Genesis and diagenesis of the Cambrian m
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M. A. Bennett
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Article
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1987
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John Wiley and Sons
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English
β 866 KB
Manganese mineralization occurs throughout the greywackes and pelites of the Harlech Grits Group (LowedMiddle Cambrian) of the Harlech area, North Wales. It is most intense at the base of the Hafotty Formation where it forms a discrete ore bed, and in the upper half of the Gamlan Formation where it