Keywords
Al Haggounia 001
extraterrestrial minerals
How to Cite
Abstract
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 (En89-82Fs16-10Wo1-2), 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.
References
Connolly, H.C. Jr., Smith C., Benedix G., Folco L., Righter K., Zipfel J., Yamaguchi A., Chennaoui-Aoudjehane H., Meteoritical Bull. 92, (2007) 1647; Meteoritics Planetary Sci. 42, (2007) 1647.
Irving A.J., Bunch T.E., Rubin A.E., Wasson J.T., 73rd Ann. Met. Soc. Mtg., (2010) #5378.
Bunch T, Wittke J., Irving A.J., http://www4.nau.edu/meteorite/Meteorite/Al_Haggounia.html
Reed S.J.B., Electron Microprobe Analysis and Scanning Electron Microscopy in Geology, (Cambridge Univ., Cambridge, 2000).
Polanski K., Analytical Electron Microscopy in Crystals Investigations, [in:],
Crystals in Nature and Technology, L. Wojtczak, J. Ziomek (Eds) (University of Lodz, Łódz, 2008). p. 173. (In Polish).
Hutchison R., Meteorites: a Petrologic, Chemical and Isotope Syntheses, (Cambridge Univ., Cambridge, 2004).
Sears D.V., The Nature and Origin of Meteorites, (Hilger, Bristol, 1978).
Sears D.V., The Origin of Chondrules and Chondrites, (Cambridge Univ., Cambridge, 2004).
Wasson J.T., Kallemeyn G.W., Phil. Trans. R. Soc.Lond. A325,(1988) 535.
Koblitz J., MetBase® 7.3 Meteorite Data Retrieval Software, (Ritterhude, 2010).
Papike J.J. (Ed.), Planetary Materials, (Mineralogical Soc. America, Washington, 1998).
McSween H.Y. Jr., Meteorites and Their Parent Planets, (Cambridge Univ., New York, 1999).
Norton O.R., The Cambridge Encyclopedia of Meteorites, (Cambridge Univ., Cambridge, 2002).
Kallemeyn G.W., Wasson J.T., Geochim. Cosmochim. Acta 50, (1986) 2153.
Keil K., J. Geophys. Res. 73, (1968) 6965.
Keil K., Meteoritics 24, (1989) 195.
Kimura M., Lin Y., Ant. Met. Res. 12, (1999) 1.
Zhang Y., Benoit P.H., Sears D.W.G., J. Geophys. Res. 100, (1995) 9417.
Chennaoui-Aoudjehane H., Jambon A., Rjimati E., Jull A.J.T., Leclerc-Giscard M.D., 72nd Ann. Met. Soc. Mtg., (2009) #5037.