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Abstract Traditionally, studies of Palaeolithic cave art have largely ignored or directly overlooked the red marks of anthropogenic origin that do not belong to figurative categories, in spite of their importance in quantitative terms in this type of art. This paper highlights their importance for better understanding the significance of the cave remains commonly classified as "rock or cave art." To this end, we analysed these marks directly in a number of caves (Etxeberri -Pyrénées-Atlantiques, France-, Lumentxa -Bizkaia, Spain-, Morrón -Jaén, Spain- and Nerja -Málaga, Spain-). This allowed us to differentiate between intentional and other incidental or involuntary red marks. Furthermore, depending on the intrinsic and extrinsic characteristics of these marks, as well as information provided by archaeological and ethnographic findings, we related them to the body painting of their authors. Therefore, an identifiable part of the red marks so common in Palaeolithic cave art (and which could therefore not be considered as art sensu stricto) seems to be produced involuntarily. This could be related with the customs of the Palaeolithic groups attested by the archaeological record, as the frequentation of the innermost areas in the caves or as the decoration their bodies with ochre-based paint. Highlights • We considered all the wall remains in the caves as a whole, including non-figurative red marks. • We surveyed and recorded all these kinds of remains in four caves dating from the Upper Palaeolithic. • We concluded that some marks have a involuntary origin, associated the dragging of bodies against the surfaces where these marks were located. • We suggest that some of the red marks inside the caves could be caused by the body paint used by Palaeolithic people. [ABSTRACT FROM AUTHOR]

Abstract This paper sets out a methodology for calculating the potential zone of damage to which an Item of Cultural Interest (ICI) located in a karst environment is exposed. An itemised study of the geological characteristics of the cave environment is proposed: lithological cartography, endokarst and exokarst geomorphology and the study of fracturing of the limestone massif. Based on these data and using a Geographical Information System (GIS), it was possible to calculate the degree of the geological threats on a susceptibility map, according to the vulnerability of the heritage item to be protected and its exposure to the identified hazardous geological processes. By combining these parameters, the existing geological risk was calculated and mapped and the necessary protection area for conservation of the cultural heritage was defined. This methodology was applied in the Alkerdi caves located in the municipal area of Urdazubi/Urdax (Navarre, northern Spain). [ABSTRACT FROM AUTHOR]