Quick
Search: 		  
advanced search
 GSW Home   GeoRef Home   My GSW Alerts   Contact GSW   About GSW   Journals List   Help 
American Mineralogist Don't get GSW? Talk to your librarian.
JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
American Mineralogist; December 1983; v. 68; no. 11-12; p. 1059-1075
This Article
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Order Hardcopy of Full Text via AGI/GeoRef
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Bowers, T. S.
Right arrow Articles by Helgeson, H. C.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation

Calculation of the thermodynamic and geochemical consequences of nonideal mixing in the system H 2 O-CO 2 -NaCl on phase relations in geologic systems; metamorphic equilibria at high pressures and temperatures

Teresa Suter Bowers, and Harold C. Helgeson

Univ. Calif., Dep. Geol. and Geophys., Berkeley, CA, United States

Fluid inclusion analyses reported in the literature, together with experimental data and thermodynamic calculations indicate that nonideality in the system H 2 O-CO 2 -NaCl may have a profound effect on phase relations in metamorphic processes. High concentrations of NaCl in the system H 2 O-CO 2 -NaCl increase substantially the size of the two-phase (liquid + vapor) region by raising the consolute temperature for a given pressure and ratio of the mole fractions of H 2 O and NaCl to more than double that in the binary system H 2 O-CO 2 . As a consequence, fluid immiscibility may occur at considerable depth during progressive metamorphism of siliceous carbonates. The effect of nonideal mixing of H 2 O, CO 2 and NaCl on equilibrium constraints in metamorphic systems can be assessed quantitatively on phase diagrams generated with the aid of a modified Redlich-Kwong equation of state (Bowers and Helgeson, 1983). Diagrams of this kind indicate that increasing NaCl concentration results in higher temperatures and/or lower predicted values of X co2 for equilibrium mineral assemblages than would be true for the binary system H 2 O-CO 2 . Transection of various mineral stability fields by saturation lines representing equilibrium between the aqueous phase and calcite, dolomite, or magnesite on logarithmic activity diagrams is also highly sensitive to the NaCl concentration in the aqueous phase.--Modified journal abstract.

This record provided courtesy of AGI/GeoRef.




This article has been cited by other articles:


Home page
 ajsHome page
F. Le Hebel, S. Fourcade, M.-C. Boiron, M. Cathelineau, R. Capdevila, and D. Gapais
Fluid history during deep burial and exhumation of oil-bearing volcanics, Hercynian Belt of southern Brittany, France
Am J Sci, November 1, 2007; 307(9): 1096 - 1125.
[Abstract] [Full Text] [PDF]

Home page
 Economic GeologyHome page
S. Tombros, S. Tombros, K. St. Seymour, A. E. Williams-Jones, and P. G. Spry
The Genesis of Epithermal Au-Ag-Te Mineralization, Panormos Bay, Tinos Island, Cyclades, Greece
Economic Geology, November 1, 2007; 102(7): 1269 - 1294.
[Abstract] [Full Text] [PDF]

Home page
 Reviews in Mineralogy and GeochemistryHome page
J. D. Webster and C. W. Mandeville
Fluid Immiscibility in Volcanic Environments
Reviews in Mineralogy and Geochemistry, July 1, 2007; 65(1): 313 - 362.
[Full Text] [PDF]

Home page
 Reviews in Mineralogy and GeochemistryHome page
W. Heinrich
Fluid Immiscibility in Metamorphic Rocks
Reviews in Mineralogy and Geochemistry, July 1, 2007; 65(1): 389 - 430.
[Full Text] [PDF]

Home page
 Economic GeologyHome page
J. L. Mair, R. J. Goldfarb, C. A. Johnson, C. J. R. Hart, and E. E. Marsh
Geochemical Constraints on the Genesis of the Scheelite Dome Intrusion-Related Gold Deposit, Tombstone Gold Belt, Yukon, Canada
Economic Geology, May 1, 2006; 101(3): 523 - 553.
[Abstract] [Full Text] [PDF]

Home page
 American MineralogistHome page
S. C. Penniston-Dorland and J. M. Ferry
Coupled dichotomies of apatite and fluid composition during contact metamorphism of siliceous carbonate rocks
American Mineralogist, October 1, 2005; 90(10): 1606 - 1618.
[Abstract] [Full Text] [PDF]

Home page
 J PetrologyHome page
M. P. SMITH, P. HENDERSON, T. E. R. JEFFRIES, J. LONG, and C. T. WILLIAMS
The Rare Earth Elements and Uranium in Garnets from the Beinn an Dubhaich Aureole, Skye, Scotland, UK: Constraints on Processes in a Dynamic Hydrothermal System
J. Petrology, March 1, 2004; 45(3): 457 - 484.
[Abstract] [Full Text] [PDF]

Home page
 Reviews in Mineralogy and GeochemistryHome page
R. Klemd
Fluid Inclusions in Epidote Minerals and Fluid Development in Epidote-Bearing Rocks
Reviews in Mineralogy and Geochemistry, January 1, 2004; 56(1): 197 - 234.
[Full Text] [PDF]

Home page
 Economic GeologyHome page
J. Mao, Y. Li, R. Goldfarb, Y. He, and K. Zaw
Fluid Inclusion and Noble Gas Studies of the Dongping Gold Deposit, Hebei Province, China: A Mantle Connection for Mineralization?
Economic Geology, May 1, 2003; 98(3): 517 - 534.
[Abstract] [Full Text] [PDF]

Home page
 Economic GeologyHome page
B. R. Anderson, B. R. Anderson, J.B. Gemmell, and R. F. Berry
The Geology of the Nifty Copper Deposit, Throssell Group, Western Australia: Implications for Ore Genesis
Economic Geology, November 1, 2001; 96(7): 1535 - 1565.
[Abstract] [Full Text] [PDF]

Home page
 Can MineralHome page
S. Salvi
MINERAL AND FLUID EQUILIBRIA IN Mo-BEARING SKARN AT THE ZENITH DEPOSIT, SOUTHWESTERN GRENVILLE PROVINCE, RENFREW AREA, ONTARIO, CANADA
Can Mineral, August 1, 2000; 38(4): 937 - 950.
[Abstract] [Full Text] [PDF]

Home page
 Economic GeologyHome page
Y. Jia, Y. Jia, X. Li, and R. Kerrich
A Fluid Inclusion Study of Au-Bearing Quartz Vein Systems in the Central and North Deborah Deposits of the Bendigo Gold Field, Central Victoria, Australia
Economic Geology, May 1, 2000; 95(3): 467 - 494.
[Abstract] [Full Text] [PDF]

Home page
 Journal of the Geological SocietyHome page
I. S. SANDERS
Exhumed lower crust in NW Ireland, and a model for crustal conductivity
Journal of the Geological Society, February 1, 1991; 148(1): 131 - 135.
[Abstract] [PDF]


JOURNAL HOME HELP CONTACT PUBLISHER SUBSCRIBE ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 2008 by Mineralogical Society of America