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- Lab number
- RIDDL-229
- Material dated
- mammoth? bone collagen; collagène osseux de mammouth
- Taxa dated
- Mammuthus? sp. tusk (MjVi-4: 37)
- Locality
- left bank of Porcupine River, 305 m asl, just upstream from the outlet of Cadzow Lake, northern Yukon Territory
- Map sheet
- 116 O/10
- Submitter
- R.E. Morlan
- Date submitted
- April 28, 0097
- Normalized Age
- 24700 ± 250
- δ13C (per mil)
- -20.0
- Significance
- geochronology, palaeobiology; géochronologie, paléobiologie
- Context
- 50 cm below the base of upper glaciolacustrine unit, in fine brown loess
- Associated taxa
- Mammalia: Mammuthus? sp
- Additional information
- AMS date. Collagen extraction method 1.
- Comments
- MjVi-4, Cadzow Bluff: Two dates on a proboscidean tusk are important for providing the youngest ages yet obtained for sediments below the glaciolacustrine clay that infilled the Bluefish and Old Crow basins in late Wisconsinan time.