闽浙东部火山岩分布区,系指浙江绍兴—江山断裂和福建政和—大埔断裂以东的广大地区,位于环太平洋古火山带内.火山岩广泛发育,火山活动从晚三迭世时已经开始,并初具规模,以晚侏罗世—早白垩世最为强盛,不仅规模庞大,而且表现为由弱到强到弱的多次喷发.火山活动明显受断裂控制. The distribution of volcanic rocks in eastern Fujian and eastern Zhejiang refers to a vast area east of Shaoxing-Jiangshan fault and Fujian-Zhenghe-Dabu fault in the ancient Pacific Rim volcano. Volcanic rocks are widely developed and volcanic activity has started from the late Triassic , And took shape to the extent that the Jurassic-Early Cretaceous was the most prosperous, with not only large scale but also multiple eruptions from weak to strong and weak. The volcanic activity was obviously controlled by the fracture.