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This paper presents new 500 year interval palaeogeographic models for Britain, Ireland and the North West French coast from 11000 cal. BP to present. These models are used to calculate the varying rates of inundation for different geographical zones over the study period. This allows for consideration of the differential impact that Holocene sea-level rise had across space and time, and on past societies. In turn, consideration of the limitations of the models helps to foreground profitable areas for future research.  相似文献   
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Stable isotope analysis of charred archaeobotanical cereal grains has the potential to provide direct evidence of crop growing conditions in the past and to refine palaeodietary predictions. If isotope values of archaeobotanical material are to be considered robust, it is necessary to characterise the compositional changes associated with their charring and burial. This study used a suite of analytical techniques, including FT-IR and solid state 13C NMR, to characterise changes in the biochemical composition of modern einkorn grains with heating at 230 °C for 2 h, 4 h, 8 h and 24 h, encompassing conditions that replicate their undistorted ancient counterparts. The biochemical composition of archaeobotanical charred einkorn grains was also investigated by FT-IR and solid state 13C NMR in order to assess the changes in composition which occur during burial. Results of FT-IR and solid-state 13C NMR show that heating of modern einkorn grains resulted in Maillard reactions between cereal proteins and starch, forming high molecular weight melanoidins, which contain both alkyl and aromatic carbon. Loss of low molecular weight carbon and nitrogen-containing volatiles resulted in a slight but non-systematic increase in the δ13C values and a systematic increase of 0.8‰ in the δ15N values of the charred einkorn grains. Solid-state 13C NMR shows that the ancient charred einkorn grains consisted entirely of aromatic carbon and retained a similar proportion of nitrogen to their modern 24 h charred counterparts, despite a significantly lower concentration of amino acids. This indicates that the amino acid nitrogen in the ancient charred grains was retained in the stable melanoidins whose polymeric structure makes them resistant to subsequent degradation.  相似文献   
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This paper presents new information from funerary contexts in the lower Ica Valley, on the south coast of Peru, spanning two millennia from the end of the Early Horizon to the Late Intermediate Period. Although severely looted, these sites can still yield valuable information. We discuss their architecture and material culture in the context of radiocarbon dates. Among other findings, these cast new light on the poorly understood transition from the Middle Horizon to the Late Intermediate Period, for which a paucity of archaeological data from ca. a.d. 1000–1250 has long been taken as evidence of an environmentally- or socially-induced demographic collapse. Yet the data we present here suggest that the basins of the lower Ica Valley were likely occupied continuously over this period, and that the echoes of Wari influence here may have lasted longer than previously thought.  相似文献   
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Sabri Louatah’s Les Sauvages (2011–2016) joins an ongoing discussion over the French political class’s relationship with the racial and religious divides in contemporary French society. Louatah portrays the political class as imposing from above a divide between French descendants of Muslim immigrants and their majority-culture compatriots, and suggests that the functioning of the modern state makes this necessary: states are founded upon communities of belonging which require the exclusion of given minorities, and will reimpose that exclusion with force if a more inclusive model of community threatens to emerge. Two readings of how Les Sauvages suggests we should respond to this are possible. One suggests that subjects should reject the state entirely, seeking to form inclusive communities escaping its control. Another suggests that the structures of the modern state should be appropriated to promote inclusion, but that the nature of modern democracy will prevent such action from succeeding completely; as such, traditional political engagement must work in conjunction with more radical attempts to form communities free from exclusion. Both readings, however, hold in common the idea that racial and religious divides are imposed from above and that these divides cannot be completely overcome while working within mainstream political structures.  相似文献   
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Little is known of hard-rock coastal landsliding in Scotland. We identify 128 individual coastal landslides or landslide complexes >50 m wide along the coasts of Shetland. Most are apparently translational slides characterized by headscarps, displaced blocks and/or debris runout, but 13 deep-seated failures with tension cracks up to 200 m inland from cliff crests were also identified. Thirty-one sites exhibit evidence of at least localized recent activity. Landslide distribution is primarily determined by the distribution of coastal cliffs >30 m high, and they are preferentially developed on metasedimentary rocks. Analysis of 16 landslides on Fetlar (NE Shetland) indicates that most are translational dip-slip failures; 3 represent deep-seated failures and several exhibit active frontal erosion attributable to basal sapping by storm waves. As these landslides terminate in shallow water, failure was probably initiated when rising sea level resulted in footslope erosion and upslope propagation of instability, causing downslope displacement of landslide blocks on upper slopes. 10Be exposure dating of two headscarps yielded ages of 4.8?±?0.2 ka and 4.4?±?0.2 ka, consistent with the onset of footslope erosion as sea level rose. Our results suggest that landslides have played a hitherto undocumented but important role in retreat of cliffed coastlines in Scotland.  相似文献   
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This is a paper about blurring the boundaries between people, land and water in the past and of appreciating the importance of the wider environment in our accounts of prehistory. Maritime approaches to time/space are shown to offer new ways of looking at how people engage with the world around them. Informed by these approaches, and building on Lefebvre’s concepts of lived space and rhythm, current tensions within archaeology between cartesian and phenomenological approaches to the past will be shown to be unconstructive. These issues are all addressed in relation the late Mesolithic and early Neolithic of the East Anglian Fenland. Here a rhythmical, maritime approach will be shown to offer us a subtly different view of life during this period.  相似文献   
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