Ultrahigh-Pressure Liquation of an Impact Melt

T. G. Shumilova; S. I. Isaenko; B. A. Makeev; A. A. Zubov; S. N. Shanina; Ye. M. Tropnikov; A. M. Askhabov

doi:10.1134/S1028334X18050070

Ultrahigh-Pressure Liquation of an Impact Melt

Autores: Shumilova T.¹^,2, Isaenko S.¹, Makeev B.¹, Zubov A.¹, Shanina S.¹, Tropnikov Y.¹, Askhabov A.¹
Afiliações:
1. Institute of Geology, Komi Science Center, Ural Branch
2. Hawaii Institute of Geophysics and Planetology
Edição: Volume 480, Nº 1 (2018)
Páginas: 595-598
Seção: Geochemistry
URL: https://journals.rcsi.science/1028-334X/article/view/193072
DOI: https://doi.org/10.1134/S1028334X18050070
ID: 193072

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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.