TY - BOOK AU - Desborough, George A. AU - Yager, Douglas B. CN - I 19.76: CY - Denver, Colo. : DA - 2000. ID - 257623 KW - Igneous rocks KW - Acid mine drainage KW - Mineralogy N1 - Cover title. N1 - Shipping list no.: 2002-0155-M. PB - U.S. Dept. of the Interior, U.S. Geological Survey, PP - Denver, Colo. : PY - 2000. T1 - Acid-neutralizing potential of igneous bedrocks in the Animas River headwaters, San Juan County, Colorado TI - Acid-neutralizing potential of igneous bedrocks in the Animas River headwaters, San Juan County, Colorado VL - 00-165 ER -