Synthetic fluid inclusions. V. Solubility relations in the system NaCl-KCl-H sub 2 O under vapor-saturated conditions
- Virginia Polytechnic Institute and State Univ., Blacksburg (USA)
Vapor-saturated solubility relationships in the system NaCl-KCl-H{sub 2}O have been determined by experimentally synthesizing fluid inclusions in quartz in the presence of known brine compositions and then measuring the dissolution temperatures of halite and/or sylvite daughter crystals within the inclusions using a microscope equipped with a heating stage. These data, along with other literature values have been used in a stepwise multiple regression routine to generate a series of equations describing vapor-saturated solubility relations within the halite, sylvite and hydrohalite stability fields. These equations, together with a recently published equation for the ice stability field have been used to construct the complete vapor-saturated solubility surface in the NaCl-KCl-H{sub 2}O ternary system. The diagram may be used in the interpretation of microthermometric data to determine the compositions of fluid inclusions approximated by the NaCl-KCl-H{sub 2}O system. Solubility data obtained from synthetic fluid inclusions are in good agreement with recently published data for the KCl-H{sub 2}O and NaCl-H{sub 2}O binary systems but are at variance with some earlier works.
- OSTI ID:
- 5152739
- Report Number(s):
- CONF-8701162--
- Journal Information:
- Geochimica et Cosmochimica Acta; (USA), Journal Name: Geochimica et Cosmochimica Acta; (USA) Vol. 52:5; ISSN GCACA; ISSN 0016-7037
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of CaCl/sub 2/ and FeCl/sub 2/ on phase relations for the halite trend
Phase relations in the system NaCl-KCl-H sub 2 O: IV. Differential thermal analysis of the sylvite liquidus in the KCl-H sub 2 O binary, the liquidus in the NaCl-KCl-H sub 2 O ternary, and the solidus in the NaCl-KCl binary to 2 kb pressure, and a summary of experimental data for thermodynamic-PTX analysis of solid-liquid equilibria at elevated P-T conditions
Related Subjects
580000* -- Geosciences
ALKALI METAL COMPOUNDS
BRINES
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
FLUIDS
GEOCHEMISTRY
GEOTHERMOMETRY
HALIDES
HALOGEN COMPOUNDS
INCLUSIONS
KINETICS
MATERIALS
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
QUARTZ
REACTION KINETICS
SALINITY
SATURATION
SILICON COMPOUNDS
SILICON OXIDES
SODIUM CHLORIDES
SODIUM COMPOUNDS
SOLUBILITY
SYNTHETIC MATERIALS