| Reference Type | Journal (article/letter/editorial) |
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| Title | A metamorphosed, layered alpine-type peridotite in the Langavat Valley, South Harris, Outer Hebrides |
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| Journal | Mineralogical Magazine |
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| Authors | Livingstone, A. | Author |
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| Year | 1976 (March) | Volume | 40 |
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| Issue | 313 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_40/40-313-493.pdf+ |
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| DOI | doi:10.1180/minmag.1976.040.313.09Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 6917 | Long-form Identifier | mindat:1:5:6917:9 |
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| GUID | 0 |
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| Full Reference | Livingstone, A. (1976) A metamorphosed, layered alpine-type peridotite in the Langavat Valley, South Harris, Outer Hebrides. Mineralogical Magazine, 40 (313) 493-499 doi:10.1180/minmag.1976.040.313.09 |
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| Plain Text | Livingstone, A. (1976) A metamorphosed, layered alpine-type peridotite in the Langavat Valley, South Harris, Outer Hebrides. Mineralogical Magazine, 40 (313) 493-499 doi:10.1180/minmag.1976.040.313.09 |
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| In | (1976, March) Mineralogical Magazine Vol. 40 (313) Mineralogical Society |
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| Abstract/Notes | SummaryA layered aipine-type peridotite, of pre-Scourian age(?), has been metamorphosed in the granulite facies then partially retrogressed to greenschist facies assemblages. Following granulite facies metamorphism of the dunite-harzburgite peridotite, granitization and metasomatism modified the peridotite by adding calcium and generated olivine-tremolite rocks. Anthophyllite-rich rocks developed from localized orthopyroxene-rich zones. The main epoch of serpentinization followed after tremolite formation and removed a portion of the calcium previously added, but with negligible effect upon the original trace-element content. Between tremolite generation and the main period of serpentinization greenschist facies assemblages formed. The layered rocks possess a repetitive, chemical variation normally attributable to basic igneous processes, although they may have formed either by vein metasomatism or by metasomatism of a disrupted layered igneous series. Twelve rock and five mineral analyses are presented, and trace element data for twenty-one rocks. |
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