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Canada / BC / EcRi-1 (Drynoch Slide) / I-462
- Lab number
- I-462
- Material dated
- wood; bois
- Locality
- Thompson River valley, Fraser drainage, British Columbia
- Map sheet
- 92 I/06
- Date submitted
- March 18, 0098
- Date uploaded
- February 14, 2020
- Normalized Age
- 3175 ± 150
- δ13C (per mil)
- -25.0
- Significance
- geoarchaeology; géoarchéologie
- Context
- failure zone beneath mud slide overlying Mazama tephra, portion of tree trunk beneath slide and covering vegetation in situ
- Comments
- EcRi-1, Drynoch Slide: Cultural material in windblown sand resting directly on coarse gravel, presumably dates from an aggrading period of the Thompson River. A diagnostic feature of the cultural deposit is the presence of a microblade. GSC-530 consisted of a composite of numerous small pieces of charcoal scattered throughout a midden of fish remains and artifacts below Mazama ash. I-462 dates an extensive mud slide above Mazama tephra, and GSC-2056 dates a hearth feature within the head of the scarp that was utilized when the slide was relatively stable.