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- Lab number
- AECV-599C
- Material dated
- caribou bone collagen; collagène osseux de caribou
- Taxa dated
- Rangifer sp. antler
- Locality
- Villeneuve, northwest of Edmonton, North Saskatchewan River, Alberta
- Map sheet
- 83 H/12
- Submitter
- J.A. Burns
- Date submitted
- September 23, 0098
- Normalized Age
- 27730 ± 1060
- Significance
- palaeobiology; paléobiologie
- Context
- gravel pit
- Associated taxa
- Mammalia: Rangifer sp
- Comments
- Consolidated Pit 46: Like Pit 45, the valley fill consists mainly of fluvial sands and gravels dominated by quartzite and chert, with no clasts derived from the Canadian Shield. Also like Pit 45, several planar unconformities extend laterally, and they are commonly hosts to ice-wedge pseudomorphs that reflect periods of stability and weathering in a cold climate. The ice wedge casts average 85 cm in width and 1.5 m in height, suggesting 500-1000 year periods of development without flooding (Young et al., 1994: 685). The ice wedges were thawed, not by climate warming, but by new cycles of flooding and renewed deposition of sediments. Caribou, cervid, and mammoth remains recovered from the sands and gravels are dated to the mid-Wisconsinan interstadial. Only after that period did Laurentide ice extend westward to cover this site with a layer of till containing rocks from the Canadian Shield (Young et al., 1994: 685).