Villaseca González, Carlos and López García, José Ángel and Barbero González, Luis C. (2005) Estudio de la composición isotópica (Pb-S-O) de las mineralizaciones Pb-Zn de Mazarambroz (Banda Milonítica de Toledo). Geogaceta, 38 . pp. 283-286. ISSN 0213-683X
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Abstract
Combined lead, sulphur and oxygen isotopes have been analysed in ore (galena and sphalerite) and associated (quartz, barite) minerals from the Mazarambroz Pb-Zn mineralization. Lead isotopic model ages in galenas cluster around 121 ± 8 Ma in good agreement with previously suggested mesozoic age of this Pb-Zn mineralization estimated by apatite fission tracks in mylonitic wall-rocks. Isotopic composition of Mazarambroz mineralization suggests a high rock (metamorphic/granitic)/fluid interaction with minor participation of meteoric waters. These fluids circulated deeply along fragile cracks of the major shear zone of Toledo.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Pb-Zn mineralization, Pb-S-O isotopes, Iberian Hercynian Belt |
| Subjects: | Sciences > Geology > Petrology |
| ID Code: | 12397 |
| Deposited On: | 11 Mar 2011 11:13 |
| Last Modified: | 11 Mar 2011 11:13 |
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