冀西北后坊子石墨矿地质特征及矿床成因
张兴康, 樊玉朋, 靳松, 贾正海

Geological characteristics and ore genesis of Houfangzi graphite deposit in Northwestern Hebei Province
ZHANG Xingkang, FAN Yupeng, JIN Song, JIA Zhenghai
冀西北大地构造图(a)和土城子一带区域地质简图(b)[ 11 ] 1.第四系; 2.新近系; 3.白垩系大北沟组; 4.侏罗系满克头鄂博组; 5.侏罗系张家口组; 6.中—新元古界化德群; 7.古元古界红旗营子群东井子岩组; 8.新太古界乌拉山岩群; 9.早侏罗世二长花岗岩; 10.二叠纪花岗岩; 11.晚古生代花岗岩; 12.晚泥盆世变质二长花岗岩; 13.地质界线; 14.断层; 15.省界; 16.石墨矿; 17.研究区范围; Ⅳ11.康保褶皱束; Ⅳ12.土城子台凸; Ⅳ22.大青沟新台凹