Indo-Chinese epoch hydrotherm replaced with carbonate and neutral-basic volcanic rocks of Jxlformation to derive skarns.
印支期成矿热液与蓟县系狼牙山组碳酸盐巖、中基性火山巖交代形成硅卡巖。
The first is the depression karst development pattern from dissolution of karst hill during Indo-Chinese epoch which is the key period for forming space of the reservoir.
其中印支-早燕山期裸露巖溶属溶丘(梁)洼地型巖溶发育模式,是储集空间形成的重要时期。
The Indo-Chinese epoch monzogranite is the main metallogenic material source and ore-control factor.
印支期二长花岗巖是矿床的主要成矿物质来源与控矿因素;