【作者】 杨文采； 许志琴；

【Author】 Yang Wencai Xu Zhiqin (Institute of Geology,Chinese Academy of Geological Sciences,Beijing,100037)

【机构】 中国地质科学院地质所；

【摘要】 大别-苏鲁超高压变质带是世界上研究陆-陆碰撞和聚敛板块边缘地壳行为的最佳地质场地之一。本文根据最新取得的资料,介绍了这个地区的基本地质和地球物理特征,分析了超高压变质岩石形成和折返的机制和存在的问题,并对在此带内进行科学钻探的科学目标和孔位选定进行了科学论证。更多还原

【Abstract】 Dabie-Sulu Ultra-high pressure metamorphic(UHPM) belt is one of best sites in the world to study intra -continental collision and crustal behaviors of convergent plate boundaries.Based on newly obtained data, this article introduces the geological and geophysical characteristics of the UHPM belt,analyzes the mechanism and problems involved with formation and exhumation of the UHPM rocks,and provides fundamental evidences for both of the scientific rational and site-selection of the scientific drilling in the UHPM belt.更多还原