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LocNo: 3309black chert in Alapah Lst.
Country: USA
Province: Alaska, Brooks Range
Locality: Kiruktagiak River, 13mls SW junct.,10864
Layer: black chert in Alapah Lst.
Lower Boundary: UAK Alapah Lst. base, 333.5 million years
Upper Boundary: UAK Alapah Lst. top, 326.4 million years
Georeference: