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Canada / AB / FiPm-8 (Duffield) / S-107
- Lab number
- S-107
- Material dated
- wood; bois
- Locality
- abandoned meander of North Saskatchewan River, north of Duffield, Alberta
- Map sheet
- 83 G/08
- Submitter
- C.P. Gravenor
- Date submitted
- March 23, 0097
- Measured Age
- 7350 ± 100
- Normalized Age
- 7350 ± 100
- δ13C (per mil)
- -25.0
- Significance
- palaeobiology; paléobiologie
- Context
- 3 m above base of marl layer 6 m thick overlying floodplain sand and silt
- Associated taxa
- Mammalia: Bison occidentalis
- Comments
- FiPm-8, Duffield: Comment (McCallum and Wittenberg, 1962: 74): If the age of the wood corresponds to the time of marl formation, the North Saskatchewan River must have been cut to almost its present level some 8000 yr BP, implying rapid cutting after deglaciation. This would also represent one of the latest occurrences of ~Bison occidentalis<. The greater apparent age of the carbonate fraction of the marl suggests alteration of the C14 content. Comment (L.V. Hills in Lowdon and Blake, 1968: 221): This date confirms an earlier date of 8150 +/- 100 yr (S-106) on wood at base of marl, and indicates that during last 8300 yr downcutting by North Saskatchewan River has been slow. Comment (R.E. Morlan): Both date lists give latitude as 52° 25' 33" and longitude as 114° 16' 38" which place the site in Borden block FcPn. The latitude is clearly incorrect by a degree. Brumley and Rushworth (1983) list the site as FiPm-8, and the center of this Borden block provides coordinates for the records in this data base.