| Reference Type | Journal (article/letter/editorial) |
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| Title | Evolution of fluid phases associated with lithium pegmatites from SE Ireland |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Whitworth, Martin P. | Author |
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| Rankin, Andrew H. | Author |
| Year | 1989 (June) | Volume | 53 |
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| Issue | 371 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_53/53-371-271.pdf+ |
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| DOI | doi:10.1180/minmag.1989.053.371.01Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 1503 | Long-form Identifier | mindat:1:5:1503:9 |
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| GUID | 0 |
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| Full Reference | Whitworth, Martin P., Rankin, Andrew H. (1989) Evolution of fluid phases associated with lithium pegmatites from SE Ireland. Mineralogical Magazine, 53 (371) 271-284 doi:10.1180/minmag.1989.053.371.01 |
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| Plain Text | Whitworth, Martin P., Rankin, Andrew H. (1989) Evolution of fluid phases associated with lithium pegmatites from SE Ireland. Mineralogical Magazine, 53 (371) 271-284 doi:10.1180/minmag.1989.053.371.01 |
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| In | (1989, June) Mineralogical Magazine Vol. 53 (371) Mineralogical Society |
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| Abstract/Notes | AbstractFluid inclusions in quartz from internally zoned barren and spodumene-bearing pegmatites associated with the Leinster granite of SE Ireland represent a variety of early and late hydrothermal fluids responsible for the development of pegmatites. Microthermometry and optical examination reveal two main populations of inclusions. The first (Type 1) comprises low-moderate salinity brines which homogenized at temperatures up to about 400 Ā°C. The second (Type 2) appear to postdate the first population and are characteristically more saline and homogenized at temperatures mostly below 250 Ā°C. Isochores for model type 1 inclusion fluids indicate that a late-magmatic/early-hydrothermal fluid developed from the Leinster granite at 675 Ā°C. and 2.5 kbar and cooled isobarically into the spodumene stability field where complete crystallization of the pegmatites took place. Later, more saline, type 2 fluids of unknown origin may have contributed to the alteration of spodumene to muscovite and albite with the accompanying release of lithium from the lattice of spodumene. |
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