TY - RPRT TI - Stable isotopes of carbon dioxide in soil gas over massive sulfide mineralization at Crandon, Wisconsin AU - Charles N. Alpers AU - D. L. Dettman AU - K.C. Lohmann AU - D. Brabec PY - 1990 DO - 10.1016/0375-6742(90)90093-p UR - https://pubs.usgs.gov/publication/70016245 ID - 70016245 ER -