Laura LIEN

Title

Integrating FTIR analysis in residue analysis

Summary

This PhD thesis explores the potential of Fourier Transform Infrared Spectroscopy (FTIR) in advancing residue analysis on Paleolithic stone tools, offering insights into functional analysis that complement traditional morphological, technological and use-wear studies. By refining FTIR techniques, this project aims to develop a robust methodology for residue identification, seeking to address issues such as contamination and post-depositional alteration, among other challenges. This research will focus on adhesive residues preserved on lithic assemblages from Europe and Africa as well as experimental materials, applying FTIR to reconstruct tool use, identify patterns in residue presence, composition and degradation, and investigate variations in resource exploitation and regional technologies. Comparative analyses with conventional techniques, such as optical microscopy, scanning electron microscopy (SEM) and gas chromatography mass spectrometry (GC/MS), will assess the effectiveness of FTIR in detecting organic and inorganic deposits and engender new standards for the application of FTIR in the interpretation of ancient residues. The outcomes will contribute to methodological advancements in archaeological science, enhancing interpretations of Paleolithic materials, informing conservation practices, and broadening the applicability of FTIR in residue studies.