甘肃北祁连山寒山金矿床控矿条件与成矿模式

杨建国; 黄振泉; 任有祥; 李智佩; 宋忠宝

甘肃北祁连山寒山金矿床控矿条件与成矿模式

1.
西安地质矿产研究所, 陕西西安 710054

2.
山东省泰安市岱岳区国土资源局, 山东泰安 271000

基金项目: 原地质矿产部资源与环境科技攻关项目(课题编号:95-2-004)资助

收稿日期: 2002-06-11

修回日期: 2003-02-17

刊出日期: 2003-03-15

The ore-controlling conditions and metallogenic model of Hanshan gold deposit in North Qilian Mts

1.
Xi'an Institute of Geology and Mineral Resources, Xi'an 710054, China

2.
Daiyue Local Land Resources Bureau, Tai'an 271000, China

Received Date: 11 June 2002

Revised Date: 17 February 2003

Publish Date: 15 March 2003

摘要

摘要: 通过对该矿床成矿地质背景、矿床地质特征、成矿标志及控矿因素等诸方面分析,指出成矿物质主要来源于下奥陶统岛弧钙碱性安山-英安质火山碎屑岩,矿体受多级断裂裂隙系统的控制,且主要定位于韧-脆性剪切带内的强片理化带中,成矿作用发生于碰撞造山作用挤压-伸展转变期,花岗闪长岩、闪长岩等造山期中酸性岩体侵位期间及其以后,深部岩浆房或中酸性侵入体主要为矿床形成提供了热驱动力,矿床成因类型属与火山岩有关的构造蚀变岩型金矿床.在此基础上,总结归纳了该矿床的成矿模式与综合找矿标志.
- 寒山金矿床 /
- 控矿条件 /
- 成矿模式 /
- 北祁连山 /
- 甘肃
Abstract: Hanshan gold deposit is a great gold deposit to be found in North Qilian mountains during the last decade of the twentieth century.By analysing ore-forming setting,geological features,ore-forming marks and ore-control factors of the deposit,authors consider its ore-forming matter mainly comes from calc-alkaline intermediate-acidic pyroclastic rocks of island arc,ore-bodies are controlled by multi-degree faulted system and mainly occurrence in strongly schistosity of ductile-brittle shear zone,mineralization happened in or after the period of intermediate-acidic magma positioning and solidify ing during the compression-extend climacteric of coliision orogenesis,the heat-driving force mainly comes from deepmag machamber or intermediate-acidic intrusive bodies.The genetic type of the depositis at ectonic-altered gold deposit related to volcanic rocks.From what has been discussed above,authors summarize and induce met-allogenic model and comprehensive prospecting criteria of the deposit.
- gold deposit /
- ore-control condition /
- metallohenic model /
- Hanshan /
- North Qilian mountains

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