Two Genetic Types of Pseudotachylytes

Unusual metasomatites (phyolithites) in the Kolvitskiy gabbro-anorthosite rock mass: composition and structural position

“…The glass has a main-ultrabasic composition, and in some analyses the К2O content reaches 5 % by weight. By the fact of the glass presence, conglomerate-breccias are close to pseudotachylites [22]. At the same time, their large thickness, the main-ultrabasic composition of the glass, and the presence of high-temperature neoplasms allow to consider them as a special type of rocksfluidizates formed during the flow of incandescent suspension masses inside the earth's crust [16].…”

“…Fig.5. Electron microscopic images (BSE mode) of metasomatite (A), garnet with inclusions of chlorite, Muscovite-phengite, microcline (B) (b, dmode SE)Grtgarnet (light gray),points of analysis(1,8,9,33,34,36, 45, 46); Cpxclinopyroxene diopside (gray), (39-41, 49-51), Chl -chlorite (grey),(31,35, 38, 43, 47); Ampamphibole (gray), (6a, 7, 32); Sel -Ba-aluminoseladonite(white),(2,3,22); Ms -Muscovite-phengite (dark gray),(6,21,23,25, 37, 44); Btbiotite (gray), (1); Abalbite (black), (4, 42);Ananorthite (gray),(4,5,7,24); Kfsmicrocline (gray), (2); Ploligoclase (gray), (5а, 9а)…”