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Lithostratigraphy and Chronology of Vistulian Periglacial Deposits in Józefów (Central Poland) Based on Luminescence Dating Geochronometria (IF 1.2) Pub Date : 2024-03-14 Jacek Forysiak, Aleksandra Majecka, Piotr Moska, Leszek Marks
Sediments in Józefów were deposited in a small lake in the Eemian Interglacial and Early Vistulian (MIS 5). They were then covered by periglacial mineral sediments during the Upper Pleniglacial and the Late Vistulian (MIS 2). These sediments were deformed by gelifluction and thermokarst processes. There is no traces of deposition from MIS 4 and MIS 3. Optically stimulated luminescence (OSL) dating
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Responses to Climate Factors in the Radial Growth of Schrenk Spruce (Picea Schrenkiana) in the Yili Region, Northwest China Geochronometria (IF 1.2) Pub Date : 2024-03-14 Kexiang Liu, Tongwen Zhang, Ruibo Zhang, Li Qin, Shulong Yu, Shengxia Jiang, Yuting Fan
To examine the associations existing between elevation and tree growth, tree-ring width chronologies of Schrenk spruce (Picea schrenkiana) were developed from sampling sites at different elevations in the Wusun Mountain, Yili region, Xinjiang, northwest China. The radial growth of high-elevation trees was observed to be primarily influenced by meteorological factors in the non-growth season of the
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Morphology, Sedimentology and OSL Chronology of the Lower Prosna River System Evolution – A Case Study in Rokutów, West-Central Poland Geochronometria (IF 1.2) Pub Date : 2024-03-05 Andrzej Wojtalak, Robert J. Sokołowski, Piotr Moska
This paper presents comprehensive investigations of the morphological, sedimentological, and stratigraphic features in the lower Prosna River valley infill, situated in west-central Poland. At the Rokutów site, we identified two meander generations and an anastomosing system. Fluvial changes observed depict the response of the extraglacial river system to climate fluctuations post-last glaciation.
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Electron Spin Resonance Dating of the Quaternary Fluvial Terrace System of the Upper Han River, Central China Geochronometria (IF 1.2) Pub Date : 2024-02-29 Wenqin Dong, Song Yu, Qing Hu, Jianchao Wu, Dongning Lei, Yongjian Cai
The geomorphology of the upper Han River, which is located in the southern Qinling Mountains (central China) and within the northern subtropical monsoon climate zone, contains abundant information on tectonic and climatic changes. Many Paleolithic sites are preserved in the Quaternary terraces in this region, making it an ideal area for studying both geomorphology and ancient human activity. However
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Investigation of Trees' Sensitivity to Drought: A Case Study in the Opole Region, Poland Geochronometria (IF 1.2) Pub Date : 2024-02-18 Barbara Benisiewicz, Sławomira Pawełczyk, Francesco Niccoli, Jerzy Piotr Kabala, Giovanna Battipaglia
Pinus sylvestris L. is the most common tree species growing in Poland. Trees of this species are considered to be resistant to difficult meteorological conditions; however, in the past decades, many of them have died and been cut down by foresters. The measurements of the annual tree ring width can provide information on how trees respond to drought events. This study aimed to investigate the potential
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Chronostratigraphy of the Periglacial Loess-Paleosol Sequence in Zaprężyn, SW Poland Geochronometria (IF 1.2) Pub Date : 2024-02-18 Zdzisław Jary, Marcin Krawczyk, Piotr Moska, Natalia Piotrowska, Grzegorz Poręba, Jerzy Raczyk, Jacek Skurzyński, Michał Łopuch, Ludwig Zöller
Loess-paleosol sequences (LPS) are an exceptional source of palaeoclimate data constituting an indirect record of changing environmental and climatic conditions that prevailed during loess deposition and early diagenesis. The Zaprężyn LPS (17°11′52″E, 51°14′44″N) is situated in the southern morphological edge of the Trzebnica Hills. This sequence provides an opportunity to reconstruct past climate
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δ13C and Intrinsic Water Use Efficiency for Trees in Various Health Conditions – Case Study for Świerklaniec Forest District Forest District Geochronometria (IF 1.2) Pub Date : 2024-01-27 Barbara Benisiewicz, Sławomira Pawełczyk, Marzena Kłusek
The study included a comparative analysis of two Pinus sylvestris L. trees growing next to each other, but in a different health condition, and the reference trees growing in the same area in Poland. The declining tree, although it was a more difficult research material, was subjected to the same analyses as healthy trees, including: creating a ring width index (RWI) record, a δ13C record, an intrinsic
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The Role and Frequency of Wildfires in the Shaping of the Late Glacial Inland Dunes – A Case Study from the Korzeniew Site (Central Poland) Geochronometria (IF 1.2) Pub Date : 2024-01-24 Piotr Moska, Robert J. Sokołowski, Paweł Zieliński, Przemysław Mroczek, Natalia Piotrowska, Zdzisław Jary, Jerzy Raczyk, Agnieszka Szymak, Andrzej Wojtalak, Grzegorz Poręba, Michał Łopuch, Jacek Skurzyński, Marcin Krawczyk, Konrad Tudyka, Alicja Ustrzycka, Anna Hrynowiecka
The study examines sedimentology, stratigraphy, and the impact of wildfires on aeolian and soil processes during the Late Glacial Termination in the Korzeniew site, central Poland. The site, within a parabolic dune's central and lee-slope area, presents stacked aeolian sand units intermixed with six charcoal-enriched palaeosols. Thirteen optically stimulated luminescence (OSL) dates on quartz and six
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Age and Origin of Fluvial Deposits in the Vistula River Valley Near Tarnobrzeg (Sandomierz Basin, Poland): Insights from Sediment Dating and Analysis Geochronometria (IF 1.2) Pub Date : 2024-01-24 P. Gębica, D. Wieczorek, P. Moska, D.J. Michczyńska, W. Granoszewski
The present research aimed to determine the age and origin of a 4-m sequence of fluvial deposits located in Siedleszczany on the western side of the Tarnobrzeg Monadnock in the Vistula River valley. Initially, these deposits were thought to be sediments of the overflood (Vistulian) terrace. The study revealed that the sand deposits are relatively young Late Holocene sediments, spanning from the 8th
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Accounting for Overcounting Induced by 222Rn Contamination in 14C Measurements Performed with Liquid Scintillation Counting Geochronometria (IF 1.2) Pub Date : 2023-12-14 Maksymilian Jędrzejowski, Danuta J. Michczyńska, Adam Michczyński, Marzena Kłusek, Konrad Tudyka
This research paper introduces a methodology for estimating overcounting resulting from uranium series radionuclides, with a specific focus on 222Rn contamination. The method is demonstrated using the Quantulus 1220TM spectrometer. Exponential fitting is employed for the calculations, utilizing a custom algorithm developed in MATLAB® R2022b. The proposed method allows for the determination of the sample
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Testing the Applicability of Quartz and Feldspar for Luminescence Dating of Pleistocene Alluvial Sediments in the Tatra Mountain Foothills, Slovakia Geochronometria (IF 1.2) Pub Date : 2023-11-22 Ingrid Bejarano-Arias, Roos M. J. Van Wees, Helena Alexanderson, Juraj Janočko, Zoran M. Perić
Luminescence dating is a widely used method in combination with sedimentological analysis for reconstructing the landscape development of the Quaternary period. In this study, quartz and K-feldspar measurements were used to evaluate the luminescence characteristics with the aim of dating the deposits. The sediments were sampled from an abandoned gravel pit in the Biely Váh valley and eight sites in
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Development of Chronology for Historical Mining Shaft Remains in the Vicinity of Tarnowskie Góry Based on Radiocarbon, Luminescence and Dendrochronological Dating Geochronometria (IF 1.2) Pub Date : 2023-11-22 Fatima Pawełczyk, Agnieszka Bolik, Bartłomiej Błachut, Anna Kamińska, Magdalena Opała-Owczarek, Ireneusz Malik, Michał Wojcik, Zofia Zakrzewska, Zbigniew Pawlak, Grzegorz Poręba
This study focused on determining the age of sediments found in the remains of historical mining in the post-exploitation field in Tarnowskie Góry, Poland. The limited historical sources indicated that lead ore and silver were mined there from the 12th to 20th centuries. The research utilised radiocarbon dating, optically stimulated luminescence (OSL) and fallout radioisotopes analysis to establish
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Complex Dose Rate Calculations in Luminescence Dating of Lacustrine and Palustrine Sediments from Niederweningen, Northern Switzerland Geochronometria (IF 1.2) Pub Date : 2023-11-17 Frank Preusser, Detlev Degering, Alexander Fülling, Johannes Miocic
This study focusses on dose rate determination in complex settings in two drill cores from the site of Niederweningen, northern Switzerland. A crosscheck with a certified standard material and neutron activation analyses (NAA) reveals an overall good performance of high-resolution gamma spectrometry (HR-GS) when determining dose rate-relevant elements. A second focus is on average water content during
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Determination of Radiocarbon Content in Bio-Oil Samples by Mini Carbon Dating System in the Gliwice Radiocarbon and Mass Spectrometry Laboratory Geochronometria (IF 1.2) Pub Date : 2023-11-17 Jean Baptiste Baranyika, Natalia Piotrowska
The applications of isotopes are used by many European countries to investigate environmental changes. A compact modern accelerator mass spectrometry (AMS) system known as Mini Carbon Dating System (MICADAS) is used in Gliwice Radiocarbon and Mass Spectrometry Laboratory for determining the 14C content in different environmental samples including liquid fuels. For radiocarbon measurement using MICADAS
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Radiocarbon Dated Pulse and Cereal Crops Indicate Diachronic Use of Iron Age Extreme Upland Sites in the Western Carpathians, Slovakia Geochronometria (IF 1.2) Pub Date : 2023-06-24 Peter Barta, Mária Hajnalová, Lucia Benediková, Dagmar Dreslerová, Karol Pieta
Mountain summits in the Slovak part of the Western Carpathians bear evidence of human presence from the Late Bronze to the Late Iron Age. According to fire-induced changes in archaeological record and finds of weaponry, some of the extreme upland sites (EUS) were viewed as places of safety or refugia violently destroyed within a short period. We have focussed on three sites with summits at 1300–1550
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The Internal Dose Rate in Quartz Grains: Experimental Data and Consequences for Luminescence Dating Geochronometria (IF 1.2) Pub Date : 2022-12-10 Agnieszka Szymak, Piotr Moska, Grzegorz Poręba, Konrad Tudyka, Grzegorz Adamiec
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
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Evaluating the Effect of Hydrofluoric Acid Etching on Quartz Grains using Microscope Image Analysis, Laser Diffraction and Weight Loss Particle Size Estimate Geochronometria (IF 1.2) Pub Date : 2022-01-01 Grzegorz Poręba,Konrad Tudyka,Agnieszka Szymak,Julia Pluta,Joanna Rocznik,Jakub Świątkowski,Rafał Osadnik,Piotr Moska
Abstract 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
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Luminescence dating of Nuomuhong culture ceramics at Talitaliha site on the Northeastern Qinghai-Tibetan Plateau Geochronometria (IF 1.2) Pub Date : 2021-03-13 Manping Sun, Yongjuan Sun, Chongyi E, Guangliang Hou, Jing Zhang, Yunkun Shi
As a daily utensil and artefact, the presence of ceramic at an archaeological site is direct evidence of human activity. While ceramics have been found at numerous sites on the Qinghai-Tibetan Plateau (QTP), most have been aged using conventional methods such as typology or radiocarbon dating of associated charcoal and bone. In this study, five sand-tempered grey ceramics from Talitaliha in the Qaidam
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Post-IR IRSL chronology of paleo-lacustrine sediments from yardangs in the Qaidam Basin, ne Tibetan Plateau Geochronometria (IF 1.2) Pub Date : 2021-03-13 Zhaojing Ding, Lupeng Yu, Zhongping Lai, Ping An, Xiaodong Miao, Ruru Xu, Zengqi Liu
The Qaidam Basin preserves the largest Yardang field on Earth, and yardangs are intriguing landforms for studies of the paleo-environment and aeolian processes. Formation of yardangs involved both the initial lacustrine deposition and the subsequent wind-erosion processes. However, the timings of both processes in the Qaidam Basin are still controversial due to limited age data and unsuitable dating
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Multi-method luminescence dating of old fluvial sediments from northern Tian Shan, China Geochronometria (IF 1.2) Pub Date : 2021-03-05 Kechang Li, Jintang Qin, Jie Chen, Jun Shen, Sheng-Hua Li
At the eastern tip of Anjihai anticline on the northern piedmont of Tian Shan (northwest China), deformed fluvial deposits have recorded active folding since the Pleistocene, but the absence of accurate ages makes it difficult to evaluate the anticline’s shortening rate. Geological studies ascribed the fluvial strata to the early Pleistocene, which poses potential challenges for luminescence dating
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Increase in 14C dating accuracy of prehistoric skeletal remains by optimised bone sampling: Chronometric studies on eneolithic burials from Mikulin 9 (Poland) and Urziceni-Vada Ret (Romania) Geochronometria (IF 1.2) Pub Date : 2021-01-29 Tomasz J. Chmielewski, Agata Hałuszko, Tomasz Goslar, Olivia Cheronet, Tamás Hajdu, Tamás Szeniczey, Cristian Virag
In this research, sampling optimisation and modelling based thereon follow from the assumption that each human skeleton can be treated as a set of heterochronous carbon reservoirs capable of supplying at least an elementary sequence consisting of two 14C dates corresponding to the moment of birth (otic capsule) and that of demise (ribs), as well as an anthropologically defined lag between them. Two
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Luminescence dating of late pleistocene lacustrine deposits in Badain Jaran Desert, north China Geochronometria (IF 1.2) Pub Date : 2021-01-29 Hui Zhao, Xinfan Wang, Hongyu Yang, Keqi Wang, Jianwei Geng
There are still controversies for the lakes evolution time during late Pleistocene in arid/semiarid north China. Badain Jaran Desert (BJD) features the coexisting of modern lakes in the lowland of megadunes. Also, lots of lacustrine relics could be found distributed widely in the desert, some of them just beside the modern lakes. These lacustrine relics indicated the paleo lakes evolution and the paleo
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The bleaching of different K-feldspar pIRIR signals of source materials of lacustrine sediment – A case study from Bosten Lake Basin in arid central Asia Geochronometria (IF 1.2) Pub Date : 2021-01-29 He Yang, Guoqiang Li, Ming Jin, Haixia Zhang, Xiaoyan Wang, Christopher Oldknow, Zhong Wang, Xin Huang
The residual ages and bleaching of K-feldspar post-IR IRSL (pIRIR) signals (pIR50IR170, pIR50IR290, and pIR200IR290) for a variety of modern sediment sources to the Bosten Lake basin in the southern Tian Shan of arid central Asia were assessed to identify the most appropriate facies to sample for ascertaining well-bleached, depositional ages associated with Quaternary paleolake development. Results
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Comparison of equivalent doses obtained with various post-IR IRSL dating protocols of K-feldspar Geochronometria (IF 1.2) Pub Date : 2021-01-29 Junjie Zhang, Sheng-Hua Li, Xulong Wang, Qingzhen Hao, Guiming Hu, Yiwei Chen
Five dating protocols with post-infrared infrared (IR) stimulated luminescence signals (i.e. pIRIR) were performed on the K-feldspar of loess samples. Two of them were the single-aliquot regenerative-dose protocol (SAR) with two-step pIRIR stimulation, with the first IR stimulation at 50°C or 200°C and the second at 290°C (pIR50IR290, pIR200IR290). Two of them were the SAR protocols with five-step
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The application of full spectrum analysis to NaI(Tl) gamma spectrometry for the determination of burial dose rates Geochronometria (IF 1.2) Pub Date : 2021-01-29 Minqiang Bu, Andrew S. Murray, Myungho Kook, Jan-Pieter Buylaert, Kristina J. Thomsen
In this study, we explored the potential of a NaI(Tl) scintillator-based gamma spectrometer for the accurate determination of burial dose rates in natural geological samples using a full spectrum analysis (FSA) approach. In this method, an iterative reweighted least-square regression is used to fit calibration standard spectra (40K, and 238U and 232Th series in equilibrium) to the sample spectrum,
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Component-resolved analysis towards correlation between thermoluminescence and optically stimulated luminescence in commercial magnesium oxide Geochronometria (IF 1.2) Pub Date : 2021-01-29 Niyazi Meriç, Eren Şahiner, George Kitis, George S. Polymeris
The present study aimed at quantifying the relationship between TL and either CW-OSL or LM-OSL using commercially available magnesium oxide. The samples were bleached at two different temperatures, and a component-resolved analysis on the integrated signals was performed. According to the data of the present study, each one among the five observed LM-OSL component receives electrons from at least two
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Holocene OSL chronology of flu-lacustrine sediments in Yangtze River Basin, Wuhan area, China Geochronometria (IF 1.2) Pub Date : 2021-01-29 Chuanyi Wei, Huasong Zhang, Chang’an Li, Yufen Zhang, Yawei Li, Mingming Jia, Guoqing Li, Yonghui Leng
Wuhan area located middle Yangtze River Basin, is dominated by East Asian Monsoon. Widely developed Holocene flu-lacustrine sediments are ideal materials for the reconstruction of paleoclimate change and geo-environment evolution, for which the chronology is a key issue. In this study, 20 luminescence dating samples were collected from a flu-lacustrine sequence and the reliability of the quartz OSL
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Secular Variations of Inclination of the Geomagnetic Field in SE Poland Between 1200 and 1800 AD Geochronometria (IF 1.2) Pub Date : 2021-01-01 Jerzy Nawrocki,Karol Standzikowski,Maria Łanczont,Tomasz Werner,Jan Gancarski,Zdzisław Gil
Abstract A set of brick samples from 26 historical buildings in SE Poland was taken for archeomagnetic study. As a result of this study, the secular variations of inclination of the geomagnetic field from 1200 to 1800 AD were defined for SE Poland. The course of them is approximately the same as obtained in other parts of Europe. The only remarkable difference is a more rapid and deeper drop of inclination
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Residual Hole Concentration in Recombination Centres after Bleaching Geochronometria (IF 1.2) Pub Date : 2021-01-01 N. K. Pawlak,A. Timar-Gabor,A. Chruścińska
Abstract Trapped charge dating method using electron spin resonance (ESR) of quartz is progressively used for sediment dating. ESR signals can be used for accurate age estimation only when these signals are zeroed by sunlight exposure before the layer creation or when one knows their ESR residual level (the part of the signal that is not bleached). It is well known that the ESR signal related to the
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Chronology of the Huxushan Paleolithic Site in South China: Inferred from Multiple Luminescence Dating Techniques Geochronometria (IF 1.2) Pub Date : 2021-01-01 Hai-Cheng Lai,Yi-Yuan Li,Jia-Fu Zhang,Liping Zhou
Abstract The Huxushan archaeological site in northern Hunan Province, China, was recently excavated, from which stone tools including handaxes were unearthed. The deposits of the site are chemically weathered, which makes it difficult to date the site using numerical dating techniques except for optically stimulated luminescence (OSL) method. Here, we used various luminescence procedures including
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Electron Spin Resonance (ESR) Signal Intensity of Quartz E1′ Centre and Its Potential Use in Fluvial Sediments Provenance Tracing Geochronometria (IF 1.2) Pub Date : 2021-01-01 Chuan-Yi Wei,Chun-Ru Liu,Gong-Ming Yin,Wen-Peng Li
Abstract To assess if the heat-treated E 1′ centre in quartz is suitable for fluvial sediment provenance tracing, eight granitic samples from sediments and their source rocks with distinct geological ages and origins were collected for electron spin resonance (ESR) measurements. The results show that the maximum heat-treated E 1′ signal intensity of quartz in the fluvial sediments occurs upon heating
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ESR Chronology of Bedrock Fault Activity in Carbonate Area: Preliminary Results from the Study of the Lijiang-Xiaojinhe Fault, Southeastern Tibet, China Geochronometria (IF 1.2) Pub Date : 2021-01-01 Gongming Yin,Chunru Liu,Renmao Yuan,Fei Han,Rui Ding,Jean-Jacques Bahain
Abstract Carbonated rocks constitute one of the main lithologies of the southeastern Tibet area, China, a tectonically very active zone. However, due to the lack of suitable dating materials, it is difficult to carry out chronological studies of the local tectonic evolution in such carbonate areas. In the present study, electron spin resonance (ESR) method had been applied on the dating of carbonates
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Residual Dose of K-Feldspar post-IR Irsl of Beach-Shoreface Sands at Kujukuri, Eastern Japan Geochronometria (IF 1.2) Pub Date : 2021-01-01 Toru Tamura,Junko Komatsubara,Saiko Sugisaki,Naohisa Nishida
Abstract We assessed the residual dose of K-feldspar grains from modern and Holocene beach–shoreface sands at Kujukuri, eastern Japan. Samples from the modern foreshore and shoreface (to 34 m depth) show residual doses <0.2 Gy for infrared-stimulated luminescence (IR)50 measured during post-IR infrared-stimulated luminescence (pIRIR)50/150, equivalent to potential burial age overestimation of only
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Luminescence Characteristics of Intraplate-Derived Olivines Geochronometria (IF 1.2) Pub Date : 2021-01-01 Laine Clark-Balzan,Venera R. May,Frank Preusser
Abstract Olivine has so far attracted limited attention as a potential luminescence dosimeter. In particular, there is a dearth of information concerning the luminescence properties of geochemically characterised, pure olivine samples. Six well-characterised olivine samples from four intraplate settings are investigated in this study, including emission wavelengths and intensities, growth of signal
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Infrared Radiofluorescence (IR-RF) of K-Feldspar: An Interlaboratory Comparison Geochronometria (IF 1.2) Pub Date : 2021-01-01 Madhav K. Murari,Sebastian Kreutzer,Marine Frouin,Johannes Friedrich,Tobias Lauer,Nicole Klasen,Christoph Schmidt,Sumiko Tsukamoto,Daniel Richter,Norbert Mercier,Markus Fuchs
Abstract Infrared Radiofluorescence (IR-RF) is a relatively new method for dosimetric dating of the depositional timing of sediments. This contribution presents an interlaboratory comparison of IR-RF measurements of sedimentary feldspar from eight laboratories. A comparison of the variability of instrumental background, bleaching, saturation, and initial rise behaviour of the IR-RF signal was carried
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Luminescence Dating Procedures at the Gliwice Luminescence Dating Laboratory Geochronometria (IF 1.2) Pub Date : 2021-01-01 Piotr Moska,Andrzej Bluszcz,Grzegorz Poręba,Konrad Tudyka,Grzegorz Adamiec,Agnieszka Szymak,Aleksandra Przybyła
Abstract The Gliwice Luminescence Laboratory (GLL) is a part of the Institute of Physics – Centre for Science and Education at the Silesian University of Technology, which has gradually evolved since the 1980s. To date, nearly 3500 samples have been dated using luminescence from materials such as ceramics, bricks, and sediments from archaeological and geological sites. Currently, the laboratory is
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Flowstones from the Račiška Pečina Cave (SW Slovenia) Record 3.2-Ma-Long History Geochronometria (IF 1.2) Pub Date : 2021-01-01 P. Sierpień,J. Pawlak,H. Hercman,P. Pruner,N. Zupan Hajna,A. Mihevc,P. Bosák
Abstract Establishing a chronology of events is a critical step in reconstructing the palaeoclimate and it is important for all types of environmental records, including speleothems. Here, we analysed a unique series of flowstones deposited between 3.2 Ma (marine isotope stage (MIS) Km3) and 0.08 Ma (MIS 5). The studied flowstones are located in a classic karstic environment, the Račiška Pečina Cave
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Revision of the human’s occupations chronologies at the Senegalese and Mauritania sites by using marine reservoir ages corrections Geochronometria (IF 1.2) Pub Date : 2021-01-01 Maurice Ndeye,Demba Kebe,Matar Sene,Adama Harouna Athie
Abstract The prehistoric settlement of the west coast of the Senegalese-Mauritanian basin is established from archaeological remains and coal samples collected, sometimes in a stratigraphic context. However, the chronology issued, in the Before Present (BP) age, does not take into account the taphonomic context of the sites and the local reservoir age. Therefore, this article revisits the chronologies
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Dose Response of the E1’ Centre in Quartz Geochronometria (IF 1.2) Pub Date : 2021-01-01 Shin Toyoda,Mana Amimoto
Abstract The E1’ centre is one of the most common paramagnetic defects observed by electron spin resonance (ESR) in natural quartz, the formation of which is, however, quite complicated. The dose response to gamma ray irradiation of the E1’ centre in natural quartz was systematically investigated in the present study to find that its dose response depends on the heating conditions of the sample before
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Characteristics of Pulsed Blue and Green Light Stimulated Luminescence Signals of Quartz and Feldspars Geochronometria (IF 1.2) Pub Date : 2021-01-01 Jintang Qin,Jie Chen,Kechang Li
Abstract The post-infrared (post-IR) pulsed blue light stimulated luminescence (PBLSL) signal has been employed to determine the equivalent dose (D e ) of feldspar contaminated quartz grains, but it sometimes suffers from the interference of feldspars. Since the green light stimulated luminescence (GLSL) signal of feldspars might be more reduced by a prior IR stimulation, we compared the characteristics
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Cross-Calibration of an α-Source Used for Luminescence Dating by Applying Different Samples and Procedures Geochronometria (IF 1.2) Pub Date : 2021-01-01 György Sipos,Christoph Schmidt,Tamás Bartyik,Dávid Filyó,Gergő Magyar,Viktor Havasi,Ákos Kukovecz
Abstract In terms of fine-grain luminescence dating applications, the efficiency of α-radiation in producing luminescence is an important issue when determining environmental dose rates. Efficiency is usually assessed by measuring the ratio of luminescence intensities induced by known α and β laboratory doses. Consequently, most thermoluminescence (TL)/optically stimulated luminescence (OSL) readers
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Effect of Fracture on ESR Intensity Using a Low-Velocity Rotary Shear Apparatus Geochronometria (IF 1.2) Pub Date : 2021-01-01 Kiriha Tanaka,Jun Muto,Yasuo Yabe,Toshitaka Oka,Hiroyuki Nagahama
Abstract We sheared simulated-quartz gouges using a low-velocity rotary shear apparatus and evaluated the relationship between electron spin resonance (ESR) intensity and displacement quantitatively considering problems of contaminants. ESR intensity of E1’ centre increased while OHC and peroxy centre kept constant with the increasing displacement up to 1.4 m. Microstructural analysis showed grain
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Investigations on the Luminescence Properties of Quartz and Feldspars Extracted from Loess in the Canterbury Plains, New Zealand South Island Geochronometria (IF 1.2) Pub Date : 2021-01-01 D. Brezeanu,A. Avram,A. Micallef,S. Cinta Pinzaru,A. Timar-Gabor
Abstract The applicability of the single-aliquot regenerative-dose (SAR) protocol, by using the optically stimulated luminescence (OSL) signal of quartz as well as the post-infrared–infrared (pIRIR) signals of polymineral fine grains, namely pIRIR225 and pIRIR290, was assessed for dating loess in New Zealand South Island. OSL signals of quartz grains displayed low sensitivity. However, the application
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The Roman amphitheatre in mérida, Spain ˗Augustan or Flavian? Radiocarbon dating results on mortar carbonate Geochronometria (IF 1.2) Pub Date : 2020-12-31 Alf Lindroos, Jan Heinemeier, Åsa Ringbom, Thomas Schrøder Daugbjerg, Irka Hajdas
Abstract Four lime mortar samples from the Mérida amphitheatre in Spain were dated in 2001 and re-dated in 2019 with refined dating methods and focus on carbon dioxide that was released in late CO2 fractions when dissolved in phosphoric acid. The samples were difficult to date because they contained highly soluble, young carbonate contamination that dominated the carbon dioxide from the early stages
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Estimation of the durations of breaks in deposition – speleothem case study Geochronometria (IF 1.2) Pub Date : 2020-12-31 J. Pawlak, H. Hercman, P. Sierpień, P. Pruner, M. Gąsiorowski, A. Mihevc, N. Zupan Hajna, P. Bosák, M. Błaszczyk, B. Wach
Abstract Speleothems provide one of the most continuous terrestrial archives. However, due to changing conditions in temperature/humidity or the chemistry of percolating water, sedimentation breaks (hiatuses) and erosional events are possible and are commonly recorded in speleothems. Sedimentation breaks with durations longer than the resolution of the studied record should be considered in potential
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Radiocarbon dating of organic-rich deposits: Difficulties of paleogeographical interpretations in highlands of Russian Altai Geochronometria (IF 1.2) Pub Date : 2020-12-31 R.K. Nepop, A.R. Agatova, M.A. Bronnikova, E.P. Zazovskaya, I.YU. Ovchinnikov, P. Moska
Abstract The high mountainous southeastern part of Russian Altai is characterized by complicated sedimentation history. As a result of tectonic movements, Paleogene, Neogene, and even more old Carboniferous and Jurassic organicrich deposits had been partly uplifted and exhumed on the ridge’s slopes, where during the Pleistocene, they were affected by various exogenous processes including glaciation
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Chronostratigraphy of late glacial aeolian activity in SW Poland – A case study from the niemodlin plateau Geochronometria (IF 1.2) Pub Date : 2020-12-31 Piotr Moska, Zdzisław Jary, Robert Jan Sokołowski, Grzegorz Poręba, Jerzy Raczyk, Marcin Krawczyk, Jacek Skurzyński, Paweł Zieliński, Adam Michczyński, Konrad Tudyka, Grzegorz Adamiec, Natalia Piotrowska, Fatima Pawełczyk, Michał Łopuch, Agnieszka Szymak, Kamila Ryzner
Abstract The stratigraphy of Late Pleniglacial and Late Glacial fluvio-to-aeolian succession was investigated in two sites located at the Niemodlin Plateau, SW Poland. Lithofacial analysis was used for the reconstruction of sedimentary environments. An absolute chronology for climatic change and the resulting environmental changes were determined based on optically stimulated luminescence (OSL – nine
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14C Dating of mortar from ruins of an early medieval church hohenrätien GR, Switzerland Geochronometria (IF 1.2) Pub Date : 2020-12-31 Irka Hajdas, Mantana Maurer, Maria Belen Röttig
Abstract Numerous ruins around the world lack the radiometric dating due to the scarcity of organic carbon. Here, we present results of radiocarbon dating of mortar samples from an early Medieval church Hohenrätien GR, Switzerland, which was dated to the early 6th century, based on typology. The method of dating mortars, which is currently applied at the ETH laboratory, involves sieving the crushed
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Status of the ams graphitization system in the dendrochronological laboratory at Agh-Ust, Kraków Geochronometria (IF 1.2) Pub Date : 2020-12-31 Damian Wiktorowski, Marek Krąpiec, Andrzej Rakowski, Alexander Cherkinsky
Abstract A new system for the preparation of graphite samples for radiocarbon (14C) measurement using an accelerator mass spectrometer (AMS) has been built in the Dendrochronological Laboratory at AGH-UST, Kraków. This system consists of three independent components. The first is the equipment for mechanical and chemical sample pre-treatment. The second is the vacuum line for sample sealing and the
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A Tree-Ring chronology from allerød–yd transition from koźmin (Central Poland) Geochronometria (IF 1.2) Pub Date : 2020-12-31 Marek Krąpiec, Elżbieta Szychowska-Krąpiec, Joanna Barniak, Tomasz Goslar, Piotr Kittel, Danuta J. Michczyńska, Adam Michczyński, Natalia Piotrowska, Andrzej Rakowski, Damian Wiktorowski
Abstract Subfossil trunks of pine (Pinus sylvestris L.) from the Late Weichselian were discovered in the site Koźmin in the Koło Basin, central Poland (Dzieduszyńska et al., 2014a). Another part of organic sediments with trunks was excavated in the frame of the research project. Altogether 224 samples from Koźmin were analysed dendrochronologically; they represented generally young trees, 40 to 70
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Dendrochronological dating of St. George’s Orthodox Church in Drohobych, Ukraine Geochronometria (IF 1.2) Pub Date : 2020-12-31 Marek Krąpiec, Elżbieta Szychowska-Krąpiec, Leonid Tymoshenko, Roman Myska
Abstract St. George’s Orthodox Church in Drohobych is a wooden monument of sacral architecture, recently registered in the UNESCO World Heritage List. However, clear, unequivocal written sources about the origins of the structure are lacking. Absolute dating was attempted with the dendrochronological method, and it was carried out in a noninvasive way due to the status and value of the object. Construction
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Age of sediments on Danube terraces of the pest plain (Hungary) based on optically stimulated luminescence dating of quartz and feldspar Geochronometria (IF 1.2) Pub Date : 2020-12-31 Edit Thamó-Bozsó, Gábor Csillag, Judit Füri, Attila Nagy, Árpád Magyari
Abstract The numerical ages available for the sediments on the Danube terraces in the Pest Plain are scarce. In this study, we present quartz OSL and K feldspar post-IR IRSL290 ages for the sandy fluvial, aeolian and slope sediments collected from Danube terraces IIb, III and V. The feldspar post-IR IRSL290 ages without residual dose subtraction are older than the quartz OSL ages, except for one sample
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Chronology of seafloor massive sulfides formation within the Pobeda hydrothermal cluster (Mid-Atlantic Ridge) Geochronometria (IF 1.2) Pub Date : 2020-12-31 V. Kuznetsov, G. Cherkashov, K. Kuksa, A. Firstova, F. Maksimov, V. Bel’Tenev, L. Lazareva, S. Levchenko, N. Baranova
Abstract A geochronological and mineralogical study on the seafloor massive sulfides from the Pobeda hydrothermal cluster at the Mid-Atlantic Ridge was carried out. To improve the reliability of geochronological data, the 230Th/U ages were measured for both the bulk samples and monomineral separates. The oldest age ca. 52 kyr within Pobeda-1 and ca. 107 kyr within Pobeda–2 fields have been obtained
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Schmidt hammer exposure dating for brick masonry Geochronometria (IF 1.2) Pub Date : 2020-12-31 Laurent Debailleux
Abstract This research investigates the validity of the Schmidt hammer exposure dating (SHED) technique as a complementary means to date monuments according to the evaluation of the brick decay from masonry exposed to climatic conditions. The degree of surface weathering, I5 (%) is calculated as an indicator of the ageing effect and compared to the absolute age of the churches constructed between 1600
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Interaction between stem damage, crown vitality and growth performance of European yew in Central–East Europe Geochronometria (IF 1.2) Pub Date : 2020-12-31 Denisa Sedmáková, Milan Saniga, Ján Pittner, Jaroslav Vencurik, Robert Sedmák
Abstract As long-lived, slow-growing tree species, European yew (Taxus baccata L.) has considerable potential for dendrochronological use. The increasing probability of decline and the worsening of yew health status endanger the species diversity of temperate forests. In 2015–2017, we sampled adult yew populations with scattered occurrence in limestone beech forests (Fagetum dealpinum), in which yew
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Establishing a common standardised growth curve for single-aliquot OSL dating of quartz from sediments in the Jilantai area of North China Geochronometria (IF 1.2) Pub Date : 2020-12-31 Zhenjun Li, Xuesong Mou, Yuxin Fan, Qingsong Zhang, Guangliang Yang, Hui Zhao
Abstract Establishing a common standardised growth curve (SGC) can substantially reduce the instrumental time for equivalent-dose (De) measurements in optically stimulated luminescence (OSL) dating. Several studies have indicated that different samples have different dose–response curves (DRCs) and therefore that it is difficult to construct a common SGC, although an SGC has been proposed in some cases
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A new quartz for 𝛾 -transfer calibration of radiation sources Geochronometria (IF 1.2) Pub Date : 2020-12-31 D. Richter, C. Woda, K. Dornich
Abstract Quartz grains extracted from aeolian sand (LexCal2014) are tested for suitability as transfer material for radiation source calibration. After thermal pre-treatment, this quartz exhibits luminescence and dose-response properties which appear appropriate for transfer calibration purposes with little dependence of recovered β-dose on preheat temperature in the single aliquot (SAR) procedure
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Luminescence chronology of the Yellow River terraces in the Heiyukou area, China, and its implication for the uplift rate of the Ordos Plateau Geochronometria (IF 1.2) Pub Date : 2020-07-31 Yan-Yan Yan, Jia-Fu Zhang, Gang Hu, Li-Ping Zhou
The precise chronology of the fluvial terraces of the Yellow River in China is essential to understand its geomorphological evolution history. More terrace ages are needed for the correlation of the terraces along the river and the construction of the longitudinal profile. In this study, seven terraces (T1–T7) in the Heiyukou area of the Jinshaan Canyon of the river were identified and were sampled
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Luminescence dating of lacustrine sediments from CUOE Lake on the central Tibetan Plateau Geochronometria (IF 1.2) Pub Date : 2020-07-22 Yandong Hou, Hao Long, Lei Gao, Ji Shen
Luminescence dating technology has been used for chronological constraints on lacustrine sediments due to the ubiquitous materials (e.g., quartz and feldspar) as dosimeters, and a relatively long dating range, compared with the commonly used radiocarbon dating method. However, quartz dating on the Tibetan Plateau may suffer from dim and unstable luminescence signals. In the current study, we investigate
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Timing of Holocene lake highstand in Jinchang paleolake from the northeast Tibetan Plateau foreland Geochronometria (IF 1.2) Pub Date : 2020-07-22 Hao Long, Hongyi Cheng, Linhai Yang, Lei Gao, Qian Liu
Lake shoreline beach ridges and their sediments have often been investigated as paleoenvironmental indicators in arid northern China. Robust chronology is crucial to utilize this archive for paleoenvironmental reconstruction and interpretation. In this study, we reported a robust chronology for the highest wave-built beach ridge around Jinchang paleolake at the northeast (NE) margin of the Tibetan