Northern and Central Plains obsidian artifacts curated by the Smithsonian Institution’s National Museum of Natural History have received little attention by researchers working to understand the nature of long-distance trade, exchange, and interaction. We present the results of a chemical analysis of obsidian stone tools and debitage from these collections. Significant differences in patterns of obsidian use exist between the Northern and Central Plains. Shifts in obsidian use through time within the Central Plains may indicate larger socioeconomic shifts, while obsidian from Northern Plains assemblages suggests an antiquity to interaction networks at least as old as the first Plains Village sites in the region. By creating the first multi-regional obsidian database encompassing parts of the Northern and Central Plains, we expect that the data and our interpretations enhance discussions at the intersection of trade, exchange, and inter-group interaction in the Northern as well as Central Plains.

中文翻译：

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东部平原的多区域黑曜石数据库

史密森学会国家自然历史博物馆策划的北部和中原黑曜石文物很少受到致力于了解长途贸易、交流和互动性质的研究人员的关注。我们展示了对黑曜石石器的化学分析结果以及这些藏品中的借方。北部和中部平原的黑曜石使用模式存在显着差异。随着时间的推移，中原地区黑曜石使用的变化可能表明更大的社会经济变化，而来自北部平原组合的黑曜石表明互动网络至少与该地区第一个平原村遗址一样古老。通过创建第一个涵盖北部和中原部分地区的多区域黑曜石数据库，