Rock temperatures as an indicator of weathering processes affecting rock art
作者： Stéphane Hœrlé
DOI: 10.1002/ESP.1329
关键词:
摘要: To aid rock art conservation, temperatures have been monitored at different depths and low (30 min) high (1 acquisition rates in a painted shelter the uKhahlamba-Drakensberg Park (South Africa). Preliminary data for winter (cold dry) show that season cryoclasty is unlikely to occur (rare subzero thermal events probable reduced moisture availability) shocks are improbable (highest measured ΔT/Δt < 2 °C min−1). High amplitude (about 30 °C) temperature cycles accompanied by reversals of gradient observed almost daily hint possibility stress fatigue. Copyright © 2006 John Wiley & Sons, Ltd.
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