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Canada / NU / MkPk-7 (Lapointe) / GX-1702
- Lab number
- GX-1702
- Field number
- CMC- 359
- Material dated
- caribou bone collagen; collagène osseux de caribou
- Taxa dated
- Rangifer tarandus long bone fragments (500 g)
- Locality
- on the eroding point of an 85 m terrace, 200 m west of Coppermine River, 2 km downstream from Bloody Falls, Northwest Territories
- Map sheet
- 86 O/14
- Submitter
- R. McGhee
- Date submitted
- August 26, 0097
- Measured Age
- 3140 ± 120
- Normalized Age
- 3220 ± 120
- δ13C (per mil)
- -20.0
- Significance
- Taltheilei; Taltheilei
- Context
- square E-10, 20-40 cm depth, thin band of organic-stained sand
- Associated taxa
- Mammalia: Rangifer tarandus, Castor canadensis, Spermophilus parryii (intrusive?); Aves (waterfowl); Beaver is represented only by a worked incisor that may have been carried northward as part of a tool kit.
- Additional information
- It is assumed that collagen was dated and that the date was not corrected previously for isotopic fractionation.
- Comments
- MkPk-7, Lapointe: This appeared to represent a single relatively heavy occupation by a band of caribou hunters. The small sample of artifacts includes four large lanceolate points. Although S-466 might have been contaminated, S-467 cannot have been and is definitely associated with the main occupation. In view of the scarcity of absolute dates on lanceolate points in this area, McGhee revised his estimate when submitting GX-1702 and considered the result to confirm the new estimate. Further excavation was undertaken by Morrison in 1979. He was able to isolate two components - the lanceolate point component distinguished by McGhee, and a deeper Pre-Dorset component that remains undated. This stratigraphic sequence supports McGhee's revised estimate and its Taltheilei affiliation, as suggested by B.C. Gordon.