CaltechAUTHORS
Published March 1966 | Version public
Journal Article Metadata-only

Liquid immiscibility in the system Na_2O-Al_2O_3-SiO_2-CO_2 at pressures to 1 kilobar

Creators

Abstract

A liquid miscibility occurs within the Quaternary system, Na_2O-Al_2O_3-SiO_2-CO_2 between Na_2 CO_3-rich liquids and NaAlSi_3O_8-rich liquids. The vapor-saturated liquidus surface does not intersect the miscibility gap at low pressures, but with increasing pressure it undergoes two discontinuous shifts toward the CO_2 apex of the tetrahedron, produced by carbonation reactions in the system Na_2O-SiO_2-CO_2. These position changes cause the vapor-saturated surface to intersect the miscibility gap. At 1 kilobar pressure on the join NaAlSi_3O_8-Na_2CO_3-CO_2, the two-liquid field occurs at temperatures above 870 degrees C.

Additional Information

© 1966 by American Journal of Science. We thank the National Science Foundation for supporting this work with Grant G 19588 and for covering publication charges with Grant GP-1870. The research and the manuscript have benefitted from our many discussions with G.W. Franz, A.J. Piwinskii, and D.H. Watkinson. Their assistance is gratefully acknowledged.

Additional details

Additional titles

Alternative title
Liquid immiscibility in the system Na2O-Al2O3-SiO2-CO2 at pressures to 1 kilobar

Identifiers

Eprint ID
63653
Resolver ID
CaltechAUTHORS:20160113-141512270

Funding

NSF
G 19588
NSF
GP-1870

Dates

Created
2016-01-13
Created from EPrint's datestamp field
Updated
2021-11-10
Created from EPrint's last_modified field

Caltech Custom Metadata

Caltech groups
Division of Geological and Planetary Sciences (GPS)