The material evidence of human presence in the Chontales region of central Nicaragua spans from 1420 ± 30 BP, or cal AD 554–670 (±2σ) through to the present, as was recently established (Donner and Geurds 2018). This cultural chronology, divided into three main periods, contrasts with the one previously proposed by (Gorin 1990), who defined six different phases from 500 BC through AD 1600. Here, we report on 11 new radiocarbon (14C) assays, introducing an update to the cultural sequence, consisting of two considerable changes, while also providing further overall strengthening. First, the earliest traces of human groups are now placed at 1645 ± 25 BP, or cal AD 263–536 (±2σ); second, five different periods are established for the research area. A recalibration of Gorin’s dates identified their consistency with the results reported here, supporting the new cultural chronology of central Nicaragua. Additionally, this study achieved the complete temporal characterization of Aguas Buenas, the largest pre-colonial archaeological site in Nicaragua.

中文翻译：

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THE VALLEY OF JUIGALPA, MAYALES RIVER SUBBASIN MICROREGION (CHONTALES, NICARAGUA) 日期列表 II

尼加拉瓜中部 Chontales 地区人类存在的物质证据从 1420 ± 30 BP，或 cal AD 554-670 (±2σ) 到现在，正如最近确定的那样（Donner 和 Geurds 2018）。这种文化年表分为三个主要时期，与 (Gorin 1990) 先前提出的时期形成对比，后者定义了从公元前 500 年到公元 1600 年的六个不同阶段。在这里，我们报告了 11 种新的放射性碳 (14C) 分析，对文化序列进行了更新，包括两个相当大的变化，同时还提供了进一步的整体加强。首先，人类群体的最早痕迹现在位于 1645 ± 25 BP，或 cal AD 263–536 (±2σ)；其次，为研究领域确定了五个不同的时期。对戈林日期的重新校准确定了它们与此处报告的结果的一致性，从而支持了尼加拉瓜中部的新文化年表。此外，这项研究还实现了尼加拉瓜最大的前殖民考古遗址 Aguas Buenas 的完整时间特征。