Cultural Metallurgy—A Key Factor in the Transition from the Chalcolithic to Bronze Age in the Southern Levant

The causes of the disappearance of Late Chalcolithic society (Ghassulian) in the early fourth millennium bc remain obscure. This study identifies the collapse as the consequence of a change in the approach to metallurgy from cosmological fundament (Late Chalcolithic) to a practical craft (EB1). This endogenous transition accounts for the cultural recession characterizing the transitional period (EB1A) and the discontinuity in ritual practices. The new practical approach in metallurgy is firstly observed in the southern margin of the Ghassulian culture, which produced copper for distribution in the Nile valley rather than the southern Levant. Nevertheless, the Ghassulian cultural markers visible in the newly emerging areas of copper working (southern coastal plain, Nile valley) denote the survival of the old cosmological traditions among metalworkers of the EB1 culture. Their religious expression unveils the extension of the Ghassulian beliefs attached to metallurgy and their metamorphosis into the esoteric fundaments of the Bronze Age religions.

Pots on mats: mat-impressed salt-extraction pottery at Chalcolithic Provadia-Solnitsata, Bulgaria

Evidence for both basket weaving and salt production is often elusive in the prehistoric archaeological record. An assemblage of Middle–Late Chalcolithic pottery from Provadia-Solnitsata in Bulgaria provides insight into these two different technologies and the relationship between them. The authors analyse sherds from vessels used in large-scale salt production, the bases of which bear the impression of woven mats. This analysis reveals the possible raw materials used in mat weaving at Provadia-Solnitsata and allows interpretation of the role of these mats in salt production at the site. The results illustrate how it is possible to see the ‘invisible’ material culture of prehistoric south-eastern Europe and its importance for production and consumption.

The function of the south-Levantine Late Chalcolithic and Early Bronze Age basalt vessels bearing circumferential depressions: Insights from use-wear analyses

One of the most characteristic aspects of the Late Chalcolithic and Early Bronze Age periods in the southern Levant is the appearance of large assemblages of basalt vessels. These vessels, frequently meticulously made, appear sometimes a considerable distance from the raw material sources and are found mainly at habitation sites. While these and their prestigious value have been widely discussed in the past, their function is still obscure. In the current paper, we address their functionality through microscopic use-wear analysis. Emphasis was placed on basalt vessels with a distinct wear pattern–circumferential depressions, which appear along the perimeter of their interior bases. The documented traces were compared to results of an experimental study we conducted to characterize the effects of abrasion, grinding, and lubrication on basalt surfaces. The results of the comparative experimental study suggest that the circumferential depression was formed from a repetitive rotational activity using a narrow-ended tool. Further, it seems that two material types acted in combination as the circling device and processed material. One was hard and abrasive, such as stone, and the other was semi-resilient, such as wood or mineral powder. Water was likely used as a lubricant in the rotational process. While the actual function of the bowls bearing the circumferential depressions is not entirely clear, the use-wear analyses suggest that they may have been devices involved in craft industries, used for processing materials unrelated to food (minerals in particular). Whatever the exact function was, it clear that this use continued from the Chalcolithic through the Early Bronze Age, providing evidence for functional continuity between these two periods.

Spatial Structure and Chronological Development of the Prehistoric Salt-production Complex of Provadia-Solnitsata

The prehistoric complex of Provadia-Solnitsata is located close to the modern-day town of Provadia in Northeastern Bulgaria. The remains represent the oldest salt-production site in Europe (5600 – 4350 BC) from which emerged the earliest prehistoric urban settlement on the continent (4700 – 4350 BC). The complex occupies an area of approximately 30 hectares. The emergence and development of the site were closely related to the largest and in fact the only rocksalt deposit in the Eastern Balkans, the so-called Mirovo salt deposit on which the settlement sits. Salt production on the site was based on the brine (thick saline water) that flowed out of this salt deposit. Brine boiling in ceramic pots at Provadia-Solnitsata is the earliest example on record in Europe for the use of this technology in salt production. It was practiced on this site for longer than one millennium. The heat needed for the process was generated in advance in a special installation or alternatively, was directly provided by an open fire, in both cases by burning firewood. At the end of the Chalcolithic, a change of technology had to be introduced – the water from the brine was then evaporated in a large ‘basin’ by using heat from solar radiation. The development of the five parts of the complex is presented: the tell with deposits from the Late Neolithic and the Chalcolithic, a cemetery from the Early Bronze Age, a Thracian ‘ruler’s residence’ from the 2nd – 1st centuries BC and a very large tumulus on top; a salt-production center from the Late Neolithic and the Chalcolithic together with ritual facilities from that time; a Late Neolithic pit sanctuary and a cemetery from the Middle Chalcolithic over it; a pit sanctuary from the Late Chalcolithic; a cemetery from the Late Chalcolithic.