Palaeo-weathered Crust and its Association Relationship with Coal Seam in North China and Northeast China[J]. COAL GEOLOGY & EXPLORATION, 1989, 17(1): 9-12.
Citation: Palaeo-weathered Crust and its Association Relationship with Coal Seam in North China and Northeast China[J]. COAL GEOLOGY & EXPLORATION, 1989, 17(1): 9-12.

Palaeo-weathered Crust and its Association Relationship with Coal Seam in North China and Northeast China

  • Palaeo-weathered crust and redeposited clay existe in the basement of three major coal-forming periods in North China.Having enumerated the their association regularities with coal seams, the paper analysed the association mechanism.
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