Stable isotope and fluid inclusion studies of early Zn-Cu-(Ni-Co)-rich ores, lower ore zone of Brushy Creek mine, Viburnum Trend MVT district, Missouri, U.S.A.: Products of multiple sulfur sources and metal-specific fluids

Kevin L. Shelton, B. Danielle Cavender, Laura E. Perry, James D. Schiffbauer, Martin S. Appold, I.B. Burstein, David A. Fike