Petrologic significance of rare earths d
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R. Emmermann; L. Daieva; J. Schneider
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Article
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1975
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Springer
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English
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Granitic rocks of various ages and composition are found in the Schwarzwald region of West Germany. These granites range in age from Upper Devonian to Upper Carboniferous (370-280 m.y.) and in composition from granodiorites to alkali feldspar granites. 14 representative samples of twelve different t