综合物化探在河北某斑岩型铅锌矿床中的应用及找矿效果

Application of comprehensive geophysical and geochemical exploration in a porphyry lead-zinc deposit in Hebei and its prospecting effect

河北某铅锌矿床作为燕山地区唯一具有中等规模的斑岩型铅锌矿床,被发现后多年的地质勘查工作无大的找矿突破。经综合整理研究历年物化探及地质资料,结合开展大功率的激电中梯扫面等系列工作,认为本区化探异常元素分带明显,激电异常发育,成矿系列完整,找矿潜力大。经钻探验证,于斑岩体外围及接触带发现了厚大的铅锌富矿体,于深部发现了铜钼矿体,形成了斑岩型矿床完整的成矿系列,实现了本区新的找矿突破,使其具有了成为大型铅锌矿床的潜力,进一步扩大了本区资源前景。

A lead-zinc deposit in Hebei Province is the only medium-sized porphyry lead-zinc deposit in Yanshan area,Many years'geological exploration work after its discovery has not made major prospecting breakthrough.After comprehensive research on geophysical and geochemical exploration and geological data obtained over the years in combination with a series of work such as high-power IP area measurement,it is believed that the anomalous elements of geochemical exploration in this area are obviously in zoning form,the anomaly of the electrical shock is obvious,the metallogenic series is complete,and the prospecting potential is large.Through drilling verification,thick high-grade lead-zinc deposits were found in the periphery of the porphyry and in the contact zone,copper and molybdenum deposits were found in the depth,which form a complete metallogenic series of porphyry deposits.Therefore,a new breakthrough in prospecting in this area has been realized.This area has a potential to become a large lead-zinc deposit,thus further expanding the resource prospect of the region.