Extension of a convergent orogen: Structural evolution of the high-pressure/low-temperature schist belt, Brooks Range, Alaska

Metamorphic rocks in the core of the Brooks Range orogen contain fabrics recording plate convergence (D;Spatial trends in geochronologic data and large-scale map relations indicate collapse of steeply dipping layering within the epidote-amphibolite facies rocks. ;Porphyroblast-matrix microstructures in the epidote-amphibolite facies rocks reveal the mechanism and magnitude of extension. D;Quartz petrofabrics record evidence of both D...