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中国东南部,是西太平洋构造-岩浆-成矿带的重要组成部分,特别是闽、浙、赣三省,以及长江中下游和鲁东一带,自中生代以来,陆相火山活动频繁,喷发活动强烈,火山岩系发育广泛,许多大型金属和非金属矿床均赋存在这些火山岩中,从而引起了中外学者的注意。研究区内火山岩对于了解全区地质构造发展史,阐明地壳演化特征,以及探讨火山作用与成矿作用之间的关系,都具有相当重要的意义。
The southeastern part of China is an important part of the western Pacific tectonic-magmatic-metallogenic belt. Especially in the provinces of Fujian, Zhejiang and Jiangxi, and in the middle and lower reaches of the Yangtze River and in the Ludong area, since the Mesozoic, continental volcanoes have been frequently active and have strong eruptive activities Volcanic rocks are extensively developed. Many large-scale metal and nonmetal deposits are found in these volcanic rocks, attracting the attention of Chinese and foreign scholars. Studying the volcanic rocks in the study area is very important for understanding the history of geological structure in the whole region, clarifying the evolution characteristics of the crust, and discussing the relationship between volcanism and mineralization.