四川代隆金矿地质特征及成矿地质条件分析
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摘要
代隆金矿床产于燕山期花岗斑岩体的蚀变矿化破碎带中,围岩为上三叠统新都桥组板岩夹变质砂岩,金矿体赋存在破碎蚀变的花岗斑岩中,金矿化与硅化、黄铁矿化、毒砂化和褐铁矿化关系密切。文章论述了金矿床所处的区域地质背景、矿区和矿床地质特征以及地球化学特征,初步分析了矿床的成矿条件和控制因素。此外提出了一些尚需进一步研究的问题,希望能引起关注与探讨。
The Dailong gold deposit is located in the altered and mineralized fracture zone within the Yanshanian granitic pluton.The wall rock is the slate with the intercalation of meta-sandstone of the Xinduqiao formation of Upper Triassic,the gold ore bodies are hosted in the fractured and altered granitic pluton.Main wall rock alterations such as silicification,pyritization,ferritization and arsenopyrite,are closely associated with gold mineralization.The paper introduces the regional geological background,geological features and geochemical characteristics,and analyzes the ore-forming conditions and ore-controlling factors.Finally the authors propose some key issues to be paid attention in the future exploration work.
The Dailong gold deposit is located in the altered and mineralized fracture zone within the Yanshanian granitic pluton.The wall rock is the slate with the intercalation of meta-sandstone of the Xinduqiao formation of Upper Triassic,the gold ore bodies are hosted in the fractured and altered granitic pluton.Main wall rock alterations such as silicification,pyritization,ferritization and arsenopyrite,are closely associated with gold mineralization.The paper introduces the regional geological background,geological features and geochemical characteristics,and analyzes the ore-forming conditions and ore-controlling factors.Finally the authors propose some key issues to be paid attention in the future exploration work.
引文
[1]王全伟,姚书振.骆耀南.川西北微细浸染型金矿成矿构造系统及其动力学分析[D].成都:电子科技大学出版社.2003.
[2]四川省地质矿产局.南木达幅1:20万区域地质调查资料[R].成都:地质矿产局.1986.
[3]王全伟,姚书振,张均,等.四川壤塘金矿带控矿构造研究[J].四川地质学报,2000,20(1):39-44.
[4]四川省地质矿产局.四川省区域地质志[M].北京:地质出版社,1991.
[5]何雁.四川壤塘代隆金矿成矿地质特征及找矿前景[J].四川地质学报,2006,26(4):210-213.
[6]李石桥.四川省代隆金矿区构造控矿因素分析[J].四川地质学报.2010,30(3):298-300.
[7]张均.川西北地区金矿床的双源复合成矿新认识[J].地质科技情报,2000,19(1):51-56.
[8]徐桂林,石晓兰,许洪才.营里金矿地质特征及成矿条件分析[J].地质与勘探,2006.42(2):13-18.
[9]川西北地质大队.四川省壤塘县金木达金矿区普查地质简报[R].四川西北地质大队,2005.
[10]李建康,杨学俊,王登红,等.川西北花岗岩的冷却过程及其对区域成矿的制约[J].地质学报.2009.83(8):1141-1148.
[11]夏国清.朱迎堂,黄华谷,等.四川壤塘县扎阔金矿床地质特征及矿床成因[J].黄金地质.2009.30(5):17-19.
[2]四川省地质矿产局.南木达幅1:20万区域地质调查资料[R].成都:地质矿产局.1986.
[3]王全伟,姚书振,张均,等.四川壤塘金矿带控矿构造研究[J].四川地质学报,2000,20(1):39-44.
[4]四川省地质矿产局.四川省区域地质志[M].北京:地质出版社,1991.
[5]何雁.四川壤塘代隆金矿成矿地质特征及找矿前景[J].四川地质学报,2006,26(4):210-213.
[6]李石桥.四川省代隆金矿区构造控矿因素分析[J].四川地质学报.2010,30(3):298-300.
[7]张均.川西北地区金矿床的双源复合成矿新认识[J].地质科技情报,2000,19(1):51-56.
[8]徐桂林,石晓兰,许洪才.营里金矿地质特征及成矿条件分析[J].地质与勘探,2006.42(2):13-18.
[9]川西北地质大队.四川省壤塘县金木达金矿区普查地质简报[R].四川西北地质大队,2005.
[10]李建康,杨学俊,王登红,等.川西北花岗岩的冷却过程及其对区域成矿的制约[J].地质学报.2009.83(8):1141-1148.
[11]夏国清.朱迎堂,黄华谷,等.四川壤塘县扎阔金矿床地质特征及矿床成因[J].黄金地质.2009.30(5):17-19.
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