摘要
天鹅寨火山杂岩体是湘南—粤北地区唯一大面积出露的陆相酸性火山岩，内有铀矿点产出。通过对火山杂岩体的研究，论述了火山杂岩体产出特点、岩石学及地球化学特征，提出了火山岩层和火山活动旋回的划分、岩根新归属以及火山构造类型。
The volcanic-intrusive complex of Tianfezai is the only widespread terrestrial acidic vol-canics in North Guangdong-South Hunan area, where there are a few of uranium occurrences.Based on the study on volcainc-intrusive complex, its occurrence characteristics, petrology andgeochemistry characteristics are discussed as well as division of volcanic sequences and volcaniccycles, classification of volcanic facies and volcanic structure types are suggested.
出处
《火山地质与矿产》
1997年第2期105-115,共11页
Volcanology & Mineral Resources
关键词
火山地质
侵出相
火山构造类型
天鹅寨
火山
Volcanology characteristics extrusive facies volcanic structure type Tian ezai
