Microblade Technology And Site Structure Of The Late Mesolithic Hunter-Gatherers In Donggi-Cona Lake Basin: New Implications For Human Dispersals And Interactions In The Northeastern Tibetan Plateau During The Holocene

The high-resolution tracing of the behavior pattern and lithic technology of the last hunter-gatherers in the Tibetan Plateau (TP) has been a rarely worked area. Here we report four Late Mesolithic sites comprised of both base camp and temporary localities in the Donggi-Cona Lake Basin with the elevations exceeding 4000 m above sea level, among which DJCN 3-2-2 was well preserved with organized site structure and dated to ca. 5400-5000 cal BP. We analyze the micmblade technology and site structure in the Donggi-Cona Lake Basin and discuss it in the context of the prehistory of China. The Donggi-Cona microblade sites provide significant insights into the technology, behavior, and social organization of the last Mesolithic hunter-gatherers in the TP, and into the human dispersals and interactions in the northeastern Tibetan Plateau during the Holocene.