Izokh E., Kashkarov L., Korotkova N.Age and chemical composition of the Zhamanshin crater impactites and tektites and comparison with Australasian tektites

Новосибирск: CO PAH HUU OUГГM, 1993. — 94 c.The Zhamanshin impact crater is the only impact crater on the Earth where impactites, various tektites and microtektites coexist. Thus the Crater becomes the best object to solve the old tektite puzzle. Published before and new data on the radiogenic ages and chemistry of the Zhamanshin tektites and Australasian tektites summarized to demonstrate their close genetic relations. The tektite age-paradox serves as the base evidence in favor of the exstraterrestrial origin of tektites. The petrographical and petrochemical features of tektites demonstrate their most possible volcanic origin.