铜陵地区矽卡岩型铜矿的构造控制

Structural control to skarn-type copper deposits in Tongling area, Anhui Province

铜陵地区矽卡岩型铜矿沿近 EW向基底断裂构造 -岩浆带分布 ,构成一条构造 -岩浆 -铜矿带 ,含矿岩体及矿田 (床 )常分布在盖层构造与基底断裂交汇部位。容矿构造可分为圈闭构造、热动 (塑性 )构造、岩体接触带、断裂与裂隙带及层间构造 ,几种构造并存的复合部位控制着矿体的定位及产状。

Skarn-type copper deposits in Tongling area distribute along a set of nearly EW-striking basement faults,constituting a tectonomagmatic copper-mineralized belt. The copper-mineralized plutons and copper deposits usually located in the convergence points of the basement faults with superficial faults. The host structures can be divided into trap-type,thermodynamic(ductile) type, contact zone-type and interlayer gliding faults or fissure zone, They jointly control the location and occurrence of the copper orebodies.