RESUMENEl norte de la provincia de Neuquén (Depto. Pehuenches, Argentina) es muy poco conocido a nivel arqueológico, a pesar de estar ubicado en una posición central en relación con distintos temas clave del poblamiento humano de Sudamérica, incluyendo la extinción de la megafauna y sus causas, el poblamiento humano inicial y la existencia de discontinuidades arqueológicas en el Holoceno medio. En este trabajo se presenta el primer cuerpo de resultados paleoecológicos y arqueológicos para el sitio Cueva Huenul 1, recientemente excavado, que ofrece una secuencia sedimentaria que se extiende durante los últimos 16.000 años calendáricos. Estas evidencias incluyen el desarrollo de un marco crono-estratigráfico para el sitio, que aporta novedosa información tefro-cronológica. A partir de este análisis, se definen cuatro componentes temporales, sobre los cuales se asienta el estudio de los materiales recuperados: evidencias faunísticas (paleontológicas y arqueológicas), arqueobotánicas, líticas, cerámicas y de arte rupestre. Estos resultados en escala de sitio proveen una primera instancia de evaluación de procesos en escala macro-regional, así como las bases para la continuación de este proyecto.PALABRAS CLAVE: Neuquén, fauna extinta, poblamiento humano temprano, cronología, tendencias temporales. ARCHAEOLOGICAL PERSPECTIVES FOR NORTHERN PATAGONIA:CUEVA HUENUL 1 SITE (NEUQUEN PROVINCE, ARGENTINA) ABSTRACT Northern Neuquén Province (Pehuenches Dept., Argentina) is barely known from an archaeological 138 R. BARBERENA et al. perspective, though it is centrally placed in terms of several large-scale key issues in the peopling of South America: the extinction of the megafauna and its causes, early human presence, and the existence of archaeological discontinuities during the Mid-Holocene. In this paper we present the first body of paleoecological and archaeological data for Cueva Huenul 1 site, recently excavated, which offers a sedimentary sequence extending during the last of 16.000 calendar years. Initially, we present a chronostratigraphic frame for the site, including new tephro-chronological information. On this basis, four temporal components are defined, providing the historical scheme for the analysis of the recovered evidences that include: archaeofaunas (paleontological and archaeological), archaeobotany, lithic and ceramic technology, and rockart. These results at a site scale provide a first approach to a discussion of macro-regional processes, as well as the basis for the continuation of our research.KEY WORDS: Neuquén, extinct fauna, early human peopling, chronology, temporal tendencies. INTRODUCCIÓN Y ANTECEDENTESEste trabajo se enmarca en un proyecto arqueológico recientemente iniciado en el extremo noroeste de Patagonia (Departamento Pehuenches, provincia del Neuquén, Argentina; Fig. 1; Barberena, 2013). Básicamente la región carece de información arqueológica, lo que ofrece tanto una limitación como un desafío para el desarrollo de este proyecto. En esta instancia inicial de acercamiento a la arqueol...

We reconstruct the Holocene vegetation, climate, and archaeological history for drylands of northwestern Patagonia, Argentina, based on multiproxy analysis (plant macrofossil, pollen, and parasites) of rodent middens integrated with a database of 14 C dates associated with human occupations. The local scale corresponds to the Huenul paleoecological and archaeological locality, emplaced in north-western Patagonia (Neuquén Province, Argentina). The rodent midden record 22 from the Huenul series reflects subtle vegetation changes driven by climatic variability at millennial timescale. Drier than present environmental conditions prevailed during the early Holocene (10,500-9400 cal yr BP), peaking during the mid-Holocene (9200-5500 cal yr BP), when wetter than present conditions established during the late Holocene (4400-2500 cal yr BP). These environmental and climatic dynamics agree with other paleoclimatic records from northern Patagonia, suggesting the winter precipitation dynamics related to the Southern Westerlies as a common driver. The diachronic distribution of anthropogenic radiocarbon dates from the western area of the South American Arid Diagonal between 32°-40°S conforms to a fitted exponential model of steady background population growth, not suggesting significant demographic changes that may have been the result of the impact of climate change. This record indicates that these human populations coped successfully with aridity, particularly during the mid-Holocene. These findings reinforce the need to integrate multi-scalar interdisciplinary analyses to assess the impact of climate change in human societies.

We present isotopic and morphometric evidence suggesting the migration of farmers in the southern Andes in the period AD 1270–1420, leading up to the Inka conquest occurring ~ AD 1400. This is based on the interdisciplinary study of human remains from archaeological cemeteries in the Andean Uspallata Valley (Argentina), located in the southern frontier of the Inka Empire. The studied samples span AD 800–1500, encompassing the highly dynamic Late Intermediate Period and culminating with the imperial expansion. Our research combines a macro-regional study of human paleomobility and migration based on a new strontium isoscape across the Andes that allows identifying locals and migrants, a geometric morphometric analysis of cranio-facial morphology suggesting separate ancestral lineages, and a paleodietary reconstruction based on stable isotopes showing that the migrants had diets exceptionally high in C4 plants and largely based on maize agriculture. Significantly, this migration influx occurred during a period of regional demographic increase and would have been part of a widespread period of change in settlement patterns and population movements that preceded the Inka expansion. These processes increased local social diversity and may have been subsequently utilized by the Inka to channel interaction with the local societies.