Spray, John G., Dunning, Gregory R. (1991) A U/Pb age for the Shetland Islands oceanic fragment, Scottish Caledonides: evidence from anatectic plagiogranites in ‘layer 3’ shear zones. Geological Magazine, 128 (6) 667-671 doi:10.1017/s0016756800019762
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | A U/Pb age for the Shetland Islands oceanic fragment, Scottish Caledonides: evidence from anatectic plagiogranites in ‘layer 3’ shear zones | ||
| Journal | Geological Magazine | ||
| Authors | Spray, John G. | Author | |
| Dunning, Gregory R. | Author | ||
| Year | 1991 (November) | Volume | 128 |
| Page(s) | 667-671 | Issue | 6 |
| Publisher | Cambridge University Press (CUP) | ||
| DOI | doi:10.1017/s0016756800019762Search in ResearchGate | ||
| Mindat Ref. ID | 255243 | Long-form Identifier | mindat:1:5:255243:3 |
| GUID | 17959568-2550-4e73-99fb-08bc2ae1864f | ||
| Full Reference | Spray, John G., Dunning, Gregory R. (1991) A U/Pb age for the Shetland Islands oceanic fragment, Scottish Caledonides: evidence from anatectic plagiogranites in ‘layer 3’ shear zones. Geological Magazine, 128 (6) 667-671 doi:10.1017/s0016756800019762 | ||
| Plain Text | Spray, John G., Dunning, Gregory R. (1991) A U/Pb age for the Shetland Islands oceanic fragment, Scottish Caledonides: evidence from anatectic plagiogranites in ‘layer 3’ shear zones. Geological Magazine, 128 (6) 667-671 doi:10.1017/s0016756800019762 | ||
| In | (1991, November) Geological Magazine Vol. 128 (6) Cambridge University Press (CUP) | ||
| Abstract/Notes | AbstractHigh precision U/Pb data obtained from zircons extracted from plagiogranite within the gabbro unit of the Shetland Islands oceanic fragment of northeast Scotland yield an age of 492 ± 3 Ma. Field relations indicate that the plagiogranites were generated by the partial melting of amphibolitized gabbros within high-temperature shear zones formed due to crustal deformation and fluid infiltration occurring in proximity to a spreading centre. The U/Pb data therefore constrain the crystallization age of the Shetland complex. This age is similar to U/Pb ages obtained from the Leka (497±2 Ma), Karmoy (493+7-4 Ma) and Gulfjellet (489±3 Ma) oceanic fragments of the Norwegian Caledonides, and the Pipestone Pond (4943-2 Ma) and Betts Cove (4893-2 Ma) oceanic fragments of the Canadian Appalachians. | ||
References Listed
These are the references the publisher has listed as being connected to the article. Please check the article itself for the full list of references which may differ. Not all references are currently linkable within the Digital Library.
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