Abstract
The results of examining fragments of impact glasses of the regolith samples from Mare Fecunditatis delivered to the Earth by the Luna 16 Soviet automatic station are presented. Nanosize inclusions of native iron and titanium were found in the samples by means of transmission electron microscopy (TEM). It is shown that these inclusions are constituted of single-crystalline formations. The high-pressure phase of native ω-titanium was discovered naturally for the first time. The data testifying to the high heterogeneity of the glass matrix of regolith grains are presented. Possible mechanisms of the formation of nanocrystals of the treated native phases are discussed.
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References
J. W. Frondel, Lunar Mineralogy (Wiley Intersci., New York, 1975).
A. V. Mokhov, P. M. Kartashov, and O. A. Bogatikov, New Data on Lunar Mineralogy: The Moon under Microscope (Nauka, Moscow, 2007) [in Russian].
O. I. Yakovlev, Yu. P. Dikov, and M. V. Gerasimov, Gechem. Int. 47(2), 109 (2009).
C. James, S. Letsinger, A. Basu, S. J. Wentworth, and D. S. McKay, Size Distribution of Fe0 Globules in Lunar Agglutinitic Glass, XXXIII Lunar and Planetary Science Conference, abstr. 1827, Houston (TX), 2002.
L. P. Keller and D. S. McKay, Science 261, 1305–1307 (1993).
M. Thompson and R. Christoffersen, The smallest lunar grains: analytical TEM characterization of the submicron size fraction of a mare soil, XLI Lunar and Planetary Science Conference, abstr. 2191, Houston (TX), 2010.
Yu. P. Dikov, V. V. Nemoshkalenko, V. G. Aleshin, O. A. Bogatikov, and A. V. Ivanov, Dokl. Akad. Nauk 234(1), 176–179 (1977).
V. A. Trunilina, S. P. Roev, V. F. Makhotko, and N. V. Zayakina, Dokl. Akad. Nauk 303(4), 948–951 (1988).
S. F. Glavatskikh and A. I. Gorshkov, Dokl. Akad. Nauk 327(1), 126–130 (1992).
Q. Fang, W. Bai, J. Yang, H. Rong, N. Shi, G. Li, M. Xiong, and Z. Ma, Acta Geol. Sin. 87(5), 1275–1280 (2013).
J. C. Jamison, Science 140(3562), 72–73 (1963).
D. I. Frikh-Khar, R. V. Boyarskaya, V. M. Volkova, K. B. Kostin, and A. V. Mokhov, Int. Geol. Rev. 30(4), 422–429 (1988).
Yu. P. Dikov, A. V. Ivanov, F. Wlotzka, E. M. Galimov, and H. Wanke, Earth Planet. Sci. Lett. 155, 197–204 (1998).
A. P. Vinogradov, V. L. Barsukov, V. S. Urusov, and O. A. Bogatikov, Property of Inoxidibility of Ultradisperse Forms of Elementary Substances on the Surface of Cosmic Bodies. Discovery Certificate No. 279, registered in the State Register of Discoveries in the USSR on November 15, 1979.
K. Wang, F. Moynier, F. A. Podosek, and J. Foriel, Earth Planet. Sci. Lett. 337/338, 17–24 (2012).
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Original Russian Text © A.V. Mokhov, T.A. Gornostaeva, P.M. Kartashov, En.E. Asadulin, O.A. Bogatikov, 2015, published in Doklady Akademii Nauk, 2015, Vol. 460, No. 4, pp. 441–445.
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Mokhov, A.V., Gornostaeva, T.A., Kartashov, P.M. et al. Nanocrystals of native iron and titanium in impact glasses of the lunar regolith. Dokl. Earth Sc. 460, 118–122 (2015). https://doi.org/10.1134/S1028334X15020038
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DOI: https://doi.org/10.1134/S1028334X15020038