云南省鹤庆县白莲村金矿地质特征及找矿远景分析

On the geological characteristics and prospecting of gold Lotus Village in Heqing County of Yunnan Province

白莲村金矿体产于北西—南东向构造裂隙带中,受构造裂隙的严格控制,矿石类型为硅化、褐铁、黄铁、方铅、黄铜矿化构造蚀变岩型金矿石,金属矿物主要为自然金、黄铁矿、褐铁矿、方铅矿、黄铜矿。矿体主要产于峨眉山玄武岩、喜山中期石英二长岩及石英正长斑岩中,深部含矿热液沿导矿构造运移至容矿构造中,在物理、化学条件发生转变的位置,通过充填和交代作用富集成矿。初步认为白莲村金矿为岩浆热液充填交代脉型矿床。

Lotus Village gold deposit is in NW se trending tectonic fracture zone, strictly controlled by tectonic fissures, ore type and silicification, pyrite, limonite, lead, copper mineralization tectonic altered rock type gold ore minerals are native gold, pyrite, limonite, galena and chalcopyrite. Ore bodies are mainly produced in the basalt of Mount Emei, Himalayan quartz two feldspar and quartz syenite porphyry. Deep ore bearing hydrothermal fluids migrate along the ore guide structure to the ore hosting structure, where the physical and chemical conditions change, and are enriched by filling and metasomatism. Preliminary think Lotus Village gold deposit is a magmatic hydrothermal filling metasomatic vein type deposit.