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United States / CO / La Plata County / 5LP2029 / Beta-175857
- Lab number
- Beta-175857
- Material dated
- Charcoal
- Type of date
- Archaeological
- Locality
- La Plata
- Date uploaded
- January 15, 2024
- Updater
- Wyoming team
- Date updated
- December 31, 2020
- Normalized Age
- 1730 ± 70
- δ13C (per mil)
- -25.0
- Stratigraphic component
- 40 cm bmgs
- Context
- Feature 3 roasting pit. Top of feature was ca. 40 cm bmgs. Meas 1.15 x 1.0 m in dia., 1.35 m deep. 14C sample is from the base of the pit. There was an associated pile of burned refuse rock imediately to the E. Pit was originally excavated to a depth of 1.45 m; straight sided. Bottom contained burned rocks. The pit was partially cleaned out and a second pit was excavated into the fill of the 1st. The latter meas. 95 cm in dia., 85 cm deep. Lower fill of the later pit contained 1 mano and 1 mano frag. Fill from the earlier pit contained a flake, 1 mano, and 1 GS frag. Interpreted as a pit reused after a period of abandonment when it partially filled with sediment. Interpreted as BM II on basis of 14C date, although old wood may be a problem. Zea mays pollen found in the pit, but it is not clear whether it is from the earlier or later use.
- Additional information
- radiometric