| Reference Type | Journal (article/letter/editorial) |
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| Title | Metamorphosed Lamprophyres and the Late Thermal History of the Moines |
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| Journal | Geological Magazine |
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| Authors | Johnson, M. R. W. | Author |
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| Dalziel, I. W. D. | Author |
| Year | 1966 (June) | Volume | 103 |
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| Issue | 3 |
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| Publisher | Cambridge University Press (CUP) |
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| DOI | doi:10.1017/s001675680005281xSearch in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 249634 | Long-form Identifier | mindat:1:5:249634:8 |
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| GUID | 0 |
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| Full Reference | Johnson, M. R. W., Dalziel, I. W. D. (1966) Metamorphosed Lamprophyres and the Late Thermal History of the Moines. Geological Magazine, 103 (3) 240-249 doi:10.1017/s001675680005281x |
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| Plain Text | Johnson, M. R. W., Dalziel, I. W. D. (1966) Metamorphosed Lamprophyres and the Late Thermal History of the Moines. Geological Magazine, 103 (3) 240-249 doi:10.1017/s001675680005281x |
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| In | (1966, June) Geological Magazine Vol. 103 (3) Cambridge University Press (CUP) |
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| Abstract/Notes | AbstractCertain lamprophyres in Moidart exhibit at least three sets of minor structures (cleavages, lineations and small-scale folds). During the formation of the first set the lamprophyres acquired a schistose fabric: hornblende and biotite laths crystallized along the axial surfaces of tightly compressed folds. The deformation episodes recognized in the lamprophyre sheets post-date the main episodes of major and minor folding (F1-F3) that affected the surrounding Moine gneisses. The existence of a metamorphic fabric in these lamprophyres raises interesting problems—was the thermal energy required to “metamorphose” the lamprophyres derived from deformational heat, or by a heat flow from the Moine country rocks, or were the lamprophyres deformed during cooling and consolidation from the magmatic state (autothermal metamorphism) ? |
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