THE OCEURENCE PATTERNS OF PETROGRAPHIC FACIES AND PALAEOGEO GRAPHY AND OF LATE TRA ASSIC SEAMS IN YUNNAN PROVINCE
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Abstract
By compilingthe paleogeo raphic maps of petrographic facies of several late Triassic periods in YunnanProvince. the paper analysed and approachedthe occurence patterns of the late Triassin seams,making suggestions for classification andcoal-bearing potential of the Late Trissic coal-forming periods in the province.
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