抚上州—绍兴地区中生代火山构造类型的划分

CLASSIFICATION OF VOLCANIC STRUCTURE IN MESOZOIC ERA IN THE FUZHOU-SHAOXING AREA

本文把抚州—绍兴地区的火山构造分类成四级:Ⅰ级为火山活动带;Ⅱ级为火山活动亚带;Ⅲ级分为正向、负向火山构造;Ⅳ级分为火山通道、火山口、隐爆角砾岩筒。并根据区内地质情况,对不同类型火山构造进行了阐述,同时还指出拗陷区的拗凸式和隆起区的隆凹式火山盆地,对铀矿化有利。

In this paper, volcanic structure in the Fuzhou-Shaoxing area can be classified into Ⅳ grades: the Ⅰ grade be the zone of volcanic activity; the Ⅱ grade be the second zone of volcanic activity; the Ⅲ grade be the positive, negative volcanic structure; the Ⅳ grade be volcanic conduit, volcanic crater, concealed eruption breccia pipe. Based on the geological situation in this area, the different types of volcanic structure are also dealt with. In the mean time, both the embossed type in the depression area and the depressed type in the embossed area in the volcanic basin are pointed out. It is of great advantage to Uranium mineralization.