Methodological considerations of integrating portable digital technologies in the analysis and management of complex superimposed Californian pictographs : from spectroscopy and spectral imaging to 3-D scanning

Robinson, David and Baker, Matthew J. and Bedford, Clare and Perry, Jennifer and Wienhold, Michelle and Bernard, Julienne and Reeves, Dan and Kotoula, Eleni and Gandy, Devlin and Miles, James (2015) Methodological considerations of integrating portable digital technologies in the analysis and management of complex superimposed Californian pictographs : from spectroscopy and spectral imaging to 3-D scanning. Digital Applications in Archaeology and Cultural Heritage. ISSN 2212-0548

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Abstract

How can the utilization of newly developed advanced portable technologies give us greater understandings of the most complex of prehistoric rock art? This is the questions driving The Gordian Knot project analysing the polychrome Californian site known as Pleito. New small transportable devices allow detailed on-site analyses of rock art. These non-destructive portable technologies can use X-ray and Raman technology to determine the chemical elements used to make the pigment that makes the painting; they can use imaging techniques such as Highlight Reflective Transformation Imaging and dStretch <sup>