Abstract
Muscovite-kaolinite intergrowths found in Albian sandstones of the Basque Cantabrian basin (northern Spain) were studied by optical, scanning and electron microscopy and electron microprobe analysis. Kaolinitization begins at grain edges, forming the characteristic fanned-out textures, and propagates toward the interior along the cleavages of muscovite. Kaolinite and muscovite occur as thick packets, being free of interlayering. Phase boundaries between both minerals show bidimensional crystallographic continuity, and no intermediate phases have been identified. The data obtained suggest that muscovite only supplied a template suitable for the epitactic crystallization of kaolinite, while Al was available in sufficient amounts due to the dissolution of detrital K-feldspar. Very small packets of magnetite or maghemite showing a coherent orientation with the kaolinite crystals have been recognized, and could be responsible for the small Fe contents usually detected in electron microprobe analyses of kaolinite.
Textural relationships between authigenic kaolinite and deformation microstructures in the intergrowths, combined with previous information about burial conditions, show that alteration proceeded during a late stage of the diagenetic history, related to the uplift of the studied materials as a result of the Alpine orogeny.
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References
Bailey, S.W. (1980) Structures of layer silicates. Pp. 1–124 in: Crystal Structures of Clay Minerals and their X-ray Identification (G.W. Brindley and G. Brown, editors). Monograph, 5. Mineralogical Society, London.
Banfield, J.F. and Eggleton, R.A. (1990) Analytical transmission electron microscope studies of plagioclase, muscovite and K-feldspar weathering. Clays and Clay Minerals, 38, 77–89.
Bass, J.D. (1995) Elasticity of minerals, glasses and melts. Pp. 45–63 in: Mineral Physics and Crystallography: A Handbook of Physical Constants (T.J. Ahrens, editor). American Geophysical Union Reference Shelf, 2.
Bjørlykke, K. (1998) Clay mineral diagenesis in sedimentary basins—a key to the prediction of rock properties. Example from the North Sea Basin. Clay Minerals, 33, 15–34.
Bjørlykke, K., Malm, O. and Elverhoin, A. (1979) Diagenesis in Mesozoic sandstones from Spitsbergen and the North Sea—a comparison. Geologische Rundschau, 68, 1151–1171.
Buseck, P.R. (1992) Principles of transmission electron microscopy. Pp. 1–36 in: Minerals and Reactions at the Atomic Sscale: Transmission Electron Microscopy (P.R. Buseck, editor). Reviews in Mineralogy, 27. Mineralogical Society of America, Washington, D.C.
Buseck, P.R., Cowley, J.M. and Eyring, L. (1988) High-Resolution Transmission Electron Microscopy and Associated Techniques. Oxford University Press, New York, pp. 1–128.
Champness, P.E., Cliff, G. and Lorimer, G.W. (1981) Quantitative analytical electron microscopy. Bulletin of Mineralogy, 104, 236–240.
Cliff, G. and Lorimer, G.W. (1975) The quantitative analysis of thin specimens. Journal of Microscopy, 103, 203–207.
Craw, D., Coombs, D.S. and Kawachi, Y. (1982) Inter-layered biotite-kaolin and other altered biotites, and their relevance to the biotite isograd in eastern Otago, New Zealand. Mineralogical Magazine, 45, 79–85.
Crowley, S.F. (1991) Diagenetic modification of detrital muscovite: an example from the Great Limestone Cyclotherm (Carboniferous) of Co. Durham, UK. Clay Minerals, 26, 91–103.
Jeong, G.Y. (1998) Vermicular kaolinite epitactic on primary phyllosilicates in the weathering profiles of anorthosite. Clays and Clay Minerals, 46, 509–520.
Jiang, W. and Peacor, D.R. (1991) Transmission electron microscopic study of the kaolinitization of muscovite. Clays and Clay Minerals, 39, 1–13.
Jiang, W., Peacor, D.R. and Essene, E. (1994) Clay minerals in the McAdams sandstone, California: implications for substitution of H3O+ and H2O and metastability of illite. Clays and Clay Minerals, 42, 35–45.
Kübler, B. (1984) Les indicateurs des transformations physiques et chimiques dans la diagenèse, temperature et calorimetric. Pp. 489–596 in: Themométrie et Barometrie Géologiques (M. Lagache, editor). Societé Française de Mineralogie et Cristallographie, Paris.
Lockner, D.A. (1995) Rock failure. Pp. 127–147 in: Rock Physics and Phase Relations: A Handbook of Physical Constants (T.J. Ahrens, editor). American Geophysical Union Reference Shelf, 3.
Ma, C. and Eggleton, R.A. (1999) Surface layer types of kaolinite: a high-resolution transmission electron microscope study. Clays and Clay Minerals, 47, 181–191.
Mares, V.M. and Kronenberg, A.K. (1993) Experimental deformation in muscovite. Journal of Structural Geology, 15, 1061–1075.
Marfil, R. and Gomez Gras, D. (1992) Procedencia y modelo diagenético de las areniscas de la facies Utrillas en la Cordillera Ibérica (Umbral de Ateca) y la Meseta norcastellana. Revista de la Sociedad Geológica de España, 5 (3–4), 101–115.
Passchier, C.W. and Trouw, R.A.J. (1996) Microtectonics. Springer, Berlin, 289 pp.
Rat, P. (1988) The Basque-Cantabrian basin between the Iberian and European plates: some facts but many problems. Revista de la Sociedad Geológica España, 1, 327–348.
Robertson, I.D.M. and Eggleton, R.A. (1991) Weathering of granitic muscovite to kaolinite and halloysite and of plagioclase-derived kaolinite to halloysite. Clays and Clay Minerals, 39, 113–126.
Sangüesa, F.J. and Arostegui, J. (2000) Modelo subsidente y térmico. Naturaleza, origen y distributión de los yacimientos de ambar de Peñacerrada (Álava-Spain). Museo de Ciencias Naturales de Álava, Spain, 22 pp.
Singh, B. and Gilkes, R.J. (1991) Weathering of a chromian muscovite to kaolinite. Clays and Clay Minerals, 39, 571–579.
Zuluaga, M.C., Irabien, M.J., Sangüesa, F.J., Aranburu, A., Agirrezabala, L.M. and Arostegui, J. (1998) Clay mineralogy of Albian sediments in a type section (San Felices) from the southern border of the Basque-Cantabrian basin (northern Spain). Proceedings 2nd Mediterranean Clay Meeting, Aveiro, Portugal, pp. 102–107.
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Arostegui, J., Irabien, M.J., Nieto, F. et al. Microtextures and the origin of muscovite-kaolinite intergrowths in sandstones of the utrillas formation, Basque Cantabrian basin, Spain. Clays Clay Miner. 49, 529–539 (2001). https://doi.org/10.1346/CCMN.2001.0490605
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DOI: https://doi.org/10.1346/CCMN.2001.0490605