Biologia campbell 7ma edicion pdf5/31/2023 On the other hand, the coast, compared to the valley and cordillera, has been the most active area for archaeological research and dating since the 1990s. After this latter date, a regional incremental trend is evident, along with the earliest presence of ceramics, as well as evidence of probable horticultural practices. For this latter area, it is possible to posit the existence of an occupation hiatus extending from at least around 3400 cal BP to around 2350 cal BP. From the early peopling up to the Late Archaic, information is geographically and chronologically scarce and scattered, the exception being the coast. This information is used to assess both the paleodemography, understood as human population dynamics in the past and the "archaeo-demography", understood as the research dynamics of archaeologists in the present, of that region. A chronological database of 398 dates (247 14 C dates, 148 thermoluminescence dates, and 3 obsidian hydration dates), covering the early peopling period up to the present, is presented for Southern Chile.
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