Collin Kehler, PhD candidate
QuiG geobarometry in the Nelson aureole, and Barrovian metamorphism in the northern Kootenay arc, south of Revelstoke, BC
Collin's PhD has two parallel tracks. The first is an in-depth assessment of quartz-in-garnet (QuiG) elastic geobarometry in the well-constrained Nelson contact aureole in which quartz experiences tension rather compression relative to the host garnet upon exhumation. The second track is an investigation of the mineral assemblages, microstructures, P-T conditions, age and exhumation of an enigmatic domain of Barrovian metamorphism southeast of Revelstoke, BC. This domain lies in the hanging wall of some major faults/shear zones in the region, especially the Columbia River fault that separates it from the underlying Monashee core complex.
Select publications
Kehler, C.M. & Pattison, D.R.M. (2024) Tensions in elastic thermobarometry: quartz-in-garnet barometry and its application to the Nelson batholith in southeastern British Columbia. Geological Association of Canada-Mineralogical Association of Canada Joint Annual Meeting, Brandon, May 20, 2024.
Kehler, C.M. & Pattison, D.R.M. (2023) Barrovian metamorphism on the eastern flank of the Monashee Complex, British Columbia: Preliminary results from mapping and petrographic analysis. Cordilleran Tectonics Workshop. Whitehorse, YT. Mar. 4, 2023.