Mössbauerowskie badania meteorytu Kuźnica

• Authors: Martyna Jakubowska , Marek Woźniak , Patrycja Bogusz , Łukasz Karwowski , Jolanta Gałazka-Friedman , Przemysław Duda

Title variants

EN

Mössbauer studies of Kuźnica meteorite

• Languages of publication: PL

Abstracts

EN

Kuźnica meteorite was found in summer 2008 by an inhabitant of Częstochowa in the village of Kuźnica (Poland, voivodeship: Łódź, county: Pajęczano) in Poland. The finder, who is a passionate and collector of interesting stones, shared his find with the world only after a few years in the autumn of 2018. The found meteorite with a mass of 2.14 kg is an ordinary chondrite type H5. The degree of weathering on the surface is W2, inside W1. Currently, the meteorite is represented by 3 parts and two thin plates. The main mass is 2.037 kg, fragments are 13.7 g and 5.81 g. The found object was officially classified as a meteorite on 22th of November 2020. In this paper, we present the results of the Kuźnica meteorite measurements obtained by using the Mössbauer spectroscopy method. Mössbauer measurements of Kuźnica were performed at room temperature. The experimental spectrum was elaborated with “Recoil” program. Nine mineralogical phases were identified in the obtained Mössbauer spectrum: two doublets associated with olivine, two doublets associated with pyroxene, sextet associated with troilite, sextet associated with metallic phase identified as kamacite, doublet associated with iron hydroxides and two sextets associated with oxyhydroxides. The presence of a metallic phase or troilite in the test sample is convincing evidence of its extraterrestrial origin. These are mineralogical phases that can only arise in space conditions. Mössbauer spectroscopy allows for unambiguous identification of these mineralogical phases. In the standard 4M method, we use four basic phases to determine the type of ordinary chondrite: olivine, pyroxene, troilite and metallic phase, and we choose specimens in which the content of weathered phases does not exceed 7%. The Kuźnica meteorite is heavily weathered. The content of weathered phases is as much as 36.4%. Secondary minerals are a breakdown product of the metallic phase and to a lesser extent of the sulphide phase. Due to the strong weathering of the Kuźnica meteorite, we can modify the 4M method using only two basic phases: olivine and pyroxene. The analysis of the location of the Kuźnica meteorite on the figure of pyroxene vs. olivine dependence shows that it is ordinary chondrite type H. In this paper, the influence of the loss of the metallic and sulphide phases on the position of the Kuźnica meteorite on the figure of pyroxene/olivine vs. (pyroxene+metallic phase/(olivine+troilite)) was also checked. Weathering processes significantly transform many minerals. The resulting compounds often have parameters difficult to identify. However, difficulties in identifying secondary phases and their origins should not prevent an attempt to determine the type of meteorites using the 4M method.

Keywords

EN

4M method; Kuźnica; Mössbauer spectroscopy; Rumanová ordinary chondrites; meteorites

Discipline

• GEOPHYSICS: GEOPHYSICS

• Publisher: Polskie Towarzystwo Meteorytowe
• Journal: Acta Societatis Metheoriticae Polonorum
• Year: 2021
• Volume: 12
• Pages: 31-40

Dates

published

2021

Contributors

author

Martyna Jakubowska

• Politechnika Warszawska, Wydział Fizyki

author

Marek Woźniak

• Uniwersytet Warszawski, Wydział Biologii

author

Patrycja Bogusz

• Politechnika Warszawska, Wydział Fizyki

author

Łukasz Karwowski

• Wydział Nauk Przyrodniczych, Uniwersytet Śląski w Katowicach

author

Jolanta Gałazka-Friedman

• Politechnika Warszawska, Wydział Fizyki

author

Przemysław Duda

• Politechnika Warszawska, Wydział Fizyki

References

• Berry F.J., Bland P.A., Oates G., Pillinger C.T., 1994a, Iron-57 M6ssbauer spectroscopy studies of meteorites recovered from Roosevelt County, USA, Hyperfine Interactions, 83, s. 469–472.
• Berry F.J., Bland P.A., Oates G., Pillinger C.T., 1994b, Iron-57 Mössbauer spectroscopic studies of the weathering of L-chondrite meteorites, Hyperfine Interactions, 91, s. 577–581.
• Bland P.A., Sexton A.S., T.Jull A.J., Bevan A.W.R., Berry F.J., Thornley D.M., Britt D.T., Pillinger C.T., 1998, Climate and rock weathering: a study of terrestrial age dated ordinary chondritic meteorites from hot desert regions, Geochimica et Cosmochimica Acta, 62(18), s. 3169–3184.
• Bogusz P., Gałązka-Friedman J., Brzózka K., Jakubowska M., Woźniak M., Karwowski Ł., Duda P., 2019, M ssbauer spectroscopy as a useful method of distinguishing between true and false meteorites, Hyperfine Interactions, 240, s. 126.
• Cadogan J.M., Rebbouh L., Mills J.V.J., Bland P.A., 2013, An 57Fe Mössbauer study of three Australian L5 ordinary-chondrite meteorites: Dating Kinclaven 001, Hyperfine Interactions, 222, s. 91–98.
• Cadogan J.M., Devlin E.J., 2014, 57Fe Mössbauer study of the Nurina 003 ordinary chondrite meteorite, Hyperfine Interactions, 226, s. 553–558.
• Elewa N.N., Cadogan J.M., 2017, An 57Fe Mössbauer study of the ordinary chondrite meteorite Lynch 00, Hyperfine Interactions, 238, s. 4.
• Herr W., Skerra B., 1969, Mossbauer spectroscopy applied to the classification of stone meteorites, w: Millman, P.M. (ed.) Meteorite Research. Astrophysics and Space Series. Science Library, 12, s. 106–122.
• Jakubowska M., Rzepecka P., Duda P., Woźniak M., Gałązka-Friedman J., 2017, Badania mössbauerowskie chondrytów zwyczajnych typu H potwierdzają stopień ich zwietrzenia określony za pomocą skali W, Acta Soc. Metheor. Polon., 8, s. 63–72.
• Karwowski Ł., Szopa K., Woźniak M., 2021, Nowe znalezisko meteorytu w południowej części województwa łódzkiego, Acta Soc. Metheor. Polon., 12, s. 41–57.
• Lagarec K., and Rancourt D. G., 1998, Recoil: Mossbauer spectral analysis software for Windows, version 1.0. Ottawa, Canada: Department of Physics, University of Ottawa.
• Lipka, J., Rojkovič, I., Tóth, I., Seberíni, M., 1997, First Mössbauer study of the Slovak meteorite Rumanova, Czechoslovak Journal of Physics, 47(4), s. 529–532.
• Lipka J., Sitek J., Dekan J., Sedlačková K., 2014, Analyses of Rumanová meteorite, Hyperfine Interactions, 226, s. 565–569.
• Vandenberghe R. E., Verbeeck A. E., De Grave E., Stierst W., 1986, 57Fe Mössbauer effect study of Mn-substituted goethite and hematite, Hyperfine interactions, 29, s. 1157–1160.
• Woźniak M., Gałązka-Friedman J., Duda P., Jakubowska M., Rzepecka P., Karwowski Ł., 2019a, Application of Mössbauer spectroscopy, multidimensional discriminant analysis, and Mahalanobis distance for classification of equilibrated ordinary chondrites, Meteoritics & Planetary Science, 54(8), s. 1828–1839.
• Woźniak B., Woźniak M., 2019b, Nowe polskie znalezisko, Częstochowa (A new Polish find, Częstochowa), Acta Soc. Metheor. Polon., 10, s. 193–198.
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• Document Type: article