| Reference Type | Journal (article/letter/editorial) |
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| Title | The crystal morphology of plagioclase feldspar produced during isothermal supercooling and constant rate cooling experiments |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Corrigan, G. M. | Author |
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| Year | 1982 (December) | Volume | 46 |
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| Issue | 341 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_46/46-341-433.pdf+ |
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| DOI | doi:10.1180/minmag.1982.046.341.04Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 3433 | Long-form Identifier | mindat:1:5:3433:7 |
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| GUID | 0 |
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| Full Reference | Corrigan, G. M. (1982) The crystal morphology of plagioclase feldspar produced during isothermal supercooling and constant rate cooling experiments. Mineralogical Magazine, 46 (341) 433-439 doi:10.1180/minmag.1982.046.341.04 |
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| Plain Text | Corrigan, G. M. (1982) The crystal morphology of plagioclase feldspar produced during isothermal supercooling and constant rate cooling experiments. Mineralogical Magazine, 46 (341) 433-439 doi:10.1180/minmag.1982.046.341.04 |
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| In | (1982, December) Mineralogical Magazine Vol. 46 (341) Mineralogical Society |
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| Abstract/Notes | AbstractThe crystal morphology of plagioclase feldspar in seven mafic rocks has been studied by isothermal supercooling and constant rate cooling experiments at 1 atmosphere using the ‘wire-loop’ suspension method. There is a systematic variation in crystal morphology with supercooling (−ΔT), but the transitions between the different morphologies are gradual, and consecutive forms sometimes occur together. As −ΔT increases, the sequence of plagioclase morphology is generally laths → skeletal forms → fan spherulites. During isothermal supercooling the position of the plagioclase morphological fields is shown to be dependent on −ΔT, superheating (+ΔT), and also on time to a greater or lesser degree. Variations in melt composition and viscosity affect the position and slope of the boundaries of the fields. In the constant rate cooling experiments, the morphological type is dependent on the cooling rate and can be used to a limited extent as an indicator of the range of supercooling over which the first crystals nucleated and grew. |
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