岩浆对热泉型金矿化作用的热影响

岩浆的余热为热泉型金矿化作用浅成热液循环系统提供热源，促使热液迁移循环并改变热液性质和状态。使近岩浆热液达到超临界的高温，为热泉型金矿化作用提供热力学条件。本文根据腾冲－梁河地热系统的特点及岩浆活动的一般特征，模拟计算了岩浆余热在热泉型金矿化作用中的演化过程。

THE THERMAL EFFECT OF MAGMA INTRUSION IN HOT SPRING-TYPE GOLD MINERALIZATION

Residual heaf of magma is Critical to the hydrothermal circulation system in the hotSpring--type gold mineralization. According to the parameters of Tengchong-Liangheisothermal field and the physical properlies of rock, we have calculated basaltic magmaand granite magma models with high background heat now. In two--dimensional thermalmodeling, we use a method of equivalent heat capacity to handle the latent heat effect. Theatmosphere precipitation is taken for main source in hydrothermal circulation system inour Study. It is suggested that thermal effect in favour or the hot spring--type goldgeneralization can last 0.2 million years in time depart 1 kilometers from magma intrusion.