Abstract
AbstractI report the results of characterisation analysis of obsidian from Pamwak shelter on Manus in the Admiralty Islands (Papua New Guinea). Evidence is presented that the first transport of obsidian to the shelter occurred in the terminal Pleistocene, probably from an offshore source. A mid Holocene change to the use of predominantly Pam Islands obsidian is noted. The use of significant amounts of Lou obsidian, a material widely used and traded after 3500 BP, is identified as occurring only late in the sequence. The implications of these changes in the context of Wal Ambrose's research are discussed.
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