Use-wear/residue analysis of small flakes and stemmed tools made of obsidian and quartz, from middle and late Holocene archaeological sites in Melanesia, indicates their use in piercing and cutting soft skin. This skin-working activity was possibly associated with occasional manufacture of items from animal skins but it is more likely these tools were used for tattooing, scarification or medical treatment of the human body. Tattooing by cutting and piercing and scarification are an integral aspect of social behaviour among peoples in the Pacific region. I argue that the practice of tattooing by cutting and piercing were both used in Melanesia in the middle Holocene, but tattooing by piercing became more common in the late Holocene.
Keywords: Melanesia, West New Britain, Vanuatu, use-wear/residue analysis, stemmed tools, flakes, obsidian, quartz
Much of the archaeological record in Melanesia consists of simple stone flakes with few recognisable types of retouched tools. This record restricts the use of some methodological approaches in the identification and explanation of prehistoric tool use strategies and their association with people's daily activities, subsistence strategies and settlement history. In contrast, microscopic examination of wear patterns and residues on tools and the experimental replication of tool function initiated by Kamminga (1982), Fullagar (1986) and Loy (Loy 1983, 1993, Loy et al. 1992) in the Pacific region have provided important insights into the function of stone artefacts. Further significant contributions have been made by integrated studies of prehistoric tools combining replication experiments with low and high powered microscopic analysis of wear and residues. (e.g. Barton and Fullagar 2006; Fullagar 1992, 1993a, 1993b, 1994, 1998, 2006; Fullagar et al. 1998, 2006; Haslam and Liston 2008; Kealhofer et al. 1999).
Ethnographic and linguistic accounts demonstrate that tattooing and scarification are widespread and socially important in the Pacific and that obsidian tools were used in these activities (e.g. Ambrose 2012; Barton 1918; Buckiand 1888; Krieger 1932; Parkinson  1999:48-50; Pawley 2007; Specht 1981). Therefore it is important to actually date the origin of this social activity. The earliest indirect evidence of possible tattooing in the archaeological record of the Pacific comes from decoration on Lapita pottery sherds. Kirch (1997:142-143) proposed that both body tattooing and pottery making were brought to Melanesia by Austronesian speakers and that methods similar to those used in tattooing were employed to create dentate-stamped Lapita pottery. The finds of decorated stylised human faces on ceramic vessels and figurine fragments depicting the face with pricked (or pierced) markings on the nose, cheeks and forehead (Green 2002; Kirch 1997:141-143; Summerhayes 1998; Torrence & White, 2001) are considered as a link between Southeast Asian and Pacific populations (Kirch 1997:143-144). …