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

Abstract

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 D e '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 cm 2 . 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 polymineral grains from prehistoric pottery samples from the Boroo settlement, Mongolia, which are in agreement with independent age control by 14 C on charcoal material, it is argued that the manufacturing of Xiongnu -pottery at this site lasted until ca. 130±75 AD.

The feldspar pIRIR and quartz OSL on silty-clay sediments from walled ramparts in Orkhon Valley, Mongolia

“…2mm aliquots were prepared for luminescence measurements. Polymineral fine grains (4÷11µm) were extracted using the procedures outlined in (Solongo et al, 2014).…”

“…Quartz optically stimulated luminescence (OSL) has proved to be a very robust dating technique; the quartz fast component provides age estimates in good agreement with independent control in a wide range of contexts. In some cases quartz is not available or its signal suffers from a low efficiency, is contaminated by feldspar inclusions or the medium OSL component is dominant (Solongo et al, 2014). In this case feldspar is preferred: the infrared stimulated luminescence (IRSL) signals are often much brighter than the quartz OSL signal; thus it has a greater potential for the younger M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT age limit.…”

Witnessing prehistoric Delphi by luminescence dating

“…Although TL is the most appropriate technique for dating kilns and pottery, OSL is also an effective method, especially in cases of limited sample in surface dating (Aitken, 1998;Liritzis et al, 2013a;Solongo et al, 2014;Thomas et al, 2008).…”

WHAT THE BRICKS TELL US FROM A TEMPLE AT BURKHAN KHALDUN MOUNTAINS: CHRONOLOGICAL INSIGHTS FROM pIRIR LUMINESCENCE

“…No coarse grains of quartz (90-180µm) were available; therefore 2mm feldspar aliquots were prepared for luminescence measurements. Polymineral fine-grains (4-11µm) were treated with hydrogen peroxide (H2O2, 15% and 30%), hydrochloric acid (HCl, 10%), dispersal using sodium oxalate, followed by isolation via Stokes settling [12]. Single aliquot discs were prepared for fine grain measurement using a pipette with the material suspended in a water-based solution.…”