Advances in rapid condition assessments of rock art sites: Rock Art Stability Index (RASI)

Abstract

The Rock Art Stability Index (RASI) is a rapid, quantitative approach to rock art condition assessment. Research carried out at Petrified Forest National Park, USA, demonstrates that, following a 2-day training session, site evaluators obtained replicable results, facilitating a condition assessment of over 3500 engraved panels.Two electron microscopy case studies allowed us to identify the specific rock decay processes and major causes of destruction on panels that were RASI-scored as in high threat, suggesting potential avenues for future conservation interventions. This approach illustrates a holistic strategy for rock art conservation.