MINERALOGIES OF THE METEORITES FALLEN IN TURKEY

Year 1990, Volume: 111 Issue: 111, 52 - 52, 01.04.1990

Ahmet Çağatay İbrahim Çopuroğlu

Abstract

In this study mineral compositions, textures, structures and their relationships with one another of three meteorites which
have fallen in various parts of Turkey have been examined. The Şeyhhalil meteorite, being the one of these, displays similar mineral paragenesis,
textures and composition with those of the Bursa meteorite. Minerals which occur in both of these meteorites have been differentiated
as silicate and ore minerals. Silicate minerals that common in both are orthopyroxene, olivine, plagioclase, serpentine, talc, seriate and
clay. Ore minerals, in addition, are kamacite, troilite, chromite, taenite, native copper, ilmenite, mackinawite, and limonite. Trace and very
small amounts of rutile, chalcopyrrhotine, whitlockite and apatite arc also observed in spongy-like Şeyhhalil meteorite. According to their
mineralogical compositions, both of the meteorites might be considered within the "siderolite" class. Ağrı meteorite, on the other hand,
might be included within the "octahedral" class and is composed mainly of very scarce amount of troilite; besides, kamacite, taenite and
plessite of three different iron-nickel minerals.

Keywords

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References

• Ceylan, M., 1987, An inveıtigation of the Akyumak (Ağrı) meteorite: Fırat Üniversitesi Haber Bülteni, 2 (2), s.41-50, Elazığ.
• Fritz, H., 1957, Meteorites: The University of Chicago presi, Translated by Edvvard Anders in calliboration with Eugene R. DuFresne, 144 s, Chicago and London.
• Göksu, Y.; Türetken, N. ve Çakır, S., 1975, Bursa meteoritlerinin termoluminesans özellikleri ve yaş analizi: TÜBİTAK ve Bilim Kongresi bildiri özetleri, ODTÜ Fizik Bölümü, s. 61-78, Ankara.
• Jung, H., 1960, Grundriss der mineralogie una Petrographie: Veb Gustav Fischer Verlag, Jena, s. 387-392, D.Almanya.
• Kaynak, U., 1984, Ağrı-Akyumak meteoritlerinin kimyasal ve fiziksel özellikleri: Adapazarı Mühendislik Fakültesi, Fizik Bölümü Doktora tezi (yayımlanmamış).
• Ozaner, S., 1989, Uzaydan gelen tanıklar "meteoritler": Bilim ve Teknik Derg., 22, 265, 8-12, TÜBİTAK, Ankara.
• Poldervaart, A., 1950, Correlation of Physical Properties and Chemical Composition in the Plagioclase, Olivine and Orthopyroxene Series: Amer.Min., 35, 1067-1079.
• Ramdohr, P., 1975, Die Erzminerallien und ihre Verwachsungen: Akademie-Verlag, Berlin.
• Strunz, H., 1978, Mineralogische Tabellen: Akademie-Verlagsgesellschaft Geest und Portig K.-G. Laipzig, D.Almanya.