Podrobnosti záznamu

Název
    Magnetomineralogy of the cordierite gneiss from the magnetic anomaly at Humpolec, Bohemian Moldanubicum (Czech Republic)
Autor
    Chlupáčová, Marta
    Hrouda, František
    Nižňanský, Daniel
    Procházka, Václav
    Rajlich, Petr
    Uher, Pavel
Jazyk
    anglicky
Typ dokumentu
    článek v periodiku
Zdrojový dokument - seriál
    Studia Geophysica et Geodaetica
Svazek/č.
    Roč. 54, č. 1
Strany
    26
Rok
    2010
Výraz tezauru
    anisotropy
    dependence
    hematite-ilmenite series
    kappabridge
    lamellar magnetism
    low-field variation
    ore-deposits
    rocks
    susceptibility
    system Fe2O3-FeTiO3
Klíčové slovo
    Anomaly
    Bohemian
    Cordierite
    Czech
    Gneiss
    Humpolec
    Magnetic
    Magnetomineralogy
    Moldanubicum
    Republic
Abstrakt (anglicky)
   Magnetic properties as well as the magnetomineralogy were investigated in rocks underlying a 7 km long aeromagnetic anomaly situated in the Moldanubian crystalline unit of the Bohemian Massif. The anomaly is caused by highly magnetic cordierite gneiss forming a stripe of NE - SW direction east of the town of Humpolec, eastern Bohemia. Magnetic susceptibility and its anisotropy (AMS), natural remanent magnetization, field and temperature variations of susceptibility were measured. Optical study of thin sections, electron microprobe and Mossbauer studies were also used to reveal the carrier of the high susceptibility and the high NRM. There appear to be two major generations of Fe-Ti oxides: older hematite with ilmenite exsolutions (Ti-hematite) which is the dominant remanence phase, and younger magnetite, the dominant susceptibility phase, usually associated with rutile.
Přispěvatel
    UK Praha, Přírodovědecká fakulta
Kód přispěvatele
    UK, PřF
Zdrojový formát
    R
Datum importu
    8. 8. 2012