| Reference Type | Journal (article/letter/editorial) |
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| Title | Radiometric Age Determinations from the Long Range Mountains, Newfoundland |
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| Journal | Canadian Journal of Earth Sciences |
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| Authors | Pringle, I. R. | Author |
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| Miller, J. A. | Author |
| Warrell, D. M. | Author |
| Year | 1971 (October 1) | Volume | 8 |
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| Issue | 10 |
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| Publisher | Canadian Science Publishing |
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| DOI | doi:10.1139/e71-120Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 472877 | Long-form Identifier | mindat:1:5:472877:5 |
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| GUID | 0 |
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| Full Reference | Pringle, I. R., Miller, J. A., Warrell, D. M. (1971) Radiometric Age Determinations from the Long Range Mountains, Newfoundland. Canadian Journal of Earth Sciences, 8 (10) 1325-1330 doi:10.1139/e71-120 |
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| Plain Text | Pringle, I. R., Miller, J. A., Warrell, D. M. (1971) Radiometric Age Determinations from the Long Range Mountains, Newfoundland. Canadian Journal of Earth Sciences, 8 (10) 1325-1330 doi:10.1139/e71-120 |
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| In | (1971, October) Canadian Journal of Earth Sciences Vol. 8 (10) Canadian Science Publishing |
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| Abstract/Notes | Foliated granite plutons in the Long Range give a Rb–Sr whole rock age of 1130 ± 90 m.y. and a K–Ar biotite age of 840 ± 20 m.y. These ages agree with other Grenville dates and may be fitted into the Grenville pattern. The K–Ar age of 805 ± 35 m.y. for the diabase dike swarm is also taken as the age of the Lighthouse Cove Formation on Belle Isle. This demonstrates that there is probably a non-sequence between this formation and the overlying Lower Cambrian sediments. The low initial 87Sr/86Sr ratio of 0.702 ± 0.004 indicates that these dikes have a deep crustal or mantle origin. |
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