Ọ bụ ndị ọkà mmụta sayensị sitere na ngalaba Siberian nke Russian Academy of Sciences (СО РАН) mere nchọpụta nke rediocarbon nke iberibe antler nke reindeer a chọtara na saịtị Kushevat Paleolithic dị na mpaghara Lower Ob.
Na mgbakwunye na ọkpụkpụ antler, ndị ọkà mmụta sayensị nyochakwara mammoth ajị anụ (Mammuthus primigenius), bison steppe (Bison Priscus), elk (Alces) deer (Cervus elephus sibiricus), na, enwere ike, ehi musk (Ovibos moschatus). Nnyocha nke ọkpụkpụ mere ka ha laghachi azụ na usoro 20 dị iche iche nke rediocarbon, ha niile sitere na oge n'etiti 20 na 40 puku afọ gara aga.
Ọ bụ ezie na nchọpụta a na-arụtụ aka na anụmanụ, ọ bụghị ụmụ mmadụ, na-egbochi mpaghara Arctic 40,000 afọ gara aga, nchọpụta a aghọwo ihe ndabere nke nyocha ndị ọzọ, nke na-eme ugbu a ọrụ mmadụ na mpaghara Ob azụ na 40,000 afọ gara aga. Nke a bụ n'ihi na mgbada abụọ nwere akara ọrụ mmadụ n'ime otu ọkpụkpụ a, bụ nke a nyochachara na nso nso a.
Ajụjụ banyere nhazi mbụ nke Arctic na Subarctic site n'aka nwoke oge ochie nke ụdị oge a (Homo sapiens sapiens) na-amasị ndị ọkà mmụta sayensị ogologo oge. A na-ewerekarị ndagwurugwu nke Osimiri Ob ka ụzọ ọpụpụ nwere ike ime maka nwoke Paleolithic. A kwenyere na mmadụ nke oge a bịara Europe na Asia puku afọ 50,000-60,000 gara aga.
Ihe ka na-edoghị anya bụ ebe nwoke nke oge a bi na mbụ na otú o si gafee Urals? Ruo ogologo oge, echiche ahụ meriri na 12,000-30,000 afọ gara aga, nnukwu glacier kpuchiri ugwu nke Western Siberia (dị ka ugwu America na Europe). N'ebe ndịda nke glacier a bụ efere mmiri nwere mgbochi nke ruru mita 130.
N'ihi nke a, a kwenyere na ịchọ ebe ndị ọkà mmụta ihe ochie malitere na oge 30-40 puku afọ gara aga n'ebe ugwu enweghị isi. E gosipụtara ya site na ihe fọrọ nke nta ka ọ bụrụ enweghị ihe ọ bụla (ngwaọrụ, saịtị, ihe ndị dị ndụ).
N'ihi usoro nyocha nke mba ụwa na-eji AMS mkpakọrịta nwoke na nwaanyị na-akpali akpali luminescence, ndị nchọpụta si Europe na Russia gosipụtara na ọ dịghị mkpuchi ice n'ebe ugwu nke Western Siberia 12,000-30,000 afọ gara aga. Ọ dị nnọọ mbụ: afọ 90,000-60,000 gara aga n'ebe ugwu Salekhard. Ọkwa nke mmiri mmiri akpụrụ akpụ nke dị na ndagwurugwu Ob agafeghị mita 60.
Nke a bụ foto paleogeographic kpamkpam dị iche. Ruo afọ iri atọ, ekwenyesiri m ike na n'ebe ugwu nke Western Siberia, e nwere ọnọdụ niile maka ịdị adị nke onye oge ochie. Ugbu a, anyị nwere ohere ịnwale igosi ya: ịchọta akara nke Homo sapiens n'ebe ugwu nke Ob 30,000-50,000 afọ gara aga, - onye njikwa ọrụ, onye isi ụlọ nyocha nke ụlọ nyocha. Institute of Geology na Minerology aha ya bụ VIVS kwuru na nkwupụta akụkọ.
Dị ka Barents Observer kọrọ “Nnyocha a na-egosi na Homo sapiens na ọ bụghị naanị Neanderthals bi na Arctic Circle n'oge Upper Paleolithic. Ihe dị ka afọ iri abụọ gara aga, o doro anya na Neanderthals, ọ bụghị Homo sapiens, bụ ndị bi na mpaghara ahụ n'oge ahụ."
Achọpụtara nke a site na rediocarbon na-akpa otu ọkpụkpụ e gwupụtara na 2001 na saịtị Yakutia. Nnyocha nke radiocarbon tụrụ aro na Neanderthals achọpụtala onwe ha na mpaghara ihe dịka afọ 28,500-27,000 gara aga.
Nyocha AMS ọhụrụ ewepụtala nnukwu ọganihu abụọ. Nke mbụ bụ na Homo sapiens, yana Neanderthals, bi na gburugburu Arctic n'oge Paleolithic Age, na nchọpụta nke abụọ bụ na Homo sapiens bi n'ebe ugwu nke Arctic okirikiri ugbua 40,000 afọ gara aga.
