Miocene Regional Hotspot-related Uplift, Exhumation, and Extension North of the Snake River Plain: Evidence from Apatite (U-Th)/He Thermochronology
Vogl JJ, Min K, Carmenate A, Foster DA, Marsellos A. 2014. Miocene Regional Hotspot-related Uplift, Exhumation, and Extension North of the Snake River Plain: Evidence from Apatite (U-Th)/He Thermochronology. Lithosphere. 6(2):108-123
Passage of North America over the Yellowstone hotspot has had a profound influence on the topography of the northern Rocky Mountains region. One of the most prominent hotspot-related topographic features is the Yellowstone crescent of high terrain, which consists of two elevated shoulders bounding the eastern Snake River Plain and converging at a topographic swell centered on the Yellowstone region. We have applied single-grain (U-Th)/He dating to apatites (AHe) collected from the Pioneer-Boulder Mountains on the northern arm of the Yellowstone crescent of high terrain to constrain the timing, rates, and spatial distribution of exhumation.