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- Title
Genesis of Charoite Rocks in the Murun Massif, Aldan Shield, Russia.
- Authors
Vladykin, N. V.; Borovikov, A. A.; Dokuchits, E. Yu.; Thomas, V. G.
- Abstract
Abstract—: Data on mineral-hosted inclusions indicate that the charoite rocks crystallized in a heterogeneous medium of carbonate-silicate and carbonate melts, gaseous and H2O-salt fluids. Our results indicate that the early rock-forming minerals of the charoite rocks started to crystallize at high temperatures (>800°C), and crystallization may have terminated at lower temperatures (600-450°С). Data on the melt and fluid inclusions confirm the conclusion that the charoite rocks are of magmatic origin. The facts that these rocks are typically found as vein- and lens-shaped bodies, the composition of these rocks does not correlate with the composition of the host rocks, and the occurrence of chilled fine-grained domains of the charoite rocks also suggest that these rocks crystallized from magmatic melt.
- Subjects
RUSSIA; CHAROITE; INHOMOGENEOUS materials; CARBONATE analysis; GEOCHEMISTRY; ROCK-forming minerals
- Publication
Geochemistry International, 2018, Vol 56, Issue 12, p1135
- ISSN
0016-7029
- Publication type
Article
- DOI
10.1134/S0016702918120108