| Reference Type | Journal (article/letter/editorial) |
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| Title | The reaction antigorite β olivine + talc + H2O in the Bergell aureole, N. Italy |
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| Journal | Mineralogical Magazine | ISSN | 0026-461X |
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| Authors | Worden, R. H. | Author |
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| Droop, G. T. R. | Author |
| Champness, P. E. | Author |
| Year | 1991 (September) | Volume | 55 |
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| Issue | 380 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_55/55-380-367.pdf+ |
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| DOI | doi:10.1180/minmag.1991.055.380.07Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 1741 | Long-form Identifier | mindat:1:5:1741:5 |
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| GUID | 0 |
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| Full Reference | Worden, R. H., Droop, G. T. R., Champness, P. E. (1991) The reaction antigorite β olivine + talc + H2O in the Bergell aureole, N. Italy. Mineralogical Magazine, 55 (380) 367-377 doi:10.1180/minmag.1991.055.380.07 |
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| Plain Text | Worden, R. H., Droop, G. T. R., Champness, P. E. (1991) The reaction antigorite β olivine + talc + H2O in the Bergell aureole, N. Italy. Mineralogical Magazine, 55 (380) 367-377 doi:10.1180/minmag.1991.055.380.07 |
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| In | (1991, September) Mineralogical Magazine Vol. 55 (380) Mineralogical Society |
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| Abstract/Notes | AbstractThe low-grade contact metamorphic decomposition of antigorite serpentine to olivine and talc has been studied using TEM. The reaction was more complex than has been assumed by previous workers in that (i) FeO played a significant role in controlling the temperature of reaction, and (ii) minor amounts of an aluminous phase (chlorite) were probably produced. The reaction occurred over a range of temperatures within which the assemblage antigorite + talc + olivine was stable and the antigorite became progressively more Mg-rich as the reaction proceeded. Oriented nucleation of talc occurred within the antigorite. However, the olivine breakdown product did not require nucleation; rather it appears to have grown on pre-existing olivine grains. Communication between the sites of reaction was probably facilitated by an ubiquitous grain-boundary fluid. |
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