| 福建省南靖县南坑钼矿床地质特征及找矿标志 |
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| 作者姓名： | 黄建平 |
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| 作者单位： | 福建省闽东南地质大队,泉州,362011 |
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| 基金项目： | 福建省地质矿产勘查开发局、福建省闽东南地质大队和厦门晟鑫隆矿业有限公司"福建省南靖县南坑矿区钼矿详查 |
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| 摘 要： | 通过总结福建省南靖县南坑钼矿床的地质特征,认为该钼矿床为斑岩型钼矿床,钼矿体主要赋存于燕山早期花岗岩与文宾山组接触带,主要产在燕山早期花岗岩体内,受缓倾斜的石英脉和网脉状石英细脉控制,矿石类型为石英粗脉型和石英细脉型。该钼矿床具有弱磁异常,原生晕、次生晕异常发育,钼次生晕异常在深部见矿效果较好;与钼矿体关系密切的蚀变主要有云英岩化和硅化,找矿标志主要为燕山早期花岗岩、白楼—下楼断裂带、晚三叠世文宾山组、云英岩化、硅化及物化探异常,以上认识对区域寻找类似钼矿床具有参考价值。
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| 关 键 词： | 南坑钼矿床 地质特征 找矿标志 南靖县 福建 |
| 收稿时间： | 2018-01-12 |
| 修稿时间： | 2018-04-15 |
Geological characteristics of the Nankeng molybdenum ore deposit in Nanjing County,Fujian Province,and its indicators for prospecting |
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| Authors: | Huang Jian-ping |
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| Affiliation: | (Southeastern Fujian Geological Party of Fujian province, Quanzhou 362011, China) |
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| Abstract: | Through summarizing the geological characteristics of the Nankeng molybdenum deposit in Nanjing County,Fujian Province,this study concludes that the deposit belongs to porphyry-type molybdenum ore deposit.Molybdenum orebodies occur mainly along the contact zone between early Yanshanian granite and surrounding rock Wenbingshan Formation,predominantly within early Yanshanian granite.The orebodies are controlled by gently-dipping quartz veins and stockwork quartz veinlets.There are two types of ores:quartz vein and quartz veinlets.The Mo-bearing deposit is characterized by weak magnetic anomalies,well development of primary halo and secondary halo,with the secondary halo anomaly showing good mineralization especially at depth.Alteration closely related to Mo mineralization contains greisenization and silicification and etc.The indicators for prospecting mainly are early Yanshannian granite,Bailou-Xialou fault zone,Wenbingshan Formation of late Triassic,greisenization and silicification,geophysical and geochemical anomaly,etc.The understanding above is of some references for finding similar molybdenum ore deposits in the area. |
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| Keywords: | Nankeng molybdenum ore deposit geological characteristics prospecting indicators Nanjing County Fujian Province |
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