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Cation site occupancy in chlorites and illites as a function of temperature

Published online by Cambridge University Press:  09 July 2018

M. Cathelineau
M. Cathelineau*
Affiliation:
CREGU and G. S. CNRS-CREGU, B.P. 23, 54501 Vandoeuvre-les-Nancy Cedex, France
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Abstract

The relationships between the composition and the crystallization temperature of chlorites and illites have been investigated in different geothermal fields and in particular the Los Azufres system in Mexico, considered to be a natural analogue to experimental laboratories, as the main changes in physical and chemical conditions and mineralogy are related to progressively increasing temperature with depth. Temperature was estimated from combined geothermometric approaches, and especially from fluid inclusion studies on quartz coexisting with clays. The Al(IV) content in the tetrahedral site of chlorites, and the K content and total interlayer occupancy of illites increase with temperature. These chemical changes are mainly related to the marked decrease in the molar fraction of the Si(IV)-rich end-members (kaolinite for chlorites, and pyrophyllite for illites) which become negligible at ∼300°C. Other chemical changes, such as the variation in Fe and Mg contents, are partly influenced by temperature, but are strongly dependent on the geological environment, and consequently on the solution composition. The empirical relationships between chemical variables and temperature were calibrated from 150–300°C, but extrapolations at lower and higher temperatures seem possible for chlorites. Such geothermometers provide tools for estimating the crystallization temperature of the clays, and are important for the study of diagenetic, hydrothermal and low-T metamorphic processes.

Type
Research Article
Information
Clay Minerals , Volume 23 , Issue 4 , December 1988 , pp. 471 - 485
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1988

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References

Aagaard, P. & Helghson, H.C. (1983) Activity/composition relations among silicates and aqueous solutions. II: Chemical and thermodynamic consequences of ideal mixing of atoms on homological sites in montmorillonites, illites and mixed-layer clays. Clays Clay Miner. 31, 207–217.CrossRefGoogle Scholar
Aagaard, P., Roaldset, E. & Welhaven, J.E. (1988) Diagenetic observations from North Sea sandstone reservoirs: a comparison with formation water chemistry. "Clay diagenesis in hydrocarbon reservoirs and shales" Meeting, Cambridge, March 1988.Google Scholar
Audéoud D. (1982) Les mineralisations uraniferes et leur environnement a Kamoto, Kambove et Shinkolobwe ﹛Shaba, Zaire) petrographie, geochimie et inclusions fluides. Thesis, Univ. Lyon, France.Google Scholar
Bishop, B.P. & Bird, D.K. (1987) Variation in sericite compositions from fracture zones within the Coso hot springs geothermal system. Geochim. Cosmochim. Acta 51, 1245–1256.CrossRefGoogle Scholar
Bragg, W.L. (1937) Atomic Structure of Minerals. Ithaca: Cornwell University Press.Google Scholar
Bragg, L. & Claringbull, G.F. (1965) Crystal Structures of Minerals. G. Bell & Sons, Ltd., London.Google Scholar
Cathelineau, M. & Nieva, D. (1985) A chlorite solid solution geothermometer. The Los Azufres geothermal system (Mexico). Contrib. Mineral. Pet. 91, 235–244.CrossRefGoogle Scholar
Cathelineau, M., Oliver, R., Nieva, D. & Garifas, A. (1985) Mineralogy and distribution of hydrothermal mineral in Los Azufres (Mexico) geothermal field. Geothermics 14, 49–57.CrossRefGoogle Scholar
Cathelineau, M. (1987) Les interactions entre fluides et mineraux: thermometrie et modelisation. Lexemple d'un systeme geothermique actif (Los Azufres, Mexique) et (('alterations fossiles dans la Chaine Varisque. Doct. Thesis，I.NP .Nancy, France.Google Scholar
Cathelineau, M., Oliver, R. & Nieva, D. (1987) Quaternary volcanic series of the Los Azufres geothermal field (Mexico). Special vol. on Mexican Volcanic Belt. Part. 3 (Verma, S. P., editor), Geof. Int. 26, 273–290.Google Scholar
Cathelineau, M. & Izquierdo, G. (1988) Temperature-composition relationships for authigenic clay minerals in the Los Azufres geothermal system. Contrib. Mineral. Pet. (in press).CrossRefGoogle Scholar
Cathelineau, M., Izquierdo, G. & Nieva, D. (1988) Thermobarometry of hydrothermal alteration in the Los Azufres geothermal system: significance of fluid inclusion data. Chem. Geol. (in press).CrossRefGoogle Scholar
Cavaketta, G., Gianelli, G. & Puxeddu, M. (1982) Formation of authigenic minerals and their use as indicators of the chemico-physica] parameters of the fluid in the Larderello-Travele geothermal field. Econ. Geol. 77, 1071–1084.Google Scholar
Dunoyer De Segonzac, G. (1970) The transformation of clay minerals during diagenesis and low-grade metamorphism. A review. Sedimentology 15, 281–346.Google Scholar
Elders, W.A. (1979) The geological background of the geothermal field of the Salton Trough. Pp. 1–19 in: Geology and Geotermics of the Salton Trough. （Elders, W. A., editor) Geol. Soc. Am. Guidebook No 7, San Diego.Google Scholar
Fournier, R.O. & Truesdell, A.H. (1973) An empirical Na-Ca-Ca geothermometer for natural waters. Geochim. Cosmochim. Acta 47, 579–586.Google Scholar
Fournier, R.O. & Potter, R.W. (1982) A revised and expanded silica (quartz) geothermometer. Geochim, Cosmochim. Acta 43, 1543–1550.Google Scholar
Freckman, J.T. (1978) Fluid inclusion and oxygen isotope geothermometry of rock samples from Sinclair 4 and Elmore 1 boreholes, Salton Sea Geothermal Field, Imperial Valley, California, USA. Inst. Geophys. Planetary Phys., Univ. Calif., Riverside, Rep. 78/5, 66pp.Google Scholar
Frey, M., Teichmuller, M., Teichmuller, R., Mullis, J.( Kunzi, B., Breitschmid, A., Gruner, V. & Schwizer, B. (1980) Very low grade metamorphism in external part of the Central part of the Central Alps: Illite cristallinity, coal rank, and fluid inclusion data. Eclogae geol. Helv. 73, 173–203.Google Scholar
Fritz, B. (1981) Etude thermodynamique et modelisation des reactions hydrothermales et diagenetiques. Sci. Geol. Mem. 65, 197 pp.Google Scholar
Gutierrez, A.N. & Aumento, F. (1982) The Los Azufres, Michoacan, Mexico, geothermal field. J. HydroL 56, 137–162.CrossRefGoogle Scholar
Helgeson, H.C. (1968) Geologic and thermodynamic characteristics of the Salton sea Geothermal system. Am. J. Sci. 266, 129–166.CrossRefGoogle Scholar
Kublhr, B. (1967) La cristallinite de Tillite et les zones tout a fait superieures du metamorphisme. Etages tectoniques. Coll. Neuchatel 105–122.Google Scholar
Kubler, B. (1969) Evaluation quantitative du metamorphisme par la cristallinite de Tillite. Bull Centre Rech. Pau, SNPA 212, 385-397.Google Scholar
McDowell, S.D. & Elders, W.A. (1980) Authigenic layer silicate minerals in borehole Elmore 1, Salton Sea geothermal field, California, USA. Contrib. Mineral. Pet. 74, 293–310.CrossRefGoogle Scholar
Meunier, J.D. (1984) Les phenomenes d'xydo-reduction dans un gisement urano-vanadifere de type tabulaire: les gres du Salt-Wash (Jurassique Superieur), district minier de Cottonwood-Wash (Utah, Etats Unis). Geol. Geoch. Uranium, Mem. Nancy 4, 200 pp.Google Scholar
Nieva, D., Quijano, L., Garfias, A., Barragan, R.M. & Laredo, F. (1983) Heterogeneity of the liquid phase, and vapor separation in the Los Azufres (Mexico), geothermal reservoir. Proc. 9th Workshop Geothermal Res. Eng. Stanford Univ. SGP-TR-74.Google Scholar
Perry, E.A. & Hower, J. (1970) Burial diagenesis in Gulf Coast pelitic sediments. Clays Clay Miner. 18,165-178.CrossRefGoogle Scholar
Reynolds, R.C. & Hower, J. (1970) The nature of interlayering in mixed-layered illite-montmorillonites. Clays Clay Miner. 18, 25–36.CrossRefGoogle Scholar
Schoen, R. & White, D.E. (1966) Hydrothermal clay minerals in granodiorite in the Main Terrace Steambot Springs, Nevada. Clays Clay Miner. 13, 121–122.Google Scholar
Steiner, A. (1968) Clay minerals in hydrothermally altered rocks at Wairakei, New Zealand. Clays Clay Miner. 16, 193–213.CrossRefGoogle Scholar
Stoessel, R.K. (1979) A regular site-mixing model for illites. Geochim. Cosmochim. Acta 43, 1151–1159.CrossRefGoogle Scholar
Stoessel, R.K. (1984) Regular solution site-mixing model for chlorites. Clays Clay Miner. 32, 205–212. CrossRefGoogle Scholar
Sveibjornsdottir, A. (1986) The chemical characteristics of the hydrothermal fluids at the Krafla and Reykjanes systems, as inferred from the coexisting mineralogy. Proc. 5th Int. Sym. Water Rock Interaction, Reykjavik, Iceland 546–549.Google Scholar
Tardy, Y. & Fritz, B. (1981) An ideal solid solution model for calculating solubility of clay minerals. Clay Miner. 16, 361–373.CrossRefGoogle Scholar
Thompson, J.B. Jr. & Thompson, A.B. (1976) A model system for mineral facies in pelitic schists. Contrib. Mineral. Pet. 58, 3–55.CrossRefGoogle Scholar
Thompson, J.B., Laird, J. & Thompson, A.B. (1982) Reactions in amphibolite, greenschist and blueschist. J. Pet. 1, 1–27.Google Scholar
Tomason, J. & Kristmannsdottir, H. (1972) High temperature alteration minerals and thermal brines, Reykjanes, Iceland. Contrib. Mineral. Pet. 36, 123–134.Google Scholar
Velde, B. (1977) Clays and clay minerals in natural and synthetic systems. Developments in Sedimentology, 21. Elsevier, Amsterdam.Google Scholar
Velde, B. (1985) Clay minerals. A physico-chemical explanation of their occurrence. Developments in Sedimentology, 40. Elsevier, Amsterdam Google Scholar
Weaver, C.E. (1959) The clay petrology of sediments. Clays Clay Miner. 6, 154–187.CrossRefGoogle Scholar