甘肃白银厂及外围地区1∶5万地球化学特征及找矿远景  

Geochemical Characteristics of 1∶50000 Survey Data of Stream Sediments and Ore-Search Prospects in the Baiyin Mine Fields and Vicinity of Gansu Province

作　　者：刘彦良 高雅 任育智 季文中 Liu Yanliang;GaoYa;Ren Yuzhi;Ji Wenzhong(Gansu institute of Geological survey for Nonferrous Metals,Lanzhou,730000,China)

机构地区：[1]甘肃省有色地质调查院,甘肃兰州730000

出　　处：《新疆地质》2021年第3期431-437,共7页Xinjiang Geology

基　　金：中国地质调查局公益性地质调查项目甘肃省白银厂及其外围地区矿产远景调查(1212011120563)项目资助。

摘　　要：甘肃白银厂及外围地区是北祁连铜多金属成矿带的主要地段。通过研究1∶5万水系沉积物地球化学实测资料,阐明了该区的元素含量特征、元素离散程度、元素组合特征、单元素异常特征、组合异常特征、综合异常特征等,发现该区Au,Ag,Cu,Pb,Zn,Mn,Fe等元素具一定成矿潜力。结合野外异常查证,推断多数异常受岩浆和构造作用控制,区内与海相火山岩有关且强度较高、元素组合较好的异常区有利于成矿。据地球化学异常,结合成矿地质构造背景,进一步优选出找矿远景区9处,为该区下一步的找矿工作提供了依据和参考。Baiyin mine field and vicinity of Gansu province is important area of the northern Qilian metallogenic belt of copper etc.Based on 1:50000 survey data of stream sediments,this paper expounds the characteristics of element content,element dispersion,element combination,single element anomaly,combination anomaly and comprehensive anomaly.It is found that Au,Ag,Cu,Pb,Zn,Mn,Fe and other elements have certain metallogenic potential in this area.Combined with field verification,it is inferred that most of the anomalies are controlled by magmatic rocks and structures,and the abnormal areas with high strength and good integrated of elements are favorable for mineralization.According to the geochemical anomalies,combined with the geological and structural background of mineralization,nine prospecting areas were further optimized,which provides the basis and reference for the next prospecting work in the area.

关 键 词：甘肃白银厂 地球化学特征 找矿远景区 

分 类 号：P595[天文地球—地球化学]