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辽宁省花岗岩的斜长石一般呈板状,以中细粒为主。常见韵律环带,费氏台所测环带核心与边缘An相差18—26号。环带结构发育在多次侵入形成的花岗岩中,环斑、反环斑和无环斑斜长石同时出现。斜长石总平均含量为37％,最高含量75％。斜长石与寄主岩石的1/3 SiO_2+K_2O-FeO-MgO -CaO(％)值成反相关。延性系数与冷却速度、岩石类型与后期变化有关。斜长石An18—36,X光衍射有序度为0.3—1.0,有序度变化与岩体时代关系不明显,均为低温斜长石,形成温度400—920C°,形成压力为0.07—1GPa,结晶深度约2—33km。
The plagioclase of granite in Liaoning Province is usually plate-shaped, mainly in fine-grained. Common rhythm ring, Fei’s ring measured with the core and edge An difference of 18-26. The structure of the belt developed in the granite formed by multiple intrusions. Ringed, anti-cycloporphyrin and acyclic plagioclase show up simultaneously. The average plagioclase content of 37%, the highest content of 75%. The plagioclase is inversely related to the 1/3 SiO_2 + K_2O-FeO-MgO-CaO (%) value of host rocks. Ductility coefficient and cooling rate, rock type and later changes. An18-36 plagioclase, X-ray diffraction order of 0.3-1.0, the degree of change and rock age is not obvious, are low-temperature plagioclase, the formation temperature of 400-920C °, the formation of pressure of 0.07-1GPa , The crystallization depth of about 2-33km.