Crustal Reflection Profiling Across the Oldest Archean Crust and Crustal Sutures, West Greenland: Processing and Interpretation

西格陵兰岛的太古代岩石代表了一些最暴露、研究最透彻、最古老的已知岩石，因此构成了地壳反射研究的主要目标。当“深层”地震数据与地表地质相关联时，地壳反射数据的解释取得了最大的成功。因此，西格陵兰岛的太古代是一个极好的地球物理目标，因为它的暴露和年龄允许研究早期地壳过程。该奖项支持最近在该地区完成的重力研究和重力与磁场联合调查的解释。这项研究是挪威、丹麦和美国科学家的合作项目。本文研究的问题包括：1)变形带向深部的延续；2)地壳的缩短和变形方式；3)地壳深部挥发物的作用；4)莫霍深度的变化；5)太古代地壳的发育；6)颗粒作用下深部地壳的性质。

The Archean rock of West Greenland represent some of the best-exposed, best-studied, oldest rocks known and thus constitute a prime target for crustal reflection studies. Interpretation of crustal reflection data has attained its greatest success where "deep" seismic data was correlated with surface geology. The Archean of West Greenland is thus an excellent geophysical target because of its exposure and age that allows the study of early crustal processes. This award supports the interpretation of a recently completed gravity study in the area and a combined gravity and magnetic investigation. The research is a cooperative project between Norwegian, Danish, and U.S. scientists. Problems being addressed by this research include: 1) continuation of the deformation zone to depth, 2) crustal shortening and mode of deformation, 3) role of volatiles in the deep crust, 4) change in Moho depth, 5) Archean crustal development, and 6) nature of deep crust under granulities.