δ18O Analyses of the Humpbacked Conch (Gibberulus gibberulus): Evaluating a Proxy for Reconstructing Sea-Surface Temperature at Chelechol ra Orrak,Palau

ABSTRACT

In Palau, Micronesia, marine resources, particularly shellfish, played a vital role in human subsistence for millennia. Despite the vast array of molluscan species in archaeological assemblages, there is a dearth of data on nearshore palaeoecology or prehistoric shellfish foraging practices. In this study, we analysed stable oxygen isotopes (δ¹⁸O) values present in the calcium carbonate shell of Gibberulus gibberulus from the Chelechol ra Orrak archaeological site to reconstruct average nearshore sea-surface temperatures (SST) from approximately 1500–1100 cal BP. Modern shellfish samples and environmental data were collected from intertidal zones near the site and x-ray diffraction (XRD) was employed to identify the biomineralogical composition of G. gibberulus. These steps provide necessary information for the selection of the proper oxygen isotope-to-SST conversion formula. The selected formula was applied to δ¹⁸O samples from archaeological shells to reconstruct prehistoric SST averages. The results of this proxy validation study verify that G. gibberulus accurately records ambient SST and can be used to reconstruct ancient nearshore conditions. These findings also contribute to the establishment of an environmental baseline, which can be used to examine how environmental changes may have influenced the availability of molluscan taxa that in turn influenced human subsistence practices through time.     

Economic Change in the Prehistoric Hexi Corridor (4800–2200 bp), North‐West China

It is widely known that the Hexi Corridor in North‐West China lies at a hub of trans‐Eurasian cultural exchange. Its role became increasingly important during the late prehistoric period, particularly as the ancient Silk Road began to be used. While the profound transformation of local cultural characteristics in the late Neolithic and the Bronze Age is well documented, the detailed economic dynamics of cultural evolution have not yet been clearly illustrated. In this paper, we report on significant new zooarchaeological and faunal isotopic data from the Neolithic and Bronze Age sites in the Hexi Corridor. The primary objective is to systematically reconstruct the prehistoric economic context of this area by combining these new data with previous archaeological studies and radiocarbon dates. We argue that the primary economic activities of local inhabitants changed dramatically in the prehistoric Hexi Corridor. This was marked by agricultural production at c.4800–4000 bp , agro‐pastoral production at c.4000–3000 bp and animal husbandry at c.3000–2200 bp , respectively. The major subsistence strategies of these three periods show considerable variation. It is very likely that these transformations of economic patterns in the prehistoric Hexi Corridor were primarily triggered by transcontinental cultural exchange and, to a lesser extent, by climate change.     

NUCLEAR MAGNETIC RESONANCE SPECTROSCOPIC AND ISOTOPIC ANALYSIS OF CARBONIZED RESIDUES FROM SUBARCTIC CANADIAN PREHISTORIC POTTERY

Late prehistoric pottery is found in abundance at archaeological sites around Southern Indian Lake. Black residues, found on the two dominant vessel forms, flat plates and round pots, are presumed to be the remains of prehistoric meals. ¹³C cross-polarization magic-angle-spinning nuclear magnetic resonance spectroscopy (CPMAS NMR) and¹³C and¹⁵ N isotopic ratios and C/N ratios are used to reconstruct prehistoric diet and to shed light on possible uses for the plates. Samples of foods were cooked in clay pots, on a wood fire, to simulate the conditions of burning that could have produced the residue. Decomposition of carbohydrates, protein, and fat during cooking is studied with ¹³C CPMAS NMR, and the effect of cooking on isotopic and C/N ratios documented. Predominantly fish and fat were cooked in the pots, whereas the residues from plates contain a greater proportion of fat and could have been used as frying pans or possibly as fat-burning lamps placed on the ashes of a wood fire.     

On the Additions to the Collection of National Antiquities in the British Museum

The evidence for prehistoric occupation in the area of the modern City of London is re-assessed. Two myths surrounding the city's prehistory are examined: a literary myth of a glorious Trojan past and a modern archaeological myth of the absence of prehistory. Having drawn a ‘traditional’ distribution map of prehistoric artefacts, the authors attempted to improve its reliability by quantifying the impact of Roman groundworks on the surviving prehistoric deposits. Topographic models of the area in prehistory and in the Roman period were drawn, and the methodology of the interpolation is discussed. The relative value of in situ, residual and stray finds are considered in the light of this new information. While there is good evidence for Late Bronze Age occupation in the City, the evidence for Neolithic activity is considered to be heavily skewed by Roman activity. The data are used to suggest areas of the City where there is particularly good potential for the survival of prehistoric deposits. The City provides a case study for analysing prehistoric material in a ‘difficult’, deeply stratified, urban context more associated with Roman and medieval archaeology.     

“Random” hunting and the composition of faunal samples from archaeological excavations: A modern example from New Zealand

The ability of analyses of the age- and sex-composition of faunal samples from archaeological excavations to permit reliable inferences concerning prehistoric culling practices and, in particular, to distinguish between wild and domesticated animals is investigated by examining the demographic composition of 14 groups of red deer (Cervus elaphus) shot at random from a helicopter in the Southern Alps of New Zealand in early 1975. It is concluded that such “random” hunting can produce samples of bones that are apparently biased with respect to age and/or sex. The implications of these findings for prehistoric studies are discussed briefly with particular reference to the exploitation of red deer in Italy and Switzerland, and greater caution in excavating and analysing faunal samples is urged.     

Bone chemistry and the reconstruction of diet: Strontium discrimination in white-tailed deer

Studies of the relationship between the strontium content of human bone and past diet are still in an experimental stage. Because of the low frequency of carnivore remains at most archaeological sites and the absence of information on local strontium levels, it has been difficult to (1) estimate dietary intake for a prehistoric population, and (2) to compare prehistoric populations from spatially disparate areas. However, examination of strontium/calcium ratios in a modern herbivore may help to alleviate these problems. Bones from modern white-tailed deer (Odocoileus virginianus) were compared with deer diet in Wisconsin. An observed ratio between deer bone and diet in terms of a strontium/calcium index was calculated at 0204, which compares favourably with observed ratios reported for other mammals. Prehistoric white-tailed deer are used in the analysis of two Late Archaic sites in the midwestern U.S.A. The strontium levels in deer can be used as a baseline for comparison between sites. The prehistoric subsistence patterns are generally comparable, with hunting accounting for the bulk of the diet.     

Bioturbation of Submerged Sites by the Asiatic Clam: A Case Study from Amistad Reservoir SW Texas

Abstract

Burrowing clams represent a poorly studied threat to shallowly buried and submerged archaeological sites across North America. Test excavations at a formerly submerged prehistoric terrace site in SW Texas unearthed burrowing clams (Asiatic clam Corbicula fluminea) in, under; and around features. A review of this clam's ecology, burrowing habits, geographical distribution, and presence in this and other archacological sites illustrates the potential for significant sediment disturbances.     

The late prehistory of xinjiang in relation to its neighbors

Recent research by Chinese archaeologists has identified many late prehistoric (2000-400 B.C.) oases, pastoral settlements, and cemeteries in eastern Central Asia (Xinjiang province of China). The synthesis presented here organizes the data into 10 archaeological cultures, defined on the basis of ceramics, burials, small finds, and architecture. The archaeological cultures reveal two periods, corresponding to the Bronze Age and the Iron Age. The oases cultures formed a core area before the Chinese Han period and maintained close contacts with nearby highland pastoralists in Siberia and western Central Asia. The evidence for interaction between Xinjiang and the complex cultures in China and western Central Asia is evaluated with regard to the origins of the early Xinjiang cultures.     

Multi-isotope fingerprints (O,Sr and Pb) in archaeological animal bone bioapatite: Similarity search and the suitability for provenance analysis in a geologically complex Alpine region

Multi-isotope fingerprints in the bioapatite of archaeological skeletons are mostly superior over single isotope analyses for provenance studies. Gaussian mixture model (GMM) clustering is a novel tool for a similarity search among multidimensional data sets and at the same time permits the evaluation of the structural importance of particular isotopic ratios in the data set. We applied three GMM clustering experiments on multi-isotope fingerprints—stable strontium (Sr), lead (Pb) and oxygen (O) isotopic ratios—established in 217 archaeological animal bones excavated along a specific transect across the European Alps. This reference region had been in use since prehistoric times by humans who crossed the Alps from north to south, and vice versa. The resulting clusters permit a spatial assignment of the specimens with a very high probability, in particular with regard to the geological complexity of the region. A combination of Sr with Pb stable isotopes led to an optimal differentiation between the southern and northern Alpine forelands that cannot be distinguished from each other by ⁸⁷Sr/⁸⁶Sr ratios alone, while the contribution of δ¹⁸O is not particularly high. The isotopic mapping and subsequent cluster analysis is suitable for the analysis of archaeological human finds and the reconstruction of the direction of transalpine mobility and trade.     

Paleoethology as a tool for the development of archaeological models of land-use: the Crimean Middle Palaeolithic

The principal aim of our research is to capitalize on the close relationship between prehistoric hunters and prey to develop spatial models for the investigation of land-use patterns. Ideally, these models should be useful both as predictive tools for designing regional archaeological surveys, and as analytical tools for studying the distribution of known archaeological sites. Here, we build upon a basic G.I.S. model (including standard environmental variables such as slope, aspect and distance to water) adding a paleoethological variable in the form of range reconstructions for the regionally dominant, prehistoric human prey species: Equus hydruntinus.     

PREHISTORIC ANTIGORITE PROCUREMENT IN CYPRUS

The Canadian Palaipaphos Survey Project in the Paphos district of south-western Cyprus investigated extensive areas of the Esouzas, Xero, and Dhiarizos River valleys, locating hundreds of archaeological sites spanning the nine millennia from the aceramic Neolithic period to the recent era (Rupp et al. s1984 and 1986). Antigorite artefacts were recovered from Neolithic, Chalcolithic and Bronze Age settlements. A number of geological sources have been proposed for the material from which these artefacts were manufactured. The results of neutron activation analyses of archaeological and geological specimens suggest that the Troodos ophiolite/Kouris River secondary deposits were the primary source of antigorite for the prehistoric populations of the study area. Extreme care must be taken when analysing antigorite samples to avoid material with grey-black magnetite-rich inclusions. since these have radically different trace element chemistries from the pure antigorite.     

ISSUES RELATED TO DETERMINING BURIAL CHRONOLOGY BY FLUORIDE ANALYSIS OF BONE FROM THE MAYA ARCHAEOLOGICAL SITE OF CHAU HIIX,BELIZE*

Fluoride percentage of bone is often used to determine relative dates of burials in archaeological contexts. An analysis of prehistoric Maya burials at Chau Hiix, Belize, identifies taphonomic factors, including soil composition, grave depth, soil disturbance, age at death and cortical bone thickness, that cause variations in the rate of fluoride absorption by altering the access of water to bone. This example demonstrates that fluoride dating is unlikely to be useful at most prehistoric Maya sites because of the inconsistent taphonomy due to typically diverse mortuary practices, and it also serves as a cautionary tale for applications of this methodology in other contexts.     

Quantifying woodland resource usage and selection from Neolithic to post Mediaeval times in the Irish Midlands

The antiquity and context (site or feature type) are the two principal factors that act as a framework for interpreting charcoal and wood data from archaeological sites in the recreation of past woodland environments. This research addresses these parameters through the analysis of over 18,000 charcoal fragments from 57 archaeological excavations carried out along a 61?km road scheme in the midland region of Ireland. Observations on spatial vegetation dynamics and woodland resource patterns are also reported on. The data were analysed through percentage frequency and multivariate analyses. The results reveal woodland resource usage in terms of wood types selected for use as fuel or as structural wood as well as patterns of change and variability in taxonomic composition in relation to site types, feature types and time periods. Selection was found to be low in prehistoric times and in particular at burnt mound sites/fulachta fiadh but became increasingly important as time progressed. This has important implications when charcoal from archaeological settings is used in environmental reconstructions.     

Breadfruit Fermentation in Pohnpei,Micronesia: Site Formation,Archaeological Visibility,and Interpretive Strategies

Fermentation is a common method of processing and preserving breadfruit throughout the Pacific Islands. While these pits are often reported in the archaeological record, they can pose some interpretive challenges. This paper presents an analysis of probable archaeological breadfruit (Artocarpus altilis (Parkinson) Fosberg) fermentation pits on Temwen Island, Pohnpei, Micronesia. Using the existing ethnographic record as a guide, I present archaeological and paleoethnobotanical criteria for identifying fermentation features. Architectural and stratigraphic analyses from four excavated pits match ethnographic expectations. Phytolith analysis shows some concurrence in terms of taxonomic data, but is more useful for indicating disturbance specific to building activities. Based on the distribution and size of pits present in the survey area, I suggest that breadfruit fermentation took place as primarily a household level (rather than community level) activity during the late prehistoric and early historic period in Pohnpei.     

Archaeology and in situ Preservation in Canton Thurgau,Switzerland

Canton Thurgau (approximately 1000 km²) is situated in the north-east of Switzerland. Its diverse landscape is notable for its hills, the Thur Valley, and Lake Constance. The Archaeology Department of Canton Thurgau is responsible for its archaeology. The archaeological map is quite complete and has over one thousand sites, ranging from the Palaeolithic to post-medieval periods. Particularly remarkable are the prehistoric lakeside dwellings (among them, four UNESCO World Heritage Sites) and the Roman sites, some of which have extraordinarily good conditions for preservation. The vicus Tasgetium (Eschenz) has produced one of the largest collections of Roman wooden objects and features found anywhere in the world. The Archaeology Department of Canton Thurgau conducts field surveys, excavations and scientific research. Its collections and archive are also of great importance. A major goal is to preserve the numerous sites of the canton in situ. In sensitive shore areas, where erosion (wave action, shipping etc.) threatens the exposed prehistoric cultural layers of the pile dwellings, measures are being taken to cover the areas and keep destruction at bay. These interventions are accompanied by monitoring. But numerous Roman and medieval ruins have also been restored according to the latest standards and thus prevented from gradual destruction. Thanks to zoning plans and a close working relationship with the local authorities, timely intervention can take place when sites are threatened. The results of the archaeological research are conveyed to the public and professional circles through the Museum for Archaeology and by way of popular and subject-specific publications.     

Hunter-gatherer adaptations and assemblage structure

There is a growing tendency to conceive of hunter-gatherer adaptations as points on a yardstick, with foragers at one end and collectors on the other. Such a view limits our perspective and may trap anthropologists into seeing these categories as steps in an evolutionary progression. It is more productive to think of human adaptation as an N-dimensional space, with individual cases occurring at the intersections of the various dimensions. When this viewpoint is taken, it becomes clear that a search for a single dimension in archaeological data that can be used to characterize all prehistoric adaptations is unlikely to be fruitful. This paper explores the multidimensionality of hunter-gatherer adaptive behavior and reviews those archaeological manifestations that are empirically or logically linked with various dimensions of three components of adaptation: mobility, predation, and technology. Those manifestations with the greatest potential for characterizing prehistoric hunter-gatherer adaptive strategies are identified as measures of mobility type, frequency, stability, scheduling, demography, and range; predation mode, breadth, and scheduling; and the time budgeting and storage dimensions of technology. A subset of these measures is evaluated by comparing assemblages from the late prehistoric Columbia Plateau with expectations derived from ethnographies written on the same local area.     

LUMINESCENCE DATING OF POTTERY FROM LATER PREHISTORIC BRITAIN*

Dating of later prehistoric settlements relies heavily on potter; typologies in England and yet there has been little scientific dating in order to verify these typologies. In this work, luminescence dating techniques were applied directly to the pottery which forms the typological framework. Excellent agreement was obtained between the luminescence ages, and archaeological age ranges for known‐age pottery sherds with diagnostic form and surface decoration. A lower correlation, however, was found in several regions between the luminescence ages for undecorated body sherds and the archaeological assessment which was necessarily based solely on fabric, suggesting the need for reassessment of these fabric chronologies.     

Geoarchaeology and Archaeological Site Patterning on the Middle Gila River,Arizona

Abstract

Archaeological surveys and prehistoric settlement patterns are best interpreted when placed on a geomorphic map that defines the distribution and age of physical landforms. Survey data can thus be used to address questions of archaeological site visibility and synchronic and diachronic site patterning on the Gila River Indian Reservation, Arizona. A chronological series of alluvial and eolian landforms are defined on the reservation. The age of the landforms and underlying sediments has affected the preservation and visibility of the archaeological record. Further, late prehistoric Hohokam settlements (A.D. 700–1500) and their associated agricultural lands show a clear landform zonation and that the intensity of use of these landforms has changed over time.     

Counting your chickens: density and distribution of chicken remains in archaeological sites of Oceania

In an effort to document the density and distribution of prehistoric chicken (Gallus gallus) remains across Oceania, this paper presents the analysis of reported faunal remains from over 500 individual archaeological and natural sites from across the Pacific. We examined the presence and absence of chicken in secure prehistoric contexts and factors which may account for this, including human choice, taphonomy, the influence of other animals on extinction events, differential access to resources, and purposeful extirpation. This research highlights the need for full study of the large percentage (18%) of Pacific avifauna collections which have yet to be analysed, to clarify the range and importance of chicken in prehistory. Copyright © 2008 John Wiley & Sons, Ltd.     

LITHIC RESOURCES IN THE EARLY PREHISTORY OF THE ALPS*

Rocks, which are ubiquitous in archaeological sites as chipped or polished tools, were important factors in the prehistoric Alpine economic system. Archaeometric characterization and identification of source areas open the path to a more detailed understanding of the production and diffusion mechanisms behind Alpine lithic industries. An overview of the situation from the eastern to the western Alps in the Mesolithic, the Neolithic and the Copper Age illustrates current debates and issues.