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我队在海拉尔含煤盆地群伊敏盆地一露天煤矿北12公里的五牧场一带发现一块异常变质区。区内煤种自褐煤到贫煤均有发现,煤化程度参数垂向变化急剧。面积约100公
Our team found an abnormal metamorphic zone in Waduchang area, 12 kilometers north of the open pit coal mine in Hailaer coal-bearing basin. Coal from the lignite to lean coal area have found that vertical changes in the degree of coalification sharp change. An area of about 100 kilometers