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Lab number
GSC-3055
Field number
BS-79-134
Material dated
whale bone collagen; collagène osseux de baleine
Taxa dated
cf. Balaena mysticetus rib (1025 g, id. by C.R. Harington)
Locality
southwest side of Rosse Bay, Ellesmere Island, Nunavut
Map sheet
39 E/11
Submitter
W. Blake, Jr.
Date submitted
February 20, 0098
Normalized Age
6920 ± 90
δ13C (per mil)
-18.7
Significance
palaeobiology; paléobiologie
Context
beach gravel and sand on top of a moraine ridge, 54 m asl
Associated taxa
Mammalia: cf. Balaena mysticetus
Comments
SdFi-VP, Rosse Bay: A section of the rib dated by GSC-3055 was subjected to exhaustive testing by the Isotrace laboratory, producing an AMS date (TO-33). Another section of the rib was used to test the effect of latex mold facing material used to make casts of bones. The result, GSC-3055-2, shows that the latex significantly reduced both the age (2570 +/- 220 BP) and the 13C ratio (-25.4) of this sample.

References