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在系统总结和分析前人成果的基础上，运用前寒武纪地质学新理论和同位素年代学方法，对海南岛前寒武纪地壳的组成、时代和演化进行了研究和讨论．初步将海南岛前寒武纪基底岩系划分为琼中新太古宙紫苏花岗岩－片麻岩系、琼西古中元古宙绿岩系和中元古宙花岗岩类以及石碌新元古宙变质沉积－火山岩系等３种地质实体，并将前寒武纪构造演化划分为新太古宙结晶基底形成、古中元古宙陆壳裂解、中元古宙俯冲造山和新元古宙裂陷－冰川事件４大演变阶段．研究表明海南岛陆壳隶属华南陆壳的组成部分，其前寒武纪构造演化是华南陆壳早期演变历史的缩影
Based on the systematic summarization and analysis of previous achievements, the composition, age and evolution of Precambrian crust in Hainan Island are studied and discussed by applying the new theory of Precambrian geology and isotope chronology. The Precambrian basement rocks in Hainan Island are initially divided into the Qiongzhong Neoprene Perish Granite-Gneiss, the Qiongxi Middle Proterozoic Greenstone and Mesoproterozoic granites, and the Shilu Neoproterozoic Metamorphic sedimentary-volcanic rocks and other three kinds of geological entities, and the Precambrian tectonic evolution is divided into the new Archean crystalline basement formation, Paleozoic crustal cracking, the Proterozoic subduction orogeny and Neoproterozoic Trap - Glacial Incident 4 major evolution stages. The study shows that the continental crust of Hainan Island is a component of the continental crust in South China. The Precambrian tectonic evolution is a microcosm of the early evolution of continental crust in South China