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Combining analytical chemistry and traceology: An innovative approach applied to Mesoamerican mirrors found at the Sojo site (Costa Rica)

Artículo científico
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Date
2021
Author
Ménager, Matthieu
Melgar Tísoc, Emiliano Ricardo
Cavallini Morales, Carolina
Sibaja Conejo, Paula
Salgado Gonzalez, Silvia
Barboza Gutierrez, Nataly
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Abstract
An innovative approach based on the combination of spectroscopy and traceology was used in order to analyse iron ore mirrors excavated at the Sojo site (Chibcha area, present-day Costa Rica) in the northern Pacific region of Costa Rica (AD 300 to AD 500–600). Such mirrors were prestigious artefacts related to power, shamanism and divination during the Classic Period in the Maya area. Stone bases, adhesives and tesserae were characterised using FT-IR, SEM/EDX and Raman Spectroscopy, as well as X-Ray Fluorescence (XRF) and the techniques used in their manufacture were elucidated using traceology. Similar materials were found to have been used for all the bases, tesserae, adhesives and coatings of the different mirrors. Furthermore, two tessera-shaped fragments were most probably part of a composite mirror, manufactured by sticking hematite nodules onto stone tesserae using a clay mixed with an organic binder. Chert and obsidian tools were used to make, respectively, perforations and edges on all mirror bases, and the two main types of abrasion of the base surfaces were found to have been made with basalt or limestone. These analyses indicate a probable Maya origin as their manufacturing traces distin- guish them from Teotihuacan mirrors.
URI
http://hdl.handle.net/10669/82756
External link to the item
10.1016/j.jas.2020.105302
http://www.sciencedirect.com/science/article/pii/S0305440320302235
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  • Repositorios universitarios

  • Repositorio del SIBDI-UCR
  • Biblioteca Digital del CIICLA
  • Repositorio Documental Rafael Obregón Loría (CIHAC)
  • Biblioteca Digital Carlos Melendez (CIHAC)
  • Repositorio de Fotografías
  • Colección de videos de UPA-VAS
  • Sitios recomendados

  • Buscador regional de LA Referencia
  • Buscador del Open ROAR
  • Scientific Electronic Library Online (SciELO)
  • Directory of Open Access Journals (DOAJ)
  • Redalyc
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Contact Us | Send Feedback
Repositorio Institucional de la Universidad de Costa Rica. Algunos derechos reservados. Este repositorio funciona con DSpace.
Universidad de Costa Rica