_7~#、M_8~#、M_9~#、M_(10)~#煤层的层位。分析结果对于矿区进一步开展煤矿资源找矿勘探及准确计算该区煤层储量有一定的参考价值。Aermale coalfield is located in the south margin border area of Yili basin, the coal-bear- ing strata and old strata are existed in the main river valleys in the prospecting area, the main coal-bearing strata from top to bottom can be divided into Xishanyao formation of middle Jurassic series, Sangonghe for- mation of lower Jurassic series and Badaowan formation of lower Jurassic series. Combing with some relat- ed geological and prospecting results of the mining area, the geological characteristics of the mining area is discussed. The results show that：（1）the strata of the mining area are mainly for Quaternary system, upper Neogene system, Jurassic system, Triassic system and sporadic Permian system;（2）as a whole, the structur- al configuration of the mining area is a basin-type synclinal structure, from south to north, the basin-type synclinal structure can be divided into three secondary tectonic unites, they are southern syncline belt, middle convex belt and northern monoclinal belt, the prospecting area is located in the southern syncline belt, the structural complexity of the area is medium level. Based on the above analysis results, the com- prehensive division of the coal seams is conducted, besides that, comparison and analysis of the coal seams of Xiaoxigou formation of Aermale coal coalfield is done from the aspects of lithologic indicator layer, spe- cial indicator of coal seam, well logging curve, inter-layer spacing of coal seam and coal quality characteristics, the positions of coal seams of M1#, M3# , M5# , M7#, M8#, M9# and M10# are determined accurately. The a- bove analysis results related to the Aermale coal coalfield can provide some reference for the further pros- pecting and production of coal resources in the area, besides that, it also have some reference for calculat- ing the coal reserves of the area.

关 键 词：煤矿 地质特征 岩性标志 测井曲线 煤层层间距 煤层划分 煤层储量 

分 类 号：P618.11[天文地球—矿床学]