ABSTRACT Located in the Salton Basin of Imperial County in southeastern Alta California, Obsidian Butte was the major prehistoric obsidian toolstone source in southern Alta California and northern Baja California and is frequently referenced in the archaeological literature. Reported in detail geoarchaeologically by Richard Hughes in the 1980s, the study herein considerably amplifies his research in that it focuses on the natural (geological) and cultural (archaeological) history of this source and its impact on the prehistory and archaeological interpretations of the region. A thorough in-field examination of the source and analysis of over 500 obsidian artifacts from San Diego County and western Imperial County archaeological contexts enlarges the database of artifacts assigned to that source, as well as providing recent geochronological data in support of the cultural history. This study can be seen as a companion to the recent work on sources of archaeological obsidian in northern Baja California by Panich et al. (2012, 2015, 2017).

中文翻译：

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Obsidian Butte Source 的自然和文化历史，加利福尼亚州帝国县

摘要 Obsidian Butte 位于阿尔塔加利福尼亚州东南部帝国县的索尔顿盆地，是阿尔塔加利福尼亚州南部和下加利福尼亚州北部的主要史前黑曜石工具石来源，在考古文献中经常被引用。理查德·休斯 (Richard Hughes) 在 1980 年代详细报告了地质考古学，此处的研究极大地扩展了他的研究，因为它侧重于该来源的自然（地质）和文化（考古）历史及其对该地区的史前和考古解释的影响。对来自圣地亚哥县和西帝国县考古环境的 500 多件黑曜石文物的来源和分析进行了彻底的现场检查，扩大了分配给该来源的文物的数据库，以及提供最近的地质年代数据以支持文化历史。这项研究可以看作是 Panich 等人最近对下加利福尼亚州北部考古黑曜石来源的研究的补充。（2012 年、2015 年、2017 年）。