Fluid immiscibility in natural processes; use and misuse of fluid inclusion data; I, Phase equilibria analysis; a theoretical and geometrical approach

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doi: 10.1016/0009-2541(82)90064-X
Authors:Pichavant, Michel; Ramboz, Claire; Weisbrod, Alain
Author Affiliations:Primary:
Cent. rech. pétrographiques géochimiques, Vanduvre-les-Nancy 54501, France
Other:
Vrije Univ., Amsterdam, Netherlands
Volume Title:Current research on fluid inclusions
Volume Authors:Kreulen, Rob, editor; Touret, Jacques
Source:Chemical Geology, 37(1-2), p.1-27; Current research on fluid inclusions; a symposium organized by the European Working Group on Fluid Inclusions, Utrecht, Netherlands, April 22-24, 1981, edited by Rob Kreulen and Jacques Touret. Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0009-2541
Publication Date:1982
Note:In English. 3 p. refs.
Summary:The term 'chemical immiscibility' is unambiguously redefined as a multiphase multi-component equilibrium. The consequences of this definition are directly derived from the phase rule and concern the possible equations that relate the various parameters (T, P, volumes, compositions) to each other. These equations already put constraints on the topology of the phase equilibria in fluid systems. A particular expression of the phase rule is proposed, which takes into account the multiphase-constant bulk volume-constant bulk composition constraints in fluid inclusions. The consequences of such an expression are of major importance in fluid-inclusion studies. The phase relations of some simple systems that approximate to the natural complex fluids are detailed. The effects of these topologies and of the supplementary constraints (constant bulk composition and constant bulk volume) assumed for fluid inclusions (isopleth - isochoric systems) are discussed. [P.Br.]
Subjects:Composition; Fluid inclusions; Immiscibility; Inclusions; Magmas; P-T conditions; Phase equilibria; Phase rule; Theoretical studies; CO<2`-CH<4`; H<2`O-CO<2`; H<2`O-CO<2`-NaCl; H<2`O-NaCl
Abstract Numbers:83M/2902
Record ID:1984003030
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom, Reference includes data from PASCAL, Institute de l'Information Scientifique et Technique
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