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Canada / AB / EjPb-? (Winter) / AECV-632C
- Lab number
- AECV-632C
- Material dated
- carbonaceous sediment; sédiment charbonneux
- Locality
- 33 km northeast of Drumheller, Hand Hills, Red Deer drainage, Alberta
- Map sheet
- 82 P/09
- Submitter
- J.A. Burns
- Date submitted
- October 28, 0098
- Normalized Age
- 22710 ± 480
- Significance
- palaeobiology; paléobiologie
- Context
- a shear plane 50 cm below the surface of a gravel pit
- Additional information
- treated with HCl to remove old carbonates, but NaOH leach omitted.
- Comments
- EjPb-VP, K&T gravel pit: Burns (p.c. 1999) notes that AECV-654C should have given an older age than AECV-632C, but the former date is slightly younger. Furthermore the exact origin of the carbonaceous material sampled from the shear planes is not known. The two dates from this site are "in the right ball park but should be considered very cautiously."