Quartz forming conditions in secant veins in granodiorites of the Andean intrusive complex of the Barchans Islands (Аrgentine Islands, West Antarctic)
It is established that the growth of quartz in veins in granodiorites of the Andean intrusive complex (the Barchans Islands, West Antarctic) happened in rock crystalbearing veins of steep falling, in which the temperature difference necessary for the dissolution of massive quartz and crystallizat...
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| Datum: | 2018 |
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| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Видавничий дім "Академперіодика" НАН України
2018
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| Schriftenreihe: | Доповіді НАН України |
| Schlagworte: | |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/141148 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Quartz forming conditions in secant veins in granodiorites of the Andean intrusive complex of the Barchans Islands (Аrgentine Islands, West Antarctic) / I.М. Naumko, G.V. Аrtemenko, V.G. Bakhmutov, O.P. Vovk, L.F. Теlepko, B.E. Sakhno // Доповіді Національної академії наук України. — 2018. — № 4. — С. 74-80. — Бібліогр.: 15 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | It is established that the growth of quartz in veins in granodiorites of the Andean intrusive complex (the Barchans
Islands, West Antarctic) happened in rock crystalbearing
veins of steep falling, in which the temperature difference
necessary for the dissolution of massive quartz and crystallization of its transparent variety in the shape of perfectly
cut crystals in central parts of secant veins was reached. The discovered enrichment of the fluid medium of the
quartz crystallization with СО₂, NaCl, and ÊCl indicates a carbonatehaloid
composition of quartzforming
fluids,
which favoured the formation of jewelry and technologically perfect crystals, possibly having piezoelectric properties
similar to crystals of quartz both from rockcrystalbearing
veins of the Nearpolar
Ural and those synthesized under
laboratory conditions. As a conclusion, the connection of quartzforming
fluids and the postmagmatic processes
in a granodiorite intrusion is justified, and the view of investigated quartz veins as formations of posttectonic
hydrothermal stage is confirmed and expanded. |
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