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White, S. H., Huggett, J. M., Shaw, H. F. (1985) Electron-optical studies of phyllosilicate intergrowths in sedimentary and metamorphic rocks. Mineralogical Magazine, 49 (352) 413-423 doi:10.1180/minmag.1985.049.352.12

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Reference TypeJournal (article/letter/editorial)
TitleElectron-optical studies of phyllosilicate intergrowths in sedimentary and metamorphic rocks
JournalMineralogical MagazineISSN0026-461X
AuthorsWhite, S. H.Author
Huggett, J. M.Author
Shaw, H. F.Author
Year1985 (June)Volume49
Issue352
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_49/49-352-413.pdf+
DOIdoi:10.1180/minmag.1985.049.352.12Search in ResearchGate
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Mindat Ref. ID3747Long-form Identifiermindat:1:5:3747:5
GUID0
Full ReferenceWhite, S. H., Huggett, J. M., Shaw, H. F. (1985) Electron-optical studies of phyllosilicate intergrowths in sedimentary and metamorphic rocks. Mineralogical Magazine, 49 (352) 413-423 doi:10.1180/minmag.1985.049.352.12
Plain TextWhite, S. H., Huggett, J. M., Shaw, H. F. (1985) Electron-optical studies of phyllosilicate intergrowths in sedimentary and metamorphic rocks. Mineralogical Magazine, 49 (352) 413-423 doi:10.1180/minmag.1985.049.352.12
In(1985, June) Mineralogical Magazine Vol. 49 (352) Mineralogical Society
Abstract/NotesAbstractThe results of a microstructural study by backscattered scanning electron microscopy and a microchemical study using X-ray microprobe analysis of phyllosilicate intergrowths from sandstones, shales, metagreywackes, and low-grade schists are presented. The microstructural study revealed that the intergrowths thicken and become more coherent with metamorphic grade; the intergrowths change from incoherent to coherent in the anchizone. The increasing coherency is mirrored by an increase in the crystallinity indices of the illites/phengites. Chemical analysis of the individual intergrowth phases was difficult in the sediments and no systematic compositional variations were recorded. However, clear compositional trends with increasing metamorphic grade emerged in the phengites from the metagreywackes and schists, but in the chlorites only slight compositional changes were recorded.


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