Proceedings of the Mongolian Academy of Sciences, 2020
A series of architectural ceramics, including roof tiles and bricks from the excavation site at K... more A series of architectural ceramics, including roof tiles and bricks from the excavation site at Khustyn Bulag, Mungunmorit soum, Tuv aimag (province) of Mongolia were subjected to detailed archaeometric analysis. We present here results of Fourier-transform infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM-EDS) and Thermogravimetric analysis (TGA) and their potential to determine the composition of brick samples from one excavation site, and their firing temperatures. In addition, yellow ochre, which is a natural earth rock pigment that contains hydrated iron oxide and represents the most common pigment of antiquity, was revealed at this excavation site. The mineral composition of ochres will be determined and the possible use of it will be discussed.
Abstract The comparison of the luminescence results obtained on different minerals from young sil... more Abstract The comparison of the luminescence results obtained on different minerals from young silty-clay sediments associated with the walled fortification are presented. The general agreement between ages based on the quartz OSL, feldspar IRSL as well as feldspar IR50 and fine grains IR50 was obtained for well bleached samples, while feldspar pIRIR180 overestimated it. Based on age–preheat plot, where feldspar pIRIR signals using varying preheat and stimulation temperatures were investigated, the increase in De towards higher temperatures was related to an increase of residual doses. Furthermore, the fitting parameters of the IR and pIRIR decay curves were affected differently at preheats >230 °C, justifying the use of pIRIR180 for young samples. For incompletely bleached feldspar sample ML4, the presence of the residual dose (up to 12% of De) suggested there might be a link between the high residuals and the incomplete bleaching. For the first time we questioned the possibility of dating such architectural structures well presented in the Orkhon Valley, Mongolia. The study suggests that at the site “Lungijn Durvulzhin” the oldest part of the ramparts was constructed at 60 ± 100 BC (OSL), confirming human occupation and settlement activities during the Xiongnu period (200 BC–150 AD) and indicating reconstructing during 950 ± 70 AD.
Proceedings of the Mongolian Academy of Sciences, 2020
A series of architectural ceramics, including roof tiles and bricks from the excavation site at K... more A series of architectural ceramics, including roof tiles and bricks from the excavation site at Khustyn Bulag, Mungunmorit soum, Tuv aimag (province) of Mongolia were subjected to detailed archaeometric analysis. We present here results of Fourier-transform infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM-EDS) and Thermogravimetric analysis (TGA) and their potential to determine the composition of brick samples from one excavation site, and their firing temperatures. In addition, yellow ochre, which is a natural earth rock pigment that contains hydrated iron oxide and represents the most common pigment of antiquity, was revealed at this excavation site. The mineral composition of ochres will be determined and the possible use of it will be discussed.
Abstract The comparison of the luminescence results obtained on different minerals from young sil... more Abstract The comparison of the luminescence results obtained on different minerals from young silty-clay sediments associated with the walled fortification are presented. The general agreement between ages based on the quartz OSL, feldspar IRSL as well as feldspar IR50 and fine grains IR50 was obtained for well bleached samples, while feldspar pIRIR180 overestimated it. Based on age–preheat plot, where feldspar pIRIR signals using varying preheat and stimulation temperatures were investigated, the increase in De towards higher temperatures was related to an increase of residual doses. Furthermore, the fitting parameters of the IR and pIRIR decay curves were affected differently at preheats >230 °C, justifying the use of pIRIR180 for young samples. For incompletely bleached feldspar sample ML4, the presence of the residual dose (up to 12% of De) suggested there might be a link between the high residuals and the incomplete bleaching. For the first time we questioned the possibility of dating such architectural structures well presented in the Orkhon Valley, Mongolia. The study suggests that at the site “Lungijn Durvulzhin” the oldest part of the ramparts was constructed at 60 ± 100 BC (OSL), confirming human occupation and settlement activities during the Xiongnu period (200 BC–150 AD) and indicating reconstructing during 950 ± 70 AD.
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