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Keywords:

  • Papua New Guinea;
  • Sepik coast;
  • Fergusson Island Obsidian;
  • PXRF

Abstract

During PXRF analysis of obsidian recovered from sites on the Sepik coast of northern Papua New Guinea, seven pieces were identified exhibiting a chemical signature inconsistent with sources in the Bismarck Archipelago previously identified on the coast. Comparative chemical analysis of obsidian from sources in the western Pacific confirms that these pieces originated on western Fergusson Island in the D'Entrecasteaux group. Our results represent the first identification of this source material on the north side of the New Guinea mainland beyond the Massim region.