Articles
Characterization and significance of allophane and halloysite in Paja Formation rocks (lower cretaceous). West border of Eastern Cordillera, Colombia
Published 2004-12-02
Keywords
- Allophane,
- Halloysite,
- Albitites,
- Paja Formation,
- Emeralds
How to Cite
Mantilla, F., García, R., & Uribe, P. (2004). Characterization and significance of allophane and halloysite in Paja Formation rocks (lower cretaceous). West border of Eastern Cordillera, Colombia. Boletín De Geología, 26(43), 11–22. Retrieved from https://revistas.uis.edu.co/index.php/revistaboletindegeologia/article/view/914
Abstract
The presence of allophane and halloysite as fillings material of cavities and fissures, in sectors where the organic mudstone (occasionally calcareous) of the Paja Formation present local enrichments of albite of hydrothermal genesis, are interpreted as their supergenic alteration products. Due to the fact that the neoformed albites are generated during the same hydrothermal processes that tend to be associated with the formation of emeralds in Colombia, we propose to consider these supergenic alteration products as macroscopic criterion in exploration of this type of deposits in the context of the Cordillera Oriental.
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References
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Campos N., Rosser, B. P. (2003). Major and traceelements of Black Shales from the lower CretaceousPaja Foramtion, Eastern Cordillera Santander):Implications for provenance and tectonic setting.Memorias IX Congreso Colombiano de Geología, pp.56-57
Cheilletz, A., Féraud, G., Giuliani, G., Rodroguez, C. T.(1994). Time-Pressure and Temperature Constraintson the Formation of Colombian Emeralds: An 40Ar/39Ar Laser microprobe and Fluid Inclusion Study.Economic Geology. Vol. 89, pp. 361-380
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Ossaka, J. (1960). On the hydro-alumina silicateminerals from Mt. Asama. Adv. Clay Sci. 2, pp. 339-349
Pérez del Villar, M.; Moro, M. C., Címbranos, M. L.(1992). Allophane in weathered zones of barite oredeposits (Vide de Alba and San Blas, Zamora, Spain):Mineralogy and Genesis). Clay Minerals, 27, pp. 309-323
Snetsinger, K. G. (1967). High-alumina allophone aswathering product of plagioclase. The AmericanMineralogist, Vol. 52, pp. 254-262.Wada, K. (1977). Allophane and imogolite. In: Mineralsin Soil Environments. Pp. 603-638. (J. B. Dixon y S.B. Weed, editors). Soil Science Society of America,Madison, Wisconsin
Campos N., Rosser, B. P. (2003). Major and traceelements of Black Shales from the lower CretaceousPaja Foramtion, Eastern Cordillera Santander):Implications for provenance and tectonic setting.Memorias IX Congreso Colombiano de Geología, pp.56-57
Cheilletz, A., Féraud, G., Giuliani, G., Rodroguez, C. T.(1994). Time-Pressure and Temperature Constraintson the Formation of Colombian Emeralds: An 40Ar/39Ar Laser microprobe and Fluid Inclusion Study.Economic Geology. Vol. 89, pp. 361-380
FAO (1990). FAO-UNESCO soil map of the World.Revised Legend. Soil Bulletin 60. FAO, Rome
Fields, M., Claridge, G. G. C. (1975). Allophane. In:Soil Components. 2. Inorganic Components (J. E.Gieseking, editor). Springer-Verlag, New York, pp. 351-394
Gómez, P. J. A. (1977). Fotogeología de la zonaBarbosa – Landazuri. Boletín de Geología, UIS, Vol2, No. 25, pp. 99–106
Graeme (1981). Mineral. Record 12, pp. 259-319.Henmi, T. (1979). The ocurrente of allophane in astream-deposit from Ehime prefecture, Japan. ClayMinerals, Vol. 14, pp. 333-338
Hughes, J. C. (1980). Cristallinity of caolin mineralsand their weathering sequence in some soils fromNigeria, Brazil and Colombia. Geoderma, 24, pp. 317-325
Lowe, D. J. (1986). Controls on the rates of Weatheringand clay mineral genesis in airfall tephras: A reviewand New Zealand Case study. In: Rates of chemicalweathering of rocks and minerals (S. M. Coleman andD. P. Dethier, editors). Academic Press, New York,pp. 265-330
Mantilla Figueroa, L. C., Cruz G. L. E.; Colegial G. J.D. (2003). Introducción a la geología del sector Vélez-Bolívar-Guavatá (Dpto. de Santander, Colombia) y suimportancia para la exploración de depósitoshidrotermales. Boletín de Geología, UIS, Vol. 25, No.40, pp. 39-57
Mantilla Figueroa, L. C.; Nolasco García, T. (2003).Significado de la foliación tectónica en rocas delcretácico inferior al sur de la provincia de Vélez (Dpto.de Santander, Colombia). Memorias del IX CongresoColombiano de Geología. Medellín Julio de 2003, pp.76-77
Melgarejo, J-C. (1997). Atlas de asociaciones mineralesen lámina delgada. Edicions Universitat de Barcelona.1076 p
Moro, M. C.; Címbranos, M. L.; Fernández, A. (2000).Allophane-like materials in the weathered zones ofSilurian phosphate-rich veins from Santa Creu d’Olorda(Barcelona, Spain). Clay minerals, 35, pp. 411-421
Murray, H. H. (1991). En Bailey (ed): Hydrousphyllosilicates . MSA Rev. Mineral. 19, pp. 67-89
Newman, A. C. D. and Brown, G. (1987). Thechemical constitution of clays. In: Chemistry of claysand clay minerals (A. C. D. Newman, editot).Mineralogical Society, London, pp. 1-128
Ossaka, J. (1960). On the hydro-alumina silicateminerals from Mt. Asama. Adv. Clay Sci. 2, pp. 339-349
Pérez del Villar, M.; Moro, M. C., Címbranos, M. L.(1992). Allophane in weathered zones of barite oredeposits (Vide de Alba and San Blas, Zamora, Spain):Mineralogy and Genesis). Clay Minerals, 27, pp. 309-323
Snetsinger, K. G. (1967). High-alumina allophone aswathering product of plagioclase. The AmericanMineralogist, Vol. 52, pp. 254-262.Wada, K. (1977). Allophane and imogolite. In: Mineralsin Soil Environments. Pp. 603-638. (J. B. Dixon y S.B. Weed, editors). Soil Science Society of America,Madison, Wisconsin