Abstract
Sihó is a Prehispanic archaeological site located in the Northern Maya Lowlands at Yucatan Peninsula, where have been documented a considerable number of percussion and/or abrasive tools made from limestone cobbles. These artifacts have certain physical and chemical characteristics which may be symptomatic of a particular geological origin. The statistical treatment of data extracted by X-ray fluorescence gives us the possibility of discerning limestone materials from different geological formations, based on their proportion of silicon (Si), calcium (Ca) or iron (Fe). Together with a comparative calculation between sphericity indexes of this round cobbles, suggest it catchment at Ticul fault colluvial secondary geological deposits twenty km from the site.
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