摘要
云南北衙铁金矿是我国西南地区典型的铁金多金属矿床,文章重点研究了北衙铁金矿太极洞-锅盖山矿段的地质特征。研究认为该矿床的成矿过程与石英正长斑岩密切相关,为喜马拉雅期富碱斑岩成矿体系的演化过程;虽然矿床成因类型多样,但总体上与岩浆活动及构造关系密切,其矿床形成机制一致,只是赋矿部位差异而形成了不同类型的矿体;岩浆岩标志、构造标志和地层标志是重要的间接找矿标志,蚀变标志、氧化带标志和采矿遗迹是重要的直接找矿标志。
Yunnan Beiya iron gold mine is a typical iron-gold polymetallic deposit in southwest China,and this paper focuses on the geological characteristics of the Taijidong-Guogaishan section of Beiya iron gold mine.It is concluded that the mineralization process of this deposit is closely related to quartz s-long porphyry,which is the evolution process of alkalirich porphyry mineralization system in the Himalayan period.Although the genesis types of ore deposits are diverse,they are generally closely related to magmatic activity and structure,and the formation mechanism of ore deposits is consistent,but different types of ore bodies are formed due to the difference in ore endowment parts.Magmatic rock markers,tectonic markers and stratigraphic markers are important indirect prospecting signs,and alteration markers,oxidation zone markers and mining remains are important direct prospecting signs.
作者
张平
倪明洪
杨盛才
ZHANG Ping;NI Ming-hong;YANG Sheng-cai(Yunnan Gold Mining Group Co.,Ltd.,Kunming 650224,China)
出处
《世界有色金属》
2022年第23期70-72,共3页
World Nonferrous Metals
关键词
铁金矿床
地质特征
找矿标志
围岩蚀变
富碱斑岩
iron-gold deposits
geological features
prospecting markers
surrounding rock alteration
alkali-rich porphyry
