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IDLocality No.Sample No.USGS No.Quadrangle FormationAge 
103479SH133A79SH133A9949-SDPetersburg C-4 No DataSilurian - DevonianSelect
172780SH54C80SH54CUSGS MR 1526Port Alexander D-1 Halleck FormationCarnianSelect
172780SH54C80SH54CUSGS MR 1526Port Alexander D-1 Halleck FormationTriassicSelect