| 肖 力.西秦岭岷-礼成矿带岩浆活动与金矿成矿模式探讨[J].地质与勘探,2014,50(Z1):1291-1298 |
| 西秦岭岷-礼成矿带岩浆活动与金矿成矿模式探讨 |
| Discussion on the magmatic activity and gold metallogenic model for the Ming-Li gold mineralization zone in West Qin Ling |
| 投稿时间：2014-03-28 修订日期：2014-09-16 |
| DOI： |
| 中文关键词: 金矿床 岩浆活动 成矿模式 岷-礼成矿带 |
| 英文关键词: Gold deposits, Magmatic activity, Mineralization model, Ming-Li gold mineralization zone |
| 基金项目:中国地质调查局调查评价项目（编号：1212011220662）甘肃岷县寨上－马坞地区金矿整装勘查区金矿调查评价及综合研究资助 |
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| 中文摘要: |
| 岷-礼成矿带发现较多大型金矿，同时在岩体内发现斑岩型钼矿。金矿床矿石中除有低温矿物外，还有黄铜矿、白钨矿等中-高温矿物，白钨矿在寨上金矿中是载金矿物之一；钼矿中也有黄铜矿、白钨矿矿物；金、钼、钨矿化分带有一定空间关系；金矿床地球化学、稳定同位素、放射性同位素和流体包裹体的研究表明成矿物质，成矿流体有深源特征；中川岩体群的岩石学、年代学、岩石化学、微量元素、稀土元素特征表明岩体为复式岩体，具有壳幔混源特征；据此建立成矿带内受印支-燕山期岩浆活动控制的金矿成矿模式。 |
| 英文摘要: |
| Many large gold deposits have been found in the Ming-Li gold mineralization zone, meanwhile porphyry molybdenum deposits in rock mass there. In addition to low-temperature ore minerals, there are also mesotherm-high temperature minerals such as chalcopyrite and scheelite. Scheelite is one of the gold carrying minerals in the Zhaishang gold deposit. Chalcopyrite, scheelite also occurs in the porphyry molybdenum. Gold, molybdenum, and tungsten mineralization were settled in zones with a certain spatial relations. Study on gold deposit geochemistry, stable isotope, radioactive isotopes and fluid inclusions shows that the ore-forming material and ore-forming fluid might stem from deep sources. Nakagawa petrology, rock group chronology, petrochemistry, trace elements, and REE characteristics suggest that the rock mass is a composite rock body with the characteristic of a crust-mantle mixed source. Based on the data above, a mineralization model controlled by Indosinian- Yanshanian magmatic activity is established for the Ming-Li gold mineralization zone. |
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