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Diálogo andino

versión On-line ISSN 0719-2681

Resumen

CARPENTER SLAVENS, John  y  SANCHEZ, Guadalupe. ENVIRONMENTAL CHANGE IN THE MIDDLE HOLOCENE/LATE HOLOCENE IN THE SONORAN DESERT ANDITS IMPLICATIONS REGARDING THE DIVERSIFICATION OF UTO-AZTECAN AND THE DIFFUSION OF MAIZE. Diálogo Andino [online]. 2013, n.41, pp.199-210. ISSN 0719-2681.  http://dx.doi.org/10.4067/S0719-26812013000100013.

In this paper we present a model to explain the initial bifurcation of the linguistic uto-aztecanfamily, its subsequent diversification of the sonoran/southern branch and the initial diffusion of maize to northwest mexico and the southwest of the u.s. the middle holocene (also known as the altithermal) is aproximately dated to the years between 7500 and 4500 before the present (55002500 bce). This period is characterized by adverse climactic conditions during which time the sonoran desert remained almost abandoned. We sugest that these uto-aztecan groups were the first northerners to obtain maize (via west mexico). Additionally, we propose that these groups ofproto-sonoran-uto-aztecan speakers left their altithermal refuge, located in thefoothill/mountain zone of northeastern sinaloa, southeastern sonora and southwestern chihuahua and recolonized the sonoran desert.

Palabras clave : diffusion of maize; uto-aztecan; altithermal.

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