Ultrahigh-Pressure Liquation of an Impact Melt
- Authors: Shumilova T.G.1,2, Isaenko S.I.1, Makeev B.A.1, Zubov A.A.1, Shanina S.N.1, Tropnikov Y.M.1, Askhabov A.M.1
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Affiliations:
- Institute of Geology, Komi Science Center, Ural Branch
- Hawaii Institute of Geophysics and Planetology
- Issue: Vol 480, No 1 (2018)
- Pages: 595-598
- Section: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/193072
- DOI: https://doi.org/10.1134/S1028334X18050070
- ID: 193072
Cite item
Abstract
Liquation structures were described in ultrahigh-pressure impact glasses of the Kara astrobleme (Pay-Khoy) with differentiation into the bisilica, aluminosilicate, and ore components for the first time. The sequence of differentiation of mineral phases upon solidification of an ultrahigh-pressure impact melt was established: coesite, silicate glass, augite, aluminosilicate glass of albite composition, and pyrite. The discovered impact glasses are highly resistant to postimpact alterations.
About the authors
T. G. Shumilova
Institute of Geology, Komi Science Center, Ural Branch; Hawaii Institute of Geophysics and Planetology
Author for correspondence.
Email: shumilova@geo.komisc.ru
Russian Federation, Syktyvkar; Honolulu
S. I. Isaenko
Institute of Geology, Komi Science Center, Ural Branch
Email: shumilova@geo.komisc.ru
Russian Federation, Syktyvkar
B. A. Makeev
Institute of Geology, Komi Science Center, Ural Branch
Email: shumilova@geo.komisc.ru
Russian Federation, Syktyvkar
A. A. Zubov
Institute of Geology, Komi Science Center, Ural Branch
Email: shumilova@geo.komisc.ru
Russian Federation, Syktyvkar
S. N. Shanina
Institute of Geology, Komi Science Center, Ural Branch
Email: shumilova@geo.komisc.ru
Russian Federation, Syktyvkar
Ye. M. Tropnikov
Institute of Geology, Komi Science Center, Ural Branch
Email: shumilova@geo.komisc.ru
Russian Federation, Syktyvkar
A. M. Askhabov
Institute of Geology, Komi Science Center, Ural Branch
Email: shumilova@geo.komisc.ru
Russian Federation, Syktyvkar