Advanced Search

Show simple item record

dc.contributor.authorMaksimova, A. A.
dc.contributor.authorPetrova, E. V
dc.contributor.authorChukin, A. V
dc.contributor.authorKarabanalov, M. S.
dc.contributor.authorNogueira, B. A.
dc.contributor.authorFausto, R.
dc.contributor.authorOshtrakh, M.
dc.contributor.authorYeşiltaş, Mehmet
dc.description.abstractThe bulk interior of Kemer L4 ordinary chondrite was characterized for the first time by means of optical microscopy, scanning electron microscopy with energy dispersive spectroscopy, Raman spectroscopy, X-ray diffraction, magnetization measurements and Mossbauer spectroscopy with a high velocity resolution. The main and minor iron-bearing phases were found as well as ferrihydrite as a result of weathering. The Fe2+ partitioning among the M1 and M2 sites in olivine, orthopyroxene and clinopyroxene was determined from the X-ray diffraction. The ratios of Fe2+ occupancies for these crystals were estimated from both X-ray diffraction and Mossbauer spectroscopy data and appeared to be in a good agreement. The distribution coefficients K-D and the temperatures of equilibrium cation distribution T-eq were also evaluated for olivine and orthopyroxene from two independent techniques and were in a good consistence: K-D = 1.77, T-eq = 441 K (X-ray diffraction) and K-D = 1.77, T-eq = 439 K (Mossbauer spectroscopy) for olivine and K-D = 0.10, T-eq = 806 K (X-ray diffraction) and K-D = 0.09, T-eq = 787 K (Mossbauer spectroscopy) for orthopyroxene. The fusion crust of Kemer L4 was studied using X-ray diffraction. magnetization measurements and Mossbauer spectroscopy. Magnesioferrite and probably maghemite were found in the fusion crust in addition to other phases observed in the bulk interior. (C) 2020 Elsevier B.V. All rights reserved.en_US
dc.description.sponsorshipMinistry of Science andHigher Education of the Russian Federation [FEUZ-2020-0060]; Act 211 of the Government of the Russian Federation [02.A03.21.0006]; Portuguese Science Foundation (FCT)Portuguese Foundation for Science and Technology [UI0313/QUI/2020]; COMPETE-UE [UI0313/QUI/2020]en_US
dc.description.sponsorshipThe authors are grateful to Prof. Mehmet Emin Ozel (Cukurova University, Adana, Turkey) and the Turkish Meteorite Working Group for providing the meteorite sample. Thisworkwas supported by theMinistry of Science andHigher Education of the Russian Federation, project. FEUZ-2020-0060, and Act 211 of the Government of the Russian Federation, contract. 02.A03.21.0006. The Coimbra Chemistry Centre (CQC; research unit UI0313/QUI/2020) is supported by the Portuguese Science Foundation (FCT) and COMPETE-UE. This work was carried out within the Agreement of Cooperation between the Ural Federal University (Ekaterinburg) and the University of Coimbra (Coimbra).en_US
dc.publisherPergamon-Elsevier Science Ltden_US
dc.relation.ispartofSpectrochimica Acta Part A-Molecular and Biomolecular Spectroscopyen_US
dc.subjectKemer L4 ordinary chondriteen_US
dc.subjectX-ray diffractionen_US
dc.subjectRaman spectroscopyen_US
dc.subjectMagnetization measurementsen_US
dc.subjectMossbauer spectroscopyen_US
dc.titleCharacterization of Kemer L4 meteorite using Raman spectroscopy, X-ray diffraction, magnetization measurements and Mossbauer spectroscopyen_US
dc.authoridNogueira, Bernardo Albuquerque/0000-0002-1756-377X
dc.authoridOshtrakh, Mikhail/0000-0002-2937-5194
dc.authoridMaksimova, Alevtina/0000-0001-7609-411X
dc.departmentFakülteler, Lüleburgaz Havacılık ve Uzay Bilimleri Fakültesi, Havacılık ve Uzay Mühendisliği Bölümü
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.pmidPubMed: 32739517en_US
dc.authorwosidNogueira, Bernardo Albuquerque/N-3583-2019
dc.authorwosidOshtrakh, Mikhail/AAB-4761-2019

Files in this item


This item appears in the following Collection(s)

Show simple item record