¿Por qué nuestros ancestros colocaban una roca sobre otra roca y la golpeaban con una tercera? Una aproximación experimental a la utilización de la técnica bipolar / Why our ancestors place a rock on another rock and hit it with a third one? an experimental approach to the use of bipolar technique

Pablo Parodi Cárdenas, Ximena Navarro Harris

Resumen


La talla bipolar es una técnica de reducción lítica con una larga trayectoria en el tiempo. Los productos bipolares hallados en el registro arqueológico han sido explicados bajo un clásico cuerpo interpretativo, pero las razones por las cuales los seres humanos optaron por esta estrategia continúan sin ser determinadas. Este estudio, consiste en un experimento de eficiencia que tiene como objetivo determinar las variables que influyen en la selección de la talla bipolar. Este fue realizado en pequeños guijarros de basalto (n=100) y participaron tres talladores con distinta experiencia utilizando la técnica bipolar y a mano alzada. Los resultados sugieren que la técnica bipolar es poco controlable y que el tiempo no sería un factor determinante a la hora de su uso. Sin embargo, se sostiene que la experiencia puede mejorar la eficiencia productiva en pequeños guijarros si se combinan ambas técnicas.

Palabras Clave: Arqueología Experimental; Eficiencia; Talla bipolar; Talla a mano alzada; Basalto.

Abstract

Bipolar knapping it´s a lithic reduction technique with a long trajectory in time. Bipolar knapping product´s found in the archaeological record have been explained under a classic interpretative frame, but the reasons for which humans chose this strategy are still not determined until this very day. This study consists of an experiment of efficiency whose objective is to determine the variables which influenced people into choosing bipolar technique. This experiment was executed on small basalt pebbles (n=100) with the participation of three lithic knappers with different levels of experience using both bipolar and freehand knapping. The results suggest that bipolar knapping is not very manageable and that time wouldn´t be very important factor in the choosing of this technique. Nonetheless, it is noted that experience can improve the productive efficiency when applied to small pebbles if both techniques are combined.

Keywords: Experimental Archaeology; Efficiency; Bipolar knapping; Freehand knapping; Basalt


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Referencias


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Boletín de Arqueología Experimental


ISSN electrónico: 2530-3554 

ISSN impreso: 1138-9354