电邮这篇文章 Thermal metamorphism of metal assemblage in the light lithology of the Chelyabinsk LL5 meteorite
- 作者: Brusnitsyna E.V.1, Muftakhetdinova R.F.1, Yakovlev G.A.1,2, Grokhovsky V.I.1
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隶属关系:
- B.N. Yeltsin Ural Federal University
- A.N. Zavaritsky Institute of Geology and Geochemistry, UB RAS
- 期: 卷 24, 编号 2 (2024)
- 页面: 341-346
- 栏目: Articles
- URL: https://journal-vniispk.ru/1681-9004/article/view/311191
- DOI: https://doi.org/10.24930/1681-9004-2024-24-2-341-346
- ID: 311191
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Research subject. Metal assemblage in the light lithology of the Chelyabinsk ordinary chondrite (LL5). Aim. The study of the structure of kamacite (α-Fe(Ni, Co)) and taenite (γ-Fe(Ni, Co)), as well as identification of the morphological features resulting from heating of chondrite matter. Materials and methods. Samples from the unaltered light lithology of the Chelyabinsk meteorite. The chemical composition of the samples was studied using optical microscopy (Zeiss Axiovert 40 MAT) and scanning electron microscopy (FE-SEM ∑IGMA VP) with an EDS unit. Results. The studied fragments can be divided into three groups depending on their structural composition: 1) metal grains with an unchanged structure; a zonal structure is observed in taenite (tetrataenite, cloudy zone); 2) metal grains with a taenite structure similar to the zonal one; 3) fragments in which no grains with a zonal structure were found; martensite-like structures formed during reheating were present. The structure of metal assemblage in the Chelyabinsk chondrite is compared with the structure of metal assemblage obtained in previous experiments with the Seymchan iron meteorite. It was established that heating to a temperature of 400°C for 6 h causes no changes in the metal grain structure. Heating to temperatures of 500 and 600°C for 6 h initiates transformation processes of the cloudy zone, which disappears completely after heated to 700°C for 6 h. Conclusions. Fragments of the light lithology of the Chelyabinsk ordinary chondrite were heating unevenly as a result of an impact event in its cosmic history. The presence of tetrataenite and a cloudy zone in one of the fragments means that temperature in this area didn’t exceed 400°C. Some areas underwent heating in the temperature range of 500–600°C and above 700°C.
作者简介
E. Brusnitsyna
B.N. Yeltsin Ural Federal University
Email: jeka_bru@list.ru
R. Muftakhetdinova
B.N. Yeltsin Ural Federal University
G. Yakovlev
B.N. Yeltsin Ural Federal University; A.N. Zavaritsky Institute of Geology and Geochemistry, UB RAS
V. Grokhovsky
B.N. Yeltsin Ural Federal University
参考
- Анфилогов В.Н., Белогуб Е.В., Блинов И.А., Еремяшев В.Е., Кабанова Л.Я., Лебедева С.М., Лонщакова Г.Ф., Хворов П.В. (2013) Петрография, минералогия и строение метеорита Челябинск. Литосфера, (3), 118-129.
- Берзин С.В., Ерохин Ю.В., Иванов К.С., Хиллер В.В. (2013) Особенности минерального и геохимического состава метеорита Челябинск. Литосфера, (3), 89-105.
- Богомолов Е.С., Скублов С.Г., Марин Ю.Б., Степанов С.Ю., Антонов А.В., Галанкина О.Л. (2013) Sm-Nd возраст и геохимия минералов метеорита Челябинск. Докл. АН, 452(5), 548-553.
- Брусницына Е.В., Муфтахетдинова Р.Ф., Яковлев Г.А. (2023) Металлографическая оценка степени нагрева внеземного вещества. Уральская школа молодых металловедов. Сб. ст. конф. XХII Уральской школысеминара металловедов – молодых ученых. (Под ред. А.А. Попова). Екатеринбург, Ажур, 152-156.
- Галимов Э.М., Колотов В.П., Назаров М.А., Костицын Ю.А., Кубракова И.В., Кононкова Н.Н., Рощина И.А., Алексеев В.А., Кашкаров Л.Л., Бадюков Д.Д., Севастьянов В.С. (2013) Результаты вещественного анализа метеорита Челябинск. Геохимия, 51(7), 580-598.
- Маракушев А.А. (1988) Петрология. М.: Изд-во Моск. ун-та, 311 с.
- Степанов С.Ю., Берзин С.В. (2015) Микроэлементный состав троилита, железа и никелистого железа метеорита Челябинск. Литосфера, (1), 98-108.
- Ханчук А.И., Гроховский В.И., Игнатьев А.В., Веливецкая Т.А., Кияшко С.И. (2013) Первые данные изотопного состава кислорода, углерода и серы метеорита Челябинск. Докл. АН, 452(3), 317-320.
- Шредер А., Роуз А. (1972) Металлография железа. Т. II. Структура сталей (с атласом микрофотографий). Пер. с англ. М.: Металлургия, 478 с.
- Явнель А.А. (1983) Упорядоченная структура FeNi в метеоритах и диаграмма состояния системы железоникель. Метеоритика, 42, 66-71.
- Badyukov D.D., Raitala J., Kostama P., Ignatiev A.V. (2015) Chelyabinsk Meteorite: Shock Metamorphism, Black Veins and Impact Melt Dikes, and the Hugoniot. Petrology, 23, 103-115.
- Brusnitsyna E.V., Badekha K.A., Grokhovsky V.I., Muftakhetdinova R.F. (2018) Martensite morphology in different types of meteorites. Meteorit. Planet. Sci., 53(S1), 6290.
- Brusnitsyna E.V., Muftakhetdinova R.F., Yakovlev G.A., Kiryakov A.N. (2023) Structural changes in the metallic particles of the Calama 009 ordinary chondrite after heating. Meteorit. Planet. Sci., 58(S1), 6251.
- Grokhovsky V.I., Brusnitsyna E.V., Yakovlev G.A. (2015) Haxonite in Chelyabinsk LL5 meteorite. Meteorit. Planet. Sci., 50(S1), 5272.
- Grokhovsky V.I., Kohout T., Gritsevich M., Koneva E.V. (2014) Physical properties, structure and fracturing of the Chelyabinsk LL5 meteorite body. Meteorit. Planet. Sci., 49(S1), 5364.
- Grokhovsky V.I., Muftakhetdinova R.F., Yakovlev G.A., Brusnitsyna E.V., Petrova E.V. (2020) Post-impact metamorphism of the Chelyabinsk meteorite in shock experiment. Planet. Space Sci., 192, 105050.
- Yang C.-W., Williams D.B., Goldstein J.I. (1996) A revision of the Fe–Ni phase diagram at low temperature. J. Phase Equilibria, 17, 522-531.
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