Supplemental material: Composition and provenance of the Snowcap assemblage, basement to the Yukon-Tanana terrane, northern Cordillera: Implications for Cordilleran crustal growth Stephen J. Piercey Maurice Colpron 10.1130/GES00505.S1 https://gsapubs.figshare.com/articles/journal_contribution/Supplemental_material_Composition_and_provenance_of_the_Snowcap_assemblage_basement_to_the_Yukon-Tanana_terrane_northern_Cordillera_Implications_for_Cordilleran_crustal_growth/12180468 Geosphere, October 2009, v. 5, p. 439-464, doi:10.1130/GES00505.1, Supplemental File 1 - This file contains descriptions of field relationships and thin section observations for samples analyzed in this study. Mineral concentrations are visual estimates from thin sections, normalized to 100%. Coordinates are given in Universal Transverse Mercator (UTM) projection, North American Datum 1983 (NAD83), zone 8v north. 2009-10-01 00:00:00 Geoscience