Evidence of micropercussion technique in the complexes of the early Upper Paleolithic at the multilayered stratified sites in the Gobi Altai

Documented evidence of micropercussion technique in the Early Upper Paleolithic (EUP) has been found at the multilayered sites of the Gobi Altai (Tsagaan-Agui Cave, Chikhen-Agui Rock Shelter, and Chikhen-2 Site). In Tsagaan-Agui Cave, elongated cores with the negative scars of microblade removals were found among the materials of the third sedimentation cycle. A sub-prismatic microcore for producing microblades and 24 microblades were found in the collection of the EUP from Chikhen-Agui Rock Shelter. The EUP horizons at the multilayered open site of Chikhen-2 contained microcores and a microblade. A similar situation may be observed for the industries of the EUP at the sites of Northern Mongolia.