Abstract:Crystal inclusions (plagioclase, biotite, magnetite) and melt inclusions were studied in minerals of the Laleaua Albà dacite (Baia Sprie, Romania). Electron microprobe analysis of 29 melt inclusions in the plagioclase, K-feldspar, and quartz confirm that crystallization of these minerals took place from typical silicic melts enriched in potassium relative to sodium (K 2 O/Na 2 O = 1.5). The sum of the petrogenic components is 92-99 wt%. This points to a possible change in water content from 8 to 1 wt% during c… Show more
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