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Canada / AB / GePh-? (Athabasca) / GSC-1205
- Lab number
- GSC-1205
- Field number
- SV-68-25
- Material dated
- bison bone collagen; collagène osseux de bison
- Taxa dated
- Bison sp., 2 tibiae (300 g., id. by C.S. Churcher)
- Locality
- upper terrace on the north side of Athabasca River, 550 m asl, 600 m north of Athabasca, Alberta
- Map sheet
- 83 I/11
- Submitter
- D.S. St-Onge
- Date submitted
- May 28, 0098
- Measured Age
- 10000 ± 160
- Normalized Age
- 10200 ± 160
- δ13C (per mil)
- -17.6
- Significance
- palaeobiology; paléobiologie
- Context
- gravel in a high-level river terrace alluvium, 38-46 m above the present river level
- Associated taxa
- Mammalia: Bison sp
- Comments
- GePh-VP, Athabasca: Bison bones were collected by gravel pit operators and appear to derive from a bed about 4-5 m below the surface. GSC-1205 dates the initial period of postglacial sedimentation by Athabasca River following the draining of glacial Lake Athabasca. The date is in general agreement with GSC-1380 (10,200 +/- 280 BP) on freshwater gastropod shells that were deposited on the floor of glacial Lake Athabasca which had occupied the site immediately prior to the establishment of the postglacial drainage network.