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Arqueoastronomy and built landscape: the spatial orientation of geometric enclosures in Western Amazonia

Author(s): Antonia Barbosa

Year: 2016

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Summary

Geometric enclosures found over a 400 sq. km area in Western Amazonia were built in patterned ways that involved depth, width, and morphology of monumental ditches excavated in a clay soil matrix. Pattern eventually included care for solar orientation. A study of 419 geometric enclosures showed that around 60% of them were clearly oriented according to the sun’s trajectory and its maximum distance from the Ecuador, e.g. the solstice. One of the working hypotheses is that the agricultural calendar guided yearly festivities, therefore the geometric enclosures were mostly used for ritual activities. This research shows new interpretive possibilities for the study of such sites which functionality remains not completely understood.


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Arqueoastronomy and built landscape: the spatial orientation of geometric enclosures in Western Amazonia. Antonia Barbosa. Presented at The 81st Annual Meeting of the Society for American Archaeology, Orlando, Florida. 2016 ( tDAR id: 403251)


Keywords

Geographic Keywords
South America


Spatial Coverage

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

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