الصفحة الرئيسية >  Term: Upper Barren Coal Measures
Upper Barren Coal Measures

The part of the Carboniferous strata of the Appalachian field that is now assigned to the Dunkard group of the Permian series. Obsolete.

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  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 النقاط
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