The african origin of complex projectile technology: an analysis using tip cross-sectional area and perimeter.
The african origin of complex projectile technology: an analysis using tip cross-sectional area and perimeter.
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DOI：
10.4061/2011/968012
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Shea JJ
中科院分区：
文献类型：
--
作者：
Sisk ML;Shea JJ
尽管大量文献集中于现代和风格独特的抛射点的功能性，但相对较少关注量化抛射物使用的早期阶段的功能性。以前的工作确定了一种简单的弹道测量方法，即尖端横截面面积，作为确定给定类别的石点是否可以用作有效的弹丸骨架的一种方法。在这里，我们将它与另一种测量方法--尖端横截面周长结合使用，它是穿透目标到致命深度所需的力的更准确的替代。目前的研究讨论了这一测量方法，并用它来分析非洲中石器时代尖石文物的测量集合。在以前的研究中被拒绝的几种点类型与使用这种新测量的人种学投射点在统计上是无法区分的。讨论了这一发现对中石器时代复杂射弹技术起源的影响。
Despite a body of literature focusing on the functionality of modern and stylistically distinct projectile points, comparatively little attention has been paid to quantifying the functionality of the early stages of projectile use. Previous work identified a simple ballistics measure, the Tip Cross-Sectional Area, as a way of determining if a given class of stone points could have served as effective projectile armatures. Here we use this in combination with an alternate measure, the Tip Cross-Sectional Perimeter, a more accurate proxy of the force needed to penetrate a target to a lethal depth. The current study discusses this measure and uses it to analyze a collection of measurements from African Middle Stone Age pointed stone artifacts. Several point types that were rejected in previous studies are statistically indistinguishable from ethnographic projectile points using this new measure. The ramifications of this finding for a Middle Stone Age origin of complex projectile technology is discussed.