TY - RPRT TI - The analysis of forms of sulfur in ancient sediments and sedimentary rocks: comments and cautions AU - C. A. Rice AU - M. L. Tuttle AU - R. L. Reynolds PY - 1993 DO - 10.1016/0009-2541(93)90103-p UR - https://pubs.usgs.gov/publication/70017491 ID - 70017491 ER -