96/05720 The analysis of trace elements
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Article
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1996
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Elsevier Science
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The anthracite, a low-grade contact metamorphic rock, is found in the Late Permian coal seams which are distributed around the Qitianiing granite body in Hunan province. Their petrological and petrochemical, trace-ele- ## Sources, Winning, Properties ment, rare-earth element and carbon-isotope ge