Weathering Processes on Sandstone Painting and Carving Surfaces at Prehistoric Rock Sites in Southern Spain

نویسندگان

چکیده

The sandstones which constitute the host rock for prehistoric artwork in Rock Groups of Tajo de las Figuras and Peñas Cabrera (southern Spain) show a serious degree alteration, due both to natural processes those related anthropogenic animal activity. A detailed study was carried out on petrological compositional characteristics (fresh altered rock) groups, geological climatological area they are located. have very similar areas. This likeness causes nature weathering be areas studied. These can divided terms predominant mechanisms alteration into three inter-related categories: mechanical weathering, chemical bio-induced processes. However, different climatic conditions two located directly influences intensity these precipitation range temperature variation with heavy winter frosts El significantly higher than Cabrera; this translates rate at Figuras. Regarding action, types influence deterioration distinguished: direct one, consists scouring wetting walls order increase chromatic contrast; an indirect is extraction blocks sandstone upper part shelters, turn encourages development

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ژورنال

عنوان ژورنال: Applied sciences

سال: 2022

ISSN: ['2076-3417']

DOI: https://doi.org/10.3390/app12115330