Page 82 - Aplikasi geofizik dalam geologi kejuruteraan
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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
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