TY - RPRT TI - The "consanguineous" origin of a tourmaline-bearing gold deposit: Passagem de Mariana (Brazil); discussion AU - A. L. M. Barbosa AU - J. H. Grossi Sad AU - John Van N. Dorr PY - 1974 DO - 10.2113/gsecongeo.69.3.416 UR - https://pubs.usgs.gov/publication/70246989 ID - 70246989 ER -