Multi‐analytical Studies of the Lime Mortars from the Yanxi Hall in the Yangxin Palace of the Palace Museum (Beijing)

For centuries, the architecture of the Palace Museum represented the highest standard of Chinese architecture. The Yangxin Palace of the Palace Museum consisted of 18 masonry buildings built using bricks, wood, roof tiles and various mortars. In 2016, a five‐year project was initiated to work on the maintenance and restoration of the Yangxin Palace buildings. The characterization of the construction materials has become of primary importance, in order to obtain information about the raw ingredients and building technology of the mortars, and the history of possible previous restorations. In this paper, 12 different samples representing three types of mortar‐based materials—namely, jointing mortars between the bricks on the wall, and surface plasters as well as mortars used on the roof—were collected for analysis from the Yanxi Hall of the Yangxin Palace. Analysis into the composition, grain‐size distribution, organic and fibre additives and testing of the mortar density and water absorption were performed. Starch, protein and plant fibres were identified in some of the samples. Brucite, mullite and ettringite were detected within most mortars on the roof, possibly originating from the furnace slag added into the raw materials for restoration purposes. The analytical results will serve as a critical reference for the maintenance and restoration of the buildings in the Yangxin Palace.     

Late Pleistocene Lithic Procurement and Geochemical Characterization of the Cerro Kaskio Obsidian Source in South‐western Bolivia

Primary questions regarding the foraging behaviour of the first hunter–gatherers who colonized the New World are how they found, procured and utilized high‐quality raw materials for manufacturing stone tools. In this paper, we present evidence from the late Pleistocene site of Cueva Bautista in the highlands of south‐western Bolivia, which demonstrates that a substantial portion of the recovered stone tool assemblage originated in Cerro Kaskio, a recently discovered obsidian source located 15 km south‐west of the site. In addition to describing the geological and geochronological setting, we provide the first geochemical characterization of the Cerro Kaskio source by means of instrumental neutron activation analysis and energy‐dispersive X‐ray fluorescence. Supported on the technological analysis and archaeometric sourcing of the obsidian lithics found in Cueva Bautista, we discuss the nature of the procurement strategies practised by the earliest mobile hunter–gatherers who explored and colonized the Andean highlands. We conclude that opportunistic lithic resource procurement was probably an important component of the first foraging societies that explored the highland Andes.     

Identifying a technological style in the making of lime plasters at Teopancazco (Teotihuacan,México)

The aim of this article is to focus on the technology of archeological plasters at Teotihuacan (Central Mexico), from the Classic Period (200–650 A.D.), focusing in the study of Teopancazco, a neighborhood center in the city. Petrographic and chemical analyses by OM, SEM-EDS, and LA-ICP-MS were conducted to characterize samples from different constructive phases and sectors of the neighborhood center, to determine the provenance of the raw materials employed in the manufacturing (e.g., volcanic glass shards) and to assess whether a shift occurred in the manufacturing of plasters and in the procurement strategies of raw materials during the different phases. The results of the analyses show that almost no changes occurred in the making of the plaster during more than four centuries and allow us to consider the presence of a technological style in their manufacture, which is characterized by the making of plaster by mixing lime with volcanic glass shards, which in the case of Teopancazco were derived from the Altotonga (Veracruz) magmatic system. The data at our disposal suggest that this style was developed in Teopancazco and later introduced throughout the city of Teotihuacan in the Early Xolalpan phase (A.D. 350), although we still do not know whether the provenance of the raw materials is the same. The wide distribution of this technological tradition could be due to the technological properties of the materials and/or the influence of the intermediate elite who ruled over Teopancazco. The paper confirms that the study of material culture and technology sheds light on broader cultural aspects of ancient societies.     

The Origin of the use of the Tin‐Glazed Earthenware Technique in the Production of the French Medieval Pavement of Suscinio

The medieval pavement found in its original state and place at the Breton castle of Suscinio is an interesting case study for answering questions about the origin of the tin‐glazed earthenware technique in France. Twenty‐eight decorated tiles (with transparent and tin‐opacified glazes) and eight clayey raw materials were examined using chemical and microstructural approaches involving petrographic, SEM–EDS and XRD analyses. By combining the results of provenance and technological studies with historical and archaeological data, it was possible to conclude that the pavement was a local product, made with imported technological skills, rather than an imported product or the result of local experimentation.     

Continuity and change in fine-ware production in the eastern Maya lowlands during the Classic to Postclassic transition (<Emphasis Type="SmallCaps">ad</Emphasis> 800–1250)

This study presents the results of an investigation into fine-ware production in the eastern Maya lowlands during the Classic to Postclassic transition (ca. ad 800–1250), a period characterised by the collapse of the Maya dynastic tradition. A selection of fine-ware ceramics—Ahk’utu’ vases and Zakpah ceramics—from various sites across Belize was examined by thin-section petrography and SEM-EDS analyses. The resultant compositional and technological data reveal that fine-ware production exhibited varying degrees of continuity and change in potters’ choices of raw materials and manufacturing technologies. The most significant change occurred in craft organisation. Fine-ware production shifted from the co-existence of two ceramic traditions, which guided potters regarding the raw materials used and technical practices followed in making Ahk’utu’ vases during the earlier phase of transition (ca. ad 800–900/950), to the dominance of one broad tradition with greater liberty accorded producers in their execution of Zakpah fine-ware production during the later phase (ca. ad 950/1000–1200/1250). Such a shift is argued to have been stimulated by a change and increase in the demands for fine-ware ceramics during the later phase of the transition, corresponding to the emergence and proliferation of a new elite stratum in the Maya lowlands.     

Ceramics and change: an overview of pottery production techniques in northern South Africa and eastern Zimbabwe during the first and second millennium AD

In southern African Iron Age studies, there are few attempts to systematically apply and include laboratory analyses when studying archaeological ceramic materials. As demonstrated in this paper, such analyses help to understand the technological aspects such as raw materials, manufacturing techniques and vessel function. Combined with vessel shape and decoration as well as ethnographic studies, the results provide new ways to understand local and regional distribution networks of the ceramics craft. Furthermore, laboratory analyses are most useful when studying continuity and changes in the ceramics handicraft over time, which has implications both on cultural and social change as seen in the shift in ceramic production techniques. We use examples from Zimbabwe and South Africa to illustrate these changes and discuss them in a broader social and technological context in Iron Age southern Africa.     

Upper Paleolithic raw material economies at Üçağızlı cave, Turkey

This paper addresses variation in lithic raw material economy within the early Upper Paleolithic at Üçağızlı cave (south-central Turkey). The stratigraphic sequence documents some 12,000 years of the early Upper Paleolithic, entailing changes in lithic technology, raw material exploitation, and game use. Although the same lithic raw materials were exploited throughout the sequence to make quite similar ranges of products, there are marked changes in the ways raw materials from different source areas were treated, including patterns of transport and raw material consumption. The concept of technological provisioning is used to understand changing strategies for procuring and managing supplies of flint from different source locations. Shifts in raw material economy are argued to represent responses to changes in residential mobility and the scale/duration of occupations at the cave itself: data on cultural features and foraging strategies provide independent evidence for these shifts in land use. Results have implications for more nuanced approaches to investigating of lithic raw material economies and the significance of “raw material transfers.”     

In the Nature of the Non‐City: Expanded Infrastructural Networks and the Political Ecology of Planetary Urbanisation

This paper proposes extending Urban Political Ecology's (UPE) ideas about the urbanisation of nature in order to include the geographical imprints of expanding, global metabolic flows of matter, energy and capital. It does so through the analysis of Huasco, a small agricultural village in northern Chile that has been overburdened with massive energy undertakings aimed at powering the operations of mines that supply raw materials to international markets. Like the sewage and technological networks that feed the life of cities, the paper argues that Huasco—as a metabolic vehicle of planetary urbanisation—has also been hidden from view, and thus the fetishisation of urban infrastructural networks initially theorised by UPE, has been ratcheted‐up to the global level by the mediating powers of neoliberalising capitalism. Just as the socio‐material arrangements that facilitate the smooth functioning of the modern city and household are riddled with glitches and exclusions, the paper suggests that globally up‐scaled infrastructures reveal even larger contradictions that put into jeopardy the very premises upon which the ongoing commodification of nature is grounded.     

THE CHALLENGE OF ‘TECHNOLOGICAL CHOICES’FOR MATERIALS SCIENCE APPROACHES IN ARCHAEOLOGY*

Recently several anthropological and sociological studies have interpreted technologies as cultural choices that are determined as much by local perceptions and the social context fly any material constraints or purely functional criteria. Using the example of ceramic technology we consider how materials science studies can contribute to and benefit from this understanding of technology as a social construct. Although we acknowledge some potential difficulties, it is our contention that both materials scientists and archaeologists have gained much and have much to gain by cooperating together to study ancient technologies, and that the concept of ‘technological choices’can facilitate a wider consideration of the factors shaping technological developments.     

First Geochemical ‘Fingerprinting’ of Balkan and Prut Flint from Palaeolithic Romania: Potentials,Limitations and Future Directions

Long‐distance raw material transfers across Romania prior to the Last Glacial Maximum have previously been inferred from either visual and/or petrographic observations of East Carpathian sites. We investigated the potential to ‘fingerprint’ flint from archaeological sites at Mitoc‐Malu Galben and Bistricioara–Lut?rie III in Eastern Romania, using in situ high‐precision analyses of 28 major, minor and trace elements determined by laser ablation – inductively coupled plasma – mass spectrometry (LA–ICP–MS) in combination with multivariate statistical analysis. Our results suggest that geochemical analyses have the ability to distinguish between different geographical sources but are unable to positively associate flint artefacts from archaeological contexts to these geochemical groups. The mismatches of signatures between artefacts and geological materials, however, raise new questions and open unforeseen perspectives.     

Integrated geological,petrologic and geochemical approach to establish source material and technology of Late Cypriot Bronze Age Plain White ware ceramics

Late Cypriot Bronze Age Plain White Wheelmade ware samples from several Cypriot excavation sites and the northern Canaanite coast were studied to ascertain their production centres and details of their manufacturing processes and post-depositional alteration. The investigation of the ceramics, using combined geoscientific analytical techniques (XRF, ICP-MS, XRD and EPMA) allowed four groups of pottery to be distinguished based on their common raw-material sources and/or technological analogies. Sediments that were sampled in East Cyprus (eastern Mesaoria Plain) for comparative purposes indicated that most of the investigated ceramics were produced from raw materials available around the ancient settlement of Enkomi. Appraising technological variations and discriminative raw-material characteristics, several pottery producing workshops in ancient Enkomi (Eastern Cypriot coast) have been identified that merchandised their commodities on Cyprus and, in all probability, also overseas.     

Mineralogical and Chemical Constraints on the Provenance of Copper Age Polished Stone Axes of ‘Ljubljana Type’ from Caput Adriae

In this paper we show the results of a study concerning 42 axes, mainly discovered in the Copper Age pile dwellings of Ljubljansko barje (central Slovenia) and in the neighbouring areas of Caput Adriae. The studied shaft‐hole axes, characterized by homogeneous typology but slightly different raw materials, have been called ‘Ljubljana‐type’ axes (Lt). The raw materials show a common OIB‐like signature and metamorphic and spilitization features that recall oceanic conditions. The typological and geochemical characteristics and the very high percentage of Lt axes among the polished stone axe assemblages of Ljubljansko barje suggest that the raw material was probably gathered from one or more relatively small outcrops close to Ljubljansko barje. Similar igneous rock types outcrop in the presumably Palaeozoic diabase/shale complex (Eisenkappler Diabaszug), intruded by the northern Karawanken plutonic belt. A probable provenance from this area, particularly rich in copper ore deposit, would confirm the important role of Ljubljansko barje as a metallurgical district, as well as a strong relation between lithic raw materials and Cu cultivation districts during the Copper age.     

CLAY RESOURCES AND TECHNICAL CHOICES FOR NEOLITHIC POTTERY (CHALAIN,JURA, FRANCE): CHEMICAL,MINERALOGICAL AND GRAIN‐SIZE ANALYSES*

Many authors have considered pottery manufacturing constraints and sociocultural elements as factors in change in past civilizations over time. The main issue of this research is to better understand the reasons for changes, or choices, in pottery raw materials. The very precise and detailed stratigraphy and cultural succession of occupations is based on dendrochronological data from the lake‐dwelling sites of Chalain (Jura, France). Petrographic, palaeontological and chemical analyses were used to determine the nature and origins of the raw materials used by the Neolithic potters. Stratigraphy and dendrochronological data were used to reconstruct in detail the evolution dynamics of fabric changes. Several raw material sources were identified for many of the pottery groups. Each of them was sampled for qualitative experimental tests of pottery forming. The experimental results show a high variability between the sediments tested. This variability was quantitatively estimated by XRF, XRD, the Rietveld method, calcium carbonate quantification and laser grain‐size analyses of matrices, indirect measures of plasticity. These analytical results allow a better understanding of the differences observed in the experimental tests. On the basis of these experimental and analytical results, changing parameters such as pottery manufacturing constraints, mineralogical characteristics of raw materials and sociocultural factors are considered. In conclusion, all the social and technical parameters, in each archaeological context, must be taken into account for a better understanding of the changes occurring throughout the chronological sequence.     

Raw material economy in Salento (Apulia, Italy): new perspectives on Neanderthal mobility patterns

This paper presents a case study that questions the behavioral model of a “non-modern” provisioning of raw materials by Neanderthals. The Salento is a peninsula in south eastern Italy rich in Mousterian sites and Neanderthal remains. This region is particularly suitable for raw material economy studies, for its peninsular status and the scarceness of good raw materials. Surveys made in 2006 showed the pattern of utilization of different local raw materials (limestone, siliceous limestone) and the absence of good quality raw materials, that are present in archaeological record. A very long distance provisioning is supposed to be at the origin of their presence in Mousterian Salento sites.     

A COMBINED MULTI‐ANALYTICAL APPROACH FOR THE STUDY OF ROMAN GLASS FROM SOUTH‐WEST IBERIA: SYNCHROTRON μ‐XRF,EXTERNAL‐PIXE/PIGE AND BSEM–EDS

An integrated, multi‐analytical approach combining the high sensitivity of SR‐μXRF, the light element capability of PIXE/PIGE under a helium flux and the spatial resolution of BSEM + EDS was used to characterize chemical composition and corrosion of glass samples (first to fourth centuries ad ) from an important, but scarcely investigated, Roman region of south‐west Iberia (southern Portugal). The geochemical trends and associations of major, minor and trace elements were investigated to shed light on production techniques, the provenance of raw materials and decay mechanisms. The results, while confirming a production technique common to Roman glasses throughout the Empire—that is, a silica‐soda‐lime low‐Mg, low‐K composition, with glass additives as colouring and/or decolouring agents (Fe, Cu, Mn, Sb)—show at one site high Zr–Ti contents, suggesting a more precise dating for these glasses to the second half of the fourth century. The Ti–Fe–Zr–Nb geochemical correlations in the pristine glass indicate the presence of minerals such as ilmenite, zircon, Ti‐rich Fe oxides and columbite in the sands used as raw materials for the glass former: these minerals are typical of granitic‐type source rocks. The unusually high K content in the corrosion layers is consistent with burial conditions in K‐rich soils derived from the alteration of 2:1 clays in K‐bearing rock sequences.     

Millet and sauce: The uses and functions of querns among the Minyanka (Mali)

The central role of grinding activities in the dietary practices of traditional agricultural populations can be approached from an ethnoarchaeological point of view. The comparison of ethnographic references raises the question whether the function and the socioeconomic context in which grinding slabs are used allow to assess issues related to conclusions drawn from archaeological contexts. Our discussion is based on the analysis of the manufacturing of grinding slabs, their use cycles and their social status in several Minyanka villages (Mali), providing useful references when examining the way in which archaeologists explain and interpret technological, functional and spatial observations. The typological and technical evolution and variability of querns results from a combination of several factors determined by the available raw materials, the skill of shaping techniques, the organisation of manufacturing and the transference of the function of grinding tools. But these factors alone cannot explain the encountered range of variation. Our study thus emphasises the very role of cultural aspects within these temporal and regional developments, and the impossibility of dissociating the use of a quern from its socio-economic context.     

INCISED SLIPWARE PRODUCTION AT CASTELFIORENTINO (FLORENCE): THE ‘VIA BERTINI’ SITE (15TH–17TH CENTURIES)*

This study deals with the physical–chemical and mineralogical–petrographic investigations (OM, SEM–EDS, EPMA, ICP, XRpD, Mössbauer and IR) conducted on first‐ and second‐firing wasters belonging to two types of incised slipware (sgraffito), manufactured at Castelfiorentino between the late 15th and the early 17th centuries. Raw materials, colouring agents and firing products were analysed in order to establish the production technology of the ceramic coatings, by means of detailed microtextural and chemical investigations. The pottery underwent two firing processes: the firing of the white slip‐coated ceramic body and a further firing after application of the glaze. The homogeneity of the raw materials, white slip and glaze is remarkable, and demonstrates the use of well‐established recipes with a constant supply of raw materials from the same places. Highly efficient kiln management during both firings is revealed by body–glaze interface reactions.     

阳山碑材新论

阳山碑材为南京的明代重要物胜迹,本就其规模尺寸,开凿时间、弃之不用的原因及相关问题作了探讨。     

Privatization in Bangladesh: The Emergence of ‘Family Capitalism’

The programme of state enterprise privatization pursued by the government of Bangladesh since 1975, largely under the influence and financial conditions of the aid agencies, has been subject to widespread debate. In 1991, at the suggestion of the World Bank, the government of Bangladesh formed the Privatization Board to ensure better outcomes of privatization. This article investigates whether firms privatized under the auspices of the Privatization Board up to 1996 were adding to the nation's economic growth or — as critics claimed — to individual families’ pockets. More specifically, it examines whether enterprises privatized in 1991–6 reversed previous losses and introduced better management controls, leading to increased investment, productivity, and overall organizational effectiveness and efficiency. The major findings are not supportive of privatization policy, indicating that the performance of privatized enterprises has not improved significantly. Without denying the economic problems of Bangladesh's public enterprises, past and present, this article questions the performance of privatized companies in terms of their declining profitability and productivity; employment conditions and trade union and individual rights; altered distributions of value added in absolute and relative terms; and serious lack of financial transparency and accountability.     

‘I Saw a Nightmare . . .’: Violence and the Construction of Memory (Soweto,June 16, 1976)

The protests on June 16, 1976 of black schoolchildren in Soweto against the imposition of Afrikaans as a medium of instruction in their schools precipitated one of the most pro‐found challenges to the South African apartheid state. These events were experienced in a context of violent social and political conflict. They were almost immediately drawn into a discourse that discredited and silenced them, manipulating meaning for ideological and political reasons with little regard for how language and its absence—silences—further violated those who had experienced the events. Violence, in its physical and discursive shape, forged individual memories that remain torn with pain, anger, distrust, and open questions; collective memories that left few spaces for ambiguity; and official or public histories tarnished by their political agendas or the very structures—and sources—that produced them. Based on oral histories and historical documents, this article discusses the collusion of violence and silence and its consequences. It argues that—while the collusion between violence and silence might appear to disrupt or, worse, destroy the ability of individuals to think historically—the individual historical actor can and does have the will to contest and engage with collective memory and official history.