| Reference Type | Journal (article/letter/editorial) |
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| Title | The composition of anomalous plagioclase glass and coexisting plagioclase from Mistastin Lake, Labrador, Canada |
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| Journal | Mineralogical Magazine |
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| Authors | Currie, K. L. | Author |
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| Year | 1971 (December) | Volume | 38 |
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| Issue | 296 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_38/38-296-511.pdf+ |
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| DOI | doi:10.1180/minmag.1971.038.296.14Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 6510 | Long-form Identifier | mindat:1:5:6510:2 |
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| GUID | 0 |
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| Full Reference | Currie, K. L. (1971) The composition of anomalous plagioclase glass and coexisting plagioclase from Mistastin Lake, Labrador, Canada. Mineralogical Magazine, 38 (296) 511-517 doi:10.1180/minmag.1971.038.296.14 |
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| Plain Text | Currie, K. L. (1971) The composition of anomalous plagioclase glass and coexisting plagioclase from Mistastin Lake, Labrador, Canada. Mineralogical Magazine, 38 (296) 511-517 doi:10.1180/minmag.1971.038.296.14 |
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| In | (1971, December) Mineralogical Magazine Vol. 38 (296) Mineralogical Society |
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| Abstract/Notes | SummaryAnorthosite country rocks near the fissure vents of an andesitic resurgent caldera contain coexisting crystalline plagioclase, pseudomorphous plagioclase glass, and anomalously dense, massive plagioclase glass. Glass pseudomorphous after labradorite (An 53) has the composition of oligoclase (An 17). Large masses of dense plagioclase glass have compositions near An 53, but relict crystalline plagioclase within them has compositions near An 80. Devitrification products of this glass have potassium-rich compositions. These compositions are compatible with partial thermal melting in a high-temperature, moderate-pressure pulse. Such a pulse might be asscciated with a confined chemical explosion. |
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