CLAASSEN, HANS C. HYDROLOGIC PROCESSES AND RADIONUCLIDE DISTRIBUTION IN A CAVITY AND CHIMNEY PRODUCED BY THE CANNIKI - WASHINGTON: USDI., 1978 - 28P; ILLUST - US GEOLOGICAL SURVEY PROFESSIONAL PAPER 712-D . ENG Subjects--Topical Terms: HYDROLOGY-ALASKA-AMCHITKA ISLAND.RADIOACTIVE SUBSTANCES-ALASKA-AMCHITKA ISLA.