Mesopleistocene loess deposits in the Mamalyha 2 profile of Ukraine — interlaboratory comparison of the thermoluminescence dating results

The history of the interlaboratory comparison of TL dating results in Poland started in the 1980s. At that time the Lublin, Warsaw and Silesian laboratories made the first attempts at TL dating of the same loess samples from the Odonów profile. However, the cooperation ceased for many years due to great differences in the obtained TL age estimates. The next interlaboratory comparisons were made in the years 2000–2009 for the loess samples from several Polish (Dybawka, Tarnawce, Dankowice, Biały Kościół) and Ukrainian (Boyanychi, Halych, Velykyj Hlybochok, Yezupil) profiles. Most of the compared dates, obtained for the loess deposits from the Upper Pleistocene and younger part of the Middle Pleistocene, were consistent. This encouraged us to undertake the Gdańsk-Lublin interlaboratory cooperation in dating of 200-700 ka old loess deposits. Nine samples were taken from the Ukrainian profile Mamalyha 2 in 2009 for this purpose. The TL dating results indicate that comparable dates are obtained in two laboratories for loess deposits younger than 300 ka BP. The TL signal obtained in the Gdańsk laboratory for the samples older than 300 ka BP was saturated so such samples should not be dated by the multi-aliquot regeneration method. The results obtained in the Lublin laboratory for these deposits (489–682 ka) confirm that it is possible to date loess deposits older than 500 ka. It probably results from the use of total-bleach method with preheating at 160°C for the equivalent dose determination.     

Thermoluminescence as a technique for determining the nature and history of small solar system particles

The thermoluminescence phenomenon has been used for pottery dating and radiation dosimetry for sixty years and for forty years has been applied to the study of meteorites, being successful in quantifying metamorphic histories and providing new insights into terrestrial age and orbits. Here we review some of the fundamental properties of thermoluminescence with particular focus on the study of small extraterrestrial particles. We suggest that natural TL data can be used to identify the burial and release history of cometary particles and that induced TL measurements can provide in-sights into the mineralogy of particles (even when largely amorphous) and the metamorphic history of those particles. We illustrate the use of TL to study small particles by describing recent studies on micrometeorites and 10–100 μm fragments taken from the matrix of a meteorite Semarkona which is type 3.0 ordinary chondrite.     

Children’s Burial Grounds in Ireland (<Emphasis Type="Italic">Cilliní</Emphasis>) and Parental Emotions Toward Infant Death

Cilliní—or children’s burial grounds—were the designated resting places for unbaptized infants and other members of Irish society who were considered unsuitable by the Roman Catholic Church for burial in consecrated ground. The sites appear to have proliferated from the seventeenth century onwards in the wake of the Counter-Reformation. While a number of previous studies have attempted to relate their apparently marginal characteristics to the liminality of Limbo, evidence drawn from the archaeological record and oral history accounts suggests that it was only the Roman Catholic Church that considered cilliní, and those interred within, to be marginal. In contrast, the evidence suggests that the families of the dead regarded the cemeteries as important places of burial and treated them in a similar manner to consecrated burial grounds.     

Jack of Two Trades,Master of Both: Smelting and Healing in Ufipa,Southwestern Tanzania

Pre-colonial African ironworking was much more than just a technology; it encompassed economic, social, political, symbolic, and even healing components. It is only unfortunate that archaeometallurgical research has not availed equal weight to each aspect, hence the apparent obscurity of some of them. Revealing the multiple facets of healing as manifested in ironworking technology, this paper attempts to rectify this imbalance. Essentially, the paper examines pros and cons of combining ironworking with healing of humans, a phenomenon common among ironworking communities in pre-colonial Africa. It is revealed that by combining the two, iron smelters ensured themselves of gains beyond technology and economy; they also became socially and politically influential. In addition, the paper notes that there existed a very close connection between healing and ritualism not only among smelter–healers but also conventional healers. After a thorough examination, it is found that the connection between the two was also pragmatic and deliberately instituted by the practitioners in order to enhance monopoly of their trade and protect their inventions against interlopers.     

Potential geoarchaeological sites for luminescence dating in the Ganga Bhagirathi-Hugli delta,west Bengal,India

Archaeological studies in the upper and lower part of the Ganga-Bhaghrathi-Hugli delta were taken up to understand the nature of site formation and human adaptation in a dynamic fluvial zone. This aspect has been neglected in Indian archaeology. However archaeological dating using typological information, has an error margin of a couple of centuries and hence, is of limited use. We suggest that high resolution chronology using Optically Stimulated Luminescence (OSL) and radiocarbon dating can be quite effective in the study of archaeology and human environment relationship in the Ganga-Brahmaputra Delta (GBD).     

Schematic Rock Art,Rain-Making and Islam in the Ethio-Sudanese Borderlands

Two sites with schematic rock paintings in Western Ethiopia, where Islamic ceremonies connected with rain-making are performed and miraculous events are said to occur regularly, are interpreted in the light of such factors as the beliefs of local informants, the Islamic appropriation of prehistoric rituals in Northern Africa, the characteristics of similar sites linked to rain-making rituals throughout Eastern Africa and the apotropaic meaning of schematic marks in many traditional cultures. Probably painted by the ancestors of the current Koman language speakers during the Later Stone Age or shortly afterwards, the rock art contextual analysis reveals the complexity of interregional relationships and processes affecting the multi-ethnic frontier regions in pre-colonial times and shows how the local groups have recombined prehistoric and historic religions and ideologies into an original mix that bears witness to the region’s multifaceted history.     

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.     

Comparison of three K-feldspar luminescence dating methods for Holocene samples

The luminescence dating of the K-feldspar fraction is an alternative way for samples that cannot yield reasonable equivalent dose (D_e) from quartz fraction with very weak luminescence signal. For testing the reliability of the infrared stimulated luminescence (IRSL) dating of K-feldspar, luminescence dating was applied to quartz and K-feldspar fractions respectively for several Holocene samples in this study. K-feldspar apparent ages using routine single aliquot regenerative-dose (SAR) protocol, K-feldspar ages using g value correction method and ages from isochron dating method were compared with quartz ages. It is found that the g value correction method cannot give reliable ages due to the large errors induced during measurements. The isochron dating method is effective to the sample with problematically external dose rate. However, isochron dating may introduce a relatively greater error during grain sizes — D_e curve fitting, therefore this method could obtain low-resolution ages for Holocene samples. Even K-feldspar apparent age from routine SAR protocol is relatively younger by about 10% than the quartz age, it still could establish reasonable chronological framework for Holocene samples.     

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.     

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.