鱼卡煤田羊水河地区含煤地层及煤层特征分析

Coal Geology of China(2011)

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Abstract
羊水河地区位于鱼卡盆地的中部,全区大部为新生界覆盖,通过钻探工程揭示,含煤地层为中侏罗统大煤沟组和石门沟组,含煤地层厚度向西有逐渐变厚的趋势;主要可采煤层M7位于大煤沟组上部,属于厚-特厚煤层,厚煤带分布在鱼卡向斜北翼至Ⅲ线鱼卡背斜南翼,向鱼卡向斜南翼有逐渐变薄的趋势;M5位于石门沟组含煤段底部,属于中-厚煤层,区内厚度变化较大,在中部煤层较薄,向Ⅰ线以西至深部逐渐加厚。通过分析含煤地层的发育规律,恢复中侏罗世沉积期的古地理环境,对区内煤炭资源勘查具有实际意义。
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Key words
Iqe coalfield,Shimengou Formation,Yangshuihe area,main coal seam,Dameigou Formation
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