TY - RPRT TI - Crystalline gold in soil and the problem of supergene nugget formation: Freezing and exclusion as genetic mechanisms AU - J.R. Watterson PY - 1985 DO - 10.1016/0301-9268(85)90085-3 UR - https://pubs.usgs.gov/publication/70012691 ID - 70012691 ER -