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Lab number
S-928
Field number
CMC- 708
Material dated
seal bone collagen; collagène osseux de phoque
Taxa dated
Phocidae
Locality
on an island 0.8 km southeast of Bon Accord, Cumberland Sound, Baffin Island, Nunavut
Map sheet
26 J/06
Submitter
P. Schledermann
Date submitted
August 25, 0097
Measured Age
930 ± 95
Normalized Age
1090 ± 95
δ13C (per mil)
-15.0
Significance
Neoeskimo, Modified Thule; Néoesquimau, Thuléen
Context
Test area 1, sq. 1D, 50-55 cm depth
Associated taxa
Mammalia: Phocidae
Comments
MbDj-1, Anarnitung: It contains 15 Thule winter houses, but the site is almost completely destroyed. Schledermann (1975: 85) was aware of the need to make a correction for the marine reservoir effect. He cited a study by McGhee and Tuck (1976), then in manuscript, which had explored a constant correction of -400 years but had concluded by ignoring all sea mammal dates. Schledermann considered both approaches to be extreme. By considering his radiocarbon dates in relation to stylistic traits on recovered harpoon heads, he elected to subtract 200 years from the uncorrected means of the dates. Had he first corrected his dates for isotopic fractionation, the -400 year correction would have yielded very similar results, within measurement error.

References