FIELD: chemistry; archeology.
SUBSTANCE: invention relates to a method of absolute dating archaeological materials using a thermoluminescent method. Method of absolute dating archaeological materials involves grinding material sample, measurement of natural thermoluminesence of sample, laboratory irradiation of sample, measurement of the thermoluminesence of irradiated sample, measurement of dose absorbed by natural and laboratory radiation using thermoluminescent detectors, grinding of sample is performed to particle sizes not larger than 0.4 mm, on thermoluminesence curves of non-irradiated and irradiated samples extracting medium-temperature (220-270 °C) and high-temperature peaks (280-350 °C), and age of archaeological material is determined by formula where D is absorbed dose of laboratory irradiation, Gy; Sneobl. 1 - average light sum of medium-temperature peak (220-270 °C) of non-irradiated sample, relative units; Sobl. 1 is average light sum of medium-temperature peak (220-270 °C) of irradiated sample, relative units; Sneobl. 2 is average light sum of high-temperature peak (280-350 °C) of non-irradiated sample, relative units; Sobl. 2 is average light sum of high-temperature peak (280-350 °C) of irradiated sample, relative units; P is absorbed dose rate of natural radiation at point of excavation, Gy/year.
EFFECT: technical result is wider range of dating archaeological materials.
1 cl, 6 tbl, 2 dwg
Authors
Dates
2016-06-10—Published
2015-04-06—Filed