Porphyry rocks in this belt are intermediate-acid rocks of calc-alkaline series.
Porphyry rocks in this belt are intermediate-acid rocks of calc-alkaline series.
该斑岩带斑岩属钙堿性系列、中酸性岩类。
Porphyry rocks in this belt are intermediate-acid rocks of calc-alkaline series.
该斑岩带斑岩属钙堿性系列、中酸性岩类。