Natural gamma logging of borehole I on Vernagtferner (Oetztal Alps, Austria)

Natural gamma logging was executed in borehole I on the Vernagtferner (Oetztal Alps, Austria) down to a depth of 60 m below surface. The radioactivity profile reflects the atmospheric injection history. Above a borehole depth of 28 m the log is enriched in bomb produced 137CS along with 4°K and elements of the uranium series. The highest gamma level, which originates from 1963 precipitation with high fallout load, is found in a depth of 18.5 m.