三七○一矿床开展钻孔原生晕取样工作,对指导矿床扩大,追索深部盲矿体发挥了一定的作用。一、矿床地质简述及原生晕取样概况矿床产于我国南方某花岗岩体外接触带的下-中泥盆统灰岩中。矿体分布在外接触带160米范围内,大部分为盲矿体。特别是矿床中的F_2和F_(15)两条断裂,使灰岩断陷,其间发育 The 3710 borehole borehole primary halo sampling work, to guide the expansion of the deposit, the pursuit of deep blind ore body has played a role. First, a brief description of the geological deposit and primary halo sampling Profile Deposits in southern China a granite in contact with the lower-middle Devonian limestone. Ore distribution in the outer contact zone within 160 meters, mostly blind ore body. In particular, the faults of F_2 and F_ (15) in the ore deposit ruptured the limestone during the development