| 刘桂阁,王恩德,陈勇敢,常春郊,丛润祥,张惠玉,李艳秋,朝银银.川西北地区金矿成矿条件[J].地质找矿论丛,2010,25(1):5-11 |
| 川西北地区金矿成矿条件 |
| METOLLOGENIC CONDITIONS FOR GOLD DEPOSITS IN THE NORTHWEST SICHUAN PROVINCE |
| 投稿时间：2009-02-13 |
| DOI：10.6053/j.issn.1001-1412.2010.1. 002 |
| 中文关键词: 川西北 金矿床 剪切带 微细浸染 找矿方向 |
| 英文关键词:the northwest Sichuan province gold deposit shear zone micro-dissemination ore-prospecting direction |
| 基金项目:中国地质调查局地质大调查项目(编号1212010781013)资助 |
| 作者 | 单位 | E-mail | | 刘桂阁 | 东北大学, 资源土木工程学院, 沈阳, 110004
武警黄金地质研究所, 河北, 廊坊, 065000 | liuguig@sina.com | | 王恩德 | 东北大学, 资源土木工程学院, 沈阳, 110004 | | | 陈勇敢 | 武警黄金地质研究所, 河北, 廊坊, 065000 | | | 常春郊 | 武警黄金地质研究所, 河北, 廊坊, 065000 | | | 丛润祥 | 武警黄金地质研究所, 河北, 廊坊, 065000 | | | 张惠玉 | 武警黄金地质研究所, 河北, 廊坊, 065000 | | | 李艳秋 | 武警黄金地质研究所, 河北, 廊坊, 065000 | | | 朝银银 | 武警黄金地质研究所, 河北, 廊坊, 065000 | |
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| 中文摘要: |
| 四川省西北部是我国岩金矿床分布的重点地区之一,尤以微细浸染型金矿床为主.该区有刷经寺联合村、嘎拉、金木达等大中型与超大型金矿床,显示出金矿成矿的良好前景.研究区处于古特提斯东缘的被动陆缘,为稳定大陆边缘海湾或封闭的海湾浊流盆地环境.浊积岩沉积形成金的初步富集,并在印支期发生低温动力变质,成为微细浸染型金矿的主要矿源层.岩浆活动沿区内构造边缘破裂带发生,形成构造岩浆岩带,并与金及多金属成矿有着密切的关系.双向收缩的造山运动为金成矿提供了区域构造条件,韧脆性剪切带控制了金矿的分布,并为成矿提供了主要的热动力. |
| 英文摘要: |
| The northwest Sichuan province is one of the key regions where the primary gold deposits dominated by the micro-disseminated type of gold deposit are concentrated,such as the large and medium sized micro-disseminated gold deposits at Lianhecun,Gala,Jinmuda etc.and the metallogenic conditions for primary gold deposits is prospective.The study area is situated at the passive continental margin of the east Palaeo-Tethys margin.Here is the stable contiment-margional bay or close bay tubulent basin sedimentary environment.Gold is primarily enriched in the turbidite which was exposed to low temperature dynamic metamorphism during Indo-China period and becomes the source bed of the micro-disseminated gold deposits and magmatism occurs at the margional cataclastic zones as tectonic-magmatic zones and is associated with gold and poly-metal ore.The tectonic movement supply heat source for formation of the gold deposits.The gold deposits were formed under the bi-directional shrinked orogenic backgroumd and controlled by the britle-ductile shear zones.Remote sensing techniques are combined with geochemical survey for location of the gold ore prospecting targets. |
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