Supplemental Material: Testing local and extraregional sediment sources for the Late Cretaceous northern Nanaimo basin, British Columbia, using ⁴⁰Ar/³⁹Ar detrital K-feldspar thermochronology

Table S1: Descriptions of each Nanaimo Group sample. Table S2: Description of K-feldspar separation method. Table S3: ⁴⁰Ar/³⁹Ar data collection methods. Table S4: Nanaimo detrital K-feldspar ⁴⁰Ar/³⁹Ar data. Table S5: K-feldspar ⁴⁰Ar/³⁹Ar incremental-heating data from the Pacific Northwest. Table S6: Biotite and muscovite ⁴⁰Ar/³⁹Ar incremental-heating data from samples from the Pacific Northwest. Table S7: Biotite K-Ar and ⁴⁰Ar/³⁹Ar age database used to construct Figures 10, 11, and 12 for selected Cretaceous batholiths of western North America, including references. Table S8: References used to construct Figures 8, 10, 11, 12, and 13. Figure S1: ⁴⁰Ar/³⁹Ar step-heating plots for K-feldspar, biotite, and muscovite from basement samples from the Pacific Northwest.