1. Department of Mining Engineering, Colorado School of Mines, Golden, CO 80401, USA
2. Nevada Bureau of Mining and Geology, University of Nevada Reno, Reno, NV 89509, USA
3. Department of Geology and Geophysics, Universidad Nacional de San Agustín de Arequipa, Av. Independencia and Paucarpata Street s/n, Arequipa 04001, Peru
4. Isotope Bioscience Laboratory—ISOFYS, Department of Green Chemistry and Technology, Ghent University, Coupure Links 653, 9000 Gent, Belgium
5. Department of Geology and Geological Engineering, Colorado School of Mines, Golden, CO 80401, USA
6. Department of Civil and Environmental Engineering, Colorado School of Mines, Golden, CO 80401, USA
7. Intergubernmental Hydrological Programme, UNESCO, Montevideo 11200, Uruguay