Methodology,consetvation criteria and performance evaluation for archaeological site shelters

Abstract

The many intersecting issues that arise when deciding whether to shelter an archaeological site should be approached using a values-based methodology, one that has demonstrated its validity arid practical worth in conservation over recent decades. Nonetheless, pitfalls abound in the decision-making process and in establishing effective conservation criteria which should be based principally on a thorough understanding of the threats to the resource and the specific deterioration mechanisms operating, with the objective of creating a shelter that will preserve the site's identified values. An aspect that has received almost no attention in the past is evaluation of a shelter's performance, both qualitative and quantitative, in preserving the site. It is urged that this receive priority when establishing the conservation criteria during the initial phases of a sheltering project. Issues are illustrated from a range of diverse sites, including a number of published shelters. The paper first looks at the examples of the Laetoli (Tanzania) and Lark Quarry (Australia) trackway sites in the context of decision-making and conservation criteria, and then discusses two examples of evaluation: one quantitative, using an experimental shelter and the other discussing publications on a petroglyph site shelter.     

Investigating the production and distribution of plain ware pottery in the Samoan archipelago with laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS)

This paper presents a provenance study of 170 ceramic artifacts and 21 ceramic tiles from three islands in the Samoan archipelago using laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). Our analyses confirm that LA-ICP-MS can be used to differentiate between clay formations on a single island. We identify different distribution patterns for pottery recovered from lowland and highland sites on Tutuila Island. We also examine evidence for movement of pottery between islands, and find only limited evidence for such movement. Our findings suggest dynamic patterns of prehistoric interaction and site use that need to be evaluated with further data from across the archipelago.     

Characterising the late prehistoric, ‘Romano-British’ and medieval landscape, and dating the emergence of a regionally distinct agricultural system in South West Britain

Palaeoenvironmental evidence for the character of lowland cultural landscapes during the last 2500 years in Britain is poorly understood, owing to a combination of an over-reliance on data from upland sequences, and because lowland mires are typically located in positions marginal to areas of settlement and agriculture. This paper presents an attempt to derive environmental evidence for this time period from a lowland context in order to characterise the key periods of change and continuity in the lowlands. The study focuses on mid-Devon, in South West Britain, and uses small pollen sites which are embedded within the historic landscape. The South West is a particularly poor region for lowland environmental data, and has until now been reliant on upland sequences. The results show that continuity, rather than abrupt change, has characterised the landscape from the later Iron Age to the early medieval period (around cal AD 800). There is no palynologically distinct Roman period in the data, contrary to evidence from the high uplands of Exmoor that suggests a decline of the agricultural system during the immediate post-Roman period. Around cal AD 800 there is a change in the agricultural system from predominantly pastoral activities to one that led to relatively high proportions of cereal pollen appearing in the sequences, which is interpreted here as marking the onset of convertible husbandry, a regionally distinct agricultural system which is recorded from AD 1350, but whose origins are not documented. This agricultural system remained in place until the post-medieval period, when the predominant agricultural regime returned to pastoralism around AD 1750. The data clearly show discrepancies between the high uplands and the lowlands, demonstrating the potential hazards of extrapolating upland sequences to lowlands environments.     

Ethics and Archaeological Tourism in Latin America

Archaeological tourism and ethics are two fields that, with exceptions, scholars have been reluctant to combine. There is, however, an increasing concern on the general subject of tourism and ethics and this article will draw examples from Latin America to explore the intersection between both. An overview of the history of archaeological tourism in Latin America will be provided. A growing number of archaeologists all over Latin America are becoming active in promoting or assisting the conversion of sites into tourist attractions. For some, it is a way of protecting sites in the face of the dangers brought about by uncontrolled tourism and for others helping locals to earn a living is a humanitarian question. Yet, archaeological remains are not neutral, but powerful means of creating historical memory and identity. Tourism becomes a means of advertising and even of legitimizing the existence of groups and that politicizes archaeologists’ engagement with tourism. This politicization represents an ethical challenge for the profession. Also, the conversion of archaeological ruins into tourist attractions can only be made through the commodification of culture. This has been denounced by some scholars as another postcolonial appropriation and neoliberal method of controlling indigenous groups, but hailed by others as a good thing for indigenous communities as it provides them with a living.     

An Attempt to Classify the Landscapes of the USSR

The author, who regards landscapes as physical terrain types rather than as regional units, briefly surveys previous approaches to landscape classification and offers his own classification scheme. The scheme is based on a major division of all landscapes into plains (lowland and upland) and mountain types (distinguished by vertical zonality). Within the classification, soils and bioclimatic criteria are used to determine the upper rungs of the hierarchy, and geological and geomorphic criteria are taken into account mainly at the lower levels.     

Neolithic subsistence patterns in northern Borneo reconstructed with stable carbon isotopes of enamel

The Neolithic period in island Southeast Asia is characterized by various population movements, technological innovations, and the introduction/adoption of agricultural foodstuffs. Human subsistence trends during this period, however, are poorly understood. Broad spectrum foraging is generally assumed for prehistoric groups utilizing rain forest food resources but the degree to which cultigens were part of the dietary repertoire remains unclear. This paper explores human subsistence patterns at three penecontemporaneous Neolithic sites in Sarawak (East Malaysia) using stable isotope ratios of carbon and oxygen derived from tooth enamel apatite. The sites (Niah Cave, Lubang Angin, and Gua Sireh) differ in local ecology and cultural circumstance but all are situated in C₃-dominant lowland primary rain forest. Significant differences in δ¹³C values between sites likely reflect the canopy effect and variations in foraging pattern. Lower values at Lubang Angin suggest dependence upon closed forest foraging. Higher values at Neolithic Niah Cave and Gua Sireh suggest more open forest horticulture and subsistence, including some form of systematic food production, collection, and/or habitat modification.     

Spatial autocorrelation tests and the Classic Maya collapse: Methods and inferences

Spatial autocorrelation, resulting in pattern or structure in geographically distributed data, is discussed in theoretical and practical terms. Tests for spatial autocorrelation are presented, along with an explication of the relationship between autocorrelation models, the product-moment correlation coefficient and the spatial autocorrelation test statistic. Two archaeological examples illustrate the application of the auto-correlation test statistic. The first uses a hypothetical data set, which shows the type of map patterns that appear with various levels of spatial autocorrelation, and the second examines the terminal distribution of long-count-dated monuments at lowland Classic Maya sites. The results of the second example fail to support arguments for simple patterning in the cessation of the erection of these monuments and, by inference, in the Maya collapse itself. Finally, it is argued that while the identification of spatial autocorrelation is often the goal of spatial analyses, the presence of autocorrelation violates the assumptions of certain statistics used in such analyses.     

The Pyrenean Neighbour; or,the Vicinal System in the Western Pyrenees

Excavations have recently produced valuable new evidence for the structural types used in the vernacular architecture of lowland and eastern Britain during the sixth-eighth centuries A.D. The evidence from a number of contemporaneous sites suggests that a highly characteristic building tradition was in widespread use. The identifying features of this building tradition are defined and its affinities discussed.     

Response to late Bronze Age climate change of farming communities in north east Scotland

Pollen analyses are presented spanning the Bronze and Iron Ages at two sites within one river catchment in north east Scotland, one upland and one lowland site, to test the hypothesis that subsistence agricultural communities relocated their activities in response to major climatic deterioration at the end of the Bronze Age. Such responses were identified, involving the probable cessation of arable farming around the upland site and increases in the intensity of anthropogenic impacts around the lowland site. These changes are consistent with a model that posits a restructuring of agricultural activities, but are not considered indicative of settlement abandonment in the face of climatic stress.     

Partial Solutions to Partially Understood Problems — The Experience of In Situ Monitoring and Preservation in Somerset’s Peatlands

Abstract

The peat moors of lowland Somerset contain a wealth of waterlogged archaeological sites, including some of the most significant prehistoric monuments in the country. There has been a long history of attempts to preserve archaeological sites in situ and monitoring of the burial environment began in 1982. The monitoring has become more complex over time, but the results suggest the same continuing problem of a drop in the water table over the summer months across the whole landscape. With the sole exception of the portion of the Neolithic Sweet Track that benefits from an irrigation system, all the other known sites remain at risk of gradual destruction. The solutions must be found on a landscape scale using agri-environment payments to secure sustainable management of the peat resource. Unfortunately, short-term changes to these payments and long-term changes to the climate are likely to worsen the situation and eventually to require a more drastic solution to the problem. Evidence has been generated to support an ecosystems approach to sustainable peatland management.     

Fluvial sediments, correlations and palaeoenvironmental reconstruction: The development of robust radiocarbon chronologies

Multiple sequences of radiocarbon dates extracted from organic materials are increasingly being used to provide robust chronologies for landscape development, particularly the timing and correlation of significant climatic and ‘process’ events. Whilst the validity of using such frameworks in sedimentary environments such as lake basins and raised bogs has been the focus of much attention, such debates have not extended to fluvial systems. Using examples from three lowland, vertically accreting river valleys in East Anglia, UK, this paper assesses the robustness of their associated radiocarbon chronologies by assessing the contrasting age estimates that are obtained by dating different parts of the same organic sample (humic, humin and plant macrofossils) at a variety of stratigraphic levels. Overall, the humin and humic acid fraction results were statistically consistent, whilst the plant macrofossil remains were found to be of a slightly younger age. In these examples, it is argued that the younger ages appear to be the result of Phragmites (common reed) roots pushing plant macrossils through the sedimentary sequence or opening up voids for material to fall through, although studies in lacustrine and mire environments suggest alternative explanations may also be possible. Whichever explanation is preferred, this study demonstrates clearly that the complexity of valley floor stratigraphy and processes is such, that using single radiocarbon dates, whether AMS or bulk samples to reconstruct chronologies of ‘geomorphic system response’ may need to be refined and subjected to the same level of assessment that has been applied in other sedimentary systems.     

The potential of hyperspectral and multi-spectral imagery to enhance archaeological cropmark detection: a comparative study

Aerial photography has made the single most important contribution to our improved appreciation of the density, diversity and distribution of archaeological sites in Britain since World War Two. This is particularly the case for areas of intensive lowland agriculture where ploughed-out sites are known mainly from marks in the crops growing above them. However, reconnaissance for such cropmarks is not equally effective throughout the lowlands, because of the particular conditions of drier weather, well-drained soils and arable agriculture required before they become visible, and is highly unpredictable.     

Feature Discovery and the Sampling Requirements of Archaeological Evaluations

Abstract

Features are important deposits whose density and distribution pose acute sampling problems for archaeological investigations. Excavation is inherently a sampling process, but the ability of excavation samples to meet two important criteria—discovery of features and precise estimation of their frequency—rarely is assessed and often is doubtful. Combining archaeological data on feature density and distribution from Midwestern U.S. sites with appropriate statistical theory, this paper shows that conventional sample standards often are inadequate to meet the criteria. This failure has grave implications for the preservation and management of archaeological sites.     

The US military base network and contemporary colonialism: Power projection, resistance and the quest for operational unilateralism

This article explores the contemporary global network of US military bases. This paper examines how the geography of this network is shaped not only by military objectives but also by resistance from allied governments and communities adjacent to bases. Using examples from Guam, Puerto Rico, Okinawa and other locales this paper examines how local resistances to US bases have caused the Department of Defense to increasingly rely on non-sovereign islands as sites for bases. These sites, military strategists believe, will enable the military to train without hindrance and to operate without the need for consultation with allies. These colonies, however, are also sites were military activities are actively resisted. The resulting base network is thus shaped not only by global military priorities, but also by an increasingly globalized network of local social movements resisting militarization.     

Linking Heritage Preservation and Community Development: An Assessment of Grassroots Heritage Based Projects as Vehicles for Socio-Economic Development and Sustainable Heritage Preservation in Zimbabwe

This paper engages the practical aspects of linking heritage, in particular, archaeological heritage, with both individual and community economic development. In recent years, there has been growing realisation that culture, inclusive of cultural heritage, can be both a driver and an enabler of economic development, especially in developing countries. However, few documented examples demonstrate the validity of such arguments. The paper explores some practical examples of how, at the grassroots level, individuals and communities are attempting to exploit archaeological heritage sites as well as other cultural and natural heritage resources for income generation in Zimbabwe. The major thrust of the paper is to assess the manner of use and the viability of such ventures. Since the ability of archaeological heritage to generate revenue and support people around the sites has a direct effect on long-term survival of such heritage, ultimately, the paper contributes to the discourse on linking heritage and economic development as well as the theme of sustainable heritage preservation.     

What Maya Collapse? Terminal Classic Variation in the Maya Lowlands

Interest in the lowland Maya collapse is stronger than ever, and there are now hundreds of studies that focus on the era from approximately A.D. 750 to A.D. 1050. In the past, scholars have tended to generalize explanations of the collapse from individual sites and regions to the lowlands as a whole. More recent approaches stress the great diversity of changes that occurred across the lowlands during the Terminal Classic and Early Postclassic periods. Thus, there is now a consensus that Maya civilization as a whole did not collapse, although many zones did experience profound change.     

New Middle Palaeolithic sites from the Mani Peninsula,Southern Greece

We here report the first results from a systematic research project in Mani (Southern Greece), which includes survey and test excavations. Forty-six caves, rockshelters and open-air sites in lowland settings were surveyed. Geomorphological data were collected in order to assess how geological processes affect the preservation of sites and bias site distribution patterns. Artifacts manufactured from non-local rock indicate potential raw material transfers and suggest links among the different regions of Mani, related to mobility patterns. Our research in the Mani has nearly doubled the number of known Middle Palaeolithic sites from the region and confirmed that the peninsula has the strongest ‘Neanderthal signal’ identified to date in Greece. Almost all sites are located at coastal areas. Despite the influence of Pleistocene landscape dynamics, this distribution emerges as a persistent pattern, perhaps indicating a preference for coastal locations. The Neanderthal occupation of Mani can illuminate important aspects of Middle Palaeolithic adaptation in one of the southernmost coastal regions of Europe.     

GIS支持下的古窑址与地理环境关系研究——以福建省为例

为了研究福建省古窑址的分布和演变,以福建省南朝至宋元时期窑址分布为例,建立了古窑址分布地理信息系统,运用GIS的空间叠置、缓冲区、坡度和高程模型等分析方法,分析了古窑址与地理环境之间的关系。结果表明:从南朝至宋元时期福建省窑址发展经历了从起步到发展再到鼎盛的整个过程;各个时期窑址发展情况不一,侧重点不同;水源、坡度和高程是古人选择窑址时考虑的重要地理环境因素;古窑址大部分分布在距河流4千米以内,坡度小于15度,海拔400米以下区域。此外,GIS技术具有传统考古学无法比拟的优势,为考古学研究提供了一种重要参考方法。     

Using multivariate statistics and fuzzy logic system to analyse settlement preferences in lowland areas of the temperate zone: an example from the Polish Lowlands

The influence of relief, as well as other environmental features such as soils or the hydrological regime, on prehistoric settlement patterns is commonly accepted. Settlement patterns and preferences changed over time in different areas, so it is difficult to formulate general rules of human behaviour throughout history. In lowland areas of the temperate zone, which lack radical relief changes and have widespread access to water resources, specific settlement preferences and significant changes in these preferences are difficult to interpret.New methods developed to address the problem of the settlement transformations as a result of prehistoric settlement and economic processes using multivariate statistics have been adapted for the middle part of the Great Poland Lowland. In this region, data from the Polish Archaeological Record Project database have been used.Models of the dependence between geomorphological features and settlement intensity form the basis for estimating changes in prehistoric settlements. The degree of preference (or avoidance) is a nonparametric function of the number of archaeological sites observed in the area relative to the number of sites expected from a completely random pattern. The most crucial factors for settlement are distance to plateau edges, distance to water bodies, and the wetness index. The results show that the entire investigated area is more or less suitable for settlement, but the most occupied terrains are the areas near plateau edges.