Przeglądaj {{ collection }} wg Autor "Polański, Krzysztof"

Teraz wyświetlane 1 - 4 z 4

Microscopic investigations of Gold Basin and El Hammani chondrites
(Wydawnictwo Politechniki Łódzkiej, 2007) Szurgot, Marian; Polański, Krzysztof
Elemental and mineral composition of Gold Basin and El Hammami meteorites discovered in 1995 and 1997 have been studied by analytical electron microscopy and optical microscopy. It was established that the main meteorite minerals: olivines, pyroxenes, kamacite and taenite as well as troilite identified in the samples represent extraterrestrial minerals typical of the ordinary chondrites. Feldspars represented by plagioclase, orthoclase, magnetite, calcite, chromite and silica have been also present in the studied samples. Chemical and mineral composition, iron content, petrologic types of chondrules, their abundance and sizes, the presence of troilite veins and abundance of nonoxidised iron phases confirm H class of El Hammami chondrite, i.e.. olvine-bronzite class, and L class of Gold Basin, i.e. olivine-hyperstene class.
Microscopic investigations of Shisr 007 meteorite
(Wydawnictwo Politechniki Łódzkiej, 2009) Szurgot, Marian; Polański, Krzysztof; Burski, Maciej
Elemental composition, mineral composition and microstructure of Shisr 007 meteorite found in 2001 have been studied by analytical electron microscopy. It was established that the main meteorite minerals: olivines, pyroxenes, troilite, and graphite identified in the sample represent extraterrestrial minerals typical of olivine-pyroxene achondrites. Chemical and mineral composition, and texture confirm previous classification of this achondrite as ureilite.
Microscopic studies of Al Haggounia 001 meteorite
(Wydawnictwo Politechniki Łódzkiej, 2011) Szurgot, Marian; Polański, Krzysztof; Kosiński, Janusz
Elemental composition, mineral composition and microstructure of Al Haggounia 001 meteorite found in 2006 were studied by analytical electron microscopy. It was established that orthopyroxene dominated by enstatite (En89-S2Fs16-10Wo1-2), sodic plagioclase (Ab81-84An10-12Or4-5), graphite, and oxidized kamacite identified in the sample represent extraterrestrial minerals typical of enstatite meteorites. Chemical and mineral composition, and texture confirm that Al Haggounia is EL chondrite rather than aubrite, and terrestrial weathering significantly changed primary meteorite minerals.e
Microstructure of NWA 4435 meteorite
(Politechnika Łódzka, 2008) Szurgot, Marian; Polański, Krzysztof
Elemental composition, mineral composition and microstructure of NWA 4435 meteorite found in 2006 has been studied by analytical electron microscopy and optical microscopy. It was established that the main meteorite minerals: olivines, pyroxenes, troilite, and graphite identified in the sample represent extraterrestrial minerals typical of carbonaceous chondrites. Chemical and mineral composition, petrologic type of chondrules, their abundance and sizes, the presence of troilite, and abundance of oxidized iron phases confirm CV3 class of this chondrite.