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Geochemistry and EPR of cassiterites from the Iberian Hercynian Massif

Published online by Cambridge University Press:  05 July 2018

A. Murciego ,
A. Garcla Sanchez ,
Y. Dusausoy ,
J. M. Martin Pozas  and
R. Ruck
A. Murciego
Affiliation:
Area de Cristalografía y Mineralogía, Universidad de Extremadura, Badajoz, Spain
A. Garcla Sanchez
Affiliation:
IRNA-CSIC, Aptdo. 257, Salamanca, Spain
Y. Dusausoy
Affiliation:
Laboratoire de Mineralogie et Cristallographie, Université de Nancy I, Vandoeuvre-lès-Nancy, France
J. M. Martin Pozas
Affiliation:
Departamento de Geología, Universidad de Salamanca, Spain
R. Ruck
Affiliation:
CREGU, B.P. 23, 54501, Vandoeuvre-lès-Nancy, France
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Abstract

This paper is based on microprobe analysis (Ta, Nb, Fe, Mn, Ti, W, Sn) and Fe3+ EPR spectra of cassiterite samples from 14 tin deposits from the Iberian Hercynian Massif. The interpretation of microprobe data, atomic ratios (Fe+Mn)/(Nb+Ta), and Fe3+ EPR spectra reveal that the coupled substitution: 3Sn4+ = (Fe,Mn)2+ + 2(Nb,Ta)5+ is dominant in cassiterites from pegmatites, and high-temperature quartz veins and in the dark zones of cassiterites.

The mechanisms:

2Sn4+ = Fe3+ + (Nb,Ta)5+ and

Sn4+ + O2− = Fe3+ + OH−

are dominant in those from medium-low temperature quartz veins and in the light zones of cassiterites.

Keywords

cassiteritetrace elementsFe3+ EPR spectracoupled substitutions
Type
Mineralogy
Information
Mineralogical Magazine , Volume 61 , Issue 406 , June 1997 , pp. 357 - 365
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1997

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References

Bahezre, C., Capitant, M. and Duong, P.K. (1961) Analyse ponctuetle d'une cassitérite zonée. Bull. Soc. Fr. Minér. Cristallogr., 84, 321-2.Google Scholar
Brèhat, F., Wyncke, B., Léonard, J.M. and Dusausoy, Y. (1990) Infrared reflectivity of single crystal cassiterite. Phys. Chem. Minerals, 17, 191–6.CrossRefGoogle Scholar
Calas, G. and Cottrant, J.F. (1982) Cristallochimie du fer dans les cassitérites bretonnes. Bull. Minéral. 105, 598-605.CrossRefGoogle Scholar
Carvalho, D. (1977) Lineament patterns and hypogene mineralization in Portugal. Estudos Notas e Trab. do S.F.M. (Portugal), XXIII, 91–106.Google Scholar
Clark, A.M., Fejer, E.E., Donaldson, J.D. and Silver, J. (1976) The 119 Sn Mössbauer spectra, cell dimensions and minor element contents of some cassiterite. Mineral. Mag. 40, 895-8.CrossRefGoogle Scholar
Conde, L.N., Pereira, V., Ribeiro, A. and Thadeu, D. (1971) Jazigos hipogénicos de estanho e volframio, J Congreso Hispano-Luso-Americano de Geología Económica, Madrid-Lisboa. Livro-Guía Excursiones, n 7, 81 pp.Google Scholar
Dudykina, A.S. (1959) Paragenetic associations of element admixtures in cassiterite of different genetic types of tin ore deposits. Trudy lnstituta Geologii, Akademiya Nauk SSSR 22, 111-21.Google Scholar
Dulski, P., Möller, P., Villalpando, A. and Schneider, H.J. (1982) Correlation of trace element fractionation in cassiterites with the genesis of the Bolivian Metallotect. In: Metallization Associated with Acid Magmatism (Ed. A.M. Evans). 71-83.Google Scholar
Dusausoy, Y., Ruck, R. and Gaite, J.M. (1988) Study of the symmetry of Fe+3+ sites in SnO2 by electron paramagnetic resonance. Phys. Chem. Minerals, 15, 300–3.CrossRefGoogle Scholar
Florov, B.L., Bichus, B., Yakovlev, Ya. V. and Kholmogorov, A.I. (1980) Some typomorphic characteristics of cassiterites from Yakutia. Zap. Vses. Min. Obshch., 109, 174-86.Google Scholar
Giuliani, G. (1987) La cassitérite zonée du gisement de Sokhret Allal (Granite des Zaer, Maroc Central): Composition chimique et phases fluides associées. Mineral. Deposita 22, 251-3.CrossRefGoogle Scholar
Gonzalo, E. and Gracia, A.S. (1985) Yacimientos de Sn del Oeste de España: Ensayo de caracterización y clasificación económicas. Cuadernos do Laboratorio Xeolóxico de Laxe, no. 9, 265-303.Google Scholar
Gumiel, P. and Pineda, A. (1981) Estudio del yacimiento de Scheelita de La Parrilla (Cáiceres-Badajoz). Tecniterrae, Madrid 39, 16–38.Google Scholar
Hall, M.M. and Ribbe, P.H. (1971) An electron microprobe study of luminescence centers in cassiterite. Amer. Mineral. 56, 31–46.Google Scholar
Izoret, L., Marnier, G. and Dusausoy, Y. (1985) Caractérisation cristallochimique de la cassitérite des gisements d'etain et de tungtène de Galice, Espagne. Canad. Mineral., 23, 221–31.Google Scholar
Mangas, J. (1987) Estudio de las inclusiones fluidas en los yacimientos españoles de Sn asociados a granitos hercínicos. PhD. Thesis, Univ. Salamanca, 646 pp.Google Scholar
Marconnet, B. and Gagny, C. (1984) La mine de las Navas: des filons de pegmatite à cassitérite en “Cone-Sheet” eliptiques sur une intrusion granitique 5. prospecter (province de Cficeres, Espagne). Cron. Rech. Min. 476, 47–60.Google Scholar
Möller, P., Dulski, P., Szacki, W., Malow, G. and Riedel, E. (1988) Substitution of tin in cassiterite by tantalum, niobium, tungsten, iron and manganese.. Geochim. Cosmochim. Acta, 52, 1497–1503.CrossRefGoogle Scholar
Moore, F. and Howie, R.A. (1979) Geochemistry of some Cornubian cassiterites. Mineral. Deposita 14, 103-7.CrossRefGoogle Scholar
Murciego, A. (1990) Estudio mineralógico y cristaloquímico de la casiterita. Relación con su génesis. PhD. Thesis, Univ. Salamanca. 610 pp.Google Scholar
Murciego, A., García Sánchez, A. and Martín Pozas, J.M. (1987) Microinclusiones de casiteritas de distintos tipos de yacimientos del Centro-Oeste de España. Cuad. Lab. Xeol. Laxe 12, 273-88.Google Scholar
Ramirez, J. (1979) Características del campo filoniano de Calabor (Zamora, España). Boletín Geológico y Minero, TXC, 148-61.Google Scholar
Rémand, G. (1973) Exemples d'identification et de localisation des éléments en trace dans les minéraux luminescents à l'aide de la microsonde ionique. Bull. Sac. Fr. Min. Cristallogr. 96, 183-98.Google Scholar
Ribeiro, A. (1968) Controle estructural de mineralizacao de estanho e volframio em Tras-os-montes oriental. Bol. Minas, Lisboa, 5, 306.Google Scholar
Ruck, R., Dusausoy, Y. and Gaite, J.M. (1988) Electron Paramagnetic Resonance of a new center Fe3+ in cassiterite. Bull. Mineral., 111, 143–7.Google Scholar
Ruck, R., Dusausoy, Y., Nguyen Trung, C., Gaite, J.M. and Murciego, A. (1989) Powder EPR study of natural cassiterites and synthetic SnO2 doped with Fe, Ti, Na and Nb. Eur. J. Mineral. 1, 343-52.CrossRefGoogle Scholar
Schneider, H.J., Dulski, P., Luck, J., Möller, P. and Villalpando, A. (1978) Correlation of trace element distribution in cassiterites and ge0tectonic position of their deposits in Bolivia. Mineral. Deposita 13, 119-22.CrossRefGoogle Scholar
Shannon, R.D. (1976) Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Cristallogr., A 32, 751-67.CrossRefGoogle Scholar
Stevenson, B.G. and Taylor, R.G. (1973) Trace element contents of some cassiterites from Eastern Australia. Proc. R. Sac. Queensland, 84 (3), 43–54.Google Scholar
Thadeu, D. (1973) Les gisements stanno-wolframitiques du Portugal. Ann. Sac. Geol. Belg. Liege, 96, 5–30.Google Scholar
Wang, R. (1985) Etude minéralogique des inclusions dans les cassitérites de quelques gisements d'étain. Memoire D.E.A. UPS, Toulouse.Google Scholar
Wang, R. (1988) Etude minéralogique et cristallochimique de cassitérite, niobotantalates et minéraux disséminés du granite de Beauvoir (Allier): Implications métallogéniques. Thèse de 1’ Université P. Sabatier, Toulouse. 204 pp.Google Scholar