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Primmer, T. J. (1985) A transition from diagenesis to greenschist facies within a major Variscan fold/thrust complex in SW England. Mineralogical Magazine, 49 (352) 365-374 doi:10.1180/minmag.1985.049.352.07

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Reference TypeJournal (article/letter/editorial)
TitleA transition from diagenesis to greenschist facies within a major Variscan fold/thrust complex in SW England
JournalMineralogical MagazineISSN0026-461X
AuthorsPrimmer, T. J.Author
Year1985 (June)Volume49
Issue352
PublisherMineralogical Society
Download URLhttps://rruff.info/doclib/MinMag/Volume_49/49-352-365.pdf+
DOIdoi:10.1180/minmag.1985.049.352.07Search in ResearchGate
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Mindat Ref. ID3742Long-form Identifiermindat:1:5:3742:0
GUID0
Full ReferencePrimmer, T. J. (1985) A transition from diagenesis to greenschist facies within a major Variscan fold/thrust complex in SW England. Mineralogical Magazine, 49 (352) 365-374 doi:10.1180/minmag.1985.049.352.07
Plain TextPrimmer, T. J. (1985) A transition from diagenesis to greenschist facies within a major Variscan fold/thrust complex in SW England. Mineralogical Magazine, 49 (352) 365-374 doi:10.1180/minmag.1985.049.352.07
In(1985, June) Mineralogical Magazine Vol. 49 (352) Mineralogical Society
Abstract/NotesAbstractThe north coast of Cornwall, from Bude to Newquay, provides a continuous section through a major Variscan fold/thrust complex. Illite crystallinity studies have revealed a transition from diagenesis in the north to greenschist facies metamorphism in the south in the Upper Palaeozoic succession. More detailed studies of mineral assemblages in both metabasites and pelitic rocks support the regional pattern of metamorphism indicated by illite crystallinity, and show that locally in the Tintagel district, the grade of metamorphism may have reached middle to upper greenschist facies. An attempt to correlate the above data with temperatures (108–985°C) derived from O-isotope geothermometers is made. Interpretation of the metamorphic data presented helps to emphasize the tectonic importance of the major structures seen in the fold/thrust complex.


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