Supplemental Material: Ancient roots of tungsten in western North America

Appendix S1 (detailed geology of Cantung and Mactung, Canada); Appendix S2 (materials) Appendix S3 (methods); Appendix S4 (supplemental Figure S1 and details for data presented in figures); Dataset S1 (data presented in Figure 3 and Figure S1); and Dataset S2 (data presented in Figure 4).