“…The Late Triassic to Middle Jurassic (all stratigraphic and numerical ages follow the time scale of Cohen et al, 2013) tectonic evolution of the northern Canadian Cordillera was marked by waning arc magmatism, arc collision, syn-to postcollisional magmatism, and syntectonic filling of the Whitehorse trough, which overlaps Upper Triassic and older rocks of the Stikinia and Cache Creek terranes from central Yukon to northern British Columbia (Figs. 1 and 2; e.g., Mihalynuk et al, 1994;English and Johnston, 2005;Colpron et al, 2015Colpron et al, , 2022. Late Triassic to Middle Jurassic arc collision was accommodated by the enclosure of the Cache Creek terrane and resulted in crustal thickening and burial of Yukon-Tanana terrane rocks to 5-9 kbar (~16-30 km) in Yukon (e.g., Berman et al, 2007;Clark, 2017;Gaidies et al, 2021).…”