Podrobnosti záznamu

    40Ar-39Ar laser dating of tektites from the Cheb Basin (Czech Republic): Evidence for coevality with moldavites and influence of the dating standard on the age of the Ries impact
    Di Vincenco, Gianfranco
    Skála, Roman
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Geochimica et cosmochimica acta
    Roč. 73, č. 2
Výraz tezauru
    Ar-Ar dating
    Ries crater
Klíčové slovo
Abstrakt (anglicky)
   Laser total fusion analysis of milligram to sub-milligram splits of five tektite samples from the Cheb area yielded mostly concordant intrasample Ar-Ar ages of 14.66-14.75 that overlap within errors. These ages match those obtained for samples from western Moravia (14.66 Ma) and southern Bohemia (14.68 Ma), supporting the genetic link between Cheb Basin tektites and moldavites. Laser step-heating experiments were in line with total fusion analyses and yielded well-defined plateau ages of 14.64-14.71 Ma. Based on our data we infer that the age of moldavites is 14.68 Ma.
    UK Praha, Přírodovědecká fakulta
Kód přispěvatele
    UK, PřF
Zdrojový formát
Datum importu
    8. 8. 2012