IMHICIHU   13380
INSTITUTO MULTIDISCIPLINARIO DE HISTORIA Y CIENCIAS HUMANAS
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
The first use of portable Raman instrumentation for the analysis of Patagonian prehistoric rock art paintings: pigments, accretions and substrata
Autor/es:
ALDAZABAL, VERONICA; CRISTINA VÁZQUEZ; ROUSAKI, ANASTASIA; VANDENABEELE, PETER; MOENS, LUC;; CRISTINA BELLELLI(5), MARIANA CARBALLIDO CALATAYUD(5), ADAM HAJDUK(6), EMMANUEL VARGAS(7), OSCAR PALACIOS
Lugar:
Bilbao
Reunión:
Congreso; Technart 2017; 2017
Institución organizadora:
Universidad del pais vasco
Resumen:
Archaeometrical studies in Patagonia (Argentina)reveal useful information about the materials used by the population thatinhabited the area. The North Patagonian region was occupied by hunter-gathererpopulations since the transition between late Pleistocene-early Holocene (atleast 10.000 years B.P.) to the last century. When crossing the landscape fromWest to East, relatively low temperatures (in the Andesregion) are found, followed by the wet forest of the mountains, dry steppesand, finally moderate temperatures and humidity of the Atlantic coast. In Patagonianarchaeological sites lithic materials, pottery and faunal remains are commonlyfound, as well as paintings or engravings on rocks, leather or textiles. Rockart paintings are relatively common in the Patagonian scenery and thus theyplay an important role in understanding the population dynamics of localhunter-gatherer groups. [1]Portable Raman spectroscopy was applied for the firsttime on rock art paintings, from hunter-gatherer populations, on seventeensites, in two different environmental regions of Patagonia, the forest atNeuquén and Río Negro and the steppe at Chubut.The selected archaeological sites were examined, revealing the pigments usedfrom the native population. Alteration products and accretions were alsoinvestigated to obtain valuable information for a better conservation andpreservation of these magnificent works of art. During a single research campaignsixteen shelters and one cave were investigated which makes this study as oneof the most condensed expeditions on measuring rock art paintings. The current researchfocuses only on the pigments used, accretions and alteration products andsubstrata of the rock art paintings and serves as sequel of our previous studieson the evaluation of the use of our portable Raman instrumenton the analysis of rock art under extreme conditions in Patagonia, whereseveral improvements were proposed, to maximize the quality of the research[1].[1]A. Rousaki, C. Vázquez, V. Aldazábal , C. Bellelli, M. Carballido Calatayud, A.Hajduk, E. Vargas, O. Palacios,  P.Vandenabeele, L. Moens, Journal of Raman Spectroscopy, accepted.