What question did this study set out to answer?

To analyze organic residues from a distinctive feature at site 34CM24/25 in Oklahoma using FTIR technology.

March 7, 2026Open Access

Ftir Analysis of Organic Residues for a Feature at 34cm24/25, Oklahoma

Key Points

To analyze organic residues from a distinctive feature at site 34CM24/25 in Oklahoma using FTIR technology.
Sample collection from feature XU4-01, including burned earth, ash, and artifacts.
Radiocarbon dating of bison bone to establish age of materials.
Fourier Transform Infrared (FTIR) analysis to identify organic residues.
Radiocarbon dating indicated a timeframe of AD 1500-1650 for the bison bone.
The dark sediment analyzed was greasy to the touch, confirming its distinct characteristics.
Organic residues identified through FTIR provide insight into material usage at the site.

Abstract

Site 34CM24/25 is located in Comanche County, OK, on the east side of East Cache Creek, within Training Area 79 of Fort Sill’s East Range. Cultural materials at the site were recovered from two distinct geomorphic deposits. Radiocarbon dated bison bone produced calibrated date ranges of AD 1500-1650. Feature XU4-01 consisted of burned earth, ash, and chipped stone and bone artifacts within a sediment that appeared to be darker than the surrounding matrix. The matrix excavated from this feature was subsequently floated. Due to the fact that the sediment was described as darker than the surrounding sediment and was greasy to the touch, a sample (Sample 2) was submitted for organic residue analysis using Fourier Transform Infrared (FTIR) technology.

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Cite This Study

Linda Scott Cummings (Fri,) studied this question.

synapsesocial.com/papers/69abc2455af8044f7a4ebbac https://doi.org/https://doi.org/10.48512/xcv8520075

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