摘要
甘肃省金塔县铅炉子沟地区位于塔里木-中朝板块北缘大陆边缘区柳园-穿山驯前陆成矿带东南段,是我国北山地区著名的多金属成矿带。本文通过对区域成矿地质背景、成矿地质条件、地球物理、地球化学、遥感异常特征及成矿规律的综合研究与分析,认为该区具有寻找海相沉积-热液再造型、岩浆期后热液(脉)型、接触交代(矽卡岩)型三大类多金属矿床的有利条件,并划分出2条Ⅳ级成矿亚带、4个成矿期。综合圈定重点成矿远景区9个,A类远景区5处,B类远景区1处,C类远景区3处;优选圈定出找矿靶区10个,A类5个,B类1个,C类4个。本次研究为本区下一步开展矿产资源勘查评价和找矿靶区优选提供了科学依据,指明了地质找矿方向。
The Qianluzigou zone of the Beishan area in Jinta County,Gansu Province is part of the famous Liuyuan-Chuanshanxun metallogenic belt of metal ores,which lies in the northern margin of the Tarim-China-Korea Plate.This work analyzes the regional geologic setting,geologic conditions of mineralization,and characteristics of geophysical,geochemical,remote sensing anomalies in this zone.Results suggest that this area hosts favorable conditions for deposits of marine sediment and hydrothermal reconstruction type,post-magmatic hydrothermal type and contact metasomatic(skarn)type.Two sub-zones of IV-class mineralization and four ore-forming periods are divided.Nine key,five A-type,one B-type and three C-type prospective areas are determined.Ten ore-search target areas are confirmed including five type A,one type B and four type C.These results provide evidence for further surveys and assessment of mineral resources and target area choice in this region.
作者
刘彦良
高雅
谢洪春
何海蛟
LIU Yanliang;GAO Ya;XIE Hongchun;HE Haijiao(Gansu Institute of Geological Survey for Nonferrous Metals,Lanzhou,Gansu 730000)
出处
《地质与勘探》
CAS
CSCD
北大核心
2021年第2期269-280,共12页
Geology and Exploration
基金
甘肃省基础地质调查项目“甘肃省金塔县铅炉子沟地区1∶5万矿产远景调查”资助。
关键词
成矿地质背景
地球物理异常
地球化学异常
遥感异常
矿床(点)
成矿规律
找矿靶区
铅炉子沟地区
北山
甘肃省
metallogenic background
geophysical anomaly
geochemical anomaly
remote sensing anomaly
mineral occurrence
metallogenic regularity
prospecting targets
Qianluzigou zone
Beishan area
Gansu Province
作者简介
第一作者:刘彦良(1983年-),男,2009年毕业于中国地质大学(武汉),获硕士学位,高级工程师,主要从事地质矿产勘查和研究工作。E-mail:317510246@qq.com。
