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Socioeconomic roles of Holocene marine shell beads reveal the daily life of composite objects from East Kalimantan, Borneo
Journal article   Open access   Peer reviewed

Socioeconomic roles of Holocene marine shell beads reveal the daily life of composite objects from East Kalimantan, Borneo

Tim Ryan Maloney, India Ella Dilkes-Hall, Adhi Oktaviana, Etha Sriputri, Falentinus Triwijaya Atmoko, Marlon Ririmasse, Muslimin Effendy, Pindi Setiawan, Jillian Huntley, Brandi L. MacDonald, …
Journal of archaeological science, Vol.158, 105840
10/2023
DOI: https://doi.org/10.1016/j.jas.2023.105840
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Published (Version of record)CC BY-NC-ND V4.0,  Open Access
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Abstract

Holocene Archaeology Marine shell beads Ornaments
Cultural objects composed of composite materials with differing physical properties are often differentially preserved in archaeological records favouring those materials less susceptible to taphonomic processes. Using microscopically observed wear patterns to decipher a model of socioeconomic roles for composite beaded objects, this study examines the rich marine shell bead assemblage excavated from Liang Jon in East Kalimantan, Borneo. Assessment of this 16,700-year sequence provides a unique context for discussing collection, transport, manufacture, and use of marine shell beads; spanning the biogeographical change associated with sea level rise 11,700 years ago creating the island of Borneo. Quantifying differences in bead wear patterning and distribution has revealed changes across 11,000 years of human occupation—detail seldom exposed in Island South East Asian archaeology. Results demonstrate marine species belonging to the families Nassariidae and Cypraeidae were targeted for the manufacture of beads. Whole shells and removed dorsa indicate some onsite manufacture occurred, while patterns of wear and residues including pigments, suggest most beads originated from different varieties of composite objects brought to the site and maintained in different contexts of daily life. Our model reveals a novel picture of Holocene social complexity broadly associated with dated rock art, providing a unique link between parts of the rich archaeological record at the Liang Jon, circumventing popular modes of ethnographic analogy less appropriate for this region.

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