SUMMARY
This article explains the structure and history of Crevice pluton. The structures found inside the pluton are observed which include the moderate to steep penetrative foliation, top-to-west shallow ductile shear zones and subvertical northwest-striking mode I fractures of regional extent. A research was conducted to examine the inside architecture and age of deformation of Crevice pluton, near the main fork of the Salmon River. This investigation also attempts to examine the relation that is assumed to exist between the different fabric patterns of Crevice Pluton. Laser ablation technique was also used to analyze zircon from Crevice Pluton and ...
