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Canada / NU / SgFm-3 (Longhouse) / BM-1754R
- Lab number
- BM-1754R
- Material dated
- walrus bone collagen; collagène osseux de morse
- Taxa dated
- Odobenus rosmarus
- Locality
- on Knud Peninsula, Ellesmere Island, Nunavut
- Map sheet
- 39 G/01
- Submitter
- A.J. Sutcliffe
- Date submitted
- October 10, 0097
- Normalized Age
- 1150 ± 100
- δ13C (per mil)
- -17.8
- Significance
- palaeobiology; paléobiologie
- Context
- surface, Knud Peninsula, beside Dorset long house, 8-9 m asl
- Associated taxa
- Mammalia: Odobenus rosmarus
- Additional information
- Originally calculated as 1135 +/- 40 BP and later revised.
- Comments
- SgFm-3, Longhouse: A series of joined cooking features, often in rows 30-40 m in length, was located near extensive communal dwellings on the site. The contemporaneity of several hearths was tested by dating samples of charred willow wood, omitting spruce wood and charred bone (GSC-2757, GSC-2834, GSC-3141). Two bone samples were sent to the Geochron lab. A separate component on this site is termed the "Early Dorset Ridge" and is dated by a sample of charred bone (GSC-3262). The bone is presumed to represent sea mammals, but the 13C ratio is unusual for any kind of bone and is far-removed from the ratio for sea mammal bones. BM-1754 is a surface find dated to establish the rate of weathering in the Arctic environment.