Podrobnosti záznamu

Název
    Neutron activation analysis in geochemical characterization of Jurassic-Cretaceous sedimentary rocks from the Nordvik Peninsula
Autor
    Košťák, Martin
    Mizera, Jiří
    Řanda, Zdeněk
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Journal of Radioanalytical and Nuclear Chemistry
Svazek/č.
    Roč. 284, č. 1
Strany
    9
Rok
    2010
Výraz tezauru
    Iridium anomaly
    Jurassic-Cretaceous boundary
    Nordvik Peninsula
Klíčové slovo
    Activation
    Analysis
    Characterization
    Geochemical
    Jurassic-Cretaceous
    Neutron
    Nordvik
    Peninsula
    Rocks
    Sedimentary
Abstrakt (anglicky)
   As a part of geophysical, stratigraphical and paleontological study aimed at precise correlation of the Jurassic-Cretaceous (J/K) boundary interval in the Tethyan and Boreal Realms, detailed magnetostratigraphic and biostratigraphic profiles with well-calibrated J/K boundary have been selected from several localities for geochemical characterization. Instrumental and radiochemical neutron activation analyses (INAA and RNAA, respectively) were employed in the characterization of a vertical profile around the supposed J/K boundary in the Boreal Realm situated on the Nordvik Peninsula, Northern coast of Middle Siberia (Laptev Sea), Russia, for which an iridium anomaly has been reported in literature. INAA enabled determination of about forty major and trace elements. An RNAA procedure for assaying platinum group elements (PGE) has been tested consisting in sample decomposition by alkaline-oxidative fusion, reduction of PGE, and precipitation of their sulphides. decomposition of burried or
   ganic matter.
Přispěvatel
    UK Praha, Přírodovědecká fakulta
Kód přispěvatele
    UK, PřF
Zdrojový formát
    R
Datum importu
    8. 8. 2012