cratonal
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cratonal — cra·ton·al … English syllables
Geosyncline — In geology, geosyncline is a term still occasionally used for a subsiding linear trough that was caused by the accumulation of sedimentary rock strata deposited in a basin and subsequently compressed, deformed, and uplifted into a mountain range … Wikipedia
Pottsville Formation — Stratigraphic range: Pennsylvanian Typical Pottsville Formation at Worlds End State Park, Sullivan County, Pennsylvania Type sedimentary … Wikipedia
