Bipolar Reduction Experiments and the Examination of Middle Archaic Bipolar Technologies in West-Central Illinois
Bipolar Reduction Experiments and the Examination of Middle Archaic Bipolar Technologies in West-Central Illinois
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DOI：
10.2190/na.31.1.d
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发表时间：
2010-01
影响因子：
0.3
通讯作者：
A. Bradbury
中科院分区：
文献类型：
--
作者：
A. Bradbury
双极还原长期以来被认为是从核生产薄片的一种方法。双极碎片的识别对评估双极还原在碎石技术组织中的作用具有影响。以前的工作表明，双极材料的分类可能是困难的。据报道，一系列的实验减少，协助识别双极材料从考古遗址。有人建议，双极技术更容易识别在组装水平比在单个薄片水平。实验结果适用于回收的材料，从一个中晚期的组件在11MG423摩根县，伊利诺伊州，并表明该网站相当大的双极产业。对该地区其他中世纪遗址的研究表明，尽管该地区中世纪时期双极技术的背景是复杂的，但双极工业在一些遗址上都有代表。
Bipolar reduction has been long recognized as a means of producing flakes from cores. The identification of bipolar debris has implications for assessing the role of bipolar reduction in the organization of lithic technology. Previous work has indicated that the classification of bipolar materials can be difficult. A series of experimental reductions are reported that assist in recognizing bipolar materials from archaeological sites. It is suggested that bipolar technologies are more easily identified at the assemblage level than at the individual flake level. The experimental results are applied to materials recovered from a late Middle Archaic component at 11MG423 in Morgan County, Illinois and indicate a considerable bipolar industry for that site. An examination of other Middle Archaic sites in the region indicates that bipolar industries are represented at a number of sites, though the context of bipolar technology during the Middle Archaic in the region is complex.