| Reference Type | Journal (article/letter/editorial) |
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| Title | Ultramafic xenoliths from the Elwin Bay kimberlite: the first Canadian paleogeotherm |
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| Journal | Canadian Journal of Earth Sciences |
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| Authors | Mitchell, Roger H. | Author |
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| Year | 1977 (June 1) | Volume | 14 |
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| Issue | 6 |
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| Publisher | Canadian Science Publishing |
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| DOI | doi:10.1139/e77-110Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 475398 | Long-form Identifier | mindat:1:5:475398:2 |
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| GUID | 0 |
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| Full Reference | Mitchell, Roger H. (1977) Ultramafic xenoliths from the Elwin Bay kimberlite: the first Canadian paleogeotherm. Canadian Journal of Earth Sciences, 14 (6) 1202-1210 doi:10.1139/e77-110 |
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| Plain Text | Mitchell, Roger H. (1977) Ultramafic xenoliths from the Elwin Bay kimberlite: the first Canadian paleogeotherm. Canadian Journal of Earth Sciences, 14 (6) 1202-1210 doi:10.1139/e77-110 |
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| In | (1977, June) Canadian Journal of Earth Sciences Vol. 14 (6) Canadian Science Publishing |
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| Abstract/Notes | Ultramafic xenoliths from the Elwin Bay kimberlite provide samples of the upper mantle beneath arctic Canada. The compositions of coexisting pyroxenes have been used to estimate the temperatures and pressures of equilibration of the three texturally and mineralogically distinct types of xenolith, i.e. spinel lherzolite (840–935 °C), coarse garnet lherzolite (925–1085 °C at 39.5–49.5 kbar (3.95–4.95 × 106 kPa)) and porphyroclastic garnet lherzolite (1090–1180 °C at 47.0–51.5 kbar (4.7–5.2 × 106 kPa)). The garnet lherzolite data define an inflected paleogeotherm whose upper limb lies at shallower depths than found for the Thaba Putsoa – Mothae paleogeotherm but which is identical to the Montana paleogeotherm. No evidence is found for iron enrichment of the upper mantle in this region. |
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These are possibly similar items as determined by title/reference text matching only.
