High-Temperature Vaporization in the Albite-Orthoclase System

Details High-Temperature Vaporization in the Albite-Orthoclase System High-Temperature Vaporization in the Albite-Orthoclase System

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27.1465y&link_type=abstract

Lunar and Planetary Science, volume 27, page 1465

Computer Science

Albite, Condensation, Potassium: Evaporation, Sodium: Evaporation, Vaporization

Scientific paper

In the present work we have investigated the relative volatilities of K, Na, Al and Si in the albite-orthoclase system under high-temperature pulse heating simulating an impact vaporization process. We have prepared seven samples with various proportions of albite to orthoclase and performed high-temperature vaporization using a powerful laser pulse. Condensed products were collected and analyzed. The main results of the experiments are: (1) the volatility of alkalis is smaller than the volatility of Si; (2) K is less volatile than Na and its volatility decreases with increasing orthoclase content of the target; and (3) volatilization proceeds with formation of a nepheline type molecular cluster (Na:Al:Si = 1:1:1) giving a condensate composed mainly of nepheline and SiO2 components.

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