PENNISTON-DORLAND, Sarah1, HARVEY, Kayleigh M.2, KOHN, Matthew J.3, PICCOLI, Philip M.4, WALKER, Stephanie2, STARR, Paul G.5 and BAXTER, Ethan6, (1)Department of Geology, University of Maryland College Park, 8000 Regents Drive, College Park, MD 20742, (2)Department of Earth and Environmental Sciences, Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA 02467, (3)Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725-1535, (4)Geology-Laboratory for Mineral Deposits Research, University of Maryland-College Park, College Park, MD 20742, (5)Department of Earth and Environmental Sciences, Boston College, 140 Commonwealth Ave, Chestnut Hill, MA 02467, (6)9 Grist Mill Rd, Acton, MA 01720-2007