摘要
区内的成矿时代发生在147.9~76 Ma之间;在多期构造岩浆活动影响下,镁铁质、长英质火山喷发岩及与其相近时间的花岗岩(TTG岩系)岩石中的金发生活化、迁移、再分配,在裂隙扩容带中发生富集;区内区域构造和韧性剪切带以及韧性剪切带中出现脆性剪切构造是有利的金矿存矿空间;金矿成因属于岩浆热液作用石英脉型金矿。
The metallogenic epoch in the study area occurred between 147.9 and 76 Ma.Influenced by multi-stage tectono-magmatic activities,gold in mafic and feldspathic volcanic eruptive rocks and granite(TTG se-ries)rocks of similar ages is activated,migrated and redistributed,and enriched in the fissure expansion zone.The occurrence of brittle shear structures in regional structures,ductile shear zones and ductile shear zones in the study area is favorable for gold deposits.The genesis of gold deposit belongs to magmatic hydrothermal quartz vein type.
作者
魏长雨
Wei Changyu(The Fourth Geological Exploration Institute of Henan Geology and Mineral Exploration and Development Bureau,Zhengzhou 450001,China)
出处
《有色金属设计》
2019年第3期105-108,共4页
Nonferrous Metals Design
关键词
金矿
地质特征
成因分析
樊岔
灵宝市
Gold deposit
Geological characteristics
Genetic analysis
Fancha
Lingbao City
