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161.
The emergence of mining reflects profound changes in the organization of late prehistoric societies. In terms of lithic and ore mining, salt is a highly strategic mineral resource which was exploited for its dietary and healing properties. The exceptional prehistoric salt mine of Duzda?i (Nakhchivan, Azerbaijan) is located in a high salt-bearing region centered on the Aras River in the Lesser Caucasus. Field survey, spatial recording of archaeological materials and use-wear analysis of macrolithic tools have allowed us to outline the mining operations and techniques there from the Chalcolithic period onwards. We have identified workshops for the manufacture and repair of tools, as well as salt extraction and processing areas.  相似文献   
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New field and laboratory work has been carried out on two vitrified forts, Rhubh Aird Ghamhsgail near Arisaig and The Torr near Acharacle. Fieldwork confirms that both are constructed from rubble largely comprising local psammitic Moine Supergroup rocks and that their walls are relatively well preserved with large portions of vitrified material remain, particularly at The Torr, where remnants of up to four courses of stone facing occur. The preserved wall fills comprise mostly psammitic rubble set in a dark brown, vesicular, glassy to aphanitic matrix that in many places preserves evidence of downward flow. Conventionally, vitrification is explained through combustion of timber interlacing within the walls leading to melting that has been modelled in the granite system. However, considering Iron Age smelting technology, this leads to problems in obtaining high temperatures (≥1000 °C) over tens of metres of wall length. Geochemical analysis of the vitrification indicates that modelling the melting within the granite system is incapable of providing a partial melt matching the composition of vitrification. At The Torr, pelite fragments have been found near the base of the wall where partial melt occurs as black bubbles. In these fragments it appears that micas (largely biotite) have formed the melt via the reaction biotite + quartz = sanidine + orthopyroxene + liquid which takes place at temperatures c. 850 °C. Quench crystals in the melt include orthopyroxene, plagioclase, spinels, ilmenite, magnetite, anatase and apatite confirming that it was not a granite melt. These melted fragments are found next to material with biotite that, superficially, appears unmelted, suggesting that some of the heating took place perhaps away from the edifice and unmelted residue was utilised as part of the rubble fill, suggesting that in situ partial melting of the rubble is unlikely. However, in other parts of the edifice heat affected, yet unmelted, fragments are dominant. The new evidence indicates that vitrification occurred at lower temperatures than previously modelled and thus the melts could have been achieved more easily than previously thought.  相似文献   
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Abstract: In this article, we analyse the experience of securitization from the perspective of Arab–American and British Arab activists. Based on interviews with over 100 activists in both countries, we explore the ways in which Arab immigrant communities have experienced the enhanced security measures taken by governments. Our respondents describe the ways in which these measures have increased feelings of fear and insecurity within their communities. They emphasized how immigration, border and surveillance technologies lent a pervasive sense of insecurity to daily life. At the same time, they argued for the importance of the legal rights of citizenship in anchoring a sense of security in and belonging to British and American society.  相似文献   
166.
This reconstruction of grinding, pounding, hammering and abrading activities in the Early Neolithic of north-western Europe (Linearbandkeramik and Villeneuve-Saint-Germain cultures, 5100–4700 BC) is based on the study of 1289 sandstone tools from 17 sites located in the main Paris basin river valleys (Aisne, Eure, Marne, Oise, Seine, Yonne). An original method of functional identification was elaborated, relying on observation of use-wear with a stereoscopic microscope (under120×). Identification of traces of use relied on an experimental referential of 92 samples. These include (1) grinding cereals, (2) pounding temper, colourants and various plants, (3) shaping mineral, vegetal and animal objects by polishing (schist, limestones, bone, antler, wood), (4) softening skin. A significant observation concerns the use of small handstones for grain dehusking and larger handstones for grain grinding. Recycling is a widespread feature, with multipurpose handstones and frequent reuse of lower grinding tools for obtaining colourants. A change in the function of tools can also be observed between the Linearbandkeramik and the Villeneuve-Saint-Germain.  相似文献   
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In the same burial ground in use from the late eleventh to thirteenth century one male and one female dwarf were buried, only 1 m from each other. They were buried in the same way and with the same kind of grave goods as the others buried around them. The medical and osteological investigations of the skeletons show that the two individuals suffered from a very rare congenital malformation that made them dwarves: spondylo-epiphyseal dysplasia congenita with mild coxa vara. A search of the palaeopathological literature has not revealed any other such cases. Because this disease is extremely rare, it is very likely that the two dwarves were closely related.  相似文献   
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Much research on the relationship between migration and fertility has centred on the impacts of migration on child-bearing behaviour. This paper reverses this traditional orientation by examining one way in which fertility behaviour, embedded within a patrilineal society, may influence the migration opportunities of married women. The paper begins by discussing issues relating to gender and migration before outlining previously defined models of the migration fertility relationship. One of these models, selection, is used as the basis for further discussion. The context of migration, fertility and selection in terms of gender issues and sex preference patterns in China is presented. Using fertility and migration histories from a survey of a migration population in Beijing, China, to examine women's mobility patterns this paper suggests that the sex of a child can act as a selection factor in the migration of married women. Sex preferences exhibited by the survey respondents are outlined. The implications for migration and household studies are discussed.  相似文献   
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