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桐庐和相山杂岩体分别属于同熔型和陆壳重熔型火山－侵入杂岩系列，通过对这两个系列中的斜长石及碱性长石进行了对比研究。桐庐杂岩体中存在两种斜长石及两种碱性长石，而相山杂岩体中只有一种斜长石及一种碱性长石。桐庐杂岩体中的两种斜长石，一种为环带构造发育、中心绢云母化较强的斜长石，其中心成分有的已达培长石，而边缘主要为更长石，另一种为环带构造不发育的斜长石，其成分变化较小，主要为中长石；而两种碱性长石中一种为无色透明的透长石，其内部均匀分布有规则的出溶微结构，另一种为微红色的正长石，基本上看不到出溶结构，这两种碱性长石结构不同但成分基本相似。笔者认为桐庐杂岩体中存在的两种斜长石及两种碱性长石反映了岩浆的不平衡结晶作用，这种不平衡主要是岩浆上升过程中带状岩浆房的扰动引起的；而相山杂岩体中的长石反映了一种近平衡结晶的岩浆环境
The Tonglu and Xiangshan complexes belong to the same type of volcanic and continental crustal remelting volcanic-intrusive complex respectively. By comparing the two series of plagioclase and alkaline feldspar, a comparative study was made. There are two kinds of plagioclase and two kinds of alkaline feldspar in the Tonglu complex, while only one plagioclase and alkaline feldspar in the Xiangshan complex. Two kinds of plagioclase in Tonglu Complex, one is plagioclase with developed zonation structure and strong sericite in the center, some of which have reached the center of the composition of the pearlite, while the edge is mainly a longer feldspar, The other is plagioclase with undeveloped zone structure. The composition of the plagioclase is small and medium-feldspar. One of the two types of alkaline feldspar is a colorless and transparent pegmatite with uniform distribution inside The rules of the dissolution of microstructure, and the other is reddish feldspar, basically can not see the dissolution structure, the two basic feldspar structure is different but the composition is basically similar. The author thinks that two kinds of plagioclase and two kinds of alkaline feldspar exist in Tonglu complex and reflect the unbalanced crystallization of magma. This kind of imbalance is mainly caused by the disturbance of zonal magma chamber in the process of magma ascending; Feldspars in the Xiangshan Complex reflect a magma environment that is near equilibrium crystallization