Combining chemical and lead isotope analyses with 3-D geometric–morphometric shape analysis: A methodological case study of socketed bronze arrowheads from the southern Levant

Naama Yahalom-Mack*, Gadi Herzlinger, Alexander Bogdanovsky, Ofir Tirosh, Yosef Garfinkel, Sean Dugaw, Oded Lipschits, Yigal Erel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

In this study, the shape of socketed bronze arrowheads is analysed and expressed as a series of mathematical trends which are then compared to chemical and lead isotope composition, as well as to the categorization of traditional non-computerized typology. It is shown that while traditional typology has statistical validation, additional important information can be gleaned from 3-D geometric morphometric shape analysis (3DGM), particularly when combined with material analyses. For example, arrowheads that are traditionally categorized as a single type demonstrate minute shape differences that correlate with the sites where they were found. This micro-variability, detected only through 3DGM, has potential cultural, chronological and regional implications. Most importantly, this pilot study shows that chemical and isotopic composition is correlated to a specific shape trend, revealed through computerized analysis, rather than to the traditional typological classification. This opens up new vistas for a more advanced analysis of archaeological finds.

Original languageAmerican English
Article number105147
JournalJournal of Archaeological Science
Volume118
DOIs
StatePublished - Jun 2020

Bibliographical note

Publisher Copyright:
© 2020

Keywords

  • Chemistry
  • Geometric morphometric shape analysis
  • LIA
  • Socketed bronze arrowheads
  • Statistics
  • Typology

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