The Ore Mineralogy Characteristics and Genetic Significance of Luanling Gold Deposit,Henan Province

Luanling gold mine is located in the east of Xiaoqinling metallogenic belt,it belongs to telluride-type gold deposit.The ore mineral composition is simple in this area,metallic minerals are mainly native gold,telluride and sulfide,the native gold form in the early stages of polymetallic sulfide,but the gold telluride form in the late stages of telluride.Telluride minerals are mainly tellurium gold ore,tellurium gold and silver ore,needle tellurium gold and silver ore,tellurium silver ore and so on.There are two types of gold occurrence,which are sub-microscopic gold and visible gold.According to the results of phase analysis,we think gold mineral is mainly gold package,crack gold and intergranular gold are relatively less.By analyzing the process of ore forming of the mine,we draw that the genesis is low temperature telluride hydrothermal gold deposit.