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黄金科学技术 ›› 2017, Vol. 25 ›› Issue (1): 35-45.doi: 10.11872/j.issn.1005-2518.2017.01.035

• 矿产勘查与资源评价 • 上一篇    下一篇

陕西三官庙—韭菜沟地区钠长岩与金矿床地质特征及找矿方向

汪超1,2,谷玉明1,2,胡西顺1,2,门文辉1,2,杨海涛1,2,吴涛1,2,王瑜亮1,2,赵彦峰1,2   

  1. 1.西安西北有色地质研究院有限公司,陕西  西安    710054;
    2.陕西省矿产资源综合利用工程技术研究中心,陕西  西安    710054
  • 收稿日期:2016-11-05 修回日期:2016-12-30 出版日期:2017-02-28 发布日期:2017-05-12
  • 作者简介:汪超(1987-),男,陕西汉中人,工程师,从事矿产勘查及地质研究工作。wangchaogeo@qq.com
  • 基金资助:

    陕西省地质勘查基金项目“陕西省商南县三官庙金矿深部及外围普查”(编号:61201405270)和“陕西省商南县过风楼—豆腐尖金矿预查”(编号:61201304218)联合资助

Geological Characteristics and Prospecting Direction of Albitite and Gold Deposit in Sanguanmiao-Jiucaigou Area,Shaanxi Province

ANG Chao 1,2,GU Yuming 1,2,HU Xishun 1,2,MEN Wenhui 1,2,YANG Haitao 1,2,WU Tao 1,2,WANG Yuliang 1,2,ZHAO Yanfeng 1,2   

  1. 1.Xi’an Northwest Research Institute of Nonferrous Metals Co.,Ltd.,Xi’an    710054,Shaanxi,China;
    2.Shaanxi Engineering Technology Research Center of Comprehensive Utilization of Mineral Resources,Xi’an    710054,Shaanxi,China
  • Received:2016-11-05 Revised:2016-12-30 Online:2017-02-28 Published:2017-05-12

摘要:

三官庙—韭菜沟地区处于秦岭造山带南秦岭北部逆冲推覆构造带内,钠长岩(脉)广泛发育,已发现多处金矿床(体),以三官庙金矿床和韭菜沟金矿床为典型代表。区内钠长岩包括脉型和岩株型,分别集中分布于区内东、西段;岩石类型有石英钠长岩、钠长角砾岩和交代钠长岩3种。论述了区内钠长岩及金矿床(体)地质特征,对钠长岩与金成矿作用的关系进行了探讨,认为在钠长岩形成过程中,形成以交代钠长岩为赋矿岩石的“韭菜沟式”金矿床,在钠长岩围岩地层的断裂系统中形成“三官庙式”金矿床,二者均是与钠长岩有关的同一成矿系列中的不同金矿类型。对矿区找矿方向进行了论述,提出矿区内叠加“中、大比例尺化探异常—含矿(特殊)地质体—控矿因素”等综合信息的找矿思路。
钠长岩|金矿床|地质特征|找矿前景|三官庙—韭菜沟

关键词: 钠长岩, 金矿床, 地质特征, 找矿前景, 三官庙&mdash, 韭菜沟

Abstract:

Sanguanmiao-Jiucaigou area is located in the thrust-nappe tectonic belt of northern part of south Qinling mountain in Qinling orogenic belt.In this area,the albitite are widely developed,and several gold deposits(ore bodies),of which Sanguanmiao gold deposit and Jiucaigou gold deposit are the typical representative,are found.The form of the albitite in the area includes the vein-type and the mass-type.The former are mainly distributed in the east,and the later are mainly distributed in the west.The rock type of the albitite includes quartz-albitite,albite-breccia and metasomatic albitete.Based on the geological characteristics of albitite and gold deposits in the area,the relationship between albitite and gold mineralization is discussed.During the formation of albitite,Jiucaigou-type gold deposit,of which the metasomatic albitete is host lithology,was formed.And simultaneously,Sanguanmiao-type gold deposit was formed in the fault systems developed in the surrounding rocks of the albitite.They are different types of gold deposit in the same metallogenic series,which is associated with the albitite.In the end,the future prospecting direction is put forward.Utilizing comprehensive informations,combined about the medium-large scale geochemical anomalies,the ore-bearing (special) geological bodies and the ore-controlling factors,is the reasonable prospecting strategy in exploration zone prospecting.

Key words:  albitite, gold deposit, geological characteristics, prospecting potential, Sanguanmiao-Jiucaigou

中图分类号: 

  • P618.51

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