Journal article
The role of biotite as a catalyst in reaction mechanisms that form sillimanite
Canadian mineralogist, Vol.29, pp.943-963
12/1991
Abstract
When sillimanite grows in micaceous rocks, the constraints imposed on material transport by the matrix assemblage generally produce reaction mechanisms that use biotite as a mineral catalyst. In many cases there is clear textural evidence for local reactions that consume biotite, whereas evidence for other local reactions that produce biotite is subtle and difficult to recognize. This type of reaction mechanism is responsible for the biotite-rich selvedges observed in many rocks that contain nodular sillimanite. Failure to account for all reactions that occurred during the growth of sillimanite in rocks with these textures can result in erroneous conclusions about theP-T-X path of metamorphism.
Details
- Title: Subtitle
- The role of biotite as a catalyst in reaction mechanisms that form sillimanite
- Creators
- Charles T Foster - University of Iowa
- Contributors
- T. M Gordon (Editor) - University of CalgaryR. F Martin (Editor) - McGill University
- Resource Type
- Journal article
- Publication Details
- Canadian mineralogist, Vol.29, pp.943-963
- Publisher
- Mineralogical Association of Canada
- ISSN
- 0008-4476
- eISSN
- 1499-1276
- Alternative title
- Quantitative methods in petrology; an issue in honor of Hugh J. Greenwood
- Language
- English; French
- Date published
- 12/1991
- Academic Unit
- Earth and Environmental Sciences
- Record Identifier
- 9984240779802771
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