TY - RPRT TI - A proposed mechanism for the formation of spherical vivianite crystal aggregates in sediments AU - J.L. Zelibor AU - F. E. Senftle AU - J.L. Reinhardt PY - 1988 DO - 10.1016/0037-0738(88)90103-0 UR - https://pubs.usgs.gov/publication/70013763 ID - 70013763 ER -