Country:
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USA
|
Province:
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Arkansas, Washington Co.
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Locality:
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Fayetteville, 1.2 mls W of, sec.20
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Layer:
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Fayetteville Fm., middle portion |
Lower Boundary:
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UAR basal--lower shale of Fayetteville, 327 million years
|
Upper Boundary:
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UAR Limest.--upper shale of Fayetteville, 324.8 million years
|
Georeference:
|
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