Structural, Petrological and Geochronological Studies of the Granulite to Eclogite Transformation in the Deep Continental Crust, Bergen Arcs, Norway

对地壳深部岩石的折返过程仍知之甚少。挪威西部卑尔根弧内加里东大陆地壳的极深暴露使麻粒岩区域性地暴露在榴辉岩过渡岩中，从而为了解后来被剥离的陆-陆碰撞造山系统的根源提供了一扇窗。该项目将从变质关系、温压测量和地质年代学中得出P-T-t轨迹。对构造关系的系统观察，结合岩石学和年代学结果，应能对加里东尼德深部地壳的构造演化和大陆-大陆碰撞带造山过程的理解提供重要的见解。

Exhumation processes of deep crustal rocks are still poorly understood. Exceptionally deep exposures of Caledonian continental crust within the Bergen Arcs of western Norway regionally expose granulite to eclogite transition rocks, thus offering a window into the roots of a continent-continent collisional orogenic system that subsequently was unroofed. This project will derive P-T-t paths from metamorphic relationships, thermobarometry and geochronology. Systematic observations of the structural relationships combined with the petrologic and geochronologic results should provide significant insights into both the tectonic evolution of this deep crustal portion of the Caledonides and the understanding of orogenic processes in continent-continent collisional belts.