鄂尔多斯盆地优质煤资源分布及有利区块

以鄂尔多斯盆地侏罗纪煤炭资源为研究对象,在系统分析煤基本性质的基础上,确定该盆地优质煤的定义。根据近年鄂尔多斯盆地勘探及聚煤规律研究成果,依据定义确定优质煤主要分布在东胜、榆横、大保当、马家滩、神北、灵武、彬长、华安、黄陵、汝箕沟10个煤矿区和鄂托克旗、杭锦旗、盐池、靖定、环县、庆阳、旬东7个预测区,统计含煤面积达11.1×104km2,总资源量1.44×1012t。选择含煤面积、资源丰度、资源量指标对鄂尔多斯盆地优质煤资源进行评价,划分出最有利、有利、较有利、一般区块,绘制了鄂尔多斯盆地优质煤资源评价分区图。

Resource Distribution and Available Block of High Quality Coal in Ordos Coal Basin

After studying the high quality coal resource and its properties in the Ordos coal basin, the definition ofhigh quality coal is given. According to research results on explorations and coal accumulations in the Ordos coalbasin, the distribution range of the high quality coal is determined which includes ten coal mines, i.e., Dongsh-eng, Yuheng, Dabaodang, Majiatan, Shenbei, Lingwu, Binchang, Hua’ an, Huangling and Rujigou, and sevenprediction areas, i.e., Otog, Hanggin, Yanchi, Jingding, Huanxian, Qingyang and Xundong. The total distri-bution area of high quality coal is 11.1× 104 km2 and the resource amount is 1.44× 1012 t. Three indicative index,including the coal area, the abundance and the amount of the coal resource are chosen to evaluate the high qualitycoal resource of the Ordos coal basin and the whole area is divided into four different levels,that is, the most a-vailable, the available, the less available and the ecumenic block. The distribution map of the evaluation on thehigh quality coal resource of the Ordos coal basin is drawn.