摘要
丹凤竹林关—商南豆腐尖地区处于秦岭造山带南秦岭构造带北部逆冲推覆构造带内,钠长(角砾)岩广泛发育,已发现了多处与钠长岩有关金矿点的信息,区域上钠长(角砾)岩型金矿以双王金矿和二台子铜金矿的典型代表。通过与典型矿床在次生晕地球化学特征、原生晕地球化学特征、控矿因素、矿体特征和矿石特征等方面的对比研究,明确了高强度大规模化探次生晕Au-As或Au-Hg异常叠加在钠长角砾岩筒上部近水平塌陷虚脱部位或钠长角砾岩与钠化围岩接触带部位上是寻找该类型矿床的主要方向,研究区具有良好的找矿前景。
Zhulinguan Area of Danfeng-Doufujian Area of Shangnan is located in the northern block of Southern Qinglin,in the thrust-nappe tectonic belt. In this area,the albitite（breccia） are widely developed. Information on a number of gold deposits associated with albilite has been discovered. The typical representative of the albitite（breccia） type gold deposit in the region is the Shuangwang gold deposit and the Ertaizi copper-gold deposit. A comparative study on the geochemical characteristics of secondary halos, the geochemical characteristics of primary halo, ore-controlling factors, ore body characteristics and ore characteristics by using typical deposits. The study clarified that the high-intensity and large-scale exploration of secondary halo Au-As or Au-Hg anomaly is superimposed on the near-horizontal collapse of the upper part of the long breccia tube or the contact zone of the albitite breccia and the surrounding rock. Find the main direction of this type of deposit. The study area has good prospecting prospects.
作者
谷玉明
汪超
李超
杨海涛
王瑜亮
牛亮
胡西顺
GU Yu-ming;WANG Chao;LI Chao;YANG Hai-tao;WANG Yu-liang;NIU Liang;HU Xi-shun(Xi＇an Northwest Research Institute of Nonferrous Metals Co.Ltd.Xi＇an 710054,Xi＇an,China)
出处
《世界有色金属》
2018年第14期105-110,共6页
World Nonferrous Metals
基金
陕西省地质勘查基金项目"陕西省商南县过风楼-豆腐尖金矿普查"(编号:61201304218)资助
关键词
金矿
钠长(角砾)岩型
找矿前景
丹凤竹林关
商南豆腐尖
gold deposit
albitite breccia
Prospecting direction
Zhulinguan Area of Danfeng-Doufujian Area of Shangnan
