Mixture model of pottery decorations from Lake Chad Basin archaeological sites reveals ancient segregation patterns

Journal Article

We present a new statistical approach to analysing an extremely common archaeological data type—potsherds—that infers the structure of cultural relationships across a set of excavation units (EUs). This method, applied to data from a set of complex, culturally heterogeneous sites around the Mandara mountains in the Lake Chad Basin, helps elucidate cultural succession through the Neolithic and Iron Age. We show how the approach can be integrated with radiocarbon dates to provide detailed portraits of cultural dynamics and deposition patterns within single EUs. In this context, the analysis supports ancient cultural segregation analogous to historical ethnolinguistic patterning in the region. We conclude with a discussion of the many possible model extensions using other archaeological data types.

Full Text

Duke Authors

Cited Authors

  • O'Brien, JD; Lin, K; MacEachern, S

Published Date

  • 2016

Published In

  • Proceedings of the Royal Society of London B: Biological Sciences

Volume / Issue

  • 283 / 1827

PubMed ID

  • 27009217

Pubmed Central ID

  • PMC4822455

Digital Object Identifier (DOI)

  • 10.1098/rspb.2015.2824