岩石矿物学杂志2017，Vol.36Issue(5)：733-742,10.
湖北大悟大磊山金矿矿床成因与控矿构造
Origin and ore-controlling structure of the Daleishan gold deposit in Dawu area,Hubei Province
摘要
Abstract
The authors conducted mapping in the mining area on the basis of detailed field geology and,in combination with the previous research results,fully analyzed gold ore-controlling structures and genesis of the Daleishan deposit.It is held that the ore-guiding and matching structures of the gold deposit belongs to a new type,and both structures are not fault,but belong to the formation of shear zone formed by upward migration of the Daleishan granite dome caused by magrnatic activity during the Yanshanian epoch,which provided the channel for late ore-guiding structure and matching structure;Neoproterozoic gneissic monzogranite provided the gold with higher gold element background values for the gold deposit,and magmatic activities not only caused the activation migration of gold element but also provided the gold metallogenic material source.The gold ore deposit was a post-magma low temperature magmatic hydrothermal deposit.According to the geological feature that the gold quartz vein fills in the crack of lamprophyre,the authors used LA-ICP MS zircon U-Pb dating and obtained a lamprophyre diagenetic age of 126.8 ± 2.0 Ma,which confined the mineralization age of the Daleishan gold deposit.关键词
大磊山金矿/矿床成因/控矿构造/花岗岩穹窿/周缘接触带Key words
Daleishan gold deposit/genesis of mineral deposit/ore-controlling structure/granite dome/peripheral contact zone分类
天文与地球科学引用本文复制引用
曹正琦,谢应波,周向辉,李华亮,蔡逸涛,李成凯,宋汉,吴波,李琳静..湖北大悟大磊山金矿矿床成因与控矿构造[J].岩石矿物学杂志,2017,36(5):733-742,10.基金项目
中国地质调查局资助项目(12120114048301)Project of China Geological Survey(12120114048301) （12120114048301）
