A5071512716- Archaeology and ancient environmental studies
- Pleistocene-Era Hominins and Archaeology
- Geology and Paleoclimatology Research
- Ancient and Medieval Archaeology Studies
- Pacific and Southeast Asian Studies
- Image Processing and 3D Reconstruction
- Historical and Cultural Archaeology Studies
- Forensic Anthropology and Bioarchaeology Studies
- Ancient Mediterranean Archaeology and History
- Archaeological Research and Protection
- Historical and Archaeological Studies
- Tree-ring climate responses
- Marine and environmental studies
- Astro and Planetary Science
- Maritime and Coastal Archaeology
- Archaeological and Geological Studies
- Archaeology and Rock Art Studies
- Geomagnetism and Paleomagnetism Studies
- Hydrocarbon exploration and reservoir analysis
- Cultural Heritage Materials Analysis
- African history and culture analysis
- Archaeology and Historical Studies
- Solar and Space Plasma Dynamics
- Historical and Architectural Studies
- Archaeological and Historical Studies
Historic England
2016-2025
University of Stirling
2014-2021
University of Arizona
2004-2020
Institut de l'Information Scientifique et Technique
2004-2020
English Heritage
2007-2019
Wiltshire College
2017
Chitose Institute of Science and Technology
2017
Cambridge University Press
2017
New York University Press
2017
University of Manchester
2016
The IntCal09 and Marine09 radiocarbon calibration curves have been revised utilizing newly available updated data sets from 14 C measurements on tree rings, plant macrofossils, speleothems, corals, foraminifera. were derived the using random walk model (RWM) used to generate Marine09, which has account for additional uncertainties error structures. new ratified at 21st International Radiocarbon conference in July 2012 are as Supplemental Material www.radiocarbon.org. database can be accessed...
ABSTRACT Radiocarbon ( 14 C) ages cannot provide absolutely dated chronologies for archaeological or paleoenvironmental studies directly but must be converted to calendar age equivalents using a calibration curve compensating fluctuations in atmospheric C concentration. Although curves are constructed from independently archives, they invariably require revision as new data become available and our understanding of the Earth system improves. In this volume international both Northern...
The IntCal04 and Marine04 radiocarbon calibration curves have been updated from 12 cal kBP (cal is here defined as thousands of calibrated years before AD 1950), extended to 50 kBP, utilizing newly available data sets that meet the IntCal Working Group criteria for pristine corals other carbonates quantification uncertainty in both 14 C calendar timescales established 2002. No change was made 0–12 kBP. were constructed using a Markov chain Monte Carlo (MCMC) implementation random walk model...
A new calibration curve for the conversion of radiocarbon ages to calibrated (cal) has been constructed and internationally ratified replace IntCal98, which extended from 0–24 cal kyr BP (Before Present, 0 = AD 1950). The data set terrestrial samples extends 0–26 BP, but with much higher resolution beyond 11.4 than IntCal98. Dendrochronologically-dated tree-ring cover period 0–12.4 BP. Beyond end tree rings, marine records (corals foraminifera) are converted atmospheric equivalent a...
ABSTRACT Early researchers of radiocarbon levels in Southern Hemisphere tree rings identified a variable North-South hemispheric offset, necessitating construction separate calibration curve for the South. We present here SHCal20, revised from 0–55,000 cal BP, based upon SHCal13 and fortified by addition 14 new tree-ring data sets 2140–0, 3520–3453, 3608–3590 13,140–11,375 BP time intervals. detail statistical approaches used recommendations use Northern (IntCal20), (SHCal20) suggest where...
The importance of chronology is reasserted as a means to achieving history and sense temporality. A range current methods for estimating the dates durations archaeological processes events are considered, including visual inspection graphs tables calibrated summing probability distributions dates. These approaches found wanting. Bayesian statistical framework introduced, worked example presents simulated radiocarbon demonstration explicit, quantified, probabilistic estimates now possible on...
Sixty years ago, the advent of radiocarbon dating rewrote archaeological chronologies around world. Forty calibration signaled death knell diffusionism that had been mainstay thought for a century. Since then, revolution has continued, as extent extended ever further back and range material can be dated expanded. Now new beckons, one could allow archaeology to engage in historical debate usher an entirely kind (pre)history. This paper focuses on more than decade experience utilizing Bayesian...
High-quality data from appropriate archives are needed for the continuing improvement of radiocarbon calibration curves. We discuss here basic assumptions behind 14 C dating that necessitate and relative strengths weaknesses which obtained. also highlight procedures, problems, uncertainties involved in determining atmospheric surface ocean C/ 12 these archives, including a discussion various methods used to derive an independent absolute timescale uncertainty. The types required current...
Bayesian chronological modelling is fast becoming the method of choice for interpretation radiocarbon dates in archaeological and palaeoenvironmental studies around world. Although software enabling routine application has been available more than twenty years, half published models have appeared past five years. Unfortunately, pace development statistical methodology not matched by increased care sample selection reporting that required robust modelling. Barely applications considered this...
The social organization of the first fully sedentary societies that emerged during Neolithic period in Southwest Asia remains enigmatic,1Kuijt I. People and Space Early Agricultural Villages: Exploring Daily Lives, Community Size, Architecture Late Pre-Pottery Neolithic.J. Anthropol. Archaeol. 2000; 19: 75-102https://doi.org/10.1006/jaar.1999.0352Crossref Scopus (125) Google Scholar mainly because material culture studies provide limited insight into this issue. However, Anatolian...
Abstract The Sun sporadically produces eruptive events leading to intense fluxes of solar energetic particles (SEPs) that dramatically disrupt the near-Earth radiation environment. Such have been directly studied for last decades but little is known about occurrence and magnitude rare, extreme SEP events. Presently, a few produced measurable signals in cosmogenic radionuclides such as 14 C, 10 Be 36 Cl found. Analyzing annual C concentrations tree-rings from Switzerland, Germany, Ireland,...
Abstract The Sun drives Earth’s energy systems, influencing weather, ocean currents, and agricultural productivity. Understanding solar variability is critical, but direct observations are limited to 400 years of sunspot records. To extend this timeline, cosmic ray-produced radionuclides like 14 C in tree-rings provide invaluable insights. However, few records have the resolution or temporal span required thoroughly investigate important short-term phenomena, such as 11-year cycle,...
A recent study into prescreening techniques to identify bones suitable for radiocarbon dating from sites known poor or variable preservation (Brock et al. 2007, 2010a) found that the percent nitrogen (%N) content of whole bone powder was most reliable indicator collagen preservation. Measurement %N is rapid, requires little preparation material, and relatively cheap. The technique reduces risk needlessly sampling valuable archaeological objects, as well saving time money on their...
The great site of Valencina de la Concepción, near Seville in the lower Guadalquivir valley southwest Spain, is presented context debate about nature Copper Age society southern Iberia as a whole. Many aspects layout, use, character and development remain unclear, just there are major unresolved questions kind represented Iberia, from late fourth to third millennium cal BC. This paper discusses 178 radiocarbon dates, 17 excavated sectors within c. 450 ha site, making it best dated later...
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