Nineteen obsidian artifacts from surface contexts of probable Dismal River complex sites in the Sand Hills of Nebraska were analyzed via energy dispersive X-ray fluorescence (EDXRF) spectrometry. The artifacts derive from six distinct geological volcanic glass sources. One of the artifacts was made from ash-flow tuff obsidian of the Brown’s Bench chemical type and another from Wild Horse Canyon, Utah obsidian, representing the first documented use of these western source materials in Nebraska. Southwestern obsidian sources are less well represented than those to the west of Nebraska in this study sample, indicating that more than one pattern of obsidian use and conveyance may have existed during the Dismal River complex.

中文翻译：

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调查内布拉斯加州中部的 Dismal River 黑曜石使用情况

通过能量色散 X 射线荧光 (EDXRF) 光谱法分析了来自内布拉斯加州沙丘中可能的 Dismal River 复杂遗址的表面环境的 19 件黑曜石文物。这些文物来自六个不同的地质火山玻璃来源。其中一件文物是由 Brown's Bench 化学类型的灰流凝灰岩黑曜石制成的，另一件来自犹他州 Wild Horse Canyon 的黑曜石，代表了这些西方来源材料在内布拉斯加州的首次使用记录。在本研究样本中，西南黑曜石来源的代表性不如内布拉斯加州西部的那些，这表明在 Dismal River 综合体中可能存在不止一种黑曜石使用和运输模式。