%0 Journal Article %1 kress_etal:1988 %A Kress, V. %A Williams, Q. %A Carmichael, I. %D 1988 %J Geochimica et Cosmochimica Acta %K %N 2 %P 283--293 %R 10.1016/0016-7037(88)90084-1 %T Ultrasonic investigation of melt in the system Na2O--Al2O3--SiO2 %U http://dx.doi.org/10.1016/0016-7037(88)90084-1 %V 52 %X Longitudinal acoustic velocities have been measured for liquids in the system Na2O---Al2O3---SiO2 spanning much of the composition range Na2SiO3---NaAlSiO4---SiO2. Measurements were made at temperatures between 1185C and 1620C, using the technique of ultrasonic interferometry. Sound speeds, and therefore bulk moduli, show a general increase with increasing alumina content. This trend is explained qualitatively in terms of a molecular model of the effect of sodium and aluminum on the structure and dominant compression mechanism of silicate liquids. We present a computational model for estimation of both sound velocities and isothermal compressibilities within much of the compositional ternary Na2SiO3---NaAlSiO4---SiO2. Implications of these results for the high pressure anhydrous melting curve of albite (NaAlSi3O8) are also discussed. Acoustic velocities are presented for liquid sodium chloride in order to provide a basis for comparison with data from other laboratories.

@article{kress_etal:1988, abstract = {Longitudinal acoustic velocities have been measured for liquids in the system Na2O---Al2O3---SiO2 spanning much of the composition range Na2SiO3---NaAlSiO4---SiO2. Measurements were made at temperatures between 1185C and 1620C, using the technique of ultrasonic interferometry. Sound speeds, and therefore bulk moduli, show a general increase with increasing alumina content. This trend is explained qualitatively in terms of a molecular model of the effect of sodium and aluminum on the structure and dominant compression mechanism of silicate liquids. We present a computational model for estimation of both sound velocities and isothermal compressibilities within much of the compositional ternary Na2SiO3---NaAlSiO4---SiO2. Implications of these results for the high pressure anhydrous melting curve of albite (NaAlSi3O8) are also discussed. Acoustic velocities are presented for liquid sodium chloride in order to provide a basis for comparison with data from other laboratories.}, added-at = {2012-09-01T13:08:21.000+0200}, author = {Kress, V. and Williams, Q. and Carmichael, I.}, biburl = {https://www.bibsonomy.org/bibtex/283b211fffe790b58d2ebf67699e61f6d/nilsma}, doi = {10.1016/0016-7037(88)90084-1}, interhash = {74db2d6eb6a511f193cdc5106daed3bd}, intrahash = {83b211fffe790b58d2ebf67699e61f6d}, issn = {00167037}, journal = {Geochimica et Cosmochimica Acta}, keywords = {}, month = feb, number = 2, pages = {283--293}, timestamp = {2021-02-09T13:26:58.000+0100}, title = {Ultrasonic investigation of melt in the system Na2O--Al2O3--SiO2}, url = {http://dx.doi.org/10.1016/0016-7037(88)90084-1}, volume = 52, year = 1988 }