阿富汗科里奇-阿什普什塔勘查区煤层煤质特征研究

阿富汗科里奇一阿什普什塔勘查区面积约69．098km^2，含煤地层为侏罗系中统和下统。侏罗系中统下段阿什普塔组含一层可采煤层，即7煤层。侏罗系下统科里奇组下段含可采煤4层，分别为4、2、2、2F煤层，其中2煤层为西部主要可采煤层，总资源量11389．6万t。7煤层煤质为低灰、特低硫、特低磷、中热值、中等软化温度灰之不粘煤；其他煤层均为中-高灰、低硫、低磷、中热值、高挥发份、中等软化温度灰之长焰煤。

A Study on Coal Seam and Coal Quality Characteristics in Coryqi-Ashepashoonta Perambulation Area, Afghanistan

The Coryqi-Ashepashoonta perambulation area, Afghanistan has an area of about 69.098km2; its coal-bearing strata belong to Middle Series and Lower Series of Jurassic System. The Lower Member Ashepashoonta Formation of Middle Series has 1 mineable coal seam, namely No.7 coal seam; while Lower Series Coryqi Formation has 4 mineable coal seams, namely Nos.4, 2U, 2 and 2L coal seams, in which, the No.2 coal seam is the main mineable coal seam in the western part, with total resources of 113.896 million tons. The coal quality of No.7 coal is low ash, extra low sulfur and phosphorus, medium calorific value, medium softening temperature noncaking coal; while others are medium-high ash, low sulfur and phosphorus, medium calorific value, high volatile matter, medium softening temperature long flame coal.