机译:Long-term in situ non-invasive spectroscopic monitoring of weathering processes in open-air prehistoric rock art sites
Univ Basque Country UPV EHU, Dept Analyt Chem, Fac Sci & Technol, POB 644, Bilbao 48080, Spain;
Long-term monitoring; Raman spectroscopy; Energy-dispersive X-ray fluorescence spectrometry; Chemometric analysis; Rock shelter Levantine art; Conservation;