祁连成矿带成矿规律和找矿方向

Metallogenic Characteristics and Prospecting Target in the Qilian Metallogenic Zone

摘要: 在系统分析区内成矿条件和区域成矿特征的基础上,提出海相火山岩型、接触交代型(矽卡岩型)、变质(包括沉积-变质)型、沉积型(含喷气-沉积型)、构造蚀变岩型等是该区的主攻矿床类型。通过对祁连成矿带地质、矿产、物探、化探、遥感等资料的综合分析,并结合野外调研和室内的再研究,共圈定69处成矿远景区,其中A类5处,B类23处、C类41处。在此基础上,结合最新的地质找矿成果,优选出铜、金、铅、锌、钨远景区16处,作为今后矿产资源评价首选地区。

Abstract: On the basis of a synthetic analysis of ore-forming conditions and regional mineralization characteristics in the Qilian metallogenic zone, it is proposed that marine volcanic, contact metasomatic (skarn), meta-sedimentary (including sedimentary exhalative) and ductile shear zone types are the major target oredeposits in the zone.By means of study on geology and ore deposits as well as geophysical, geochemical exploration and remote sensing, 69 prospecting areas have been located.Among them, 5 areas are grade A, 23 areas grade B and 41 grade C, and 16 copper, lead, zinc, gold and tungsten target areas for mineral resource assessment have been selected.