TY - RPRT TI - Hydrothermal alteration and self-sealing in Y-7 and Y-8 drill holes in northern part of upper Geyser Basin, Yellowstone National Park, Wyoming AU - Terry E.C. Keith AU - Donald Edward White AU - Melvin H. Beeson PY - 1978 DO - 10.3133/pp1054a UR - https://pubs.usgs.gov/publication/pp1054A ID - pp1054A ER -