Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-23T20:06:05.580Z Has data issue: false hasContentIssue false

Chlorite and chloritization processes through mixed-layer mineral series in low-temperature geological systems – a review

Published online by Cambridge University Press:  02 January 2018

D. Beaufort*
Affiliation:
IC2MP, CNRS-UMR 7285, Hydrasa, University of Poitiers, Bâtiment B35, 6 Rue Michel Brunet, TSA 51106, 86073 Poitiers Cedex 9, France
C. Rigault
Affiliation:
IC2MP, CNRS-UMR 7285, Hydrasa, University of Poitiers, Bâtiment B35, 6 Rue Michel Brunet, TSA 51106, 86073 Poitiers Cedex 9, France
S. Billon
Affiliation:
IC2MP, CNRS-UMR 7285, Hydrasa, University of Poitiers, Bâtiment B35, 6 Rue Michel Brunet, TSA 51106, 86073 Poitiers Cedex 9, France
V. Billault
Affiliation:
IC2MP, CNRS-UMR 7285, Hydrasa, University of Poitiers, Bâtiment B35, 6 Rue Michel Brunet, TSA 51106, 86073 Poitiers Cedex 9, France
A. Inoue
Affiliation:
Department of Earth Sciences, Chiba University, 263-8522 Chiba, Japan
S. Inoue
Affiliation:
Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
P. Patrier
Affiliation:
IC2MP, CNRS-UMR 7285, Hydrasa, University of Poitiers, Bâtiment B35, 6 Rue Michel Brunet, TSA 51106, 86073 Poitiers Cedex 9, France

Abstract

This present study provides an overview of the clay-mineral reactions involved in the chloritization process in a mixed-layer mineral series, and focuses on the properties of the resulting lowtemperature chlorites (formed at <220°C) in diagenetic and hydrothermal systems. According to the literature, most chlorite species occurring in low-temperature geological systems are derived fromspecific clay precursors except for direct precipitates from solution in veins. In addition, three main types of clay-mineral series have been associated with these chloritization processes: saponite-to-chlorite, berthierineto- chlorite and kaolinite-to-sudoite reactions. The conversion of saponite to chlorite results in the most common sequence of trioctahedral clay minerals related to the occurrence of Mg-Fe trioctahedral chlorite in a wide variety of hydrothermal and diagenetic to very low-grade metamorphism environments. Two models were proposed in the literature to describe the saponite-to-chlorite conversion through corrensite. The first model is a continuous transition model based on solid-state transformation (SST) mechanisms and is valid in rock-dominated systems (closed micro-systems with very low fluid-rock ratios). The second model is a stepwise transition model based on dissolution-crystallization mechanisms (DC) and is efficient in fluid-dominated systems (open systems with high fluid-rock ratio). The berthierine to Fechlorite transition results in a sequence of trioctahedral phases which are related to chloritization processes in iron-rich and reducing environments. This transformation is a cell-preserved phase transition dominated by a SST mechanismthat operates simultaneously in different domains of the parental mineral and may be considered as a polymorphic mineral reaction. Finally, the conversion of kaolinite to sudoite (Al-Mg ditrioctahedral chlorite) has not been documented like the other two aforementioned conversion series. Despite the scarcity of detailed investigations, the conversion of kaolinite to sudoite through tosudite is considered a stepwise mineral reaction that is dominated by a DC mechanism. From a compilation of literature data, it appears that several parameters of hydrothermal and diagenetic chlorites differ, including the minimal temperature, the textural and structural characteristics and the extents of compositional fields. In hydrothermal systems, discrete chlorite occurs at a minimal temperature near 200°C, regardless of its chemical composition. In diagenetic systems, discrete chlorite occurs at minimal temperatures that vary according to its crystal chemistry (100–120°C for Mg-chlorite as opposed to 40–120°C for Fe chlorite). The strong discrepancy between the lowest temperature at which Mg- and Fe-chlorite form in buried sediments and in geothermal systems should result from drastically different heating rates, heat-flow conditions and tectonism between basins at passivemargins and geothermal systems at active margins. The morphology, structure and compositional fields of the diagenetic Fe-rich chlorite may have been inherited from those of the berthierine precursor. All of the chlorite species formed through theDC mechanism have good geothermometry potential. However, the SST mechanism in which berthierine is transformed into chlorite could have unexplored consequences regarding the use of the chemistry (including stable isotope composition) of diagenetic Fe-chlorite for reconstructing the burial history of sediments. Further investigations regarding the formationmechanisms of mixed-layerminerals are required to provide us with insight to understand the chloritization process in low-temperature geological systems.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2015

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Aagard, P. & Jahren, J.S. (1992) Diagenetic illite-chlorite assemblages in arenites. II. Thermodynamic relations. Clays and Clay Minerals, 40, 547554.Google Scholar
Aagaard, P., Jahren, J.S., Harstad, A.O., Nilsen, O. & Ramm, M. (2000) Formation of grain-coating chlorite in sandstones. Laboratory synthesized vs. natural occurrences. ClayMinerals, 35, 261269.Google Scholar
Ahn, J.H. & Peacor, D.R. (1985).Transmission electron microscopic study of diagenetic chlorite in Gulf Coast argillaceous sediments. Clays and Clay Minerals, 33, 228236.CrossRefGoogle Scholar
Alt, J.C. (1999) Very low grade hydrothermal metamorph-ism of basic igneous rocks. Pp. 169-201 in: Low-Grade Metamorphism (M. Frey & D. Robinson, editors). Blackwell Science, Oxford, UK.Google Scholar
Alysheva, E.I., Rusinova, O.V. & Chekvaidze, V.B. (1977) Sudoite from polymetal deposit of Rudnyy. Academy of Sciences, USSR, Doklady Earth Science Section, 236, 167169.Google Scholar
Anceau, A. (1992) Sudoite in some Visean (Lower Carboniferous) K-bentonites from Belgium. Clay Minerals, 27, 283292.CrossRefGoogle Scholar
Árkai, P. (1991) Chlorite crystallinity: an empirical approach and correlation with illite crystallinity, coal rank and mineral facies as exemplified by Palaeozoic and Mesozoic rocks of northeast Hungary. Journal of Metamorphic Geology, 9, 723734.Google Scholar
Badaut, N., Besson, G., Decarreau, A. & Rautureau, M. (1985) Occurrence of a ferrous, trioctahedral smectite in recent sediments of Atlantis I. Deep, Red Sea. Clay Minerals, 20, 389404.Google Scholar
Bailey, S.W. (1980) Structures of layer silicates. Pp. 1-123 in: Crystal Structures of Clay Minerals and their X-ray Identification (G.W. Brindley & G. Brown, editors). Monograph 5, Mineralogical Society, London.Google Scholar
Bailey S.W. (1982) Nomenclature for regular intersratifi-cations. American Mineralogist, 67, 394398.Google Scholar
Bailey, S.W. (1988a) Chlorites: Structures and crystal chemistry. Pp. 347-403 in: Hydrous Phyllosilicates (Exclusive of Micas) (S.W. Bailey, editor). Reviews in Mineralogy, 19, Mineralogical Society of America, Washington DC.Google Scholar
Bailey S.W. (1988b) Odinite, a new dioctahedral-trioctahedral Fe3+ rich clay mineral. Clay Minerals, 23, 237247.Google Scholar
Banfield, J.F. & Bailey, S.W. (1996) Formation of regularly interstratified serpentine-chlorite minerals by tetrahe-dral inversion in long-period serpentine polytypes. American Mineralogist, 81, 79—91.Google Scholar
Banfield, I., Bailey, S.W. & Barker, W.W. (1994) Polysomatism, polytypism, defect microstructures, and reaction mechanisms in regularly and randomly interstratified serpentine and chlorite. Contributions to Mineralogy and Petrology, 117, 137150.CrossRefGoogle Scholar
Baronnet, A. (1982) Ostwald ripening in solution. The case of calcite and mica. Estudios Geologicos, 38, 185198.Google Scholar
Baronnet, A. (1992) Polytypism and stacking disorder. Pp. 232—288 in: Mineral Reactions at the Atomic Scale: Transmission Electron Microscopy (P. Buseck, editor). Reviews in Mineralogy, 27, Mineralogical Society of America, Washington DC.Google Scholar
Barrenechea, J.F., Rodas, M., Frey, M., Alonso-Azcárate, J. & Mas, J.R. (2000) Chlorite, corrensite, and chlorite-mica in Late Jurassic fluvio-lacustrine sediments of the Cameros basin of Northeastern Spain. Clays and Clay Minerals, 48, 256265.Google Scholar
Bartier, D., Ledesert, B., Clauer, N., Meunier, A., Liewig, N., Morvan, G. & Addad, A. (2008) Hydrothermal alteration of the Soultz-sous-Forets granite (hot fractured rock geothermal exchanger) into a tosudite and illite assemblage. European Journal of Mineralogy, 20, 131142.CrossRefGoogle Scholar
Beaufort, D. & Meunier, A. (1983) A petrographic study of phyllic alteration superimposed on potassic alteration: the Sibert porphyry deposit (Rhone, France). Economic Geology, 78, 15141527.Google Scholar
Beaufort, D. & Meunier, A. (1994) Saponite, corrensite and chlorite-saponite mixed-layers in the Sancerre-Couy deep drill-hole (France). Clay Minerals, 29, 47—61.Google Scholar
Beaufort, D., Westercamp, D., Legendre, O. & Meunier, A. (1990) The fossil hydrothermal system of Saint Martin (Lesser Antilles): Geology and and lateral distribution of alterations. Journal ofVolcanology and Geothermal Research, 40, 219243.Google Scholar
Beaufort, D., Patrier, P., Meunier, A. & Ottaviani, M.M. (1992) Chemical variations in assemblages including epidote and/or chlorite in the fossil hydrothermal system of Saint Martin (Lesser Antilles). Journal of Volcanology and Geothermal Research, 51, 95—114.Google Scholar
Beaufort, D., Papapanagiotou, P., Patrier, P. & Traineau, H. (1995a) Les interstratifiés I-S et C-S dans les champs géothermiques actifs: sont-ils comparables à ceux des séries diagénétiques? Bulletin Centres Recherches Exploration-Production, ELFAquitaine, 19, 267291.Google Scholar
Beaufort, D., Papapanagiotou, P., Fujimoto, K., Patrier, P. & Kasai, K. (1995b) High temperature smectites in active geothermal systems. Pp. 493—496 in: Water—Rock Interaction (Y.K. Kharaka & O.V. Chudaev, editors). Balkema, Rotterdam.Google Scholar
Beaufort, D., Baronnet, A., Lanson, B. & Meunier, A. (1997) Corrensite: A single phase or a mixed-layer phyllosilicate in the saponite-to-chlorite conversion series? A case study of Sancerre-Couy deep drill hole (France). American Mineralogist, 82, 109—124.Google Scholar
Beaufort, D., Patrier, P., Laverret, E., Bruneton, P. & Mondy, J. (2005) Clay alteration associated with Proterozoic unconformity-type uranium deposits in the East Alligator Rivers Uranium Field, Northern Territory, Australia. Economic Geology, 100, 515536.Google Scholar
Berger, G. & Velde, B. (1992) Chemical parameters controlling the propylitic and argillic alteration process. European Journal of Mineralogy, 4, 1439—1455.CrossRefGoogle Scholar
Bettison, L.A. & Schiffman, P. (1988) Compositional and structural variations of phyllosilicates from the Point Sal ophiolite, California. American Mineralogist, 73, 6276.Google Scholar
Bettison-Varga, L. & Mackinnon I.D.R. (1997) The role of randomly mixed-layered chlorite/smectite in the transformation of smectite to chlorite. Clays and Clay Minerals, 45, 506516.Google Scholar
Bettison-Varga, L., Mackinnon, I.D.R. & Schiffman, P. (1991) Integrated TEM, XRD and electron microprobe investigation of mixed-layer chlorite-smectite from the Point Sal ophiolite, California. Journal of Metamorphic Geology, 9, 697710.CrossRefGoogle Scholar
Bevins, R.E., Robinson, D. & Rowbotham, G. (1991) Compositional variations in mafic phy llo silicates from regional low-grade metabasites and application to the chlorite geothermometer. Journal of Metamorphic Geology, 9, 711721.Google Scholar
Bhattacharyya D.P. (1983) Origin of berthierine in ironstones. Clays and Clay Minerals, 31, 173182.Google Scholar
Biernacka, J. (2014) Pore lining sudoite in Rotliegend sandstones from the eastern part of the southern Permian Basin. Clay Minerals, 49, 635—655.Google Scholar
Billault V (2002) Texture, structure et propriétés cristal-lochimiques des chlorites ferreuses dans les réservoirs gréseux. Thesis, University of Poitiers, France 193 pp.Google Scholar
Billault, V., Beaufort, D., Patrier, P. & Petit, S. (2002) Crystal chemistry of Fe-sudoites from uranium deposits in the Athabasca basin (Saskatchewan, Canada). Clays and Clay Minerals, 50, 7081.Google Scholar
Billault, V., Beaufort, D., Baronnet, A. & Lacharpagne, J.C. (2003) A nanopetrographic and textural study of grain-coating chlorites in sandstone reservoirs. Clay Minerals, 38, 315328.Google Scholar
Billon, S. (2014) Minéraux argileux dans le gisement d'Imouraren (Bassin de Tim Mersoï, Niger): implica¬tions sur la genese du gisement et sur Voptimisation des procédés de traitement. Thesis, University of Poitiers, France 340 pp.Google Scholar
Bourdelle, F., Parra, T., Chopin, C. & Beyssac, O. (2013) A new chlorite geothermometer for diagenetic to low-grade metamorphic conditions. Contributions to Mineralogy and Petrology, 165, 723—735.Google Scholar
Brigatti M.F & Poppi, L. (1984) Crystal chemistry of corrensite: a review. Clays and Clay Minerals, 32, 391399.Google Scholar
Buatier, M.D., Fruhgreen, G.L. & Karpoff, A.M. (1995) Mechanisms of Mg-phyllosilicate formation in a hydrothermal system at a sedimented ridge (Middle Valley, Juan de Fuca). Contributions to Mineralogy and Petrology, 122, 134151.Google Scholar
Cathelineau, M. & Nieva, D. (1985) A chlorite solid-solution geothermometer the Los Azufres (Mexico) geothermal system. Contributions to Mineralogy and Petrology, 91, 235244.Google Scholar
Chang, H.K., Mackenzie, F.T. & Schoonmaker, J. (1986) Comparisons between the diagenesis of dioctahedral and trioctahedral smectite, Brazilian offshore basins. Clays and Clay Minerals, 34, 407423.Google Scholar
Creach, M., Meunier, A. & Beaufort, D. (1986) Tosudite crystallization in the kaolinized granitic cupola of Montebras, Creuse, France. Clay Minerals, 21, 225230.Google Scholar
Curtis, C.D., Hughes, C.R., Whiteman, J.A. & Whittle, C.K. (1985) Compositional variation within some sedimentary chlorites and some comments on their origin. Mineralogical Magazine, 49, 375386.Google Scholar
Dalla Torre, M., Livi, K.J.T. & Frey, M. (1996) Chlorite textures and compositions from high-pressure/low-temperature metashales and metagreywackes, Franciscan Complex Diablo Range, California, USA. European Journal of Mineralogy, 8, 825—846.Google Scholar
Daniels, E.J. & Altaner, S.P. (1990) Clay mineral authigenesis in coal and shale from the Anthracite region, Pennsylvania. American Mineralogist, 75, 825839.Google Scholar
De Caritat, P., Hutcheon, I. & Walshe, J.L. (1993) Chlorite geothermometry: a review. Clays and Clay Minerals, 41, 219239.CrossRefGoogle Scholar
Dowey, P., Hodgson, D.M. & Worden, R.H. (2012) Pre-requisites, processes, and prediction of chlorite grain coatings in petroleum reservoirs: A review of subsurface examples. Marine and Petroleum Geology, 32, 6375.Google Scholar
Drits, V.A. & Lazarenko, E.K. (1967) Structural-mineral-ogical characteristics of donbassites. Mineralog. Sbornik. L'vovsk Geol Obshchestvo, 21, 40-48 (in Russian).Google Scholar
Drits, V.A., Ivanovskaya, T.A., Sakharov, B.A., Zviagyna, B. B., Gor'kova, N.V., Pokrovskaya, E.V. & Savichev, A.T. (2011) Mixed-layers corrensite-chlorites and their formation mechanisms in the glauconitic sandstones-clayed rocks (Riphean, Anabar uplift). Lithology and Mineral Resources, 46, 566—593.Google Scholar
Ehrenberg, S.N. (1990) Relationship between diagenesis and reservoir quality in sandstones of the Garn Formation, Haltenbanken, Mid-Norwegian Continental Shelf. American Association of Petroleum Geologists Bulletin, 75, 15791592.Google Scholar
Ehrenberg, S.N. (1993) Preservation of anomalously high porosity in deeply buried sandstones by grain-coating chlorite: examples from the Norwegian continental shelf. American Association of Petroleum Geologists Bulletin, 77, 12601286.Google Scholar
Essene, E.J. & Peacor, D.R. (1995) Clay mineral thermometry - a critical perspective. Clays and Clay Minerals, 43, 540553.Google Scholar
Franceschelli, M., Mellini, M., Memmi, I. & Ricci, C.A. (1989) Sudoite, a rock-forming mineral in Verrucano of the northern Apennines (Italy) and the sudoite-chloritoid-pyrophyllite assemblage in prograde metamorphism. Contributions to Mineralogy and Petrology, 101, 274279.Google Scholar
Fransolet A.-M. & Bourguignon, P. (1978) Di/trioctahe-dral chlorite in quartz veins from the Ardenne, Belgium. The Canadian Mineralogist, 16, 365—373.Google Scholar
Fransolet, A.M. & Schreyer, W. (1984) Sudoite, di/ trioctahedral chlorite — a stable low-temperature phase in the system MgO-Al2O3-SiO2-H2O. Contributions to Mineralogy and Petrology, 86, 409417.Google Scholar
French B.M. (1973) Mineral assemblages in diagenetic and low-grade metamorphic iron-formation. Economic Geology, 68, 10631074.Google Scholar
Garvie L.A.J. (1992) Diagenetic tosudite from the lowermost St. Maughan's Group, Lydney Harbour, Forest of Dean. Clay Minerals, 27, 507513.Google Scholar
Gianelli, G., Mekuria, N., Battaglia, S., Chersicla, A., Garofalo, P., Ruggieri, G., Manganelli, M. & Gebregziabher, Z. (1998) Water-rock interaction and hydrothermal mineral equilibria in the Tendaho geothermal system. Journal of Volcanology and Geothermal Research, 86, 253—276.Google Scholar
Grigsby J.D. (2001) Origin and growth mechanism of authigenic chlorite in sandstones of the lower Vicksburg Formation, South Texas. Journal of Sedimentary Research, 71, 2736.Google Scholar
Hall, S.H. & Bailey, S.W. (1976) Berthierine from Antartica. American Mineralogist, 61, 497—499.Google Scholar
Hayashi, H. & Oinuma, K. (1964) Aluminian chlorite from Kamikita mine, Japan. Clay Science, 2, 22—30.Google Scholar
Hayes J.B. (1970) Polytypism of chlorite in sedimentary rocks. Clays and Clay Minerals, 18, 285306.CrossRefGoogle Scholar
Hemley, I., & Jones, W.R. (1964). Chemical aspects of hydrothermal alteration with emphasis on hydrogen metasomatism. Economic Geology, 59, 538569.Google Scholar
Henley, R.W. & Ellis, A.J. (1983) Geothermal systems ancient and modern, a geochemical review. Earth Sciences Review, 19, 150.CrossRefGoogle Scholar
Hezarkhani, A. (2006) Mineralogy and fluid inclusion investigations in the Reagan Porphyry System, Iran, the path to an uneconomic porphyry copper deposit. Journal of Asian Earth Sciences, 27, 598—612.Google Scholar
Hillier, S. (1993) Origin, diagenesis, and mineralogy of chlorite minerals in Devonian lacustrine mudrocks, Orcadian Basin, Scotland. Clays and Clay Minerals, 41, 240259.Google Scholar
Hillier, S. (1994) Pore-lining chlorites in siliciclastic reservoir sandstones: electron microprobe, SEM and XRD data, and implications for their origin. Clay Minerals, 29, 665679.Google Scholar
Hillier, S. & Velde, B. (1991) Octahedral occupancy and the chemical composition of diagenetic (low-tempera¬ture) chlorites. Clay Minerals, 26, 149168.Google Scholar
Hillier, S., Wilson, M.J. & Merriman, R.J. (2006) Clay mineralogy of the Old Red Sandstone and Devonian sedimentary rocks of Wales, Scotland and England. Clay Minerals, 41, 433-471.Google Scholar
Hornibrook E.R.C.& Longstaffe F.J. (1996) Berthierine from the lower Cretaceous Clearwater Formation, Alberta, Canada. Clays and Clay Minerals, 44, 121.Google Scholar
Humphreys, B., Smith, S.A. & Strong, G.E. (1989) Authigenic chlorite in late Triassic sandstones from the Central Graben, North Sea. Clay Minerals, 24, 427444.Google Scholar
Humphreys, B., Kemp, S.J., Lott, G.K., Bermanto, Dharmayanti, D.A. & Samsori, I. (1994) Origin of grain-coating chlorite by smectite transformation: an example from Miocene sandstones, North Sumatra back-arc basin, Indonesia. Clay Minerals, 29, 681692.Google Scholar
Inoue, A. (1995) Formation of clay minerals in hydrother¬mal environments. Pp. 268-330 in: Origin and Mineralogy of Clays (B. Velde, editor) Springer-Verlag, Berlin, Heidelberg.Google Scholar
Inoue, A. & Utada, M. (1989) Mineralogy and genesis of hydrothermal aluminous clays containing sudoite, tosudite, and rectorite in a drillhole near the Kamikita kuroko ore deposit, northern Honshu, Japan. Clay Science, 7, 193217.Google Scholar
Inoue, A., Utada, M., Nagata, H. & Watanabe, T. (1984) Conversion of trioctahedral smectite to interstratified chlorite/smectite in Pliocene acidic pyroclastic sedi¬ments of the Ohyu district, Akita Prefecture, Japan. Clay Science, 6, 103116.Google Scholar
Inoue, A., Meunier, A., Patrier-MasP.,RigaultC., Beaufort, D. & Vieillard, P. (2009) Application of chemical geothermometry to low-temperature trioctahedral chlorites. Clays and Clay Minerals, 57, 371382.Google Scholar
Inoue, A., Kurokawa, K & Hatta, T. (2010) Application of chlorite geothermometry to hydrothermal alteration in Toyoha Geothermal System, southwestern Hokkaido, Japan. Resource Geology, 60, 5270.Google Scholar
Jahren J.S. (1991). Evidence of Ostwald Ripening-related recrystallisation of diagenetic chlorites from reservoir rocks, offshore Norway. Clay Minerals, 26, 169178.Google Scholar
Jiang, W.T., Peacor, D.R. & Buseck, P.R. (1994) Chlorite geothermometry: contamination and apparent octahe¬dral vacancies. Clays and Clay Minerals, 42, 593605.Google Scholar
Jowett E.C. (1991) Fitting iron and magnesium into the hydrothermal chlorite geothermometer: GAC/MAC/ SEG. Joint Annual Meeting (Toronto, May 27-29, 1991), Program with Abstracts, 16, A62.Google Scholar
Keith, T.E.C. & Bargar, K.E. (1988) Petrology and hydrothermal mineralogy of U. Geological Survey Newberry 2 drill core from Newberry Caldera, Oregon. Journal of Geophysical Research, 93, 1017410190.Google Scholar
Kimbara, K. & Nagata, H. (1974) Clay minerals in the core samples of the mineralized zone of Niida, southern part of Odate Akita Prefecture, Japan. Japanese Association of Mineralogists, Petrologists and Economic Geologists Journal, 69, 239—254.Google Scholar
Kisch, H.J. (1983) Mineralogy and petrology of burial diagenesis (burial metamorphism) and incipient metamorphism in clastic rocks. Pp. 289—493 in: Diagenesis in Sediments and Sedimentary Rocks, 2 (G. Larsen& G.V. Chilingar, editors). Elsevier, New York.Google Scholar
Kister, P., Vieillard, P., Cuney, M., Quirt, D. & Laverret, E. (2005) Thermodynamic constraints on the mineral-ogical and fluid composition in a Proterozoic clastic sedimentary basin: the Athabasca Basin (Saskatchewan, Canada). European Journal of Mineralogy, 17, 325342.Google Scholar
Kogure, T., Drits, V.A. & Inoue, S. (2013) Structure of mixed-layers corrensite-chlorite revealed by high resolution transmission elctron microscopy (HRTEM). American Mineralogist, 98, 12531260.Google Scholar
Kohyama, N., Shimoda, S. & Sudo, T. (1973) Iron-rich saponite (ferrous and ferric forms). Clays and Clay Minerals, 21, 229237.Google Scholar
Kramm, U. (1980) Sudoite in low-grade manganese rich-assemblages. Neues Jahrbuch fur Mineralogie Abhandlungen, 138, 113.Google Scholar
Kranidiotis, P. & MacLean, W.H. (1987) Systematics of chlorite alteration at the Phelps Dodge massive sulfide deposit, Matagami, Quebec. Economic Geology, 82, 18981911.Google Scholar
Kristmannsdottir, H. (1978) Alteration of basaltic rocks by hydrothermal activity at 100-300°C. Pp. 359-367 in: Proceedings of the International Clay Conference, Oxford, 1978 (M.M. Mortland and V.C. Farmer, editors). Elsevier, Amsterdam.Google Scholar
Lanari, P., Wagner, T. & Vidal, O. (2014) A thermodynamic model for di-trioctahedral chlorite from experimental and natural data in the system MgO-FeO-Al2O3-SiO2-H2O: applications to P-T sections and geothermome-try. Contributions to Mineralogy and Petrology, 167:968.Google Scholar
Lanson, B., Sakharov, B.A., Claret, F. & Drits, V.A. (2009) Diagenetic smectite-to-illite transition in clay-rich sediments: A reappraisal of X-ray diffraction results using the multi-specimen method. American Journal of Science, 309, 476516.Google Scholar
Lin, C.Y. & Bailey, S.W. (1985) Structural data for sudoite. Clays and Clay Minerals, 33, 410414.Google Scholar
López-Munguira, A., Nieto, F. & Morata, D. (2002) Chlorite composition and geothermometry: A comparative HRTEM/AEM-EMPA-XRD study of Cambrian basic lavas from the Ossa Morena zone, SW Spain. Clay Minerals, 37, 267281.CrossRefGoogle Scholar
Lowell, J.D. & Guilbert, J.M. (1970) Lateral and vertical alteration and mineralization zoning in porphyry ore deposits. Economic Geology, 65, 373-408.Google Scholar
Marignac, C. (1988) A case of ore deposition associated with paleogeothermal activity: The polymetallic ore veins of Aïn Barbar (NE Constantinois, Algeria). Mineralogy and Petrology, 39, 107—127.Google Scholar
Martínez-Serrano R.G. (2002) Chemical variations in hydrothermal minerals of the Los Humeros geother-mal system, Mexico. Geothermics, 31, 579—612.Google Scholar
Mas, A., Guisseau, D., Patrier Mas, P., Beaufort, D., Genter, A., Sanjuan, B. & Girard, J.P. (2006) Clay minerals related to the hydrothermal activity of the Bouillante geothermal field (Guadeloupe). Journal ofVolcanology and Geothermal Research, 158, 380400.Google Scholar
Maynard J.B. (1986) Geochemistry of oolitic iron ores, an electron microprobe study. Economic Geology, 81, 14731483.Google Scholar
Merceron, T., Inoue, A., Bouchet, A. & Meunier, A. (1988) Lithium-bearing donbassite and tosudite from Echassieres, Massif Central, France. Clays and Clay Minerals, 36, 3946.Google Scholar
Merriman R.J. (2005) Clay minerals and sedimentary basin history. European Journal of Mineralogy, 17, 720.CrossRefGoogle Scholar
Merriman, R.J. & Peacor, D.R. (1999) Very low-grade metapelites: mineralogy, microfabrics and measuring reaction progress. Pp. 10-60 in: Low-Grade Metamorphism (M. Frey & D. Robinson, editors). Blackwell Science, Oxford, UK.Google Scholar
Meunier, A., Inoue, A. & Beaufort, D. (1991) Chemiographic analysis of trioctahedral smectite-to-chlorite conversion series from the Ohyu Caldera, Japan. Clays and Clay Minerals, 39, 409415.Google Scholar
Milu, V., Milesi, J.P. & Leroy, J.L. (2004) Rosia Poieni copper deposit, Apuseni Mountains, Romania: Advanced argillic overprint of a porphyry system. Mineralium Deposita, 39, 173188.Google Scholar
Moore, D.M. & Reynolds, R.C. Jr. (1997) X-ray Diffraction and the Identification and Analysis of Clay Minerals, 2nd edition. Oxford University Press, New york, 378 pp.Google Scholar
Morrison, S. J. & Parry, W.T. (1986) Dioctahedral corrensite from Permian red beds, Libson Valley, Utah. Clays and Clay Minerals, 34, 613624.Google Scholar
Morse, J.W. & Casey, W.H. (1988) Ostwald processes and mineral paragenesis in sediments. American Journal of Science, 288, 537560.Google Scholar
Murakami, T., Sato, T. & Inoue, A. (1999) HRTEM evidence for the process and mechanism of saponite-to-chlorite conversion through corrensite. American Mineralogist, 84, 10801087.Google Scholar
Norman, D.K., Parry, W.T. & Bowman, J.R. (1991) Petrology and geochemistry of propylitic alteration at southwest Tintic, Utah. Economic Geology, 86,1328.Google Scholar
Nutt, C.J. (1989) Chloritization and associated alteration at the Jabiluka unconformity-type deposit, Northern Territory, Australia. The Canadian Mineralogist, 27, 4158.Google Scholar
Odin, G.S. (1988) Green marine clays; oolitic ironstone facies, verdine facies, glaucony facies and celadonite-bearing rock facies, a comparative study. Developments in Sedimentology, 45, Elsevier, Amsterdam, 445 pp.Google Scholar
Odin G.S. (1990). Clay mineral formation at the continent—ocean boundary: the verdine facies. Clay Minerals, 25, 477485.Google Scholar
Parthasarathy, G., Choudary, B.M., Sreedhar, B., Kunwar, A.C. & Srinivasan, R. (2003) Ferrous saponite from the Deccan Trap, India, and its application in adsorption and reduction of hexavalent chromium. American Mineralogist, 88, 19831988.Google Scholar
Patrier, P., Papapanagiotou, P., Beaufort, D., Traineau, H., Bril, H. & Rojas, J. (1996) Role of permeability versus temperature in the distribution of the fine (<0.2 \\m) clay fraction in the Chipilapa geothermal system (El Salvador, Central America). Journal of Volcanology and Geothermal Research, 72, 101120.Google Scholar
Patrier, P., Beaufort, D. & Bruneton, P. (2003) Dickite and 2M1 illite in deeply buried sandstones from the middle Proterozoic Kombolgie Formation (Northern Territory, Australia). Clays and Clay Minerals, 51, 102116.Google Scholar
Percival, J.B. & Kodama, H. (1989) Sudoite from Cigar Lake, Saskatchewan. The Canadian Mineralogist, 27, 633641.Google Scholar
Peyraud, J.B. & Worden, R.H. (2007) The bioclay factory: digestion as a clay-generating process. Pp. 533—536 in: Proceedings of the 12th Water-Rock Interaction conference (T.D. Bullen & X. Wang. editors). Taylor and Francis, Kunming, China.Google Scholar
Pirajno, F. (1992) Hydrothermal Mineral Deposits. Principles and Fundamental Concepts for the Exploration Geologist. Springer-Verlag, Berlin, 709 pp.Google Scholar
Porrenga D.H. (1967) Glauconite and chamosite as depth indicators in the marine environment. Marine Geology, 5, 495501.Google Scholar
Putnis, A. (1992) An Introduction to Mineral Sciences. Cambridge, Cambridge University Press, 457 pp.Google Scholar
Putnis, A. (2002) Mineral replacement reactions: From macroscopic observations to microscopic mechan-isms. Mineralogical Magazine, 66, 689708.Google Scholar
Reynolds, R.C. Jr. (1988) Mixed layer chlorite minerals. Pp. 601—630 in: Hydrous Phyllosilicates (Exclusive of Micas) (S.W. Bailey, editor). Reviews in Mineralogy, 19, Mineralogical Society of America, Washington DC.Google Scholar
Reynolds, R.C. Jr. Distefano, M.P. & Lahann R.W (1992) Randomly interstratified serpentine/chlorite: its detec¬tion and quantification by powder X-ray diffraction methods. Clays and Clay Minerals, 40, 262268.CrossRefGoogle Scholar
Reeder J.W. (1985) Formation of geothermal resources at lithospheric subduction zones. Energy Research, 9, 229239.Google Scholar
Roberson, H.E., Reynolds, R.C. & Jenkins, D.M. (1999) Hydrothermal synthesis of corrensite; a study of the transformation of saponite to corrensite. Clays and Clay Minerals, 47, 212218.Google Scholar
Rohrlich, V., Price, N.B. & Calvert, S.E. (1969) Chamosite in recent sediments of Loch Etive, Scotland. Journal of Sedimentary Petrology, 39, 624631.Google Scholar
Ruiz Cruz, M.D. & Sanz de Galdeano, C. (2005). Compositional and structural variation of sudoite from the Betic Cordillera (Spain): A TEM/AEM study. Clays and Clay Minerals, 53, 639652.Google Scholar
Ryan, P.C. & Hillier, S. (2002) Berthierine/chamosite, corrensite, and discrete chlorite from evolved verdine and evaporite-associated facies in the Jurassic Sundance Formation, Wyoming. American Mineralogist, 87, 16071615.Google Scholar
Ryan, P.C. & Reynolds, R.C. Jr. (1996) The origin and diagenesis of grain-coating serpentine-chlorite in Tuscaloosa Formation sandstone, U.S. Gulf Coast. American Mineralogist, 81, 213—225.Google Scholar
Ryan, P.C. & Reynolds, R.C. Jr. (1997) The chemical composition of serpentine/chlorite in the Tuscaloosa formation, United States Gulf coast: EDX vs. XRD determinations, implications for mineralogic reactions and the origin of anatase. Clays and Clay Minerals, 45, 339352.Google Scholar
Schiffman, P. & Fridleifsson, G.O. (1991) The smectite-chlorite transition in drill hole NJ-15, Nesjavellir geothermal field, Iceland: XRD, BSE and electron microprobe investigations. Journal of Metamorphic Geology, 9, 679696.Google Scholar
Schiffman, P. & Staudigel, H. (1995) The smectite to chlorite transition in a fossil seamount hydrothermal system: the basement complex of L. Palma, Canary Islands. Journal of Metamorphic Geology, 13, 487-498.Google Scholar
Schultz, L.G. (1963) Clay minerals in Triassic rocks of the Colorado Plateau. U.S. Geological Survey Professional Paper 1147-C, p. C1C71.Google Scholar
Shau, Y.H. & Peacor, D.R. (1992) Phyllosilicates in hydrothermally altered basalts from D.D. Hole 504B, Leg 83 — a TEM and AEM study. Contributions to Mineralogy and Petrology, 112, 119133.Google Scholar
Shau, Y.H., Peacor, D.R. & Essene, E.J. (1990) Corrensite and mixed-layer chlorite/corrensite in metabasalt from northern Taiwan: TEM/AEM, EMPA, XRD, and optical studies. Contributions to Mineralogy and Petrology, 105, 123142.Google Scholar
Shikazono, N. & Kawahata, H. (1987) Compositional differences in chlorite from hydrothermally altered rocks and hydrothermal ore deposits. The Canadian Mineralogist, 25, 465474.Google Scholar
Schmidt, D. & Livi K.J.T. (1999) HRTEM and SAED investigations of polytypism, stacking disorder, crystal growth, and vacancies in chlorite from subgreenschist facies outcrops. American Mineralogist, 84, 160170.CrossRefGoogle Scholar
Schmidt S.T & Robinson, D. (1997) Metamorphic grade and porosity/permeability controls on mafic phyllosi-licate distributions in a regional zeolite to greenschist facies transition of the North Shore Volcanic Group, Minnesota. Bulletin of the Geological Society of America, 109, 683697.Google Scholar
Shirozu, H. (1978) Chlorite minerals. Pp. 243-264 in: Clays and Clay Minerals of Japan (T Sudo & S. Shimoda, editors). Developments in Sedimentology, 26. Elsevier, Amsterdam and London.Google Scholar
Simmons, S.F. & Browne P.R.L. (2000) Hydrothermal minerals and precious metals in the Broadlands-Ohaaki geothermal system: Implications for under¬standing low-sulfidation epithermal environments. Economic Geology, 95, 971999.Google Scholar
Slack, J.F., Jiang, W.T., Peacor, D.R. & Okita, P.M. (1992) Hydrothermal and metamorphic berthierine from the Kidd Creek volcanogenic massive sulfide deposit, Timmins, Ontario. The Canadian Mineralogist, 30, 11271149.Google Scholar
Smith F.W & Hardy, R.G. (1981) Clay minerals in the veins of the North Pennine orefield, UK. Clay Minerals, 16, 309312.Google Scholar
Sudo, T. & Sato, M. (1966) Dioctahedral chlorite. Proceedings of the International. Clay Conference (L. Heller & A. Weiss, editors), 1, 3339. Jerusalem.Google Scholar
Sudo, T. & Shimoda, S. (editors) (1978) Clays and Clay Minerals of Japan. Developments in Sedimentology, 26. Elsevier, Amsterdam and London.Google Scholar
Sugimori, H., Iwatsuki, T. & Murakami, T. (2008) Chlorite and biotite weathering, Fe2+ -rich corrensite formation, and F. behavior under low PO2 conditions and their implication for Precambrian weathering. American Mineralogist, 93, 10801089.Google Scholar
Teklemariam, M., Battaglia, S., Gianelli, G. & Ruggieri, G. (1996) Hydrothermal alteration in the Aluto-Langano geothermal field, Ethiopia. Geothermics, 25, 679702.Google Scholar
Theye, T., Seidel, E. & Vidal, O. (1992) Carpholite, sudoite and chloritoid in low-grade high-pressure metapelites from Crete and the Peloponnese, Greece. European Journal of Mineralogy, 4, 487—507.Google Scholar
Tompkins R.E. (1981) Scanning electron microscopy of a regular chlorite/smectite (corrensite) from a hydrocar¬bon reservoir sandstone. Clays and Clay Minerals, 29, 233235.Google Scholar
Van Houten, F.B. & Purucker, M.E. (1984) Glauconite peloids and chamositic ooids — favorable factors, constraints and problems. Earth Science Review, 20, 211243.Google Scholar
Veblen, D.R. (1992) Electron microscopy applied to nonstoichiometry polysomatism and replacement reactions in minerals. Pp. l8l-229 in: Mineral Reactions at the Atomic Scale: Transmission Electron Microscopy (P. Buseck, editor). Reviews in Mineralogy, 27, Mineralogical Society of America, Washington, D.C. Google Scholar
Velde, B. (1985) Clay Minerals: A Physico-chemical Explanation of their Occurrence. Elsevier Amsterdam, 427 pp.Google Scholar
Velde, B. & Lanson, B. (1993) Comparison of I/S transformation and maturity of organic matter at elevated temperatures. Clays and Clay Minerals, 41, 178183.Google Scholar
Vidal, O. & Dubacq, B. (2009) Thermodynamic modelling of clay dehydration, stability and compositional evolution with temperature, pressure and H2O activity. Geochimica et Cosmochimica Acta, 73, 6544—6564.Google Scholar
Vidal, O., Goffe, B. & Theye, T. (1992) Experimental study of the stability of sudoite and magnesiocarpholite and calculation of a new petrogenetic grid for the system FeO-MgO-Al2O3-SiO2-H2O. Journal of Metamorphic Petrology, 10, 603614.Google Scholar
Vidal, O., Parra, T. & Trotet, F. (2001) A thermodynamic model for Fe-Mg aluminous chlorite using data from phase equilibrium experiments and natural pelitic assemblages in the 100°C to 600°C, 1 to 25 kb range. American Journal of Science, 301, 557—592.Google Scholar
Vidal, O., Parra, T. & Vieillard, P. (2005) Thermodynamic properties of the Tschermak solid solution in Fe-chlorite: Application to natural examples and possible role of oxidation. American Mineralogist, 90, 347358.Google Scholar
Vidal, O., Baldeyrou, A., Beaufort, D., Fritz, B., Geoffroy, N. & Lanson, B. (2012) Experimental study of the stability and phase relations of clays at high tempera¬ture in a thermal gradient. Clays and Clay Minerals, 60, 200225.Google Scholar
Walker J.R. (1993) Chlorite polytype geothermometry. Clays and Clay Minerals, 41, 260267.Google Scholar
Walker, J.R. & Thompson, G.R. (1990) Structural varia-tions in chlorite and illite in a diagenetic sequence from the Imperial Valley, California. Clays and Clay Minerals 38, 315321.Google Scholar
Walshe J.L. (1986) A six-component chlorite solid solution model and the conditions of chlorite forma¬tion in hydrothermal and geothermal systems. Economic Geology, 81, 681—703.Google Scholar
Whittle C.K. (1986) Comparisons of sedimentary chlorite compositions by X-ray diffraction and analytical TEM. Clay Minerals, 21, 937947.Google Scholar
Wiewióra, A. & Weiss, Z. (1990) Crystallochemical classifications of phyllosilicates based on the unified system of projection of chemical composition: II. The chlorite group. Clay Minerals, 25, 8392.Google Scholar
Wilson M.J. (1971) Clay mineralogy of the Old Red Sandstone (Devonian) of Scotland. Journal of Sedimentary Petrology, 41, 9951007.Google Scholar
Worden, R.H. & Morad, S. (2003) Clay minerals in sandstones: control on formation, distribution and evolution. International Association of Sedimentologists, Special Publication, 34, 341.Google Scholar
Xu, H. & Veblen, D.R. (1996) Interstratification and other reaction micro structures in the chlorite-berthierine series. Contributions to Mineralogy and Petrology, 124, 291301.Google Scholar
Yau, Y.C., Peacor, D.R., Beane, R.E., Essene, E.J. & McDowell, S.D. (1988) Microstructures, formation mechanisms, and depth zoning of phyllosilicates in geothermally altered shales, Salton Sea, California. Clays and Clay Minerals, 36, 1—10.Google Scholar