The Yefushan rock mass is mainly composed of quartzsyenite porphyry.
冶父山岩体主体岩性为石英正长斑岩。
2
Fayalite-bearing quartzsyenite could represent the early fractional stage initial granitic magma derived from archean protolith in a deeper and reductive environment.
含铁橄榄石石英正长岩,代表了岩浆分离结晶初期还原条件下,太古代母岩派生的初始岩浆组成。
3
It is composed of four rock units, they are gabbro, pyroxene syenite, (quartz) syenite and syenogranite from early to late.