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分析了大别造山带核部典型燕山期侵入体中的斜长石、黑云母和角门石的化学成分和成因特点，并从矿物平衡角度讨论了典型侵入体岩石成因。结果表明：（１）石鼓尖侵入岩中，斜长石成分较稳定，共生角门石和黑云母为岩浆平衡结晶的矿物；（２）天堂寨和九资河侵入岩中，部分斜长石和黑云母可能为熔蚀残留矿物，角闪石属于火成岩区的新生矿物，可能为斜长石和黑云母发生熔融反应所形成；（３）三个侵入体的岩石均为岩浆成因。
The chemical composition and genesis of plagioclase, biotite and gablestone in typical Yanshanian intrusions in the core of the Dabie orogenic belt are analyzed. The genesis of the typical intrusive rocks is discussed from the perspective of mineral balance. The results show that: (1) Intruding rock at the Shigu point, the composition of plagioclase is relatively stable, the intergrowth corner stone and biotite are the mineral of balanced magma crystallization; (2) Tiantangzhai and Jiuzihe intrusive rocks, some plagioclase and black Mica may be the remnants of the remnant minerals, amphiboles belong to the new igneous minerals in igneous rocks, which may be formed by the melt reaction of plagioclase and biotite. (3) The rocks of the three intrusions are all magmatic origin.