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脉岩分布在某地槽区一背斜构造轴部的太古代变质岩和燕山期花岗岩、花岗斑岩中。该区脉岩有中-基性脉岩(闪长岩、黑云母角闪岩、煌斑岩),酸性脉岩(花岗斑岩、花岗伟晶岩、霓石正长岩、石英斑岩)和石英碳酸盐脉,构成了一个脉岩群。 太古代变质岩系。下部出露在背斜构造的轴部,为黑云外长片麻岩、混合岩化黑云斜长片麻岩、角闪黑云斜长片麻岩,有时彼此互层出现,某些地段见大理岩夹层;上部分布在背斜构造的两翼,为黑云斜长片麻岩、角闪斜长片麻岩、花岗质混合片麻岩,局部夹大理岩
The veins are distributed in the Archean metamorphic rocks and Yanshanian granites and granite porphyries in the axis of a tectonic-anticline zone in a certain area. There are medium-basic vein rocks (diorite, biotite amphibolite, lamprophyres), acidic veins (granite porphyry, granitic pegmatite, argilla syenite, quartz plaque Rock) and quartz carbonate veins, forming a vein group. Archean metamorphic rocks. The lower part is exposed in the anticlinal axis and is composed of biotite outer gneiss, mixed biotite plagiogneiss, hornblendendrite plagioclase gneiss, and sometimes interbedded with each other. In some areas, see Marble interlayer; the upper part of the anticlinal structure in the two wings, for the dark plagioclase gneiss, amphibolite gneiss, granitic mixed gneiss, local folder marble