西秦岭尹家坪金矿地质特征及成因
Geological characteristics and genesis of Yinjiaping gold deposit in western Qinling
投稿时间:2014-07-20  修订日期:2014-07-20
DOI:
中文关键词:  金矿  地质特征  成因  尹家坪  西秦岭
英文关键词:gold deposit  geological characteristics  genesis  Yinjiaping  western Qinling
基金项目:国家自然科学基金(编号:41262001)和甘肃省自然科学基金(编号:1010RJZA020)资助。
作者单位邮编
辛存林 西北师范大学地理与环境科学学院 730070
包小强 西北师范大学地理与环境科学学院 730070
巩鑫 西北师范大学地理与环境科学学院 
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中文摘要:
      尹家坪金矿位于西秦岭褶皱系南秦岭印支褶皱带北缘,矿体赋存于海西-印支期侵入的闪长岩岩体及围岩接触部位,矿区总体发育EW向、NNE向断裂构造,该断裂既是成矿热液运移的通道,同时是金元素富集成矿的场所,岩体为金矿提供了成矿物质和部分热液。本文分析了尹家坪金矿体产出的地质特征及矿床成因,认为尹家坪金矿属中低温热液形成的构造蚀变岩型金矿。
英文摘要:
      Yinjiaping gold deposit is located in western Qinling folded system and the northern margin of the southern Qinling indosinian folded belt.Orebodies occurring in diorite invaded the Hercy-Indosinian and the surrounding area of diorite.The NE and NNW faults exist in the mining area.This faults have been the migration channels of metallogenic hydrotherm and the ore-forming place for the concentration of gold elements.Magma provided the gold metallogenic material and part of hydrotherm.According to the geological characteristics of orebodies,Yinjiaping gold deposit belongs to the structural alerted-rock type.And a mineralization analysis showed that it is a medium-low temperature hydrothermal deposit.
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