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El estrés invernal como generador de áreas marginales en el extremo sur de Patagonia Continental durante el Holoceno tardío.

Author(s): Maria Cecilia Pallo

Journal: Comechingonia Virtual : Revista Electrónica de Arqueología
ISSN 1851-0027

Volume: 6;
Issue: 1;
Start page: 86;
Date: 2012;
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Keywords: Winter stress | Marginal areas | Hunter-gatherers | Intensity of human occupation.

Regionally, climate and environmental factors such as snow, altitude, rainfall, temperature and wind stress conditions allow winter result related to the temporary lack of space and resources for human use. This gives the possibility to recognize marginal areas of seasonal and other more annual availability spaces. On archaeological scale and of long-term these differences can be reflected in spatial discontinuities of the observable human signal. As an archaeological tool we use deposition rates lithic artifacts from sites corresponding to terrestrial hunter-gatherer populations of Late Holocene in southern of continental Patagonia and we evaluate their variations in relation to the current winter stress. This rigorous winter could be amplified in relation to extreme cold periods like the Little Ice Age (s. 1400 a s. 1800 AD/380 a 50 años cal BP). We believe that by this time the marginal areas with greater winter stress may have taken on greater significance in the ranges of action of the hunter-gatherer populations as part of a logistics system for use of space. We evaluate a particular case, the occupations in the locality Laguna Cóndor (province of Santa Cruz), as an example of this type.
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