海洋山花岗岩体由４个单元组成，自早期五马山单元到晚期蓝家单元，其中ＳｉＯ２，Ａｌ２Ｏ３，Ａｓ，Ｒｂ含量增高；ＴｉＯ２，ＭｎＯ２，ＦｅＯ＋Ｆｅ２Ｏ３，Ｔｈ，Ｓｃ，Ｃｏ，Ｎｉ，Ｖ含量减少；岩石能量从３．７７７×１０６Ｊ／ｍｏｌ递增到３．９７６×１０６Ｊ／ｍｏｌ。该岩体为华南加里东晚期扬子地块与华夏地块碰撞对接的结果，具有明显的同源岩浆演化特征。随着岩浆的演化，岩石部分熔融程度逐渐降低，上地壳物质成分的加入越来越少。 The content of SiO2, Al2O3, As and Rb in the Oceanic granite body is composed of 4 units, ranging from the early Wushan unit to the late Lanjia unit. The contents of TiO2, MnO2, FeO + Fe2O3, Th, Sc, Co, Ni and V decrease ; Rock energy increased from 3.777 × 106J / mol to 3.976 × 106J / mol. The rock mass is the result of collisional docking between the late Caledonian Yangtze block and the Huaxia block in South China, and has obvious characteristics of homoeomagnetic evolution. As the magma evolves, the degree of partial melting of the rock gradually decreases and the composition of the upper crust material becomes less and less.