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- Lab number
- GSC-1195-2
- Material dated
- bison bone collagen; collagène osseux de bison
- Taxa dated
- Bison sp. vertebrae, sacrum, and ribs (500 g, id. by C.S. Churcher)
- Locality
- north bank of the North Saskatchewan River, 565 m asl, 10 km south-southwest of Bellis and 18 km east-southeast of Smoky Lake, Alberta
- Map sheet
- 83 I/01
- Submitter
- D.A. St-Onge
- Date submitted
- May 26, 0098
- Measured Age
- 2700 ± 140
- Normalized Age
- 2800 ± 140
- δ13C (per mil)
- -18.5
- Significance
- palaeobiology; paléobiologie
- Context
- sandy silt alluvium exposed in a natural cutbank, 1.5 m depth, in a postglacial river terrace
- Associated taxa
- Mammalia: Bison sp
- Additional information
- GSC-1195, same sample, with only a 1-hour leach in 0.1N NaOH: 2980 +/- 130 BP. GSC-1195-2 had an overnight leach in 0.1N NaOH.
- Comments
- Bellis, GaPb-VP: Comment on GSC-1195 (D.A. St-Onge): The bones date a well developed abandoned terrace level (the lower of two) on the northern wall of the North Saskatchewan Valley; the enclosing sediments were deposited when the river floodplain was about 12 m above present river level (cf. St-Onge, 1970, 1972). The date correlates well with both GSC-1205, 10200 ± 160 years (Lowdon and Blake, 1979) on Bison bones in gravel alluvium of a high level (550 m) river terrace at Athabasca which approximates the beginning of postglacial river valley development in this area, and with GSC-1207, 6040 ± 140 (Lowdon and Blake, 1979) on Bison bones from sandy silty alluvium of a middle level river terrace on North Saskatchewan River 7 km upstream from this site; the latter date relates to a phase in the history of North Saskatchewan River when its floodplain was about 20 m above present river level.