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Western University

Stable isotopes

Physical Sciences and Mathematics

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Full-Text Articles in Anthropology

Early Horizon Camelid Management Practices In The Nepeña Valley, North-Central Coast Of Peru, Paul Szpak, David Chicone, Jean-François Millaire, Christine D. White, Rebecca Parry, Fred Longstaffe Jan 2016

Early Horizon Camelid Management Practices In The Nepeña Valley, North-Central Coast Of Peru, Paul Szpak, David Chicone, Jean-François Millaire, Christine D. White, Rebecca Parry, Fred Longstaffe

Earth Sciences Publications

South American camelids (llamas and alpacas) were of great economic, social and ritual significance in the pre-Hispanic Andes. Although these animals are largely limited to high-altitude (>3500 masl) pastures, it has been hypothesised that camelids were also raised at lower altitudes in the arid coastal river valleys. Previous isotopic studies of Early Intermediate Period (c. 200 BC - AD 600) and Middle Horizon (c. AD 600 - 1100) camelids support this argument. Here, we utilise carbon and nitrogen isotopic analyses of camelid bone collagen from the Early Horizon (c. 800 - 200 BC) sites of Caylán and Huambacho on …


Identification Of Ancient Maya Agriculture In The Periphery Of Motul De San José, Alexandra E. Smofsky Aug 2015

Identification Of Ancient Maya Agriculture In The Periphery Of Motul De San José, Alexandra E. Smofsky

Electronic Thesis and Dissertation Repository

Agricultural systems were investigated in the Motul de San José periphery, an ancient Maya polity in Guatemala, using soil geochemical techniques. The δ13C values of soil organic matter delineated areas of ancient maize agriculture at the satellite center of Kante’t’u’ul. A new method to locate areas of former cacao cultivation or processing was developed using HPLC to detect theobromine, an alkaloid of the cacao plant, preserved in soils. Extraction of spiked soils revealed that theobromine adsorption is inversely correlated with organic matter content of soils. Detection of naturally occurring theobromine was successful, demonstrating its utility as a tracer. …