华铜酸性侵入岩(斑状花岗岩)与围岩(白云石大理岩及黑云母角岩)的同化混染现象,在矿区各井田屡屡出现,是接触带上的一种普遍现象.它不仅使岩浆岩发生不同程度的变异,而且与早期镁夕卡岩的形成有密切的关系.因此要详细划分区内镁、钙夕卡岩的世代,探讨它的成因,就不能不涉及同化混染所起的作用. The assimilation and contamination of the Hua Cu acid intrusive rocks (porphyritic granites) and the surrounding rocks (dolomite marble and biotite rock) have repeatedly appeared in various mine fields and are a common phenomenon on the contact belt. There are different degrees of variation of rock, and it is closely related with the formation of early-age magnesium skarn.Therefore, to delineate the generation of magnesium and calcium skarn in detail and to explore its cause, we can not but involve the assimilation of contamination Role.