OSL and TL characteristics of fine grain quartz from Mongolian prehistoric pottery used for dating

Saran Solongo 1 , 2 , Daniel Richter 2 , Tuguldur Begzjav 1 ,  and Jean-Jacques Hublin 2
  • 1 Institute of Physics and Technology, Mongolian Academy of Sciences, Enkhtaivnii urgun chuluu 54b, 13330, Ulaanbaatar, Mongolia
  • 2 Department of Human Evolution, Max-Planck-Institute for Evolutionary Anthropology, Deutscher Platz 6, Leipzig, Germany

Abstract

The OSL, post-IR OSL and pulsed post-IR OSL applied to polymineral grains and calculated by fitting to the data the contributions from fast, medium and slow components revealed that the polymineral samples under study are dominated by the medium component. An increase in De’s with increasing integration intervals was observed, which is considered as an indication of increasing medium and decayed fast component; and the equivalent doses obtained using different components or minerals reflect also the shape of the dose distributions. The identified fast component in polymineral sample has photoionization cross section of 1.2±0.02 × 10−17 cm2. The present study shows the usefulness of the application of different luminescence techniques combined with fitting procedures as a check which should be adopted in dating protocols. Based on luminescence ages obtained on poly-mineral grains from prehistoric pottery samples from the Boroo settlement, Mongolia, which are in agreement with independent age control by 14C on charcoal material, it is argued that the manufacturing of Xiongnu — pottery at this site lasted until ca. 130±75 AD.

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