TY - RPRT TI - Mineralogy and chemistry of hydrothermal chimneys from the northern Cleft Segment, Juan de Fuca Ridge AU - Walter B. Friesen AU - Randolph A. Koski PY - 1995 DO - 10.3133/ofr95505 UR - https://pubs.usgs.gov/publication/ofr95505 ID - ofr95505 ER -