The part of a geosyncline that is characterized by the presence of volcanism and plutonism. Geosynclinal theory has needed some reinterpretation and modification in the light of the newer, unifying theory of plate tectonics.
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。