| 程彧,张旺定.西秦岭中川地区构造-岩浆活动及微细浸染型金矿成矿作用分析[J].地质找矿论丛,2001,(2):94-98 |
| 西秦岭中川地区构造-岩浆活动及微细浸染型金矿成矿作用分析 |
| STRUCTURAL AND MAGMATIC ACTIVITY AND THE RELATION TO GOLD MINERALIZATION IN ZHONGCHUAN AREA, WEST QINLING |
| 投稿时间：2000-11-10 修订日期：2001-02-10 |
| DOI：10.6053/j.issn.1001-1412.2001.2. 004 |
| 中文关键词: 构造-岩浆活动 金成矿作用 中川地区 西秦岭 |
| 英文关键词:activity of structure and magma gold mineralization Zhongchuan area |
| 基金项目:甘肃有色地质勘查局人才工程基金资助. |
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| 中文摘要: |
| 中川地区历经了韧性→脆韧性→脆性变形3阶段,遭受了3期5次岩浆侵入。李坝式金矿床为中低温浅成热液-岩浆再造矿床,其矿源层主要为晚古生代沉积建造,成矿过程经历了早期金元素活化迁移阶段、构造-热液成矿作用改造阶段和印支—燕山期岩浆作用再造阶段。区域性深大断裂是成矿热循环的主通道,成矿流体以大气降水为主,有部分岩浆流体参与成矿。 |
| 英文摘要: |
| Zhongchuan area underwent ductile→ductile-brittle→brittle deformation with 3 periods and 5 times of magmatic intrusion. Liba style Au deposits are medium-low epithermal-magma reworked deposits. Late palaeozoic sedimentary formations are the source beds. Ore formation included the early Au mobilization and transportation, tectonic-hydrothermal rework and Indo-China-Yanshanian magmatism rework. The regional deep fractures are main conduit of ore fluid which is dominated by meteoric water. |
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