Antonio Hernanz, José M. Gavira-Vallejo, Juan F. Ruiz-López, Santiago Martin, Ángel Maroto-Valiente, Rodrigo de Balbín-Behrmann, Mario Menéndez and Jose J. Alcolea-González Spectroscopy of Palaeolithic rock paintings from the Tito Bustillo and El Buxu Caves, Asturias, Spain Journal of Raman Spectroscopy 43
The composition of Palaeolithic rock paintings from the Tito Bustillo and El Buxu caves (30 000–10 000 bp, Asturias, Spain) have been characterised by Raman microscopy with auxiliary techniques (scanning electronic microscopy/energy dispersive X-ray, infrared, X-ray diffraction and X-ray photoelectron spectroscopy). A supposed source of pigment is discarded. Possible relationships among pictographs from both caves are established.
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