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- Lab number
- GSC-1496-A
- Field number
- BS-70-55
- Material dated
- whale bone collagen; collagène osseux de baleine
- Taxa dated
- probably Balaena mysticetus mandible? (438.5 g)
- Locality
- Ellesmere Island, Nunavut
- Map sheet
- 49 B/05
- Submitter
- W. Blake, Jr
- Date submitted
- July 22, 0098
- Measured Age
- 8900 ± 170
- Normalized Age
- 9040 ± 170
- δ13C (per mil)
- -16.2
- Significance
- palaeobiology, anomalous, young; paléobiologie, anormal, jeune
- Context
- upper limit of a series of raised beaches, 118 m asl, embedded and frozen in place
- Associated taxa
- Mammalia: Balaena mysticetus?
- Additional information
- This sample was contaminated by air leaking due to a small explosion during burning.
- Comments
- RcHw-VP-1, Cape Storm: A whale bone, probably a mandible, was found imbedded and frozen in near the upper limit of a sequence of raised beaches 8.0 km north of Cape Storm, at an elevation of 118 m asl. A series of measurements under the laboratory number GSC-1496 employed different fractions of the bone prepared with various pre-treatment methods (see Lowdon and Blake, 1979: 42-43). An interlaboratory check was provided by the Uppsala laboratory (U-2510). Blake comments that the bone was not as well preserved as the whalebones at lower elevations on the beaches at Cape Storm, and most of the bone was characterized by a brownish stain. The outer parts of the bone were hard; the inner parts (softer and more porous) were removed in the field by an axe and, after the sample was air dried, by cutting with a band saw in the laboratory. Determination GSC-1496-3 has the smallest error term, and the age is identical to that of high level marine shells nearby. However, note that GSC-1496-4, the oldest determination in the GSC series, is closest to the age found by the Uppsala laboratory.