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Náttúrufræðingurinn - 1981, Síða 59

Náttúrufræðingurinn - 1981, Síða 59
D'Amore, F. & C. Panichi. 1980. Evaluation of deep tcmperatures of hydrothermal systems by a new gas geothermometer. Geochim Cosmochim. Acta. 44: 549 — 556. I’Jhs, A.J. 1979. Chemical geothermometry in geothermal systems. Chemical Geo- logy 25: 219-226. — & S.H. Wilson. 1960. The geochemistry of alkali metal ions in the Wairakei hydrothermal system. N.Z.J. Geol. Geophys. 3: 593—617. Fouillac, C. & C. Michard. 1979. Sodium lithium ratio in water applied to geo- thermometry of geothermal reservoirs. Fjölrituð skýrsla. Foumier, R.O. 1973. Silica in thermal waters: laboratory and field investigations. I riti International Symposium on Hydrogeo- chemistry and Biogeochemistry, Japan, 1970, 1: 122—139. Washington D.C., The Clark Co. — 1977. Chemical g'eothermometers and mixing models for geothermal systems. Geothermics. 5: 41—50. - 1979a. Note: Calculation of the thermo- dynamic properties of aqueous silica and the solubility of quartz and its poly- morphs at high pressures and tempera- tures. Amer. J. Sci. 279: 1070- 1078. — 1979b. A revised equation for the Na/K geothermometer. Geothermal Resources Council, Transactions. 3: 221 — 224. — & J.J. Rowe. 1966. Estimation of under- ground temperatures from the silica content of water from hot springs and wet steam wells. Amer. J. Sci. 264: 685-697. — & A.H. Truesdell. 1973. An empirical Na-K-Ca geothermometer for natural waters. Geochim. Cosmochim. Acta. 37: 1255-1275. — & R.W. Potter II. 1979. Magnesium correction to the Na-K-Ca chemical geothermometer. Geochim. Cosmochim. Acta. 43: 1543-1550. Garrels, R.M. & C.L. Christ. 1965. Solutions, Minerals and Equilibria. 450 bls., Harper & Row, New York. Helgeson, H.C. 1969. Thermodynamics of hydrothermal systems at elevated temperatures and pressures. Amer. J. Sci. 267: 729-804. — & D.H. Kirkham. 1974. Theoretical pre- diction of the thermodynamic behaviour of aqueous electrolytes at high pressures and temperatures. II. Debye-Huckel parameters for activity coefficients and relative partial molal properties. Amer. J.Sci. 274: 1199-1261. Kennedy, G.C. 1950. A portion of the system silica-water. Econ. Geol. 45: 629—653. Kielland, J. 1937. Individual activity coeffi- cients of ions in aqueous solutions. Am. Chem. Soc. Jour. 59: 1675—1678. Mahon, W.A.J. 1966. Silica in hot water dis- charged from drillholes at Wairakei, New Zealand. N.Z. J.Sci. 9: 135— 144. Michard, G., G. Ouzounian, C. Fouillac & G. Sarazin. 1979. Controle des concen- trations d’aluminium dissous dans les eaux de sources thermales. Geochim. Cosmochim. Acta. 43: 147— 155. Morey, G.W., R.O. Fournier & J.J. Rowe. 1962. The solubility of quartz in water in the temperature interval from 25° to 300°C. Geochim. Cosmochim. Acta, 26: 1029 — 1043. Paces, t. 1975. A systematic deviation from the Na-K-Ca geothermometer below 75°C and above 10—4 atm. Pco2. Geochim. Cosmochim. Acta 39: 541 — 544. Pálmason, Guðmundur, Stefán Arnórsson, Ingvar Birgir Friðleifsson, Leó Kristjánsson, Hrefna Kristmannsdóllir, Kristján Sæmundsson, Val- garður Stefánsson, Benedikt Steingrímsson og Jens Tómasson. 1978. The Iceland crust: evidence from drillhole data on structure and processes. I riti Second Maurice Ewing Symposium: Indications of Deep Drilling Results in the Atlantic Ocean, Argon House, Tuxedo, New York. Pitzer, K.S. 1937. The heats of ionization of water, ammonium hydroxide, carbonic, phosphoric, and sulphuric acids: The variation of ionization constants with temperature and entropy change with ionization. Am. Chem. Soc. Jour. 59: 2365-2371. Seward, T.M. 1974. Determination of the first ionization constant of silicic acid from 137

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