A ring dike or ring dyke in geology refers to an intrusive igneous body. Their chemistry, petrology and field appearance precisely match those of dikes or sill, but their concentric or radial geometric distribution around a centre of volcanic activity indicates their subvolcanic origins.
网络释义
1、[地质]环状岩脉
... 环状特征 circular feature 环状岩脉 ring dike 环状岩墙 ring dyke ...
2、环状岩墙
... ring counter 环形计数器 ring dike 环状岩墙 ring fault 环状断层 ...