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中国东部中生代火山岩非常发育,出露面积达120万平方公里(图1)。由于各种金属、非金属矿床都直接或间接与其有成因联系;而且愈来愈清楚地表明,中生代火山活动在时间上、空间上都与板块运动息息相关,因此日益引起广大地质工作者的注意。
The Mesozoic volcanic rocks in eastern China have developed very well, exposing an area of 1.2 million square kilometers (Figure 1). Because all kinds of metal and nonmetallic deposits are genetically related directly or indirectly to them, and more and more clearly show that Mesozoic volcanic activity is closely related to the plate movement in time and space, and therefore attracts more and more geological workers.