The studies on the Sungir Upper Paleolithic site in 2014–2015

The article is devoted to the results of archaeological excavations carried out on the Sungir in 2014-2015. The main purpose of these works was to obtain new data on the spatial structure of the cultural layer of the Sungir site. The relevance of these studies is caused by still unsolved question of whether Sungir can be considered as a site with a complex archaeological stratigraphy or the features of its spatial structure are only the result of natural postdepositional processes. Descriptions and characteristics of the stratigraphy of sediments, the spatial organization of the cultural layer, the species’ attribution and taphonomy of the faunal collection, the typology and technology of the stone industry, as well as new radiocarbon dating are given. It is noted that the excavations of 2015 were conducted on the peripheral part of the accumulations which were opened in the excavation unit III by O.N. Bader. Most of the animal bones found during excavations can be considered as belonging to species that the settlers hunted. The analysis of the stone inventory allowed us to identify the following production chains of manufacture: the production of large flakes, the production of blades, and the production of thin bifaces. The data obtained during the typological and technological study of blades and bladelets make it possible to suggest the existence of the fundamental differences between the Sungir industry and the industries of the Aurignacian technocomplex. Predominance of large flakes in the Sungir stone industry, as well as the characteristic techniques in bifaces production, which were recorded in the collection, allow us to consider so-called Streletskian culture as a more reasonable analogy to it. The stratigraphic position both of artifacts and accumulations of archaeological material, as well as the spatial context of the dated bone samples from reconnaissance trench No. 4 (2014), support the conclusion that the cultural layer of the Sungir site was formed in several stages. The results of archaeological work carried out on Sungir in 2014–2015 indicate the real perspectives for its further study. One of the urgent tasks facing the researchers of this outstanding site is the reconstruction of the spatial structure, including its archaeological stratigraphy.

Organization of the Living Space and the Inferred Economic Activity at the Middle Paleolithic Site in Saradj-Chuko Grotto (based on materials of layer 6B)

The use of modern methods of microstratigraphic and planigraphic analyses allows the authors to speak about features of organizing life space in the Middle Paleolithic sites. The layer 6B at Saradj-Chuko grotto can be defined as an actively occupied Middle Paleolithic habitation site, where ancient humans were engaged in manufacture and use of obsidian tools. A tracelogical analysis allowed the authors to reconstruct various economic activities of ancient humans. For the first time for the Middle Paleolithic site in the northern slope of the central Caucasus, a tracelogical analysis was carried out taking into account the space distribution of tools over the site area, which allowed us to study features of human activity at different areas of the site. The new data are considered within a broad context of the Middle Paleolithic of the Caucasus, as well as the available data on economic activity and residential structures in various sites are analyzed.

OSL Chronology of the Siling Co Paleolithic Site in Central Tibetan Plateau

When and how was the Tibetan Plateau (TP), one of the least habitable regions on Earth, occupied by humans are important questions in the research of human evolution. Among tens of Paleolithic archaeological sites discovered over the past decades, only five are considered coeval with or older than the Last Glacial Maximum (LGM, ∼27–19 ka). As one of them, the Siling Co site in the central TP was previously announced to be ∼40–30 ka based on radiocarbon dating and stratigraphic correlation. Given the loose chronological constraint in previous studies, we here re-examined the chronology of the Siling Co site with the optically stimulated luminescence (OSL) dating technique. Four sections from the paleo-shoreline at an elevation of ∼4,600 m in southeastern Siling Co were investigated, with stone artifacts found from the ground surface. Dating results of nine samples delineated the age of ∼4,600 m paleo-shoreline to be ∼10–7 ka (∼8.54 ± 0.21 ka in average). This age indicates that the Siling Co site is not earlier than the early Holocene, much younger than the former age. The revised age of the Siling Co site is consistent with the wet and humid climate conditions on the TP during the early Holocene.