Other articles where Anthracite Belt is discussed: Carboniferous Period: Pennsylvanian cyclothems, tillites, and turbidites: …Mammoth coal bed of the Anthracite Belt in eastern Pennsylvanian has an average thickness of 10–12 metres (35–40 feet) throughout its extent. The Pittsburgh seam in western Pennsylvania averages 4 metres (13 feet) thick and is reported workable over 15,540 square ...
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