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International audience; The formation of shell middens by hunter-gatherers and research into them has been a common field of study in different parts of Atlantic Europe. Although evidence of marine resource exploitation has been identified since the Middle Palaeolithic, and an increase can be seen during the Upper Palaeolithic, it is during the Mesolithic when true shell middens have been identified, apparently showing an increase in the exploitation of coastal areas. This paper summarizes the available information about the formation of shell middens and the exploitation of the coast in several regions of Atlantic Europe, and discusses the main research problems, as the differences in availability of information, the definition and characteristics of shell middens, the relation between shell middens and molluscan exploitation and the problems regarding the chronology of the sites. Finally, the paper proposes the main approaches that should be pursued by future research into this topic. (C) 2011 Elsevier Ltd and INQUA. All rights reserved.

As part of the excavations at Star Carr in the summer of 2007, a 'block' sample of peat from the archaeologically rich lake-edge deposits was removed for micro-excavation in the laboratory. The main aim was to compare on-site excavation and excavation in the laboratory. The techniques employed for the block were intended to maximise the chances of recovering fragile organic remains and provide an understanding of the spatial relationships between them. In addition, the time and resources required to excavate the block were evaluated in order to assess the merits of undertaking block lifting and excavation, with a view to informing future work.

Scotland's First Settlers comprised a survey project to locate and examine sites relating to the earliest, Mesolithic, settlement of the Inner Sound, along the coastlands between Skye and the west coast of Scotland. Particular foci of interest included the existence and nature of midden sites, the use of rockshelters and caves, and the different types of lithic raw material in use. In addition, information relating to the human use of the area up to the present day was recorded. Fieldwork took place over five years between 1999 and 2004: the entire coastline of the Inner Sound together with its islands was walked; 129 new archaeological sites were recorded; 36 sites were shovel pitted; 44 test pitted; and one major excavation took place. Excavation at Sand has been particularly exciting as it has resulted in the analysis of a shell midden dating to the early-mid seventh millennium BC, the early Mesolithic of Scotland. This report comprises the results of survey and excavation work as well as detailed artefact reports, full information on ecofacts such as shell, and bone, and information on the development of the landscape and environment, including sea level change. Finally, the broad-scale coverage of the project has led to a number of discussion points that have much to offer further work, both within the area and further afield. Digital material associated with this project is available through Archaeology Data Service archive http://dx.doi.org/10.5284/1000285 Scotland's First Settlers

[1] Climate archives contained in shells of the European limpet, Patella vulgata, accumulated in archaeological deposits can potentially provide much needed information about Holocene environmental change in midlatitude coastal areas. Before reconstructing climate information preserved in these zooarchaeological records, we studied the controls on oxygen and carbon isotope ratios (δ18O and δ13C, respectively) in modern specimens. We tested the hypothesis that P. vulgata precipitates its shell in isotopic equilibrium with the ambient water by comparing δ18OSHELL with predicted values. Predicted δ18OSHELL was constructed using observed sea surface temperature (SST) records and the equilibrium fractionation equation for calcite and water. We assumed a constant δ18OWATER value of +0.10‰ (VSMOW) based on published regional measurements. Comparison of δ18OSHELL with predicted values revealed that δ18OSHELL values were higher than expected by +1.01 ± 0.21‰. Consequently, estimated SST calculated from δ18OSHELL was 4.2 ± 2.3°C lower than observed SST. However, because of the relatively uniform offset between observed and expected δ18O, an adjustment can be made to account for this predictable vital effect. Thus past climate can be reliably reconstructed using this temperature proxy once the offset is taken into account. δ13C values have a similar cyclicity to the δ18O variation and therefore vary seasonally. However, δ13C is slightly out of phase relative to δ18O. An overall negative shift in δ13CSHELL over the lifetime of the individual indicates a vital effect associated with ontogeny. Further study of environmental and ecological factors that influence shell δ13C is required to evaluate fully the potential of carbon isotope ratios as a useful environmental proxy.

A number of charred surface residues, adhering to ceramic containers, were obtained from various coastal and inland sites in north-west Europe dating from the sixth to the fourth millennium cal bc. In order to investigate the use of these vessels and in particular to identify any marine products, the residues were subjected to carbon and nitrogen stable isotope analysis. Variation in carbon isotope ratios between different samples indicated that some vessels may have been used to process marine products. This analysis was corroborated by specific identification of aquatic products following structural and isotopic characterization of lipids extracted from selected samples.

General accounts of global trends in world prehistory are dominated by narratives of conquest on land: scavenging and hunting of land mammals, migration over land bridges and colonisation of new continents, gathering of plants, domestication, cultivation, and ultimately sustained population growth founded on agricultural surplus. Marine and aquatic resources fit uneasily into this sequence of social and economic development, and societies strongly dependent on them have often been regarded as relatively late in the sequence, geographically marginal or anomalous. We consider the biases and preconceptions of the ethnographic and archaeological records that have contributed to this view of marginality and examine some current issues focusing on the role of marine resources at the Mesolithic-Neolithic transition of northwest Europe. We suggest that pre-existing conventions should be critically re-examined, that coastlines may have played a more significant, widespread and persistent role as zones of attraction for human dispersal, population growth and social interaction than is commonly recognised, and that this has been obscured by hunter-gatherer and farmer stereotypes of prehistoric economies.

Shell middens are one of the most important and widespread indicators for human exploitation of marine resources and occupation of coastal environments. Establishing an accurate and reliable chronology for these deposits has fundamental implications for understanding the patterns of human evolution and dispersal. This paper explores the potential application of a new methodology of amino acid racemization (AAR) dating of shell middens and describes a simple protocol to test the suitability of different molluscan species. This protocol provides a preliminary test for the presence of an intracrystalline fraction of proteins (by bleaching experiments and subsequent heating at high temperature), checking the closed system behaviour of this fraction during diagenesis. Only species which pass both tests can be considered suitable for further studies to obtain reliable age information. This amino acid geochronological technique is also applied to midden deposits at two latitudinal extremes: Northern Scotland and the Southern Red Sea. Results obtained in this study indicate that the application of this new method of AAR dating of shells has the potential to aid the geochronological investigation of shell mounds in different areas of the world.