Supra-regional correlations of the most ancient paleosols and Paleolithic layers of Kostenki-Borschevo region (Russian Plain)статья
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Дата последнего поиска статьи во внешних источниках: 20 ноября 2019 г.
Аннотация:The archaeological site Kostenki12, located on the Middle Don River, provides a key stratigraphic profile for regional paleopedological, paleoenvironmental, geological and cultural sequences, containing the oldest known cultural layers of the region (layer V e Paleolithic, layer IV e Upper Paleolithic, layer III e Kostenki-Strelets culture early phase) dating to the early part of MIS3, or, in chronometric terms, to 54e42 ka. Kostenki12 complements Kostenki14 (Markina Gora), which is a key profile for the interval 42e27 ka. The new data fromKostenki12 showthat the East European Upper Paleolithic began ~45 ka. The stratigraphy exhibits similarities to that of Borschevo5. TheKostenki12 pollen diagramis correlated with: 1) other pollen diagrams from Kostenki-Borschevo region; 2) the most detailed climatostratigraphical scale of the Russian Plain Late Pleistocene; 3) 16O/18O Greenland GISP2 scale; 4) 13C/14C record from stalagmite at Villars Cave (France), as well as with pollen records (5e7) from: 5) Lake Monticchio (Italy), 6) southern Black Sea (M72/5-25-GC1) and 7) Glinde and Moershoofd (northern Germany). The results of the supra-regional paleoenvironmental correlationsdemonstrate that the lowest Paleolithic layerV and paleosolD, characterized byelm dominance, correlate to the second half of the optimum of the Glinde interstadial at 51e48 ka, corresponding to DO 14.The earliest Upper Paleolithic layer IV and paleosol B, characterized by coexistence of elm forests and wet meadows, began to form during the second part of the Moershoofd interstadial optimum at 46e44 ka, correlating withDO 12. Paleosol A and layer III (Kostenki-Strelets culture) began to formafter the abrupt end of the Moershoofd interstadial ~43.5 ka, during unstable conditions, according to pollen and paleozoological data (steppe with horse dominance and later spruce forest tundra with reindeer dominance in aleozoological complex). These correlations provide more accurate dating of the Paleolithic layers and paleosols at Kostenki-Borschevo, suggesting that previously reported radiocarbon dates on units below CI tephra layer are too young, but that the OSL chronology is generally accurate.