The geometric tools in the late upper Paleolithic of Mongolia

Kharganyn Gol 5 the multilayer site is situated in the Northern Mongolia on the bank of homonymous river the right tributary of Selenga River. The low ridge Chagtagyn Nuruu isolates this river valley from the Tolbor Basin archaeological area. Tolbor river valley contains the highest concentration of the sites. 38 Paleolithic occurrences are known in the valley over 12 km. These objects presents the sequence of cultural development for the most part of Upper Paleolithic and Early Holocene cultural complexes. The earliest objects (~ 41,000-35,000 BP) include the Initial Upper Paleolithic bidirectional parallel knapping technology, aimed to large blade production; ~ 35,000 BP this tradition gave way to Early Upper Paleolithic complexes with predominance of unidirectional reduction, heavy increase of the flakes and trendlike small /microblade flaking. The latest complexes of this period was dated to ~26,000 BP, after that the hiatus in the occupation lasted for 10,000 years and terminated by the appearance of the typical for Southern Siberia the Late Paleolithic complex with developed microblade flaking. The archaeological context of the Kharganyn Gol 5 site is the sequence of 7 cultural horizons, which compose the chronological scheme from Terminal stage of Middle Paleolithic to Final Upper Paleolithic. This site has a Middle Paleolithic basis, technology with obvious Levallois traits in Inintial Upper Paleolithic complex and peculiar industry from horizon 4, and his deposits contain the different then sites of Tolbor Basin area sequence of development. Here there are blade and bladelete tools, which can be interpreted as the geometric components.