Obsidians sources used by prehistoric people in the Omolon River basin and neighbouring areas of north-eastern Siberia were determined for 112 artefacts from 30 sites by the energy-dispersive X-ray fluorescence (ED-XRF) method. The main suppliers were the primary obsidian sources in both the Chukotka (Lake Krasnoe) and Kamchatka (Itkavayam, Payalpan and KAM-8) regions, with distances from sources to sites up to about 300–900 km in a straight line. For the first time, the transport of obsidian from Kamchatkan sources has been detected outside of this territory. The mechanism of obsidian transport was most probably by down-the-line movement, especially in the case of the Lake Krasnoe source.

中文翻译：

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从奥莫隆河流域和邻近地区（西伯利亚东北部）采购黑曜石工艺品：从堪察加和楚科奇的史前采购

通过能量色散 X 射线荧光 (ED-XRF) 方法确定了来自 30 个地点的 112 件文物的史前人类在奥莫隆河流域和西伯利亚东北部邻近地区使用的黑曜石来源。主要供应商是楚科奇（克拉斯诺湖）和堪察加（Itkavayam、Payalpan 和 KAM-8）地区的主要黑曜石来源，从来源到地点的直线距离可达约 300-900 公里。首次在该领土之外发现了来自堪察加半岛的黑曜石运输。黑曜石运输的机制很可能是通过线下运动，特别是在克拉斯诺湖源的情况下。