| Reference Type | Journal (article/letter/editorial) |
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| Title | Photo-emission electron microscopy (PEEM) heating investigations of a natural amphibole sample |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Wartho, J.-A. | Author |
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| Year | 1995 (March) | Volume | 59 |
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| Issue | 394 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_59/59-394-121.pdf+ |
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| DOI | doi:10.1180/minmag.1995.59.394.12Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 2618 | Long-form Identifier | mindat:1:5:2618:9 |
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| GUID | 0 |
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| Full Reference | Wartho, J.-A. (1995) Photo-emission electron microscopy (PEEM) heating investigations of a natural amphibole sample. Mineralogical Magazine, 59 (394) 121-127 doi:10.1180/minmag.1995.59.394.12 |
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| Plain Text | Wartho, J.-A. (1995) Photo-emission electron microscopy (PEEM) heating investigations of a natural amphibole sample. Mineralogical Magazine, 59 (394) 121-127 doi:10.1180/minmag.1995.59.394.12 |
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| In | (1995, March) Mineralogical Magazine Vol. 59 (394) Mineralogical Society |
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| Abstract/Notes | AbstractPEEM allows ‘real-time’ observations to be made of solid-state transformations and other high-temperature processes taking place during vacuum-heating up to c. 2000°C The solid state transformations of an amphibole-rich hornblendite specimen have been observed in the temperature range of 750–1000°C (± 50°C Between c. 970–990°C a rapid change in orientation contrast was observed, indicating a structural rearrangement from an oxyhornblende crystal lattice to a clinopyroxene structure. This phase retains the original amphibole shape and texture (including two 120°C intersecting cleavage traces), but possesses a clinopyroxene crystal structure. At higher temperatures this phase is seen to decompose, forming iron oxides and other fine-grained products. PEEM has provided useful information on both the nature and rates of transformation of natural amphiboles which has proved invaluable in our understanding of the mineralogically-controlled mechanisms of argon release during 40Ar/39Ar dating of amphibole samples. |
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