TY - RPRT TI - Lead isotopes in iron and manganese oxide coatings and their use as an exploration guide for concealed mineralization AU - B.L. Gulson AU - S. E. Church AU - K.J. Mizon AU - A. L. Meier PY - 1992 DO - 10.1016/0883-2927(92)90067-d UR - https://pubs.usgs.gov/publication/70017115 ID - 70017115 ER -