Luminescence Dating Procedures at the Gliwice Luminescence Dating Laboratory

Moska, Piotr; Bluszcz, Andrzej; Poręba, Grzegorz; Tudyka, Konrad; Adamiec, Grzegorz; Szymak, Agnieszka; Przybyła, Aleksandra

doi:10.2478/geochr-2021-0001

Cited by 37 publications

(23 citation statements)

References 56 publications

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“…Forty-two samples were selected from several different dating projects carried out at the Gliwice Luminescence Dating Laboratory (Moska et al, 2021). Most of the analysed samples were dune sediments, with a low concentration of natural radionuclides.…”

Section: Methodsmentioning

confidence: 99%

The Internal Dose Rate in Quartz Grains: Experimental Data and Consequences for Luminescence Dating

et al. 2022

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This work considers the impact of the internal alpha and beta dose rates in quartz grains obtained from sandy sediments on the results of luminescence dating. The internal dose rates reported here (ca. 0.01–0.21 Gy · ka−1) play a particularly important role, because of low (ca. 0.8–0.9 Gy · ka−1) or very low (ca. 0.4–0.6 Gy · ka−1) external dose rates. In these cases, the internal dose rates form a significant fraction of the total dose rates, often exceeding 10%. Ignoring this contribution would have made the considered luminescence ages artificially older. In our study, we measure both the internal alpha and beta contributions as the latter is usually neglected in the case of quartz. The dose rate measurements were performed using the innovative μDose system.

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Section: Methodsmentioning

confidence: 99%

The Internal Dose Rate in Quartz Grains: Experimental Data and Consequences for Luminescence Dating

et al. 2022

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“…89.8 ka BP and c . 70.4–77.5 ka BP for the two lowest archaeological horizons, respectively (Figures 4 & 5; for OSL dating methods, see Moska et al 2021). Whether the artefacts found within the uppermost horizons are of late MIS 3 and MIS 2 age, or result from post-depositional movement of the earlier horizons, has yet to be determined.…”

Section: The Kuksaray 2 Palaeolithic Sitementioning

confidence: 97%

New evidence for mountain Palaeolithic human occupation in the western Tian Shan piedmonts, eastern Uzbekistan

et al. 2022

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This article presents preliminary results from mountain survey in the Chatkal Range in the western Tian Shan piedmonts, eastern Uzbekistan. In 2021, several new Palaeolithic sites were discovered, including a single, multi-layered, open-air site—Kuksaray 2—located near a flint outcrop. The authors’ initial investigations have recovered a stone tool assemblage containing tools displaying both Middle Palaeolithic and Initial Upper Palaeolithic characteristics.

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“…To prepare quartz for TCD, the grains were routinely immersed in 40% HF acid for 45-60 min, depending on the grain size of the material (Fuchs and Lomax, 2019;Bartyik et al, 2021;Moska et al, 2021). The aim of this exercise was to remove ca.…”

Section: Quartz Etchingmentioning

confidence: 99%

Evaluating the Effect of Hydrofluoric Acid Etching on Quartz Grains using Microscope Image Analysis, Laser Diffraction and Weight Loss Particle Size Estimate

et al. 2022

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In this work we investigate the quartz etching process using hydrofluoric acid for trapped charge dating (TCD) applications. It is done using material collected from an active sand mine in Bełchatów Nowy Świat, central Poland. Approximately 20 kg of material was collected and prepared using routine procedures that are applied in TCD laboratories. The material was sieved using 180–200 μm meshes, and the selected fraction was etched for various time intervals. Sieved samples were etched for durations from 0 min up to 180 min and measured with microscope image analysis (IA), laser diffraction (LD), and mass loss which were used to estimate the depths of etching. Our results show statistical data on how non-uniform the etching process is. We estimate this as a function of etching time from IA, LD and mass loss. In our investigation, mass loss measurements with the assumption of spherical grains correspond to the decrease of radius of ca. 0.151 ± 0.003 μm · min−1. In case of LD, a rough etch depth estimation corresponds to a range 0.06–0.18 μm · min−1 with median at 0.13 μm · min−1. Microscope IA gives a 0.03–0.09 μm · min−1 with a median at 0.05 μm · min−1. Moreover, quartz grains are fractured into smaller pieces while etching. It means that assumptions that are used in etch depth estimation from mass loss are not correct. They incorrect not only because grains are not spheres but also because the number of grains is not constant. Therefore, the etch depth estimated from mass loss might be overestimated. Using microscope IA we report etch depth ranges that might be used to roughly estimate the etch depth uncertainty.

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Luminescence Dating Procedures at the Gliwice Luminescence Dating Laboratory

Cited by 37 publications

References 56 publications

The Internal Dose Rate in Quartz Grains: Experimental Data and Consequences for Luminescence Dating

The Internal Dose Rate in Quartz Grains: Experimental Data and Consequences for Luminescence Dating

New evidence for mountain Palaeolithic human occupation in the western Tian Shan piedmonts, eastern Uzbekistan

Evaluating the Effect of Hydrofluoric Acid Etching on Quartz Grains using Microscope Image Analysis, Laser Diffraction and Weight Loss Particle Size Estimate

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