Obsidian Sources in the Regions of Erzurum and Kars (North‐East Turkey): New Data

The obsidian sources on the Erzurum–Kars Plateau have not been extensively surveyed, and their geochemical signatures are still poorly understood. Yet a significant number of artefacts from archaeological sites in Georgia and Armenia have produced chemical compositions that are unrelated to any Turkish or Caucasian source analysed so far. Their origins may lie in these poorly known deposits. The objective of the collaborative project undertaken by the University of Erzurum and the French mission ‘Caucasus’ is to study the sources of obsidian in the Erzurum and Kars regions, in order to shed light on the intensity of exploitation of this material, and to highlight the exchange networks that may have existed between north‐eastern Turkey and the southern Caucasus. The analyses that we have carried out on the samples taken during this exploratory survey have enabled a definite extension of the territory of circulation of this obsidian to western Transcaucasia. The lack of knowledge concerning the diffusion of obsidian from the regions of Erzurum and Kars thus appears for the moment mainly related to insufficient geochemical characterization of the sources, confirming the importance of future surveys.     

New Data on the Exploitation of Obsidian in the Southern Caucasus (Armenia,Georgia) and Eastern Turkey,Part 1: Source Characterization

A large analytical programme involving both obsidian source characterization and obsidian artefact sourcing was initiated recently within the framework of the French archaeological mission ‘Caucasus’. The results will be presented in two parts: the first part, this paper, deals with the presentation and characterization of obsidian outcrops in the southern Caucasus, while the second presents some results obtained from a selection of artefacts originating from different Armenian sites dated to between the Upper Palaeolithic and the Late Bronze Age. The same analytical method, LA–ICP–MS (laser ablation inductively coupled plasma mass spectrometry), has been used to characterize all the studied samples (both geological and archaeological). This method is more and more widely used to determine the elemental composition of obsidian artefacts, as it causes minimal damage to the studied objects. We present in this first part new geochemical analyses on geological obsidians originating from the southern Caucasus (Armenia, Georgia) and eastern Turkey. These data enhance our knowledge of the obsidian sources in these regions. A simple methodology, based on the use of three diagrams, is proposed to easily differentiate the deposits and to study the early exploitation of this material in the southern Caucasus.     

Agent-Based Simulation of Holocene Monsoon Precipitation Patterns and Hunter-Gatherer Population Dynamics in Semi-arid Environments

Based on archaeological evidence from Kutch-Saurashtra (N Gujarat, NW India), we use agent-based modelling (ABM) to explore the persistence of hunter-gatherer (HG) groups in semi-arid environments in the mid and late Holocene. Agents interact within a realistic semi-arid environment dominated by the monsoon. Precipitation trends are modelled from instrumental records (1871–2008) calibrated with existing models for the Asian monsoon in the Holocene (c. 12 ka–present). Experiments aim at exploring dependencies between population dynamics and climate-driven environmental change (in terms of resource availability) for precipitation patterns at the local, regional and continental scales. Resources are distributed across a simplified ground model. Average yearly precipitation (AYP, i.e. mean) and variance in yearly precipitation (VYP, i.e. standard deviation) are the main parameters affecting resource availability in the simulations. We assess the effects of environmental change on HG populations at different timescales: (1) patterns of seasonal (inter-annual) resource availability, (2) effects of changes in mean precipitation trends over the long (Pleistocene–Holocene) and the mid (Holocene, millennial) periods, and (3) effects of intra-annual precipitation variability, i.e. changes in standard deviation from mean precipitation trends over the short period (annual to decadal). Simulations show that (1) strong seasonality is coherent with the persistence of HG populations in India, independently of the geographical scale of the precipitation models, (2) changes in AYP over the mid period (Holocene) are not sufficient to explain the disappearance of HG populations in Kutch-Saurashtra (K-S) 4 ka and (3) precipitation variability (VYP) over the short period (annual to decadal) is the main parameter affecting population performance and overall ecosystem dynamics. To date, sufficiently refined palaeoclimatic records do not exist for the study area, but higher VYP values 4 ka do not exclude the possibility that other factors may have driven the disappearance of HG populations in Kutch-Saurashtra.     

Failed Eastern integration and a partly successful opening up to the West: the economic re-orientation of Hungary during the 1970s

The article investigates the ‘long 1970s’ (1968–82), when Hungary re-orientated its economic and foreign-trade relations. Hungary was always a promoter of a deepening of Council for Mutual Economic Assistance (CMEA) co-operation and when it noticed that socialist integration stagnated at the level of the bilateral exchange of commodities, Budapest gradually launched a policy of opening up to the world outside the CMEA. The year 1977 was a turning point in economic policy. Hungarian elites' thought and attitude towards the West changed, but not independently of the world economic crisis and its impact on Hungary. The oil crisis sharpened latent tensions, and behind the robust growth serious problems appeared. Although Hungary intensified its interrelations with the West and the Third World, the country was not able to profit from the advantages of international trade and co-operation. The article is based on state, party and senior economic leaders' archives.     

Accommodation and the politics of fiscal equalization in multinational states: The case of Canada

The politics of accommodation in multinational states sometimes features an important, yet often overlooked, fiscal dimension. In fact, the scholarly literature on the accommodation of nationalist movements emphasizes territorial autonomy, access to power and representation within central institutions, and the promotion of the state national identity, but it is virtually silent on how patterns of territorial fiscal redistribution, and more specifically programs of horizontal fiscal equalization, may contribute to accommodating sub‐state nationalism. This article looks at the Canadian case and analyses the multidimensional relationship between equalization policy and Québécois nationalism. It explains how a key motivation behind the creation of Canada's fiscal equalization program in 1957 was to “end” the institutional and political isolation of Québec and how equalization may have, thereafter, contributed to making Québec's secession less appealing to a good number of Quebeckers than it would have been in the absence of this program. Simultaneously, the article discusses how equalization may have contributed to a certain political backlash against Québec in the other provinces, thus providing mixed evidence in the assessment of the accommodation potential of equalization policy.     

Seismic Design Issue of Corner Slab-Column Connection

Design criteria of slab-column connections in the ACI Building Code [2011] were mostly developed from experimental results of interior connections. When dealing with corner slab-column connections, supplementary documents published by ACI Committee 352 and Committee 421 provide better explanations than the ACI Building Code [2011] and become useful references for practical engineers. However, different design values can be obtained using approaches recommended by different documents. In this article, a summary of this issue is presented. Among several design parameters discussed in this article, bi-axial moment, gravity shear ratio and column rectangularity have more significant effect to enlarge the discrepancy.     

Global Patterns in the Exploitation of Shellfish

ABSTRACT

Shellfish are a crucial resource for past and present subsistence-level societies around the world. Despite the diversity of environments in which shellfish are exploited, an examination of the global patterns of shellfish exploitation reveal surprisingly common patterns in the opportunities allowed and constraints imposed by relying on shellfish. These commonalities, linked to the fundamental features of shellfish and their exploitation, can illuminate diverse social and ecological factors likely to influence variability in their archaeological signatures. Here we review contributions to this special issue and explore common trends in shellfish use and its archaeological consequences.