TY - RPRT TI - Organic matter in hydrothermal metal ores and hydrothermal fluids AU - W. H. Orem AU - E.C. Spiker AU - R. K. Kotra PY - 1990 DO - 10.1016/0883-2927(90)90043-5 UR - https://pubs.usgs.gov/publication/70016160 ID - 70016160 ER -