New insights into the spatial organization, stratigraphy and human occupations of the Aceramic Neolithic at Ganj Dareh, Iran

The Aceramic Neolithic site of Ganj Dareh (Kermanshah, Iran) is arguably one of the most significant sites for enhancing our understanding of goat domestication and the onset of sedentism. Despite its central importance, it has proven difficult to obtain contextually reliable data from it and integrate the site in regional syntheses because it was never published in full after excavations ceased in 1974. This paper presents the Ganj Dareh archive at Université de Montréal and shows how the documentation and artifacts it comprises still offer a great deal of useful information about the site. In particular, we 1) present the first stratigraphic profile for the site, which reveals a more complex depositional history than Smith’s five-level sequence; 2) reveal the presence of two possible pre-agricultural levels (H-01 and P-01); 3) explore the spatial organization of different levels; 4) explain possible discrepancies in the radiocarbon dates from the site; 5) show some differences in lithic technological organization in levels H-01 and P-01 suggestive of higher degrees of residential mobility than subsequent phases of occupation at the site; and 6) reanalyze the burial data to broaden our understanding of Aceramic Neolithic mortuary practices in the Zagros. These data help refine our understanding of Ganj Dareh’s depositional and occupational history and recenter it as a key site to improve our understanding the Neolithization process in the Middle East.

Pachuca Obsidian Blades from the U.S. Southwest: Implications for Mesoamerican Connections and Coronado's Mexican Indian Allies

The connection between people in the prehispanic U.S. Southwest / Northwest Mexico (SW/NW) and Mesoamerica is one of the most debated research topics in American archaeology. SW/NW groups used objects from Mesoamerica, but did they also trade for obsidian? Archaeologists have yet to find Mesoamerican obsidian from confirmed prehispanic SW/NW contexts, but here we discuss four green obsidian prismatic blades from New Mexico and Arizona. Using EDXRF spectrometry, we demonstrate that the blades are from the Pachuca source in Mesoamerica. The blades were found at four sites that the Spanish and their Mexican Indian allies used or potentially visited beginning in AD 1540. Using lithic technological organization and historical narratives, we assess the credibility of the different hypothesized models of prehispanic SW/NW-Mesoamerican interaction and obsidian use by the Mexican Indian allies. We suggest that green Pachuca blades would have been traded into the SW/NW if interaction with Mesoamerica had occurred more frequently. We also offer reasons why archaeologists have found so few Mesoamerican obsidian blades at post-1540 sites. This research is relevant because it expands our knowledge about SW/NW-Mesoamerican connections and the Mexican Indian allies of the Spanish, who are an underrepresented group in the archaeological and historical records.

Technology to ensure impermeability in fixed split metal joints according to two-stage circuit of design-technological pre-production

A technology for the solution of the problem in ensuring impermeability of fixed split metal joints at two-stage circuit of the design-technological organization in pre-production is carried out. The technology for impermeability support is based on the defined theoretical and empirical dependences of impermeability upon design factors and quality of sealing surfaces; upon table data obtained on potentialities of the processing methods in quality parameter assurance of the surfaces in sealing joints made of corrosion-resistance 08H18H10T steel, and also obtained empirical dependences of surface layer quality parameters upon processing modes.

Book review: The prehistoric apprentice: Investigating apprenticeship, know-how and expertise in prehistoric technologies; L’apprenti préhistorique: Appréhender l’apprentissage, les savoir-faire et l’expertise à travers les productions techniques des soci

Describing cultural change and variability and inferring sociocultural dynamics about past people and communities may be among archaeology’s main goals as a field of practice. In this regard, the concept of skill has proved its usefulness to, time and again, expand the breath of archaeologists and lithic technologists’ analyses. It covers a wide range of applications, from apprenticeship, cognition, paleo-sociology, spatial organization. It is one of the main causes for material culture variability, up there with raw material constraints, design, technological organization or cultural norms. Yet, while skill has certainly been the focus of some research in the last decades, it remains quite peripheral, when considering how central the concept should be to technological inquiries. Whatever the reasons may be, this book, edited by Laurent Klaric and fully bilingual (French and English), aims at changing that, and argues for skill to become a central concern in lithic technology. Its chapters do so strongly and the end-result is a book that should become a reference for lithic technologists, whatever their research interests or schools of thought may be.

Rationalization of gathering information about passenger traffic on routes

Meeting the challenges of implementing sustainable transport planning and technological organization of transportations requires knowledge of information about the demand for travel. This information is not collected to current statistical accounting system. This article examines matters relating to the application of information technology to obtain the inter–district transport correspondences and data about the needs of passengers to travel on existing routes. The article provides an analysis of the methods of reducing the volume of correspondences of transport surveys on the routes. Purpose of the article - Using these methods allows you to reduce the costs of monitoring information about passenger traffic.