An irregular seismic discontinuity within the upper continental crust, at 8–11 km depth, usually interpreted as a change from upper granitic rocks to deeper dioritic composition. See also conrad discontinuity; mohorovičić discontinuity.
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。