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四川盐源西范坪斑岩铜矿的成矿母岩为喜山期石英二长斑岩，Nd、Sr、Pb、O同位素资料证实，它属于同熔型，源岩可能为区内未出露的中元古代末期火成岩。矿床中石英流体包裹体具有高的均一温度，高的盐度，并含有少见的黄铜矿子晶。成矿热液的δ18O值为9．34‰～4．16‰，表明它们主要由岩浆水组成，有少量大气降水混入，Pb、S同位素研究表明，成矿组分主要来自岩浆，部分来自围岩。
The ore-forming parent rocks of the Xifanping porphyry copper deposit, Yanyuan, Sichuan, are isotopic data of Nd, Sr, Pb and O from the Himalayan quartz-porphyritic rocks. It belongs to the same melting type and the source rocks may not be present in the area Dew the late Proterozoic igneous rock. Quartz fluid inclusions in the deposit have high homogenization temperature, high salinity, and contain rare chalcopyrite. The δ18O values of ore-forming hydrothermal fluids range from 9.34 ‰ to 4.16 ‰, indicating that they are mainly composed of magmatic water with a small amount of atmospheric precipitation. Studies of Pb and S isotopes show that the metallogenic components are mainly derived from magma and partly from rock.