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吉林南部太古宙辉石花岗岩类具有与英云闪长质─奥长花岗岩质－花岗闪长质片麻岩（ＴＴＧ）及深熔钾长花岗岩不同的特征，并不是ＴＴＧ岩系的一部分。地质学、岩石学及地球化学研究表明，该辉石花岗岩类是壳源岩浆结晶分异作用的结果，其岩浆演化主要受早期结晶的辉石、斜长石及角闪石等矿物相的制约。
The archean pyroxenecites in southern Jilin are different from TTG-granodiorite gneisses (TTG) and deep-potash magmatite and are not part of the TTG series. Geology, petrology and geochemistry have indicated that the pyroxene granites are the result of crustal magmatic crystallization differentiation. The magmatic evolution of the pyroxene granite is mainly controlled by the mineral phases of the early crystalline pyroxene, plagioclase and hornblende .