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Lab number
Tx-7817
Material dated
Sediment
Taxa dated
Soil humate
Type of date
Geological
Locality
Frontier
Submitter
William C. Johnson
Date submitted
December 20, 1992
Date uploaded
November 11, 2021
Updater
Wyoming Team
Date updated
December 31, 2020
Measured Age
38580 ± 1240
Normalized Age
38628 ± 1240
δ13C (per mil)
-22.0
Context
1848-1858 cmbs, in a backhoe trench excavated in a SW-facing cut along the ash pit haul road, ca. 829.1 m amsl
Additional information
Radiometric

References