Podrobnosti záznamu

Název
    Volcanic ash particulate matter from the 2010 Eyjafjallajökull eruption in dust deposition at Prague, central Europe
Autor
    Hladil, Jindřich
    Koptíková, Leona
    Navrátil, Tomáš
    Skála, Roman
    Strnad, L.
Jazyk
    anglicky
Typ dokumentu
    článek v odborném periodiku
Zdrojový dokument - seriál
    Aeolian Research
Svazek/č.
    Roč. 9, June
Strany
    s. 191-202
Rok
    2013
Poznámky
    Projekt: IAAX00130702, GA AV ČR3cav_un_auth*0226941
    Rozsah: 12 s. : E
Předmětová kategorie
    Eyjafjallajökull volcano
    geochemical analysis
    grain size
    Icelandic tephra
    mineralogy
Klíčové slovo
    2010
    Ash
    Central
    Deposition
    Dust
    Eruption
    Europe
    Eyjafjallajökull
    Matter
    Particulate
    Prague
    Volcanic
Abstrakt (anglicky)
   Particles originating from the last major Eyjafjallajökull volcano eruption in April 2010 were subsequently found in settled dust samples collected in a suburban area of Prague, Czech Republic. These dust samples contained predominantly non-volcanic particulate matter of super-regional but mainly local origin. The highest proportion of the Eyjafjallajökull material recorded in the Prague daily dust samples reached 12% of the total lithic component mass. Volcanogenic particles, mostly glasses, were concentrated in particle size classes from 2.5 to 25 μm, but rare fragments of volcanic glasses up to 50 μm in diameter were also found. The most effective method for detection and identification of the volcanic ash particles were morpho-textural observations combined with energy dispersive and wavelength dispersive analysis of individual grains and X-ray powder diffraction.
   Because of the low percentage of volcanic ash particles in the total samples, the geochemical signal was rather weak although detectable in terms of selected trace elements and REE distributions. The mineralogy, particle size distributions, and geochemical compositions of the Prague samples were compared with reference materials sampled near the Eyjafjallajökull volcano.
Přispěvatel
    AV ČR Brno, Geologický ústav
Kód přispěvatele
    AV ČR, GLÚ
Zdrojový formát
    U
Datum importu
    23. 10. 2014