News

Publication date: Available online 29 October 2017Source:Journal of Archaeological Science Author(s): Alice V.M. Samson, Lucy J. Wrapson, Caroline R. Cartwright, Diana Sahy, Rebecca J. Stacey, Jago CooperThis study represents the first positive identification of plant gum binding media in pre-Columbian art, and the first dates from indigenous cave art in the Caribbean. Mona Island reveals an extensive and well-preserved pre-Columbian and early colonial subterranean cultural landscape with dense concentrations of newly-discovered cave art in up to 30 caves. A multi-method approach to the research of pigments and binding media, charcoal, and cave sediments was used to elucidate the technologies, chronologies and processes of indigenous art and artists. Analyses included on-site use of a portable X-ray fluorescence (P-XRF) device to inform sample selection, scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX) on paint and charcoal samples, polarized light microscopy (PLM) for material characterizations, and gas chromatography – mass spectrometry (GC-MS) and X-ray diffraction (XRD) for detailed chemical analysis of paint structures and composition. In addition direct dates of cave art using radiocarbon (C14) and Uranium-thorium (U-Th) dating methods are discussed. Results demonstrate multiple centuries of cave use during indigenous occupation and multiple phases and techniques of mark-making in dark zone locations within extensive cave systems. Visitors set out on pre-meditated journeys underground, making rock art using pigments from the cave floors, which they mixed into complex paints with the addition of plant gums from outside. This study is the first of its kind in the Caribbean providing insight into native paint recipes, material choices, and mark-making techniques. The methods have scope for widespread application and advance the integration of cave art research in archaeology.

Publication date: November 2017Source:Journal of Archaeological Science, Volume 87 Author(s): Philippe Dillmann, Roland Schwab, Sylvain Bauvais, Michael Brauns, Alexandre Disser, Stéphanie Leroy, Guntram Gassmann, Philippe FluzinOs isotopic ratios and trace element approaches were used to compare the signatures of ore and slag from different potential production sites located in eastern France and South-West Germany with the signature of artefacts from the end of the first Iron Age. A set of 31 artefacts was tested, consisting of bipyramidal semi-products, chariot tires, blooms and other commodities. The complementarity of the two approaches is demonstrated. Bipartite bipyramidal semi-products made by assembling two crude masses of distinct origins are evidenced suggesting the existence of intermediate producing centres assembling products from different origins. Only the provenance of blooms and wheel-tires could be established as local. Two spheres of metal circulation were evidenced: prestige and local. Bipyramidal semi-products and chariot tires belong to different long distance distribution networks.

Publication date: November 2017Source:Journal of Archaeological Science, Volume 87 Author(s): Rommy Cobden, Chris Clarkson, Gilbert J. Price, Bruno David, Jean-Michel Geneste, Jean-Jacques Delannoy, Bryce Barker, Lara Lamb, Robert G. GunnIdentifying extinct fauna in rock art is a common but difficult exercise. Here we use geometric morphometric analysis of shape to examine the oft-cited painting from Arnhem Land attributed by Gunn et al. to the long-extinct species Genyornis newtoni. We compare the shape of key anatomical features in this painting to anatomical depictions of Genyornis as well as to two other possible candidates – the emu and the magpie goose. Comparisons are also made to rock art depictions of these birds from northern Australia. We find that while the so-called ‘Genyornis’ painting does more closely resemble anatomical depictions of Genyornis than any other bird examined, all rock art images overlap in shape to such a degree that confident assignment of this image to any avian species is problematic.

Publication date: November 2017Source:Journal of Archaeological Science, Volume 87 Author(s): Marcel Weiss, Aleksander Otcherednoy, Andrzej WiśniewskiThe late Middle Paleolithic in central and eastern Europe is defined by the presence or absence of certain bifacial tools and blank production methods. Hence, the assemblages between MIS 5a and MIS 3 are classified as Mousterian, Taubachian, Micoquian, Micoquo-Prondnikien, Prądnik cycle and Keilmessergruppen, among others. We like to address here the questions of what do these assemblages look like when the type fossils (“fossil directeur”) are set aside and what are the main drivers of variability within and between these assemblages. Therefore, we analyzed nine assemblages of four late Middle Paleolithic open-air sites of the European Plain: Pouch and Königsaue for central Germany, Wrocław-Hallera Av. for southwestern Poland and Khotylevo I-6-2 for western Russia. Our study is based on an attribute analysis of flakes, as they are the most numerous artifact type in the lithic assemblages, bearing traces of the flaking technology in their morphology. Linear and nonlinear multivariate statistical analyses of the flake attributes show similar patterns for the assemblages and show no distinctions between Mousterian and Micoquian assemblages aside from the type fossils. Additionally, assemblage variability is, except for one case, not site specific or regional. The analysis of the factors that drive within and between assemblage variability revealed that the assemblages are influenced by site preservation, raw material size and economy, as well as similar blank production and tool manufacture methods that are present in varying degrees in each assemblage. In other words, taking into account site preservation, the overall character of these late Middle Paleolithic assemblages primarily reflects the flexible application of late Neanderthal flaking and tool production methods to the local raw material constraints. Once the type fossils are removed, these assemblages represent a range of variability that cannot be grouped readily into named archaeological entities that could represent distinct human groups.

Publication date: November 2017Source:Journal of Archaeological Science, Volume 87 Author(s): Alessio Palmisano, Andrew Bevan, Stephen ShennanRaw counts of archaeological sites, estimates of changing settlement size and summed radiocarbon probability distributions have all become popular ways to investigate long-term regional trends in human population. Nevertheless, these three archaeological proxies have rarely been compared. This paper therefore explores the strengths and weaknesses of different kinds of archaeological evidence for population patterns, as well as how they address related issues such as taphonomic loss, chronological uncertainty and uneven sampling. Our overall substantive goal is to reconstruct demographic fluctuations in central Italy from the Late Mesolithic to the fall of the Roman Empire (7500 BC-AD 500), and with this in mind, we bring to bear an unusually detailed and extensive dataset of published central Italian archaeological surveys, consisting of some 10,971 occupation phases at 7383 different sites. The comparative results demonstrate reassuring consistency in the suggested demographic patterns, and where such patterns diverge across different proxies (e.g. Late Bronze Age/Iron Age) they often do so in useful ways that suggest changes in population structure such as site nucleation or dispersal.

Publication date: November 2017Source:Journal of Archaeological Science, Volume 87 Author(s): Saul L. Hedquist, Alyson M. Thibodeau, John R. Welch, David J. KillickTurquoise has been used in the American Southwest since “time immemorial,” and remains an important material for contemporary indigenous groups of the region. Detailed studies of ancient turquoise mines are few, however, and inferences of turquoise procurement and provenance have been limited. Our intensive investigation of one mine, the Canyon Creek locale in Arizona, integrates archaeology and geochemistry to enhance understanding of the mine and its output. A detailed description of the mine’s morphology and geologic setting lays foundations for interpreting an isotopic analysis of specimens from the mine’s four localities. The analysis reveals extremely radiogenic Pb isotope ratios, which distinguish Canyon Creek turquoise from that of other known sources in the American Southwest. Its distinctive isotopic signature makes Canyon Creek turquoise readily identifiable in archaeological assemblages. The presence of turquoise from Canyon Creek at late prehispanic settlements in east-central Arizona helps clarify the mine’s chronology of use and regional distribution. Our observations suggest the mine was larger than previously supposed, and that it provided an important source of turquoise for inhabitants of the region during the thirteenth and fourteenth centuries AD.

Publication date: November 2017Source:Journal of Archaeological Science, Volume 87 Author(s): Gianna Ayala, John Wainwright, Joanna Walker, Rachel Hodara, Jerry M. Lloyd, Melanie Leng, Chris DohertyArchaeological discussions of early agriculture have often used the Neolithic village of Çatalhöyük in central southern Turkey as a key example of the restricting effect of environment on agricultural production and organization. Central to these discussions is the palaeoenvironmental reconstruction of the landscape surrounding the site. This paper presents an important new dataset from an intensive coring programme undertaken between 2007 and 2013 in the immediate environs of the site, designed to improve significantly the spatial resolution of palaeoenvironmental data. Using sediment analyses including organic content, magnetic susceptibility, particle size, total carbon and nitrogen contents and carbon isotope analysis, coupled with 3D modelling, we are able to present a new reconstruction of the palaeotopography and sedimentary environments of the site. Our findings have major implications for our understanding of Neolithic agricultural production and social practice.We present four phases of environmental development. Phase 1 consists of the final phases of regression of Palaeolake Konya in the later parts of the Pleistocene, dominated by erosion due to wind and water that created an undulating surface of the marl deposited in the palaeolake. Phase 2 occurs in the latest Pleistocene and early Holocene, and indicates increased wetness, probably characteristic of a humid anabranching channel system, in which there are localized pockets of wetter conditions. In Phase 3a, this infilling continues, producing a flatter surface, and there are fewer pockets being occupied by wetter conditions. The fluvial régime shifts from humid to dryland anabranching conditions. The earliest period of occupation of the Neolithic East Mound coincides with this phase. Phase 3b coincides with the shift of occupation to the West Mound in the Chalcolithic, when there is evidence for a very localized wetter area to the southeast of the West Mound, but otherwise a continuation of the dryland anabranching system. Finally, Phase 4 shows a shift to the pre-modern style of fluvial environment, modified by channelization. This reanalysis demonstrates the importance of extensive spatial sampling as part of geoarchaeological investigations.With this new evidence we demonstrate that the landscape was highly variable in time and space with increasingly dry conditions developing from the early Holocene onwards. In contrast to earlier landscape reconstructions that have presented marshy conditions during the early Holocene that impacted agriculture, we argue that localized areas of the floodplain would have afforded significant opportunities for agriculture closer to the site. In this way, the results have important implications for how we understand agricultural practices in the early Neolithic.

Publication date: October 2017Source:Journal of Archaeological Science, Volume 86

Publication date: November 2017Source:Journal of Archaeological Science, Volume 87 Author(s): Matthew Bampton, Alice Kelley, Joseph Kelley, Michael Jones, Gerald BigelowSubarctic communities are useful bellwethers of human adaptability to climate change. Previous studies have compared the socio ecological adaptations of culturally comparable but geographically separated communities such as medieval Greenland and Iceland. In the Shetland Islands during the Little Ice Age (LIA) unusual storminess in the 16th and 17th centuries deposited wind driven sand in the township of Broo, Dunrosssness, and on its surrounding estates. Documents, historical records and optically stimulated luminescence (OSL) dated sand layers show the history of deposition, and reveal two episodes of sand movement one from the mid 16th century, the second from the late 17th or early 18th century. Artifacts, records and stratigraphy suggest Broo’s inhabitants successfully resisted the 16th century sand incursion, but were driven from their homes by the early 18th century. Adjacent communities embedded in the same socio economic culture survived the same events and remain viable settlements to the present day. Wind simulations demonstrate that storm conditions are likely to produce markedly lower wind velocities in the area around Broo than over the surrounding landscape making it singularly vulnerable to sand inundation. In this instance human ingenuity and resilience could not counter the misfortune of location. We conclude that in this marginal environment small geographical differences had profound and lasting impact on survivability during an episode of catastrophic environmental change.

Publication date: Available online 21 September 2017Source:Journal of Archaeological Science Author(s): Paul O’Higgins, Laura C. Fitton, Ricardo Miguel GodinhoThe study of morphological variation in the hominin fossil record has been transformed in recent years by the advent of high resolution 3D imaging combined with improved geometric morphometric (GM) toolkits. In parallel, increasing numbers of studies have applied finite elements analysis (FEA) to the study of skeletal mechanics in fossil and extant hominoid material. While FEA studies of fossils are becoming ever more popular they are constrained by the difficulties of reconstruction and by the uncertainty that inevitably attaches to the estimation of forces and material properties. Adding to these modelling difficulties it is still unclear how FEA analyses should best deal with species variation.Comparative studies of skeletal form and function can be further advanced by applying tools from the GM toolkit to the inputs and outputs of FEA studies. First they facilitate virtual reconstruction of damaged material and can be used to rapidly create 3D models of skeletal structures. Second, GM methods allow variation to be accounted for in FEA by warping models to represent mean and extreme forms of interest. Third, GM methods can be applied to compare FEA outputs – the ways in which skeletal elements deform when loaded. Model comparisons are hampered by differences in material properties, forces and size among models but how deformations from FEA are impacted by these parameters is increasingly well understood, allowing them to be taken into account in comparing FEA outputs.In this paper we review recent advances in the application of GM in relation to FEA studies of craniofacial form in hominins, providing examples from our recent work and a critical appraisal of the state of the art.