清水河东沟铜钼矿床地质特征及成因类型分析

Geological characteristics and minerogeneic mechanism of the Qingshuihedonggou copper-molybdenum deposit

根据清水河东沟铜钼矿床地质特征及矿体蚀变分带特征,研究认为清水河东沟铜钼矿床成因类型属于斑岩型铜钼矿床,其成矿围岩为中元古界小庙组变质岩,成矿原岩为浅成—超浅成云英闪长斑岩体。沿斑岩体垂直分布4个规模较大的矿体。矿体形态单一,大多产于岩体内和围岩接触带。矿体延伸稳定,品位相对富集。岩体和围岩蚀变强烈,明显受区域变质作用影响。

Based on the analysis of the geological characteristics and alteration type of Cu-Mo deposit in Qingshuihedonggou,it is believed that the genesis type of copper deposit in Qingshuihedonggou can be attributed to copper molybdenum deposit.The surrounding rock of mineralization is metamorphic rock of Middle Proterozoic Small Temple Group.Metallogenic original rock is diorite porphyry body rock belonging to hypabyssal-ultra shallow type.Along porphyry body,it has four large ore bodies with vertical distribution.Ore body form is simple,of which most originates from contact zone between rock mass and surrounding rock.Extension of ore body is stable and taste is relatively abundant.Rock mass and wall rock alteration are fierce,which are evidently influenced by regional metamorphism.