TY - RPRT TI - Sulfur isotope geochemistry of ore and gangue minerals from the Silesian-Cracow Mississippi Valley-type ore district, Poland AU - D. L. Leach AU - J.G. Vets AU - C. A. Gent PY - 1996 UR - https://pubs.usgs.gov/publication/70018673 ID - 70018673 ER -