The structural analysis of Kunya-Urgench chondrite: The nondestructive neutron studies

1Sergey E. Kichanov,1,2Bekhzodjon A. Abdurakhimov,1Ivan Yu Zel,1Andrei K. Kirillov,1Denis P. Kozlenko,3Irina K. Lapina,3Yulii L. Mentsin
Meteoritics & Planetary Science (in Press) Link to Article [https://doi.org/10.1111/maps.13903]
1FLNP, Joint Institute for Nuclear Research, 141980 Dubna, Russia
2Institute of Nuclear Physics, Academy of Sciences of the Republic of Uzbekistan, 100214 Tashkent, Uzbekistan
3Museum of the History of Astronomy, Sternberg Astronomical Institute, Lomonosov Moscow State University, 119992 Moscow, Russia
Published by arrangement with John Wiley & Sons

We present the results of neutron methods, specifically neutron diffraction and neutron tomography, in studying the structural organization of a Kunya-Urgench chondrite fragment. The major phases of the meteorite fragment and variation of the phase content across the studied volume were revealed using neutron diffraction. The 3-D model of the spatial distribution of metal and silicate phases inside the meteorite volume was obtained using neutron tomography. The distributions of volumes, average sizes, and shape-related parameters of kamacite and silicate phases were analyzed. Shape preferred orientations of the kamacite particles were observed and the origins of shape fabric of these particles were discussed.

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