ABSTRACT

The Pilauco site, in northwestern Chilean Patagonia, presents evidence of human occupation in South America ca. 16,500 cal yr BP. This article presents the techno-functional analysis of a unifacial artifact belonging to a 17,300 cal yr BP level, found in association with five other lithic pieces. Artifacts of this type have long been considered expedient rather than formal or curated pieces. These artifacts remain in the shadow of bifacial pieces, particularly so-called projectile points. The results of the techno-functional analysis made it possible to diagnose the unifacial artifact as a plano-convex volumetric structure with two parallel backs, on which two different tools were produced at different manufacturing stages via the technical operations of affordance, debitage, and shaping. The detailed description of this type of artifact is crucial for a more complete definition of the technical phenomena associated with the first occupations in South America.

摘要

位于智利巴塔哥尼亚西北部的皮劳科遗址提供了人类在南美洲占领的证据。16,500 卡/年 BP。本文介绍了对属于 17,300 cal yr BP 水平的单面人工制品的技术功能分析，该人工制品与其他五件石器相关联。这种类型的文物长期以来一直被认为是权宜之计，而不是正式的或精心策划的作品。这些人工制品保留在双面部件的阴影中，特别是所谓的抛射点。技术功能分析的结果使得可以将单面人工制品诊断为具有两个平行背面的平凸体积结构，在其上通过可供性、借记和成型的技术操作在不同的制造阶段生产两种不同的工具.