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Natural Exposure
Airborne radioactivity map of the Virden - Computed from K (%), eU (ppm), eTh (ppm)
area, Manitoba, showing variations in the
total radioactivity (Exposure Rate) that concentrations
correspond to different soil types. Note the
higher radioactivity in the northwest Exposure = 1.505 K + 0.625 eU + 2.59 eTh
corner suggesting additional clay deposits
in this area. (uR/h)
JABATAN MINERAL & GEOSAINS MALAYSIA