Supplemental Material: Geochemical transition from Miocene–Pliocene to Quaternary arc volcanism in the northern Sierra Nevada, California

Supplemental File S1: Map showing locations of previous K-Ar and 40Ar/39Ar age determinations on volcanic rocks; Supplemental File S2: Sagehen Volcanic Center Rock unit descriptions (Fig. 3 map units); Supplemental File S3: 40Ar/39Ar ages, Sagehen Field Station Area, with plateau and isochron diagrams; Supplemental File S4: Analytical techniques at Washington State University and University of Kansas Radiogenic Isotope Laboratory analytical procedures; Supplemental File S5: All samples; Supplemental File S6: Major, trace element, and radiogenic isotope data for Mesozoic Sierra Nevada granitoids of the North Sierra segment; and Supplemental File S7: Estimates of analytical precision from repeat analyses of internal and international rock standards.