granite porphyry roller crusher for sale - iucce
from biotite diorite outcropping near the Jinchanggou deposit area yield a UPb age of 221 1 Ma Wang et al. 2016. There are many types of dikes in the mine area, including granite porphyry, diorite, and diabase. The granite porphyry dykes and gold-bearing veins both occur along the F7 fault and they are closely related to each other,