In the summer of 2016,excavation was conducted at the Nwya Devu site,revealing a significant quantity of lithic artifacts,including blades,flakes,bladelets,cores,stone tools,and chunks.Optically stimulated luminescence dating and radiocarbon dating indicate that the primary cultural stratum dates back approximately 40,000-30,000 years.Prismatic core and blade technology emerge as the principal cultural characteristics of the Nwya Devu site,representing rapid advancement in lithic tool production techniques and the adaptive capabilities of early modern humans.This technology exhibits certain connections with stone blade sites discovered in northern China,Siberia and Outer Mongolia in the eastern Eurasian steppe,providing crucial material for exploring population dispersal and cultural diffusion during the early Upper Paleolithic period.
Xainza County,XizangNwya Devu SiteBlade TechnologyUpper Paleolithic Age
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