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Canada / MB / FbMi-5 (Swan River) / S-1952
- Lab number
- S-1952
- Field number
- CMC-1172
- Material dated
- charcoal; charbon de bois
- Locality
- at the toe of the Upper Campbell beach, 350-358 m asl, Swan River valley, Lake Winnipegosis drainage, Manitoba
- Map sheet
- 63 C/03
- Submitter
- P. Badertscher
- Date submitted
- March 30, 0097
- Measured Age
- 1670 ± 70
- Normalized Age
- 1670 ± 70
- δ13C (per mil)
- -24.9
- Significance
- culture?
- Context
- basal peat overlying clay zone, Unit 30n2w, 62 cm depth
- Comments
- FbMi-5, Swan River or Swamp: Underlying parent material is composed of Lake Agassiz (Upper Campbell beach) sands and clays, the upper portion bearing evidence of gleying. The site is an early prehistoric campsite with side-notched projectile points resembling those found in Iowa in the Logan Creek Complex. Comment (W. Blake, Jr.): Although dates on material from Lake Agassiz beach were far younger than expected (cf. Elson, 1967) agreement between collagen fraction of butchered bone and organic sediment at same depth is striking. Recovery of collagen by a procedure using SrCO3, giving a result of 2270 +/- 130 years (GSC-1219-2), is reported in Lowdon et al. (1971: 258-259). Colwill (1973) considered the dates to be appropriate for the site. New excavations by Badertscher (1980) resulted in four dates from the Saskatchewan laboratory.