This paper provides new petrochemical and paleomagnetic data from obsidian sub-sources on the island of Pantelleria, exploited since the Neolithic. Data has been obtained from 14 obsidian samples from 4 locations: Fossa della Pernice (2 sites), Salto la Vecchia and Balata dei Turchi . Here, we aim to better characterize these obsidians using a cross-disciplinary and multi-analytical approach, to further understand their archaeological significance. Major element analyses (EMP) have enabled two compositional super-groups to be distinguished: (i) Fossa della Pernice , less peralkaline and (ii) Balata dei Turchi–Salto la Vecchia, distinctly more peralkaline and having almost identical chemical patterns. Trace element analyses (LA-ICP-MS) corroborate major element groupings, with the Balata dei Turchi–Salto la Vecchia super-group being further characterized by a pronounced negative europium anomaly. Glass H 2 O contents (FT-IR) reveal an overlap among all the sub-sources (H 2 O = 0.1–0.3 wt. %). Magnetic methods have refined the petrochemical groupings, permitting further distinction between Balata dei Turchi–Salto La Vecchia and the Fossa della Pernice super-groups. The occurrence of sub-microscopic (< 1 μm) ferromagnetic minerals results in different magnetic susceptibility and Natural Remanent Magnetization values and allows the best distinction among the products from the chosen sites. When compared with obsidian tools excavated from Bronze-age settlements on the island of Ustica (230 km NE of Pantelleria), 12% are distinctly peralkaline, indicating their provenance to be from the Balata dei Turchi sub-source.

中文翻译：

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Pantelleria（西西里岛海峡）的黑曜石：已知和新地质来源的岩石学，地球化学和磁学研究

本文提供了从新石器时代以来一直利用的Pantelleria岛上黑曜石子源的新石油化学和古磁数据。数据来自4个地点的14个黑曜石样本：Fossa della Pernice（2个地点），Salto la Vecchia和Balata dei Turchi。在这里，我们旨在使用跨学科和多分析的方法来更好地表征这些黑曜石，以进一步了解它们的考古学意义。主要元素分析（EMP）已使两个成分超群得以区分：（i）珀尔尼采（Fossa della Pernice），较少的碱性碱和（ii）Balata dei Turchi–Salto la Vecchia，明显较多的碱性和具有几乎相同的化学模式。痕量元素分析（LA-ICP-MS）证实了主要元素分组，Balata dei Turchi–Salto la Vecchia超级集团的特征还在于明显的负negative异常。玻璃中的H 2 O含量（FT-IR）显示所有子源之间存在重叠（H 2 O = 0.1–0.3 wt。％）。磁性方法完善了石油化学分组，从而进一步区分了Balata dei Turchi–Salto La Vecchia和Fossa della Pernice超群。亚微观（<1μm）铁磁性矿物的出现导致不同的磁化率和自然剩磁值，并允许在选定位置的产品之间进行最佳区分。与从乌斯蒂卡岛（潘泰莱里亚东北230公里）的青铜时代定居点发掘的黑曜石工具相比，有12％的是明显的碱性，表明它们的出处是Balata dei Turchi子源。