本文对湖南省及其邻区火山岩在时间上、空间上分布,及其岩石学、岩石化学特征进行了系统的总结,其中奥陶系、泥盆系、石炭系以及中、下侏罗统的火山岩系作者在本区首次发现。在此基础上,本文用板块理论作指导,根据本区不同时代火山岩,特别是前寒武纪火山岩的岩石学、岩石化学特征,进行探讨它们形成的板块构造环境。 In this paper, volcanic rocks in Hunan Province and its adjacent areas are distributed in time and in space, and their petrological and petrochemical characteristics are systematically summarized. Ordovician, Devonian, Carboniferous and Middle-Lower Jurassic Volcanic series authors first discovered in this area. Based on this, the paper uses the plate theory as a guideline and discusses the tectonic setting of the plate tectonics based on the petrologic and petrochemical characteristics of volcanic rocks of different ages in this area, especially the Precambrian volcanic rocks.