Magmatic rocks are developed, and are mainly intermediate and acid rocks, represented by Jianligou phyric biotite-granite and Jianligou phyric granodiorite.
本区岩浆岩非常发育，主要为中酸性岩浆岩，以江里沟斑状黑云母花岗岩和江里沟斑状花岗闪长岩为代表。
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