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Robinson D.,University of Central Lancashire | Baker M.J.,University of Strathclyde | Bedford C.,University of Central Lancashire | Perry J.,California State University, Channel Islands | And 6 more authors.
Digital Applications in Archaeology and Cultural Heritage | Year: 2015

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© to enhance their visibility; they can use digital imagery to disentangle complex superimposed paintings; and they can use portable laser instruments to analyse the micro-topography of the rock surface and integrate these technologies into a 3-D environment. This paper outlines a robust methodology and preliminary results to show how an integration of different portable technologies can serve rock art research and management. © 2015 Elsevier Ltd. All rights reserved.

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