Skip to main content

Oxygen isotopes in cellulose identify source water for archaeological maize in the American Southwest

Citation

Williams, David G, Coltrain, Joan B, Lott, Mike, English, Nathan B, and Ehleringer, James R, Oxygen isotopes in cellulose identify source water for archaeological maize in the American Southwest: .

Summary

Maize (Zea mays) was a primary food crop for aboriginal societies of the arid American Southwest. Water used for maize production in these arid zones could have come from precipitation and runoff during the summer monsoon, from perennial streams and springs, or from stored soil water fed by snowmelt. The oxygen stable isotope ratio (?18O) of summer and winter precipitation on the Colorado Plateau naturally differ by more than 10? providing a powerful tool for distinguishing winter- from summer-derived water sources used in cultivation of maize. We investigated whether variation in ?18O of potential source waters is preserved in the ?18O of cellulose (?18Ocellulose) of maize cobs by growing four aboriginal and one modern maize variety [...]

Contacts

Attached Files

Communities

  • Upper Colorado River Basin

Tags

Provenance

From Source - Mendeley RIS Export <br> On - Wed Sep 19 08:08:31 MDT 2012

Additional Information

Identifiers

Type Scheme Key
Title Citation Oxygen isotopes in cellulose identify source water for archaeological maize in the American Southwest

Citation Extension

citationTypeMendeley
noteNotes
tableOfContentsTable of Contents

Item Actions

View Item as ...

Save Item as ...

View Item...