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RESOLVING TIME AMONG NON-STRATIFIED SHORT-DURATION CONTEXTS ON A RADIOCARBON PLATEAU: POSSIBILITIES AND CHALLENGES FROM THE AD 1480–1630 EXAMPLE AND NORTHEASTERN NORTH AMERICA
Radiocarbon ( IF 2.0 ) Pub Date : 2020-07-13 , DOI: 10.1017/rdc.2020.51
Sturt W Manning , Jennifer Birch , Megan Anne Conger , Samantha Sanft

Reversals and plateaus in the radiocarbon (14C) calibration curve lead to similar 14C ages applying to a wide range of calendar dates, creating imprecision, ambiguity, and challenges for archaeological dating. Even with Bayesian chronological modeling, such periods remain a problem when no known order—e.g., a stratigraphic sequence—exists, and especially if site durations are relatively short. Using the reversal/plateau AD 1480–1630 and the archaeology of northeastern North America as our example, we consider possible strategies to improve chronological resolution across such reversal/plateau periods in the absence of stratigraphic sequences, including uses of wood-charcoal TPQs from even very short wiggle-matches, and site phase duration constraints based on ethnohistoric and archaeological evidence.

中文翻译:

解决放射性碳高原非分层短期环境中的时间问题:公元 1480-1630 年示例和北美东北部的可能性和挑战

放射性碳的逆转和高原(14C) 校准曲线导致相似14C 年龄适用于广泛的日历日期,给考古测年带来不精确、模棱两可和挑战。即使使用贝叶斯年代模型,当不存在已知顺序(例如地层序列)时,尤其是在站点持续时间相对较短的情况下,此类时期仍然是一个问题。以公元 1480-1630 年的反转/高原和北美东北部的考古学为例,我们考虑了在没有地层序列的情况下提高这种反转/高原时期的时间分辨率的可能策略,包括使用木炭 TPQs非常短的摆动匹配,以及基于民族历史和考古证据的场地阶段持续时间限制。
更新日期:2020-07-13
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