摘要
通过野外工作， 在双井子地区发现一较为典型的古火山构造－ 空心山火山机构， 其形成时代为晚石炭世。火山机构呈特殊的环状地貌特征， 周围发育明显的环状断裂和放射状岩墙， 并由爆发相、喷溢相、火山颈相和侵入相４ 种岩相构成， 表现出一种爆发－ 喷溢－
Typical ancient volcanism-volcanic apparatus of Konxinshan are found in the field work in Shuanjinzi area. Forming era is Late Carboniferous. It is characterized by peculiar geomorphology associated with perfect ring fractures and radial dykes. It is composed of erupt facies , effusionfacies, volcanic neck facies and intrusive facies,displaying a simple volcanic activity of erupt-effusion-intrusion.
出处
《桂林工学院学报》
1999年第4期310-314,共5页
Journal of Guilin University of Technology
基金
原地质矿产部1:5 万区域地质调查项目
