| Reference Type | Journal (article/letter/editorial) |
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| Title | Fluid inclusion evidence for the development of Zn–Pb–Cu–F skarn mineralization in SW Sardinia, Italy |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Boni, M. | Author |
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| Rankin, A. H. | Author |
| Salvadori, M. | Author |
| Year | 1990 (June) | Volume | 54 |
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| Issue | 375 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_54/54-375-279.pdf+ |
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| DOI | doi:10.1180/minmag.1990.054.375.13Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 1615 | Long-form Identifier | mindat:1:5:1615:9 |
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| GUID | 0 |
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| Full Reference | Boni, M., Rankin, A. H., Salvadori, M. (1990) Fluid inclusion evidence for the development of Zn–Pb–Cu–F skarn mineralization in SW Sardinia, Italy. Mineralogical Magazine, 54 (375) 279-287 doi:10.1180/minmag.1990.054.375.13 |
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| Plain Text | Boni, M., Rankin, A. H., Salvadori, M. (1990) Fluid inclusion evidence for the development of Zn–Pb–Cu–F skarn mineralization in SW Sardinia, Italy. Mineralogical Magazine, 54 (375) 279-287 doi:10.1180/minmag.1990.054.375.13 |
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| In | (1990, June) Mineralogical Magazine Vol. 54 (375) Mineralogical Society |
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| Abstract/Notes | AbstractNew microthermometric data are presented for fluid inclusions in epidote, garnet, hedenbergite, armenite, quartz, fluorite, calcite and baryte associated with skarn-related base metal mineralization in the Iglesiente and Sulcis mining districts of SW Sardinia. Based on a comparison of these data with published results for vein and palaeokarst mineralization a ‘two fluid’ model is proposed for the mineralization in the area. An early fluid, responsible for skarn-associated sulphide mineralization, developed above 350–400°C with a salinity generally less than about 10 eq. wt.% NaCl, and on cooling was also responsible for some of the vein and palaeokarst mineralization. The origin of this fluid is, at this stage, speculative (meteoric/magmatic?). A separate fluid regime, characterized by lower temperatures and much higher salinities (Th < 140°C and >20 eq. wt. % NaCl) was mainly responsible for the bulk of the Permo-Triassic vein and palaeokarst mineralization, and some late-stage skarn mineralization. This low-temperature, saline (basinal or evaporitic?) brine appears to have mixed with more dilute groundwaters during this stage of mineralization. The existence of two (or more) mineralizing fluids with different characteristics at the end of Hercynian tectonic/magmatic events appears to be widespread throughout the whole of Europe. |
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