1987 Volume 13 Issue 5 Pages 254-259
The annealing model proposed by Modgil and Virk (1985) for inorganic solids has been tested for some micaceous minerals being used as track detectors. Annealing experiments have been carried out in the temperature range of 200–700°C, on chlorite, biotite, muscovite and phlogopite, and it has been found from the results that the annealing rate Va is fitted well by the Modgil-Virk relation, Va=At−n exp(−Ea⁄kT). Here t and T are the annealing time and temperature; the activation energy, Ea, and the values of constants n and A for these minerals have been determined. The activation energy varies from 0.63 to 0.96 eV. It has been observed that the activation energy is independent of the annealing rate.