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The decline of the Tiwanaku state saw the emergence of two new cultures—Pica‐Tarapacá and Atacama—during the Late Intermediate Period in northern Chile. Archeological evidence suggests that both groups practised maize agriculture and pastoralism, but that their interaction zones differed significantly. Marine resources are common at Pica‐Tarapacá sites, even those far from coast, while Atacama sites...
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