徐阳河金矿金赋存状态及成因探讨
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摘要
文章对甘肃省两党县徐阳河金矿矿石中金的赋存状态及矿石特征进行了论述,徐阳河矿石结构构造较简单,属于单纯金矿石,黄铁矿是组成该金矿石的主要金属矿物,自然金主要为粒间金和裂隙金,金主要以板片状、星点状、细脉状、不规则状、枝杈状分布于黄铁矿中,呈稀疏侵染状细粒分布。矿体受特定层位和断裂控制,根据金矿床产出的大地构造环境、矿物共生特点等分析,认为徐阳河金矿为沉积-热液改造型金矿床。
The features of Gold Ore Characteristics and gold occurrence of the Xuyanghe gold deposit are discussed in this article.The ore texture and structure of the Xuyanghe deposit is relatively simple.Belong to pure gold ore,Pyrite is the main component of the gold ore metallic minerals,Native gold is mainly intergranular gold and fracture gold,the shape of gold distributed in pyrite are Twig shape,Plate shape,Veinlets shape,Irregular shape and Star point shape.With disseminated construct dominated.Ores are controlled by strata and fractures,according to the deposit characteristics of tectonic environment and mineral paragenesis etc,authors can ascertain the type of Xuyanghe gold deposit is sedmentary-hydrothermal reworked deposits.
The features of Gold Ore Characteristics and gold occurrence of the Xuyanghe gold deposit are discussed in this article.The ore texture and structure of the Xuyanghe deposit is relatively simple.Belong to pure gold ore,Pyrite is the main component of the gold ore metallic minerals,Native gold is mainly intergranular gold and fracture gold,the shape of gold distributed in pyrite are Twig shape,Plate shape,Veinlets shape,Irregular shape and Star point shape.With disseminated construct dominated.Ores are controlled by strata and fractures,according to the deposit characteristics of tectonic environment and mineral paragenesis etc,authors can ascertain the type of Xuyanghe gold deposit is sedmentary-hydrothermal reworked deposits.
引文
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[3]张静,刘宇.平武地区银厂金矿矿石特征及找矿标志[J].现代矿业,2011(11):38-41.
[4]江思宏,聂凤君,等.浅成低温热液型金矿床研究最新进展[J].地学前缘,2004(11):401-409.
[5]陈耀宇,李永琴.甘肃祁连金矿类型划分及特征对比[J].甘肃地质学报,2005(14):53-57.
[6]黄永金.广西凌云县罗楼金矿矿石矿物特征[J].桂林工学院学报,1995(15):221-222
[7]嫣云飞,谭俊,等.中国浅成热液低温型矿床地质特征及研究现状[J],资源环境与工程,2007(21):7-11.
[8]肖渊甫,孙燕,熊发挥,等.川西丹巴地区磨子沟金、银赋存状态及成因[J].地质通报,2010 29(7):1032-1038.
[9]张耀华,谷振东,陈为民.阜新排山楼金矿金的赋存状态[J].辽宁地质,1993(2):129-138.
[10]吴建设,谭铁龙,等.黄铁矿的一般特征与含金性的关系探讨[J].西北地质,1996,17(3):19-26.