A new mathematical approximation of sunlight attenuation in rocks for surface luminescence dating

► Study of aattenuation of sunlight through different rock surfaces. ► Study of the thermoluminescence (TL) or Optical stimulated luminescence (OSL) residuals as a function of depth. ► A Cumulative Log-Normal Distribution fitting provides the most satisfactory modeling for marbles, marble schists and granites. ► The new model (Cummulative Log-Norm Fitting) is applied on available data and age determination tests.