Steeply dipping dyke of arcuate outcrop formed by the uprise of magma along a steep conical or cylindrical fracture which bounds central collapsed blocks. See also cauldron-subsidence.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。