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

Solongo, Saran; Tengis, Saran

doi:10.1016/j.quageo.2015.06.013

Cited by 4 publications

(4 citation statements)

References 18 publications

(28 reference statements)

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“…A plateau, measured between 180°C and 210°C, shows a rising trend towards higher preheat and stimulation temperatures. This increase in plateau is in accordance with observations made by Solongo and Tengis (2014) and Reimann and Tsukamoto (2012, 180) for young samples who proposed the use of a much lower preheat (200°C) and pIRIR stimulation (180°C) temperatures in order to reduce the residual dose of pIRIR to *1Gy in their pIRIR 180 protocol. Based on these measurements, it can be concluded that the preheat temperature below than 240°C (e.g.…”

Section: Luminescence Resultssupporting

confidence: 91%

Luminescence dating of mortar and terracotta from a Royal Tomb at Ulaankhermiin Shoroon Bumbagar, Mongolia

Solongo

Ochir

Tengis

et al. 2016

STAR: Science & Technology of Archaeological Research

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The spectacular royal tomb "Ulaankhermiin Shoroon Bumbagar" was discovered in Bulgan province, Mongolia, in 2011. Excavation of the site revealed its internal structure; a slope of 42 meters in length leading down to the underground mausoleum at a depth of 7 m below the ground. Archaeological investigations provided the site with an independent age control suggesting the construction date of the Royal tomb to the last quarter of the VII century. In this study, we directly date different materials from the site, such as terracotta figurines, mortar and host sediment, using infrared-stimulated (IR 50) and postinfrared infrared stimulated (pIRIR) luminescence techniques. The most accurate estimate of 670^70AD and 550^110AD was obtained for terracotta figurines using IR 50 and pIRIR on aliquots of 4-11 mm polymineral grains. By comparison, sand-sized quartz single grain measurements on the embedded sediment yielded normal equivalent dose (D e) distributions with a few outliers, justifying the use of the central age model (CAM) for age calculation, and yielded construction dating to the 780^140AD. Finally, sand-sized quartz single grain measurements on wall mortar revealed incomplete bleaching of grains, requiring detailed analysis using statistical approaches; from this we identified the most well bleached population age of 740^130AD, using the lowest 5%. The luminescence ages are in general agreement with the historically expected age. Statement of significance The archaeological site at Ulaankhermiin Shoroon Bumbagar, Mongolia (with an independent age control) offers a great opportunity to apply luminescence dating methods, such as pIRIR on 4-11 mm polymineral fine grains, and single grain measurements on 200-250 mm quartz grains, to various materials, such as terracotta figurines, mortar-like limestone which covered the walls and embedded sediment in order to test the accuracy of optically stimulated luminescence (OSL) dating techniques. Compared to all other datable archaeological materials, mortar has the advantage of being intentionally manufactured at each stage of construction, since it cannot be recycled. However, dating of the well bleached grains of mortar, which provided the greatest challenge in this study, was achieved using the lowest 5% estimate, yielding an age of 740^130AD. pIRIR on heated polymineral (feldspar-bearing) fine grain aliquots from terracotta figurines was tested, yielding IR 50 and pIRIR 180 dates in agreement with the CAM estimate from the host sediment.

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Section: Luminescence Resultssupporting

confidence: 91%

Luminescence dating of mortar and terracotta from a Royal Tomb at Ulaankhermiin Shoroon Bumbagar, Mongolia

Solongo

Ochir

Tengis

et al. 2016

STAR: Science & Technology of Archaeological Research

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“…The decrease in pIRIR De towards higher preheat temperature was observed; this is similar to the previous IRSL 50 measurements, however, this is in contrast to the increase in pIRIR De reported for unheated feldspar, e.g. [16], which is explained in terms of the hard-to-bleach signals [17]. The results based on pIRIR 290 are considered as erroneous due to the behavior of the pIRIR 290 signals; signals stimulated at higher temperature become harder to bleach resulting in considerable residual doses; therefore the pIRIR signal at lower stimulation has been suggested for young samples [16].…”

Section: Luminescence Resultssupporting

confidence: 89%

“…[16], which is explained in terms of the hard-to-bleach signals [17]. The results based on pIRIR 290 are considered as erroneous due to the behavior of the pIRIR 290 signals; signals stimulated at higher temperature become harder to bleach resulting in considerable residual doses; therefore the pIRIR signal at lower stimulation has been suggested for young samples [16].…”

Section: Luminescence Resultsmentioning

confidence: 99%

“…The beta dose rates determined on pulverized portion of brick directly by beta counting were compared with the calculated using NAA and the ratio was 1.19 .For polymineral fine-grains, 'α-values' of 0.10±0.02 and 0.12±0.02 were used for IR 50 and pIRIR measurements, respectively. The contribution from cosmic radiation to the dose rate was calculated following [16], assuming an uncertainty of 5%. In-situ water content measured shortly after sampling (0.22%) was taken into account.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

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

Saran¹,

Tengis²,

Batmunkh³

2017

Proc. Mong. Acad. Sci.

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Prehistoric Mongolian Archaeology in the Early 21st Century: Developments in the Steppe and Beyond

Wright

2021

J Archaeol Res

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There has been a great increase in archaeological research in Mongolia since 2000. Increasingly precise chronologies, regional studies, and the growth of development-driven archaeology are transforming our knowledge of this key region of northeastern Asia. This review summarizes recent work and provides a narrative of the prehistoric and medieval cultural sequences as presently understood. I focus on long-standing key topics: early human habitation, the adoption of food-producing economies, Bronze Age social transformations, and the emergence of central places and large polities. I argue that, on the one hand, Mongolia has unique data and new examples to offer the archaeological community and, on the other, that the prehistory of Mongolia and the steppe are not so different from the rest of the world in its history of research and key questions. This review provides general overviews covering the Upper Paleolithic, Epipaleolithic or Neolithic, and Bronze Age to the Xiongnu period; specific data related to each period provide jumping-off points for comparative analysis and further examination.

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

Cited by 4 publications

References 18 publications

Luminescence dating of mortar and terracotta from a Royal Tomb at Ulaankhermiin Shoroon Bumbagar, Mongolia

Luminescence dating of mortar and terracotta from a Royal Tomb at Ulaankhermiin Shoroon Bumbagar, Mongolia

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

Prehistoric Mongolian Archaeology in the Early 21st Century: Developments in the Steppe and Beyond

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