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RECONSTRUCTING THE CHRONOLOGY OF BUILDING THE SOUTHWEST CHURCH OF UMM EL-JIMAL, JORDAN BY AMS RADIOCARBON DATING OF MORTAR AND PLASTER 通过对砂浆和灰泥的 ams 放射性碳年代测定，重建约旦乌姆-吉玛尔西南教堂的建造年代学

IF 8.3 3区地球科学

Radiocarbon Pub Date : 2024-02-27 DOI: 10.1017/rdc.2024.11

Khaled Al-Bashaireh

{"title":"RECONSTRUCTING THE CHRONOLOGY OF BUILDING THE SOUTHWEST CHURCH OF UMM EL-JIMAL, JORDAN BY AMS RADIOCARBON DATING OF MORTAR AND PLASTER","authors":"Khaled Al-Bashaireh","doi":"10.1017/rdc.2024.11","DOIUrl":"https://doi.org/10.1017/rdc.2024.11","url":null,"abstract":"The research aims to reconstruct the chronology of building the Southwest Church, Umm el-Jimal, Jordan by AMS radiocarbon dating organic inclusions uncovered from the mortars collected from the floor of the church, seat of the apse and the base of the north wall. It sheds light on the major aspects of mortar recipes at the time of their production. Samples were examined macroscopically with magnifying lenses and characterized using archaeometric techniques of optical microscopy and X-ray diffraction. The radiocarbon dates showed that 594–643 AD is the most probable age for flooring and plastering the church and 995–1154 AD is the earliest possible date for its final collapse. The preparatory layers of the church floor were laid on an older one, probably of a yard, and its north wall was raised on an older base, both most probably date to the late fifth–early sixth century AD. The production recipe of the mortars is made from a lime binder and inclusions mainly of organic (charcoal) and inorganic (quartz, grog, volcanics). The mortars have the same recipe regardless their bedding and jointing functions which remained unchanged during the building stages of church complex.","PeriodicalId":21020,"journal":{"name":"Radiocarbon","volume":"79 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140007651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MERIDIONAL MIGRATIONS OF THE INTERTROPICAL CONVERGENCE ZONE DURING THE LAST DEGLACIATION IN THE TIMOR SEA DETECTED BY EXTENSIVE RADIOCARBON DATING 通过大范围放射性碳年代测定发现的帝汶海最后一次脱冰期热带辐合带的经向迁移

IF 8.3 3区地球科学

Radiocarbon Pub Date : 2024-02-27 DOI: 10.1017/rdc.2024.13

Karin Nemoto, Yusuke Yokoyama, Satoshi Horiike, Stephen P Obrochta, Yosuke Miyairi

{"title":"MERIDIONAL MIGRATIONS OF THE INTERTROPICAL CONVERGENCE ZONE DURING THE LAST DEGLACIATION IN THE TIMOR SEA DETECTED BY EXTENSIVE RADIOCARBON DATING","authors":"Karin Nemoto, Yusuke Yokoyama, Satoshi Horiike, Stephen P Obrochta, Yosuke Miyairi","doi":"10.1017/rdc.2024.13","DOIUrl":"https://doi.org/10.1017/rdc.2024.13","url":null,"abstract":"At the Intertropical Convergence Zone (ITCZ), the northern and southern Tradewinds converge, and this region is characterized by low atmospheric pressure and high precipitation. The climate in the Timor Sea is characterized by seasonal precipitation changes driven by meridional migrations of the ITCZ and the monsoonal front. The ITCZ shifts in response to changes in the thermal balance between the northern and southern hemispheres. Thus, reconstruction of paleo-precipitation in the Timor Sea is expected to reveal past changes in both regional and global climate, the latter through inference of the ITCZ position. To reconstruct paleo-precipitation in the Timor Sea, we performed extensive radiocarbon analysis on both planktonic foraminifera and total organic carbon (TOC), which is derived from terrestrial and marine sources. Increased precipitation enhances the fraction of relatively old, terrestrial carbon to the core site, which in turn increases the difference between the ages of TOC and planktonic foraminifera. Variations in radiocarbon ages reveal that during northern hemisphere cooling intervals such as Heinrich Stadial 1 and the Younger Dryas, the ITCZ was in a southern position, thus increasing precipitation in the Timor Sea. However, the Timor Sea was dryer during the Bølling–Allerød warming as the ITCZ shifted northward.","PeriodicalId":21020,"journal":{"name":"Radiocarbon","volume":"74 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140007601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

HISTORIC LIME MORTARS COMPOSITION AND TERMINOLOGY FOR RADIOCARBON DATING—CASE STUDIES BASED ON THIN-SECTION PETROGRAPHY AND CATHODOLUMINESCENCE 用于放射性碳年代测定的历史石灰砂浆成分和术语--基于薄片岩相和阴极射线的案例研究

IF 8.3 3区地球科学

Radiocarbon Pub Date : 2024-02-27 DOI: 10.1017/rdc.2024.14

Marine Wojcieszak, Laurent Fontaine, Jan Elsen, Roald Hayen, Alexander Lehouck, Mathieu Boudin

{"title":"HISTORIC LIME MORTARS COMPOSITION AND TERMINOLOGY FOR RADIOCARBON DATING—CASE STUDIES BASED ON THIN-SECTION PETROGRAPHY AND CATHODOLUMINESCENCE","authors":"Marine Wojcieszak, Laurent Fontaine, Jan Elsen, Roald Hayen, Alexander Lehouck, Mathieu Boudin","doi":"10.1017/rdc.2024.14","DOIUrl":"https://doi.org/10.1017/rdc.2024.14","url":null,"abstract":"Since the first developments of anthropogenic lime materials radiocarbon (14C) dating in the 1960s, numerous studies have been undertaken and developed to investigate the topic further. Historic mortars are complex composite and open system materials that can incorporate a large range of components. Due to the complexity of the historic lime mortars composition, they are not part of a routine protocol in most radiocarbon laboratories and reliable dating is not always achieved. A thorough characterization needs to be performed and different preparation methods can be considered as a function of their compositions. A vast range of terms are employed to qualify the lime mortars components and alterations that can possibly have an influence on the dating result. Here, a detailed description of these components and the various terms used is listed. To illustrate this, images obtained by thin-section petrography and cathodoluminescence are presented in addition to radiocarbon results using stepwise acid hydrolysis on Belgian mortars having different provenance, state, age and composition. Depending on the type of aggregate used, the type of binder and its conservation state, the eventual presence of weathering carbonates and the assumed speed of the carbonation process, the reliability of radiocarbon measurements using the stepwise acid hydrolysis technique is discussed and confronted with presumed historical constraints.","PeriodicalId":21020,"journal":{"name":"Radiocarbon","volume":"1 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140007645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

EVALUATING THE TIMING OF EARLY VILLAGE DEVELOPMENT IN NEW YORK: MORE DATES FROM CLASSIC NEW YORK SITES 评估纽约早期村庄发展的时间：更多纽约经典遗址的年代数据

IF 8.3 3区地球科学

Radiocarbon Pub Date : 2024-02-27 DOI: 10.1017/rdc.2024.10

Jennifer Birch, Sturt W Manning, John P Hart, Brita Lorentzen

引用次数: 0

COMPARATIVE FEATURES OF BINP AMS AND MICADAS FACILITIES WORKING AT AMS GOLDEN VALLEY, RUSSIA 在俄罗斯金谷国际机场工作的 binp ams 和 micadas 设施的比较特点

IF 8.3 3区地球科学

Radiocarbon Pub Date : 2024-02-27 DOI: 10.1017/rdc.2024.4

A V Petrozhitskiy, E V Parkhomchuk, M M Ignatov, D V Kuleshov, L A Kutnyakova, E S Konstantinov, V V Parkhomchuk

{"title":"COMPARATIVE FEATURES OF BINP AMS AND MICADAS FACILITIES WORKING AT AMS GOLDEN VALLEY, RUSSIA","authors":"A V Petrozhitskiy, E V Parkhomchuk, M M Ignatov, D V Kuleshov, L A Kutnyakova, E S Konstantinov, V V Parkhomchuk","doi":"10.1017/rdc.2024.4","DOIUrl":"https://doi.org/10.1017/rdc.2024.4","url":null,"abstract":"The AMS Golden Valley radiocarbon analysis laboratory is equipped with two accelerator mass spectrometers: AMS facility from Budker Institute of Nuclear Physics (BINP AMS) and MIni CArbon DAting System (MICADAS-28) from Ionplus AG and two graphitization systems: Automated Graphitization Equipment (AGE-3) from Ionplus AG and Absorption-catalytic setup developed in Boreskov Institute of Catalysis (ACS BIC). The laboratory provides routine 14C analyses of various samples: collagen, cellulose, humic acids, carbonates from sediments, etc. The main focus of the laboratory is to determine the age of archaeological artifacts by radiocarbon dating. This work presents a comprehensive description of the BINP AMS facility, with its operation compared with that of MICADAS in the same laboratory. In 2022, the AMS Golden Valley laboratory participated for the first time in the Glasgow International Radiocarbon Inter-comparison (GIRI). The samples were graphitized on the AGE-3 and subsequently measured in both AMS facilities. A comparison of the results of the two series of experiments, namely AGE-3 + MICADAS-28 and AGE-3 + BINP AMS, is given.","PeriodicalId":21020,"journal":{"name":"Radiocarbon","volume":"44 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140007644","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

14C MEASUREMENT OF SAMPLES FOR ENVIRONMENTAL SCIENCE APPLICATIONS AT THE NATIONAL ENVIRONMENTAL ISOTOPE FACILITY (NEIF) RADIOCARBON LABORATORY, SUERC, UK 14c 在英国苏黎世国家环境同位素设施（NEIF）放射性碳实验室测量环境科学应用样品

IF 8.3 3区地球科学

Radiocarbon Pub Date : 2024-02-14 DOI: 10.1017/rdc.2024.9

P Ascough, N Bompard, M H Garnett, P Gulliver, C Murray, J-A Newton, C Taylor

{"title":"14C MEASUREMENT OF SAMPLES FOR ENVIRONMENTAL SCIENCE APPLICATIONS AT THE NATIONAL ENVIRONMENTAL ISOTOPE FACILITY (NEIF) RADIOCARBON LABORATORY, SUERC, UK","authors":"P Ascough, N Bompard, M H Garnett, P Gulliver, C Murray, J-A Newton, C Taylor","doi":"10.1017/rdc.2024.9","DOIUrl":"https://doi.org/10.1017/rdc.2024.9","url":null,"abstract":"The National Environmental Isotope Facility (NEIF) Radiocarbon Laboratory at the Scottish Universities Environmental Research Centre (SUERC) performs radiocarbon measurement of a wide range of sample matrices for applications in environmental research. Radiocarbon is applied to palaeoenvironmental, palaeoceanographic, and palaeoclimatic investigations, as well as work to understand the source, fate, turnover, and age of carbon in the modern carbon cycle. The NEIF Radiocarbon Laboratory supports users in the development and deployment of novel sampling techniques and laboratory approaches. Here, we give an overview of methods and procedures used by the laboratory to support the field collection, laboratory processing, and measurement of samples. This includes in-house development of novel and/or specialized methods and approaches, such as field collection of CO2 and CH4, hydropyrolysis, and ramped oxidation. The sample types covered include organic remains (e.g., plant material, peat, wood, charcoal, proteins), carbonates (e.g., speleothems, foraminifera, mollusc shell, travertine), waters (dissolved organic and inorganic carbon), gases (CO2 and CH4), soils and sediments (including sub-fractions).","PeriodicalId":21020,"journal":{"name":"Radiocarbon","volume":"87 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139754322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CARBON ISOTOPE CHANGES THROUGH THE RECENT PAST: F14C AND δ13C VALUES IN SINGLE BARLEY GRAIN FROM 1852 TO 2020 近代以来的碳同位素变化：1852 年至 2020 年单粒大麦的 F14C 和 δ13C 值

IF 8.3 3区地球科学

Radiocarbon Pub Date : 2024-02-14 DOI: 10.1017/rdc.2024.8

E Dunbar, E M Scott, B G Tripney

{"title":"CARBON ISOTOPE CHANGES THROUGH THE RECENT PAST: F14C AND δ13C VALUES IN SINGLE BARLEY GRAIN FROM 1852 TO 2020","authors":"E Dunbar, E M Scott, B G Tripney","doi":"10.1017/rdc.2024.8","DOIUrl":"https://doi.org/10.1017/rdc.2024.8","url":null,"abstract":"Radiocarbon (F14C) and stable carbon (δ13C) values were measured in single grains of spring barley (Hordeum vulgare L.) from the sample archive from two adjacent sites of the Long-term Experiments (LTEs) Hoosfield Spring Barley at Rothamsted Research (Harpenden, Hertfordshire, UK), covering the growing periods (March to September) of 1852 to 2020. F14C data of the barley grain confirm that recent values are approaching and will decline below the “nominal” F14C value of 1, tracking a similar decrease reported in other studies. Importantly, the measured δ13C values reveal a different temporal decline over the pre-bomb and post-bomb timescale. Detailed statistical analysis of δ13C data along with δ13C analysis of independent, archived barley mash samples, verifies and quantifies the extent and rate of this decline. Evidence presented from the barley grain and barley mash samples suggests a clear breakpoint in δ13C data occurring in 1995, where the rate of change alters, in that the slope in δ13C data for the pre-1995 period is declining at 1.4‰ per century, and the slope in δ13C for the post-1995 period is declining at 3.6‰ per century. Such a consistent shift in δ13C data could be used with F14C values to extend the use of the bomb peak for forensic, ecological, and environmental applications.","PeriodicalId":21020,"journal":{"name":"Radiocarbon","volume":"81 3 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139754422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SPATIOTEMPORAL PATTERNS ON THE APPEARANCE OF THE FIRST TRAPEZE INDUSTRIES IN THE LATE MESOLITHIC OF THE IBERIAN PENINSULA 伊比利亚半岛中石器时代晚期出现第一批梯形工业的时空模式

IF 8.3 3区地球科学

Radiocarbon Pub Date : 2024-02-14 DOI: 10.1017/rdc.2024.6

Magdalena Gómez-Puche, Javier Fernández-López de Pablo

{"title":"SPATIOTEMPORAL PATTERNS ON THE APPEARANCE OF THE FIRST TRAPEZE INDUSTRIES IN THE LATE MESOLITHIC OF THE IBERIAN PENINSULA","authors":"Magdalena Gómez-Puche, Javier Fernández-López de Pablo","doi":"10.1017/rdc.2024.6","DOIUrl":"https://doi.org/10.1017/rdc.2024.6","url":null,"abstract":"The spread of trapeze industries (the creation of trapeze-shaped flint tips) during Late Mesolithic is one of the most disruptive phenomena of technological change documented in the European Prehistory. Understanding the chronological patterns of this process requires (i) a critical evaluation of stratigraphic relationship between trapeze assemblages and radiocarbon samples, and (ii) considering different levels of chronological uncertainty according to the inbuilt age of the samples and the calibration process. In this paper, we critically evaluate and analyze the radiocarbon record of the first trapeze industries in the Iberian Peninsula. A dataset of 181 radiocarbon dates from 67 sites dated to 8800–8200 cal BP was collected and evaluated following a strict data quality control protocol, from which 135 dates of 53 sites were retained and classified according to a reliability index. Then, three different phase Bayesian chronological models were created to estimate the duration of the first spread of trapezes across Iberia, considering different levels of chrono-stratigraphic resolution. We find that trapeze industries appeared in the eastern half of Iberia, over an area of 330,000 km2 between 8505–8390 and 8425–8338 cal BP, spanning 0–85 yr (95.4% CI). When the oldest evidence of trapezes from Portugal are considered, the probability distribution expands (8943–8457 and 8686–7688 cal BP), due to the chronological uncertainty of human samples with marine diet and regional ΔR values applied. For the eastern half of Iberia, the current evidence indicates a very rapid spread of trapeze industries initiated in the Central-Western Pyrenees, suggesting cultural diffusion within Mesolithic social networks as the main driving mechanism.","PeriodicalId":21020,"journal":{"name":"Radiocarbon","volume":"8 1","pages":""},"PeriodicalIF":8.3,"publicationDate":"2024-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139754484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

SAMPLE SELECTION, CHARACTERIZATION AND CHOICE OF TREATMENT FOR ACCURATE RADIOCARBON ANALYSIS—INSIGHTS FROM THE ETH LABORATORY 为进行准确的放射性碳分析而进行的样品选择、特征描述和处理方法选择--Eth 实验室的见解

IF 8.3 3区地球科学

Radiocarbon Pub Date : 2024-02-14 DOI: 10.1017/rdc.2024.12

Irka Hajdas, Giulia Guidobaldi, Negar Haghipour, Karin Wyss

引用次数: 0

14C DATING OF HISTORICAL JAPANESE MUSICAL INSTRUMENT SACKS 日本历史乐器袋的 14 世纪年代测定

IF 8.3 3区地球科学

Radiocarbon Pub Date : 2024-02-13 DOI: 10.1017/rdc.2023.114

Misao Yokoyama, Minoru Sakamoto, Hikaru Takaya, Kazuyoshi Kanamori

引用次数: 0