| 白崖沟金矿床围岩蚀变特征与矿化 |
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| 引用本文： | 张和平.白崖沟金矿床围岩蚀变特征与矿化[J].甘肃地质学报,2008(2):50-55. |
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| 作者姓名： | 张和平 |
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| 作者单位： | 甘肃省核地质二一九大队 甘肃天水741025 |
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| 基金项目： | 2003年度国家矿产资源补偿费地质勘探项目(许可证号:6200000330282) |
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| 摘 要： | 白崖沟金矿床地处祁连-北秦岭造山带的巨大反“S”型构造南侧。金矿化受震旦-奥陶系李子园群和近EW向展布的断裂带及二长花岗岩体的控制．通过分析金矿化特征与围岩蚀变类型。认为与金矿化关系密切的热液活动主要分为4期，主要围岩蚀变类型为黄铁矿化、褐铁矿化、硅化和退色蚀变。文章总结了该矿床的矿化类型和特征．对成矿因素进行了分析，提出了找矿标志。
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| 关 键 词： | 围岩蚀变 矿化特征 金矿床 天水白崖沟 |
ALTERATION CHARACTERISTICS AND MINERALIZATION OF
COUNTRY ROCKS AT BAIYAGOU GOLD DEPOSIT |
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| ZHANG He-ping.ALTERATION CHARACTERISTICS AND MINERALIZATION OF
COUNTRY ROCKS AT BAIYAGOU GOLD DEPOSIT[J].Acta Geologica Gansu,2008(2):50-55. |
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| Authors: | ZHANG He-ping |
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| Institution: | ZHANG He-ping (No.219 Geology Team,Gansu Provincial Bureau of Nuclear Geology,Tianshui 741025,China) |
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| Abstract: | Baiyagou gold deposit is located in the south to the s-type structure at the North Qilian-Qinling orogen.Gold mineralization is controlled by the Sinian-Ordovician strata Liziyuan group and nearly EW distribution to the fault zone and Tianzishan,Moshangou`s calc-alkalic granite.This paper is discussed the relationships between the gold mineralization characteristics and rock alteration of Baigou gold deposit,the gold mineralization is closed by hydrothermal veins and wall rock alteration.There are main four stages of the gold hydrothermal veins activities,the main types of rock alteration of pyrite,limonite,bleaching and silicification alteration are closed to the gold mineralization characteristics. |
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| Keywords: | country rock alteration mineralization characteristics gold deposit Baiyagou Tianshui |
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