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Relation between graphitization of organic matter and clay mineralogy, Silurian black shales in Central Spain

Published online by Cambridge University Press:  05 July 2018

J. F. Barrenechea
Affiliation:
Departamento de Cristalografía y Mineralogía, Facultad de Geología, U.C.M., 28040 Madrid, Spain
M. Rodas
Affiliation:
Departamento de Cristalografía y Mineralogía, Facultad de Geología, U.C.M., 28040 Madrid, Spain
A. Arche
Affiliation:
Instituto de Geología Económica, C.S.I.C.-U.C.M., Facultad de Geología, 28040 Madrid, Spain

Abstract

A horizon containing graphite in the Early Silurian slates of the Eastern Central System, Central Spain, has been studied. The carbonaceous slates contain quartz, muscovite, graphitized organic matter, plagioclase, pyrite and apatite; and the slates above the graphite horizon contain quartz, phengite, plagioclase and chlorite. The origin of the graphite is related to a period of very slow accumulation rate, anoxic seafloors deep-water upwellings and plankton blooms. The chlorite and graphite are mutually exclusive and by' using the chlori te AlIV content and the graphite Co parameter, the conditions of metamorphism were calculated to be 300 ± 20°C and 1.5-2 kbar.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1992

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References

Albee, A. L. (1962) Am. Mineral., 50, 857–70.Google Scholar
Aparicio, A. and Galán, E. (1980) Estudios Geológicos., 36, 7584.Google Scholar
Baturin, G. N., Merkulova, K. J., Chalov, P. I. (1972) Marine Geol., 13, M37-M41.CrossRefGoogle Scholar
Bayliss, P. (1975) Can. Mineral., 13, 178–80.Google Scholar
Bellido, F., Capote, R., Casquet, C., Fuster, J. M., Navidad, M., Peinado, M., and Villaseca, C. (1981) Cuadernos de Geologia Ibárica, 7, 1552.Google Scholar
Berry, W. B. N. and Boucot, A. J. (1973) Geol. Soc. Am. Spec. Paper, 143, 83 pp.Google Scholar
Bischoff, L. (1974) NeuesJahrb. Geol. PaläontoL Abh., 147, 218–35.Google Scholar
Bonijoly, M., Oberlin, M., Oberlin, A. (1982) International Journal of Coal Geology, 1, 283312.CrossRefGoogle Scholar
Brindley, G. W., (1961) In The X-ray Identification and Crystal Structures of Clay Minerals (G. Brown, ed.) Mineral. Soc. London., 242-96.Google Scholar
Bultynck, P., Soers, E. (1971) Bull. Inst. R. Sci. Nat. Belg., 47, 121.Google Scholar
Buseck, P. R., Bo-Jun, H. (1984) Geochim. Cosmo- chim. Acta., 49, 2003–26.CrossRefGoogle Scholar
Castaño, J. R. and Sparks, D. M. (1974) Geol. Soc. America, Spec. Paper, 153, 3152.CrossRefGoogle Scholar
Cathelineau, M. (1988) Clay Minerals, 23, 471–85.CrossRefGoogle Scholar
Cathelineau, M. and Nieva, D. (1985) Contrib. Mineral. Petrol., 91, 235–44.CrossRefGoogle Scholar
Demaison, G. J. and Moore, G. T. (1980) A.A.P.G. Bull., 64, 1179–209.Google Scholar
Diessel, C. F. K. and Offler, R. (1975) Neues Jahrb. Mineral., Mh., 11-26.Google Scholar
Diessel, C. F. K. and Offler, R. Roberts, R. N., and Black, P. M. (1978) Contrib. Mineral. Petrol., 68, 6378.CrossRefGoogle Scholar
Dunoyer de Segonzac, G. (1970) Sedimentology, 15, 281346.CrossRefGoogle Scholar
Esquevin, J. (1969) Bull. Centre Rech. Pau-SNPA, 3, 147–53.Google Scholar
French, B. M. (1964) Science, 146, 917–8.CrossRefGoogle Scholar
Frey, M. (1987) In Low temperature metamorphism (M. Frey, ed.). Blackie and Sons, Glasgow, 957.Google Scholar
Fuster, J. M. Aparicio, A., Casquet, C., Garcia Cacho, L., Mora, A., and Peinado, M. (1974) Bol. GeolOgico y Minero Espafiol, 85, (5), 8388.Google Scholar
González Lodeiro, F. (1983) In Geologia de Espaha. Libro JubilarJ. M. Rios, I.G.M.E., Madrid. 408-20.Google Scholar
Griffin, G. M. (1967) J. Sediment. Petrol, 37, 1006–11.Google Scholar
Guidotti, C. V. (1984) In Micas: Reviews in Mineralogy, 13, (S. W. Bailey, ed). Mineral. Soc. America, 357-467.Google Scholar
Hallam, A. and Bradshaw, M. J. (1979) J. Geol. Soc. London, 136, 157–64.CrossRefGoogle Scholar
Heckel, P. H. (1977) A.A.P.G. Bull., 61, 1045–68.Google Scholar
Hillier, S. and Velde, B. (1991) Clay Minerals, 26, 149–68.CrossRefGoogle Scholar
Itaya, T. (1981) Lithos, 14, 215–24.CrossRefGoogle Scholar
Kepezhinskas, K. B. (1965) Dokl. Akad. Nauk SSR., 164, 126–9.Google Scholar
Kisch, H. J. (1980) J. Geol. Soc. London, 137, 271–88.CrossRefGoogle Scholar
Kubler, B. (1967) In Etages tectoniques. A la Baconniére, Neuchátel (Suisse), 105-21.Google Scholar
Landis, C. A. (1971) Contrib. Mineral. Petrol., 30, 3445.CrossRefGoogle Scholar
Legget, J. K. (1980)J. Geol. Soc. London, 137, 139–56.CrossRefGoogle Scholar
Martin, A. K. and Fleming, B. W. (1986) Can. Soc. Petroleum Geol., 2, 2744.Google Scholar
Maxwell, D. T. and Hower, J. (1967) Am. Mineral., 52, 843–57.Google Scholar
McKerrow, W. S. (1979) J. Geol. Soc. London, 136, 137–45.CrossRefGoogle Scholar
Moore, D. M. and Reynolds, R. C. Jr. (1989) X-ray diffraction: identification and analysis of clay minerals. Oxford University Press. 224-25.Google Scholar
Muchez, P., Boven, J., Bouckaert, J., Leplat, P., Viaene, W., and Wolf, M. (1991) Neues Jarhb. Geol. Paliiont. Abh., 182, 117–31.CrossRefGoogle Scholar
Nieto Garcia, F. and Rodriguez Gallego, M. (1982) Rend. Soc. ltal. Miner. Petrol., 38, 1429–36.Google Scholar
Paris, F. and Robardet, M. (1990) Tectonophys., 177, 193213.CrossRefGoogle Scholar
Pesquera, A. and Velasco, F. (1988) Mineral. Mag., 52, 615-55.CrossRefGoogle Scholar
Schiller, G. (1969) MUnster Forsch. GeoL Paliiobt., 10, 1207.Google Scholar
Shengelia, D. M., Akhvledianni, R. A., and Ketskhoveli, D. N. (1979) Dokl. Akad. Nauk SSSR, 235, 140-79.Google Scholar
Soers, E. (1972) Studia Geologica IV, 7-94.Google Scholar
Stride, A. H. (1982) Offshore tidal sands. Chapman and Hall, New York, 222 pp.CrossRefGoogle Scholar
Tagiri, M. (1981) J. Japan Assoc. Min. Petr. Econ. Geol., 76, 345–52.CrossRefGoogle Scholar
Teichmüller, M. (1987) In Low temperature metamorphbm (M. Frey, ed.). Blackie and Sons. Glasgow, 114-61.Google Scholar
Veeh, H. H., Burnett, W. C. (1973) Science, 181, 844–5.CrossRefGoogle Scholar
Velde, B. (1965) Am. Mineral., 50, 436–49.Google Scholar
Velde, B. (1967) Contrib. Mineral. Petrol., 14, 250–8.CrossRefGoogle Scholar