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

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

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  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 النقاط
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