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Open Obsidian Geochemistry Visualization system for the Andes

Author(s): Nicholas Tripcevich ; Lisa Trever ; Chris J. Kennedy ; Eric Kansa ; Michael D. Glascock

Year: 2017

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Obsidian sourcing studies which provide valuable insights into archaeological mobility and interaction are enhanced by the availability of geochemical analyzers, and especially by the proliferation of portable X-ray fluorescence units. This year we are introducing an open source system for analysis of geochemical datasets available in web-based repository and based on R-Shiny, a browser based analysis and visualization system built on the R project. The Andean Geochemistry data archive, a new project hosted at OpenContext, combined with the R-shiny based analysis system, allows researchers to explore geochemical data interactively. We have uploaded a number of geochemical data sets from the Andes to demonstrate the effectiveness of this approach when many datasets are available in a given area and to encourage more researchers to share their data in an open framework. While there remain obstacles to productive comparison of geochemical data in a given region, including problems with inter-instrumental comparability in particular, this system provides an architecture for sharing and visualizing these data in an open format to foster greater comparison between projects going forward.

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Open Obsidian Geochemistry Visualization system for the Andes. Nicholas Tripcevich, Lisa Trever, Chris J. Kennedy, Eric Kansa, Michael D. Glascock. Presented at The 81st Annual Meeting of the Society for American Archaeology, Vancouver, British Columbia. 2017 ( tDAR id: 430355)


Geographic Keywords
South America

Spatial Coverage

min long: -93.691; min lat: -56.945 ; max long: -31.113; max lat: 18.48 ;

Record Identifiers

Abstract Id(s): 15553

Arizona State University The Andrew W. Mellon Foundation National Science Foundation National Endowment for the Humanities Society for American Archaeology Archaeological Institute of America