甘孜-理塘日乃金矿地质特征及成因
|
摘要
日乃金矿位于四川省西部,地处著名的甘孜-理塘成矿带,是近年来在该带内发现的一个中型金矿床。矿山具有良好的成矿条件和找矿前景。金矿体主要赋存在三叠系瓦能蛇绿岩组(T3w)基性火山岩系地层和炭质板岩地层中。矿体受两条近南北向延伸的逆断层控制,呈条带状产出。矿石中毒砂含量的高低与金品位呈正相关。金矿化与黄铁矿化、毒砂矿化、褐铁矿化、硅化、白云石化密切相关。日乃金矿的形成与构造、地层、岩性及低温热液活动有关,其中与构造和岩性关系最为密切。推断该矿床成因为浅成低温热液型金矿床。
The Rinai gold deposit lies in the famous Garzê-Llitang metallogenic belt, west Sichuan. This is a medium gold deposit. The gold deposit is confined to basic volcanic rock and carbonaceous slate of the Upper Triassic Waneng Formation. The orebodies are controlled by 2 nearly longitudinal reverse faults. Gold content and arsenopyrite content in the ore are directly related. Gold mineralization is in close relation with pyritization, arsenopyritization, limanitization, silicification and dolomitization. Gold ore-formation is related to stratigraphic horizon, hydrothermal activity, especially, structure and lithologic character. The deposit is an epithermal one.
The Rinai gold deposit lies in the famous Garzê-Llitang metallogenic belt, west Sichuan. This is a medium gold deposit. The gold deposit is confined to basic volcanic rock and carbonaceous slate of the Upper Triassic Waneng Formation. The orebodies are controlled by 2 nearly longitudinal reverse faults. Gold content and arsenopyrite content in the ore are directly related. Gold mineralization is in close relation with pyritization, arsenopyritization, limanitization, silicification and dolomitization. Gold ore-formation is related to stratigraphic horizon, hydrothermal activity, especially, structure and lithologic character. The deposit is an epithermal one.
引文
[1]王明聪,李炷霞,毛燕琳,舒培华.滇东南老寨湾金矿地质特征及成因探讨[J].地质与勘探,2011,47(2):261-267.
[2]彭兴阶,刘嘉惠,吴精汇.怒江-澜沧江-金沙江地区地质[M]..北京:地质出版社,2002,105-108.
[3]杜金锐.四川梭罗沟金矿床地质特征与成因初探[D].成都理工大学学报告,2012,7,44.
[4]肖飞,李欢,夏芳,魏清峰,贺小平,魏贤峰.新疆青河顿巴斯套金矿床地质特征及控矿因素分析[J].黄金,2014,1(35):11-17.
[5]郇伟静,袁万明,李娜.川西甘孜-理塘金矿带形成条件的矿物电子探针与裂变径迹研究[J].现代地质,2011,25(2):261-270.
[6]付小方,应汉龙.甘孜-理塘断裂带北段新生代构造特征及金矿成矿作用[J].中国地质,2003,30(4):413-418.
[7]侯增谦,杨岳清,曲晓明,黄典豪,吕庆田,王海平,余金杰,等.三江地区义敦岛弧造山带演化和成矿系统[J].地质学报,2004,78(1):109-119.
[8]张玙,王庆飞,张静,龚庆杰,程文斌.川西甘孜-理塘缝合带阿加隆洼金矿床地质特征及成因探讨[J].岩石学报,2012,28(2):691-701.
[9]燕旎,张静,袁万明,龚庆杰,等.川西甘孜-理塘结合带嘎拉金矿床同位素特征及成矿作用研究[J],岩石学报,2013,29(4):1347-1357.
[10]王小春.川西地区金矿的类型与分布规律[J].地质与勘探,20003,6(1):20-25.
[11]夏廷高,孙传敏,李亮,王跃忠,刘春,杨永鹏.四川阿加隆洼金矿地质特征与找矿标志[J].地质与勘探,2006,42(3):53-55.
[12]肖军,孙传敏,刘严松,等.四川甘孜-理塘断裂带中段阿加隆洼金矿围岩蚀变特征及与金矿化关系[J].地质与勘探,2008,44(6):8-11.
[13]董随亮,黄瀚霄,刘波,张丽,张晖.西藏弄如日金矿地质特征及找矿方向[J].地质与勘探,2010,46(2):0207-0213.
[14]王可勇,梁毓鎏,卢作祥.江西金山金矿床地质特征及矿床成因探讨[J].地质与勘探,1999,35(2):17-20.
[15]江思宏,聂凤军,张义,胡朋.浅成低温热液型金矿床研究最新进展[J].地学前缘,2004,11(2):401-411.
[16]张玲,杨恩林,方开雄.金矿成矿流体演化与成矿机制[J].贵州师范学院学报,2013,29(12):34-40.
[17]王小春.川西地区金矿的分类体系和优势类型[J].黄金科学技术,2013,6(5-6):24-28
[18]王碧香,杨岳清,史仁灯,银剑钊,石森.中国火山岩地区金的成矿环境及分布规律[J].矿床地质,1997,16(1):11-20.
[19]晏子贵.甘孜-理塘断裂带金矿成矿地质特征和控矿因素浅析[J].地质找矿论丛,2006,21(增刊):52-57.
[20]付小方,应汉龙.甘孜-理塘断裂带北段新生代构造特征及金矿成矿作用[J].中国地质,2003,30(4):413-418.
(1)四川省地质调查院.2009.木拉乡、吕村、德巫乡、上马岩幅1:50000区域地质调查报告
[2]彭兴阶,刘嘉惠,吴精汇.怒江-澜沧江-金沙江地区地质[M]..北京:地质出版社,2002,105-108.
[3]杜金锐.四川梭罗沟金矿床地质特征与成因初探[D].成都理工大学学报告,2012,7,44.
[4]肖飞,李欢,夏芳,魏清峰,贺小平,魏贤峰.新疆青河顿巴斯套金矿床地质特征及控矿因素分析[J].黄金,2014,1(35):11-17.
[5]郇伟静,袁万明,李娜.川西甘孜-理塘金矿带形成条件的矿物电子探针与裂变径迹研究[J].现代地质,2011,25(2):261-270.
[6]付小方,应汉龙.甘孜-理塘断裂带北段新生代构造特征及金矿成矿作用[J].中国地质,2003,30(4):413-418.
[7]侯增谦,杨岳清,曲晓明,黄典豪,吕庆田,王海平,余金杰,等.三江地区义敦岛弧造山带演化和成矿系统[J].地质学报,2004,78(1):109-119.
[8]张玙,王庆飞,张静,龚庆杰,程文斌.川西甘孜-理塘缝合带阿加隆洼金矿床地质特征及成因探讨[J].岩石学报,2012,28(2):691-701.
[9]燕旎,张静,袁万明,龚庆杰,等.川西甘孜-理塘结合带嘎拉金矿床同位素特征及成矿作用研究[J],岩石学报,2013,29(4):1347-1357.
[10]王小春.川西地区金矿的类型与分布规律[J].地质与勘探,20003,6(1):20-25.
[11]夏廷高,孙传敏,李亮,王跃忠,刘春,杨永鹏.四川阿加隆洼金矿地质特征与找矿标志[J].地质与勘探,2006,42(3):53-55.
[12]肖军,孙传敏,刘严松,等.四川甘孜-理塘断裂带中段阿加隆洼金矿围岩蚀变特征及与金矿化关系[J].地质与勘探,2008,44(6):8-11.
[13]董随亮,黄瀚霄,刘波,张丽,张晖.西藏弄如日金矿地质特征及找矿方向[J].地质与勘探,2010,46(2):0207-0213.
[14]王可勇,梁毓鎏,卢作祥.江西金山金矿床地质特征及矿床成因探讨[J].地质与勘探,1999,35(2):17-20.
[15]江思宏,聂凤军,张义,胡朋.浅成低温热液型金矿床研究最新进展[J].地学前缘,2004,11(2):401-411.
[16]张玲,杨恩林,方开雄.金矿成矿流体演化与成矿机制[J].贵州师范学院学报,2013,29(12):34-40.
[17]王小春.川西地区金矿的分类体系和优势类型[J].黄金科学技术,2013,6(5-6):24-28
[18]王碧香,杨岳清,史仁灯,银剑钊,石森.中国火山岩地区金的成矿环境及分布规律[J].矿床地质,1997,16(1):11-20.
[19]晏子贵.甘孜-理塘断裂带金矿成矿地质特征和控矿因素浅析[J].地质找矿论丛,2006,21(增刊):52-57.
[20]付小方,应汉龙.甘孜-理塘断裂带北段新生代构造特征及金矿成矿作用[J].中国地质,2003,30(4):413-418.
(1)四川省地质调查院.2009.木拉乡、吕村、德巫乡、上马岩幅1:50000区域地质调查报告