A phase equilibrium study in the system KAlSi3O8-NaAlSi3O8- SiO2-Al2SiO5-H2O and petrogenetic implications

D. B. Joyce; D. E. Voigt

A phase equilibrium study in the system KAlSi₃O₈-NaAlSi₃O₈- SiO₂-Al₂SiO₅-H₂O and petrogenetic implications

D. B. Joyce
, D. E. Voigt

Geosciences

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The effect of saturating haplogranitic melts with sillimanite at 2 kbar was examined by determining near-eutectic or near-minimum melt phase relations in the sillimanite-free and sillimanite-saturated haplogranite systems. Three series of compositions were studied with Ab/(Ab + Sa) ratios of 0, 0.545, and 1.0. The solubility of sillimanite in these melts was found to be insensitive to P and T over the range studied, 2.0 and 6.0 kbar, 680-900°C, but preliminary experiments indicate that it is increased by the presence of mafic components. This lowering of the minimum-melt temperature may explain the observation of apparently primary magmatic andalusite in some granitic rocks. -from Authors

Original language	English (US)
Pages (from-to)	504-512
Number of pages	9
Journal	American Mineralogist
Volume	79
Issue number	5-6
State	Published - 1994

All Science Journal Classification (ASJC) codes

Geophysics
Geochemistry and Petrology

Cite this

@article{e3f1c557b977478a9df5b79683289099,

title = "A phase equilibrium study in the system KAlSi3O8-NaAlSi3O8- SiO2-Al2SiO5-H2O and petrogenetic implications",

abstract = "The effect of saturating haplogranitic melts with sillimanite at 2 kbar was examined by determining near-eutectic or near-minimum melt phase relations in the sillimanite-free and sillimanite-saturated haplogranite systems. Three series of compositions were studied with Ab/(Ab + Sa) ratios of 0, 0.545, and 1.0. The solubility of sillimanite in these melts was found to be insensitive to P and T over the range studied, 2.0 and 6.0 kbar, 680-900°C, but preliminary experiments indicate that it is increased by the presence of mafic components. This lowering of the minimum-melt temperature may explain the observation of apparently primary magmatic andalusite in some granitic rocks. -from Authors",

author = "Joyce, \{D. B.\} and Voigt, \{D. E.\}",

year = "1994",

language = "English (US)",

volume = "79",

pages = "504--512",

journal = "American Mineralogist",

issn = "0003-004X",

publisher = "Walter de Gruyter GmbH",

number = "5-6",

}

TY - JOUR

T1 - A phase equilibrium study in the system KAlSi3O8-NaAlSi3O8- SiO2-Al2SiO5-H2O and petrogenetic implications

AU - Joyce, D. B.

AU - Voigt, D. E.

PY - 1994

Y1 - 1994

N2 - The effect of saturating haplogranitic melts with sillimanite at 2 kbar was examined by determining near-eutectic or near-minimum melt phase relations in the sillimanite-free and sillimanite-saturated haplogranite systems. Three series of compositions were studied with Ab/(Ab + Sa) ratios of 0, 0.545, and 1.0. The solubility of sillimanite in these melts was found to be insensitive to P and T over the range studied, 2.0 and 6.0 kbar, 680-900°C, but preliminary experiments indicate that it is increased by the presence of mafic components. This lowering of the minimum-melt temperature may explain the observation of apparently primary magmatic andalusite in some granitic rocks. -from Authors

AB - The effect of saturating haplogranitic melts with sillimanite at 2 kbar was examined by determining near-eutectic or near-minimum melt phase relations in the sillimanite-free and sillimanite-saturated haplogranite systems. Three series of compositions were studied with Ab/(Ab + Sa) ratios of 0, 0.545, and 1.0. The solubility of sillimanite in these melts was found to be insensitive to P and T over the range studied, 2.0 and 6.0 kbar, 680-900°C, but preliminary experiments indicate that it is increased by the presence of mafic components. This lowering of the minimum-melt temperature may explain the observation of apparently primary magmatic andalusite in some granitic rocks. -from Authors

UR - https://www.scopus.com/pages/publications/0028594353

UR - https://www.scopus.com/pages/publications/0028594353#tab=citedBy

M3 - Article

AN - SCOPUS:0028594353

SN - 0003-004X

VL - 79

SP - 504

EP - 512

JO - American Mineralogist

JF - American Mineralogist

IS - 5-6

ER -

A phase equilibrium study in the system KAlSi₃O₈-NaAlSi₃O₈- SiO₂-Al₂SiO₅-H₂O and petrogenetic implications

Abstract

All Science Journal Classification (ASJC) codes

Other files and links

Fingerprint

Cite this