The age of the subfossil trunk horizon in deposits of the Warta River valley (central Poland) based on <Superscript>14</Superscript>C dating

The present study focuses on investigations carried out in the Late Vistulian succession of the Warta River deposits (central Poland) in which a horizon of subfossil trees was excavated. Prelim-inary conclusions on time record and past environmental conditions of a forest existence determined from radiocarbon dating, pollen analyses and geological evidence appear promising with view of tree-ring chronologies.     

Elucidating post-harvest practices involved in the processing of algarrobo (<Emphasis Type="Italic">Prosopis</Emphasis> spp.) for food at El Shincal Inka site (Northwest Argentina): an experimental approach based on charred remains

It is known from previous studies that qualitative and quantitative morphological attributes of food products and residues may permit the identification of different food processing activities in desiccated algarrobo (Prosopis chilensis and Prosopis flexuosa) remains. Experimental approaches are used here in order to (1) evaluate if those diagnostic features persist even after charring and (2) to use these results as a means of interpreting types of processing from archaeobotanical contexts of the Inka site of El Shincal. Experimentation was made on the basis of traditional practices which were registered during previous ethnobotanical work in the area. Diagnostic patterns of Prosopis flours and patay (bread), as well as of añapa/aloja (fresh and alcoholic beverages, respectively) and arrope (syrup) residues were stipulated for charred remains. In the specific case of El Shincal, specimens derived from flour manufacture (unrefined and refined) and añapa/aloja residues were recognized from different buildings. This must have implied a special organization of the production and the people working on that, in the sense of post-harvest intensification.     

Investigating the role of food processing in human evolution: a niche construction approach

While it is generally agreed that food processing has had a role in human evolution, the specific ways that is has affected our evolution are not well understood. Using a Niche Construction Theory (NCT) perspective, coupled with methodologies borrowed from “post-harvest” research in the plant sciences, this paper investigates the means and mechanism by which food processing is of evolutionary consequence. The central tenet of NCT is that organisms have an active role in their own evolution through reciprocal interactions with their environments; niche construction is understood to occur when organisms initiate long-term changes to their environments that modify the selection pressures on themselves and their descendants (and on other organisms in the environment). Humans and our hominin ancestors are considered to be the ultimate niche constructors due to our ability to modify selection pressures through diverse culturally generated and transmitted cultural means, i.e. cultural niche construction. In this paper, post-harvest methods are used to identify how food processing could feasibly have permitted hominins to modify their evolutionary selection pressures. Food processing is shown to facilitate access to increasing amounts of digestible nutrients and energy (kilocalories/kilojoules) as well as promoting increased dietary breadth and making possible the production of safer and more stable foods. It is argued that these advancements catalysed related technological and ecological skills and knowledge, which together with the nutritional benefits, further triggered changes in hominin brain and body and locomotory adaptations and increased longevity, disease prevention and juvenile survival rates.     

Staple or famine food?: ethnographic and archaeological approaches to nut processing in East Asian prehistory

Recent archaeobotanical studies in East Asia show that the use of wild food plants, particularly nuts, was important for not only hunter–gatherers but also early farmers. For example, recent archaeobotanical work has identified large quantities of nut remains from early Chinese rice farming sites dating 5,000–4,500 BC. In Japan, which introduced rice farming from China around 1,000–500 BC, archaeobotanical data have shown continued exploitation of nuts even after the introduction of rice farming. Therefore, the first appearance of farming does not appear to have immediately impacted the subsistence system, although it may have changed cultural perceptions of food plants, eventually rice replacing nuts as a staple food. To explain the cultural implications of this shift in emphasis, it is necessary to investigate people’s routine subsistence activities with reference to available ethnographic information on non-mechanised plant processing. The ethnographic data provide insights into ancient nut processing, including possible methods, tools, choices of working locations and labour scales. Conceptual modelling based on ethnographic observations of the range of nut-processing practices will also aid interpretations from newly developed methods, such as starch residue analyses. The resulting archaeobotanical, archaeological and ethnographic picture may help to further explore past social organisation and social perceptions of plant foods.     

Taxonomic characterisation of fresh Dipterocarpaceae resins by gas chromatography–mass spectrometry (GC–MS): providing clues for identification of unknown archaeological resins

Plant and particularly non-wood forest products have played an important role in the evolution of human cultures all over the world, as source of food but also of raw substances fulfilling material, spiritual, and medicinal requirements. Plant exudates and particularly dammar resins (Dipterocarpaceae family) were widely used in the past in Asia notably as waterproofing and caulking materials. This study focuses on the GC–MS chemical characterisation of freshly collected dammars and establishes new molecular parameters enabling discrimination between dammars and other types of plant resin, whatever their botanical origin. Such analyses provide clues for a precise identification (taxonomy, occurrence of other material in addition to the resin, alteration state) of unknown resinous material discovered in archaeological contexts. The value of our approach is illustrated by the taxonomic characterisation of two samples collected in jars from the Brunei wreck and a Chinese junk lost more than 40 km off the Sultanate of Brunei during the end of the fifteenth century or the early beginning of the sixteenth century.     

Fingerprint identification on a bog body (650 BC)

Two thousand and six hundred fifty years after the death of the “Girl of the Uchter Moor”, it was still possible to secure good-quality fingerprints from the right hand of this bog body by using photographic methods followed by image enhancement with an Automated Fingerprint Identification System. A detailed fingerprint analysis was performed, and all five fingers of “Moora's” right hand exhibited ulnar loops. Even today, this is still the most common fingerprint pattern type in Europe. It was also possible to find enough minutiae on the right thumb for secure dactyloscopic identification after more than 2,000 years. The example of “Moora" therefore demonstrates new possibilities for future fingerprint examinations of ancient bodies in archaeological as well as forensic casework.     

Multiple assessments of local properties,production, and performance in metal objects: an experimental case study from Petra,Jordan

This object-specific case study focuses on cupreous artifacts excavated from the Great Temple complex of Petra, Jordan to demonstrate how the use of compositional X-ray analyses alongside two experimental applications (ImageJ software and nanoindentation) have the potential to generate different and otherwise unobtainable information about archaeological metals. The study highlights the value of using multiple techniques as a means of resolving the ambiguities that tend to arise from interpretations of single-sited measurements on objects and from single-instrumental analyses during studies of production processes and consequent material performance. Employing different techniques on multiple localities within a sample permits the gathering of precise information about the behavior of and interrelationships between variables that affect the objects’ fabrication and use, particularly composition, structure, and hardness properties. The resulting data are interpreted in association with contextual archaeological information from Petra to consider the use-life and potential significance of these objects.     

Lithic technology and obsidian exchange networks in Bronze Age Nuragic Sardinia (Italy)

The study of the Sardinian Bronze Age (Nuragic period) and the factors which created and maintained an island-wide identity as seen through the presence of its distinctive nuraghi has received considerable attention; however, the amount of research directly related to the stone tools of the era has been relatively limited despite the wealth of knowledge it is capable of yielding. This research hopes to contribute to Sardinian archaeology through the study of ancient technology, specifically obsidian lithic technology, by combining typological information with source data gleaned from the use of portable X-ray fluorescence spectroscopy. This research also explores temporal changes in the acquisition of obsidian raw materials and the corresponding changes in how the obsidian was used. The results provide precedence for future work in Sardinia and create a model for integrating two types of analyses, sourcing and typological. By combining these results, it is possible to investigate ancient economies, exchange networks, and cultural values.     

OSL dating and lithological characteristics of loess deposits from Biały Kościół

Absolute dating using luminescence methods is widely applicable in geology, geomorphology, palaeogeography and in archaeology in establishing ages of sediments and archaeological artefacts. By creating absolute time scales for different events in the history of Earth scientists are able to reconstruct changes in climate and environment in the past, and the history of colonization and development of culture.