%ABarberena, Ramiro [Instituto de Ciencias Básicas, CONICET, Laboratorio de Paleocología Humana, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo Mendoza Argentina]%AFernández, María [Instituto de Investigaciones en Diversidad Cultural y Procesos de Cambio, CONICET, Universidad Nacional de Río Negro, San Carlos de Bariloche Argentina]%ARughini, Agustina [Facultad de Filosofía y Letras, Universidad de Buenos Aires Ciudad Autónoma de Buenos Aires Argentina]%ABorrazzo, Karen [Instituto Multidisciplinario de Historia y Ciencias Humanas, CONICET, Universidad de Buenos Aires Ciudad Autónoma de Buenos Aires Argentina]%AGarvey, Raven [Department of Anthropology University of Michigan Ann Arbor Michigan]%ALucero, Gustavo [Instituto de Ciencias Básicas, Laboratorio de Paleocología Humana, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo Mendoza Argentina]%ADella Negra, Claudia [Dirección General de Patrimonio Cultural, Subsecretaría de Cultura Provincia del Neuquén Argentina]%AVillanueva, Guadalupe [Instituto Nacional de Antropología y Pensamiento Latinoamericano, CONICET Ciudad Autónoma de Buenos Aires Argentina]%ADurán, Víctor [Instituto de Ciencias Básicas, CONICET, Laboratorio de Paleocología Humana, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo Mendoza Argentina]%ACortegoso, Valeria [Instituto de Ciencias Básicas, CONICET, Laboratorio de Paleocología Humana, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Cuyo Mendoza Argentina]%AGiesso, Martín [Department of Anthropology Northeastern Illinois University Chicago Illinois]%AKlesner, Catherine [Department of Materials Sciences and Engineering University of Arizona Tucson Arizona]%AMacDonald, Brandi [Archaeometry Laboratory, University of Missouri Research Reactor Center Columbia Missouri]%AGlascock, Michael [Archaeometry Laboratory, University of Missouri Research Reactor Center Columbia Missouri]%BJournal Name: Geoarchaeology; Journal Volume: 34; Journal Issue: 1; Related Information: CHORUS Timestamp: 2023-09-15 11:56:54 %D2018%IWiley Blackwell (John Wiley & Sons) %JJournal Name: Geoarchaeology; Journal Volume: 34; Journal Issue: 1; Related Information: CHORUS Timestamp: 2023-09-15 11:56:54 %K %MOSTI ID: 10079777 %PMedium: X %TDeconstructing a complex obsidian “source‐scape”: A geoarchaeological and geochemical approach in northwestern Patagonia %XAbstract

Northwestern Patagonia is located in a tectonically active part of the southern Andes (Argentina), which has facilitated the formation of obsidian, including pyroclastic deposits that have been affected by geomorphic processes, resulting in a complex obsidian landscape. To date, the geomorphic relocation of obsidian in the landscape has not been a focus of systematic research, and this hampers our understanding of prehistoric human mobility. We present an updated assessment of the regional availability of different obsidian types based on results from our research program, which combines geoarchaeological survey and geochemical characterization to understand the properties and distribution of obsidian. This robust “source‐scape” provides the foundation for reconstructing patterns of lithic provisioning and discard. Our results suggest that interpretations of obsidian availability across the landscape should be more nuanced than is typically acknowledged. Based on our improved “source‐scape,” we discuss the patterns observed in an archaeological X‐ray fluorescence database. When compared with the geoarchaeological reconstruction of obsidian availability, the archaeological record conforms to a distance‐decay pattern. Contrary to previous interpretations, we suggest that the distribution of obsidian types is not isomorphic with human home ranges. This geoarchaeological research program provides a basis for integrating the archaeological record of different Andean regions.

%0Journal Article