AMS RADIOCARBON DATING AND ORGANIC RESIDUE (FTIR) ANALYSIS OF SAMPLES FROM SITE 14OT5-H2, OTTAWA COUNTY, KANSAS

Author(s): Linda Scott Cummings; Peter Kováčik

Year: 2013

Summary

A possible bison bone fragment was recovered from House 2 of the Minneapolis site, 14OT5, situated in Ottawa County, Kansas. An AMS radiocarbon date of 1070 ± 15 RCYBP had been obtained on ceramic residue from this site, but was not a credible age for this context. Therefore, a fragment from the long bone shaft was submitted for AMS radiocarbon dating to obtain a context date to corroborate or refute the residue date; however, no collagen was present. As a result, charred residue from a ceramic fragment was selected as an alternative for AMS radiocarbon dating. The expected age for the bone was between 650–700 RCYBP. Organic residue analysis using Fourier Transform Infrared Spectroscopy (FTIR) also was performed on the bone fragment to better understand the signature of deteriorated bone that does not retain collagen. In addition, FTIR analysis was conducted on the ceramic fragment from which the visible residue was recovered for AMS dating.

Cite this Record

AMS RADIOCARBON DATING AND ORGANIC RESIDUE (FTIR) ANALYSIS OF SAMPLES FROM SITE 14OT5-H2, OTTAWA COUNTY, KANSAS. Linda Scott Cummings, Peter Kováčik. PRI Technical Report ,2013-076. 2013 ( tDAR id: 394013) ; doi:10.6067/XCV851405J

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