Wyniki badań składu pierwiastkowego i mineralnego eukrytu NWA 4039 za pomocą analitycznej mikroskopii elektronowej

• Authors: Marian Szurgot , Krzysztof Polański

Title variants

EN

Results of investigation of elemental and mineral composition of NWA 4039 eucrite by analytical electron microscopy

• Languages of publication: PL

Abstracts

EN

New NWA 4039 eucrite found in 2005 in Morocco was investigated by scanning electron microscopy. Elemental composition and mineral composition have been analyzed. The composition of feldspars and plagioclases has been determined, and the presence of ilmenite, chromite, troilite and silica confirmed. It was established that the mean elemental composition of NWA 4039 and atomic and molar ratios: Fe/Mn = 31, Na/Al = 0.045, Ca/Al = 0.66 and Mg/Mg+Fe = 31 are typical of eucrites, and two main meteorite minerals have the mean composition: pyroxene En30Fs66Wo4 and plagioclase feldspar An91Ab9. Presence of clinopyroxene pigeonite En37Fs55Wo8 and plagioclase An90Ab10 and An92Ab8 has been
revealed. Mean chemical composition, as well as TiO2 content (0.59 wt%) vs. FeO/MgO ratio (4.11) indicate that NWA 4039 is a non cumulate, basaltic eucrite.

Keywords

EN

HED meteorites; analytical electron microscopy; extraterrestrial matter; meteorites

Discipline

• GEOPHYSICS: GEOPHYSICS

• Publisher: Polskie Towarzystwo Meteorytowe
• Journal: Acta Societatis Metheoriticae Polonorum
• Year: 2012
• Volume: 3
• Pages: 126-139

Contributors

author

Marian Szurgot

• Centrum Nauczania Matematyki i Fizyki Politechniki Łódzkiej

author

Krzysztof Polański

• Katedra Fizyki Ciała Stałego Uniwersytetu Łódzkiego

References

• Barbacki A. (Ed.), 2005. Mikroskopia elektronowa. Poznań.
• Barrat J.A., Blichert-Toft J., Gillet PH., Keller F., 2000. The differentiation of eucrites: the role of in-situ crystallization. Meteoritics & Planetary Science, 35. 1087–1100.
• Cimała M., 2006. www.polandmet.com
• Connolly H.C. Jr, Zipfel J., Grossman J.N., Folco L., Smith C., Jones R.H., Righter K., Zolensky M., Russel S.S., Benedix G.K., Yamaguchi A., Cohen B.A., 2006. Meteoritical Bulletin 90, MAPS, 41 (9), 1383–1418.
• Greshake A., Kurz, M., 2012. Northwest Africa 4039. Meteoritical Bulletin Database. http://www.lpi.usra.edu/meteor/metbull.php
• Hutchison R., 2004. Meteorites – a petrologic, chemical and isotopic synthesis. Cambridge.
• Johum K.P., Grais K.I., Hintenberger R.H., 1980. Chemical composition and classification of 19 Yamato meteorites. Meteoritics, 15. 31–39.
• Manecki A., 2004. Encyklopedia minerałów z polskim i angielskim słownikiem nazw. Minerały Ziemi i materii kosmicznej. Kraków.
• Manecki A., 2010a. Meteory, meteoryty, pramateria słoneczna i „kosmiczne” technologie. Kraków.
• Manecki A., 2010b. Meteoryty. Oblicza goœci z kosmosu. Kraków.
• Mason B., Jarosevich E., Nelen J.A., 1979. The pyroxene-plagioclase achondrites. Smiths. Contrib. Earth Sci., 22. 27–45.
• Mayne R.G., McSween H.Y., McCoy T.J., Gale A., 2009. Petrology of the unbrecciated eucrites. Geochim. Cosmochim. Acta, 73. 794–819.
• McSween Jr. H.Y., Mittlefehldt D.W., Beck A.W., Mayne R.G., McCoy T.J., 2010. HED meteorites and their relationship to the geology of Vesta and the Dawn mission. Space Sci Rev. DOI 10.1007/s11214-010-9637-z.
• McSween H.Y., Jr., Huss G. R., 2010. Cosmochemistry. Cambridge University Press, Cambridge, UK.
• McSween H.Y., Jr., 1999. Meteorites and their parent planets. Cambridge University Press, Cambridge, UK.
• Mittlefehldt D.W., McCoy T.J., Goodrich C.A, Kracher A., 1998. Non-chondritic meteorites from asteroidal bodies. [in:] Papike J.J. (ed.), Planetary materials, Reviews in Mineralogy and Geochemistry, Mineralogical Soc. America, Washington D.C. 36. 4.1–4.195.
• Norton O.R., 2002. The Cambridge encyclopedia of meteorites. Cambridge Univ. Press, Cambridge, UK.
• Polański M., 2008. Analityczna mikroskopia elektronowa w badaniach kryształów. [w:] Kryształy w przyrodzie i technice. Przewodnik po świecie kryształów. Łódź, 173–190.
• Reed S.I.B., 2005. Electron microprobe analysis and scanning electron microscopy in geology. Cambridge.
• Sears D.W., 1978. The Nature and Origin of Meteorites. Bristol.
• Sears D.W., 2004. The Origin of Chondrules and Chondrites. Cambridge.
• Stolper E., 1977. Experimental petrology of eucritic meteorites. Geochim. Cosmochim. Acta, 41, 587-611.
• Szurgot M., 2009. Badania ureilitu NWA XXX za pomocą analitycznej mikroskopii elektronowej. Acta Societatis Metheoriticae Polonorum, 1. 137–141.
• Szurgot M., Polański K., Kozanecki M., 2007a. Kompleksowe zastosowanie metod analitycznych do badań chondrytów. Materiały III Seminarium Meteorytowego Olsztyn 2005, Sosnowiec. 93–98.
• Szurgot M., Kozanecki M., 2007. Zastosowanie spektroskopii Ramana i techniki płytek cienkich w badaniach minerałów meteorytu NWA 4039. 49 Konwersatorium Krystalograficzne, Wrocław, Streszczenia komunikatów, 136–137.
• Szurgot M., Kozanecki M., 2009. Spektroskopia Ramana w badaniu meteorytów NWA 4039 i NWA 1465. Acta Societatis Metheoriticae Polonorum, 1. 151–155.
• Szurgot M., Polański K., Jakubas A., 2006. Analityczna mikroskopia elektronowa w badaniach minerałów eukrytu NWA 4039. 48 Konwersatorium Krystalograficzne, Wrocław, Streszczenia komunikatów, 204–205.
• Szurgot M., Polański K., Krystek M. 2008a. Electron and optical microscopy studies of extraterrestrial minerals in NWA 4047 meteorite. Cryst. Res. Technol., 43. 656–665.
• Szurgot M., Rożniakowski K., Wojtatowicz T.W., Polański K., 2008b. Investigation of microstructure and thermophysical properties of Morasko iron meteorites. Cryst. Res. Technol., 43. 921–930.
• Szurgot M., Kisiel, K., Kisiel R., 2009a. Micro-Raman spectroscopy of NWA 4047 meteorite. Proc. Conf. on Micro-Raman Spectroscopy and Luminescence Studies in the Earth and Planetary Sciences, Mainz, Gucsik A. (Ed.), AIP Proceedings 1163. 155–160.
• Szurgot M., Polański K., Burski M., 2009b. Microscopic investigations of Shisr 007 meteorite. Sci. Bull. Techn. Univ. Lodz, No 1057, Physics, 30. 73–83.
• Szurgot M., Polański K., Kosiński J.W., 2011. Microscopic studies of Al Haggounia 001 meteorite. Sci. Bull. Techn. Univ. Lodz, No 1105, Physics, 32. 65–74.
• Szurgot M., Polański K., 2011. Investigations of HaH 286 eucrite by analytical electron microscopy. Meteorites, 1. Submitted.
• Takeda H., 1997.Mineralogical records of early planetary processes on the howardite, eucrite, diogenite parent body with reference to Vesta. Meteoritics & Planetary Science, 32, 841–853.
• Takeda H., Ishi T., Arai T., Miyamoto M., 1997. Mineralogy of the Asuka 87 and 88 eucrites and crustal evolution of the HED parent body. Antarct. Meteorite Res., 10, 401–413.
• Yamaguchi A., Taylor G.J., Keil K., 1997. Shock and thermal history of equilibrated eucrites from Antarctica. Antarct. Meteorite Res., 10, 415–436.
• Yamaguchi A., Barrat J.A., Greenwood R.C., Shirai N., Okamoto C., Setoyanagi T., Ebihara M., Franchi I.A., Bohn M., 2009. Crustal partial melting on Vesta: Evidence from highly metamorphosed eucrites. Geochim. Cosmochim. Acta, 73. 7162–7182.

• Document Type: article