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夏河地区金矿地球化学特征及找矿前景
引用本文:和发荣,冯小明,等.夏河地区金矿地球化学特征及找矿前景[J].甘肃地质学报,2001,10(1):54-62.
作者姓名:和发荣  冯小明
作者单位:[1]甘肃省地质调查院,甘肃兰州730000 [2]甘肃省地勘局第三勘查院,甘肃兰州730050
摘    要:通过对夏河地区金矿的地球化学特征的研究 ,认为该地区存在着巨大的金矿找矿优势和银、锑矿潜力。提出该区找金以浅成低温热液型为主 ,以构造蚀变型、石英闪长岩型为远景矿化主要类型。指出下三叠统是有利的成矿部位 ,中酸性岩体、构造蚀变破碎带是富金的场所。明确了异常 +构造 +岩脉 +蚀变的综合找矿标志。确定了 3个异常带是寻找金矿的基本目标。

关 键 词:夏河地区  金矿  地球化学特征  找矿前景

GEOCHEMICAL CHARACTERISTIC AND ORE-SEARCH PROSPECTS OF GOLD DEPOSIT IN XIAHE AREA
ZHANG Fa rong ,FENG Xiao ming ,ZHOU Hui wu.GEOCHEMICAL CHARACTERISTIC AND ORE-SEARCH PROSPECTS OF GOLD DEPOSIT IN XIAHE AREA[J].Acta Geologica Gansu,2001,10(1):54-62.
Authors:ZHANG Fa rong  FENG Xiao ming  ZHOU Hui wu
Institution:ZHANG Fa rong 1,FENG Xiao ming 2,ZHOU Hui wu 1
Abstract:Through the comprehensive investigation of geochemical characteristics of gold ore deposit in Xiahe region,we think that there are an immense superiority for hunting gold ore deposit and potential for Ag and Sb ore deposits in the region,and put forward ore-search for gold in this region to take the epithermal deposit as its main type and tectonic alteration and quarty diorite styles as the main prospective mineralization.Meanwhile,we point out the lower triassic series is a favorable place for ore-forming process and neutral acidity rock bodies,and tectonic alteration fracture zone is the place for richment of gold.Therefor we make clear and definite that anomalies,tectonics,dike rocks and alterations are as the comprehensive ore-search indicators and three anomaly zones are as the basic targets for searching gold ore deposit.
Keywords:Xiahe area  Gold deposit  Geochemical characteristic  Ore-search prospects  
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