矿床的形成受含矿地层、断裂、岩浆岩等多种因素的制约，成矿围岩为石墨黑云母变粒岩，燕山期闪长岩活动是成矿的热动力源。
Deposits are formed by the ore-bearing strata , magmatic rocks , fracture and other factors , the host rock for the mineralization of graphite biotite leptynite . Yanshan Hercynian diorite activity metallogenic thermal power .
黑云母变粒岩