Collaborative Research: The Extension of a Dendrochronological Sequence to northern Mexico
合作研究:树木年代序列向墨西哥北部的延伸
基本信息
- 批准号:1755507
- 负责人:
- 金额:$ 13.29万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2018
- 资助国家:美国
- 起止时间:2018-05-01 至 2023-04-30
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Drs. Paula Turkon, Sturt Manning, and Carol Griggs, along with colleagues from Mexico, will conduct research to provide a high-resolution absolute tree-ring chronology for Northern Mesoamerican archaeological sites using a combination of tree-ring and AMS radiocarbon data. This project extends their preliminary research both geographically and chronologically, with the goal of linking the existing Epiclassic chronology from Northwestern Mesoamerica that ends in the 8th century A.D., to the regionally extensive, calendar-dated chronologies from living and relic trees in the same region. The dendrochronological results will offer dating precision to archaeologists working in these regions for time periods that do not have written sources of chronological data. It will also establish the foundation for climate reconstruction studies that, in the future, will help clarify the long-term relationships between the magnitude of climatic change and human response. In fostering close collaboration between archaeologists, dendrochronologists, graduate, and undergraduate students from multiple institutions throughout Mexico and the United States, this project's mission is to encourage the application of dendroarchaeology [=archaeological dendrochronology], currently not part of archaeological fieldwork or analysis in Mexico. Mesoamerican archaeologists have long acknowledged the need for precise dating methods in order to understand cultural change, particularly in the region north of the core of Mesoamerican culture. Yet despite tremendous success in the development of tree-ring dating of archaeological sites just north in the American Southwest, and the more recent development of long tree-ring chronologies in Mexico that cover the past 1300 years, dendroarchaeology has been virtually absent in Mesoamerica. The first stage of this NSF funded project demonstrated the availability, measurability, and similarities in growth patterns ("crossdatability") of archaeological tree-ring samples in Northwestern Mesoamerica from the 5th to 8th centuries A.D. In this second stage, the researchers will incorporate archaeological samples from Postclassic and historic sites located in a broader geographic region in northern Mesoamerica. Because the new archaeological collections of wood will likewise be from a time period for which there are no well-established master chronologies, the tree-ring sequences produced from the prehispanic sites will be initially anchored in time by "radiocarbon wiggle-matching." This method fits a known relative sequence of radiocarbon dates from specific tree-rings against the radiocarbon calibration curve to achieve a precise fit and thus calendar placement with minimal error. Ultimately, we intend to create a continuous tree-ring record from the present back to the Classic period, using both the archaeological and historic collections, as well as existing calendar-dated chronologies. The resulting data will not only fill a significant gap in our knowledge of the chronology of Northern Mesoamerica, but help address broader questions such as the rate, timing, and directionality of cultural influences with the Mesoamerican cultural core. Since dendroarchaeological methods are cumulative and iterative, the chronologies will gain in length, sample depth, and robustness, and will become increasingly useful to archaeologists working in broader geographic regions and time periods.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
Drs。Paula Turkon, Sturt Manning和Carol Griggs将与来自墨西哥的同事一起进行研究,利用树木年轮和AMS放射性碳数据的结合,为中美洲北部的考古遗址提供高分辨率的绝对树木年轮年表。这个项目扩展了他们在地理上和时间上的初步研究,目的是将中美洲西北部现存的公元8世纪结束的epic古典年表与同一地区的生活树和遗迹树的区域广泛的日历年表联系起来。树木年代学的结果将为在这些地区工作的考古学家提供精确的年代测定,因为这些地区没有书面的年代学资料。它还将为未来的气候重建研究奠定基础,这将有助于澄清气候变化幅度与人类反应之间的长期关系。为了促进来自墨西哥和美国多个机构的考古学家、树木年代学家、研究生和本科生之间的密切合作,这个项目的任务是鼓励树木年代学的应用,目前在墨西哥还不是考古野外工作或分析的一部分。中美洲考古学家早就认识到,为了了解文化变迁,特别是在中美洲文化核心以北的地区,需要精确的年代测定方法。然而,尽管在美国西南部北部的考古遗址的树木年轮测年方面取得了巨大的成功,并且最近在墨西哥发展了覆盖过去1300年的长树木年轮年表,但在中美洲,树木年轮考古学实际上是缺失的。这个由美国国家科学基金会资助的项目的第一阶段展示了公元5世纪至8世纪中美洲西北部考古树木年轮样本的可用性、可测量性和生长模式的相似性(“交叉数据性”)。在第二阶段,研究人员将纳入位于中美洲北部更广泛地理区域的后古典和历史遗址的考古样本。因为新的考古收集的木材同样来自一个没有成熟的主年表的时期,从前西班牙遗址产生的树木年轮序列将首先通过“放射性碳摆动匹配”来确定时间。该方法将已知的来自特定树木年轮的放射性碳日期的相对序列与放射性碳校准曲线拟合,以实现精确的拟合,从而以最小的误差放置日历。最终,我们打算利用考古和历史收藏品以及现有的日历年表,创建一个从现在到古典时期的连续的树木年轮记录。由此产生的数据不仅将填补我们对中美洲北部年代学知识的重大空白,而且有助于解决更广泛的问题,如中美洲文化核心文化影响的速度、时间和方向性。由于树木考古方法是累积和迭代的,年表将在长度、样本深度和稳稳性方面有所增加,并将对在更广泛的地理区域和时间段内工作的考古学家越来越有用。该奖项反映了美国国家科学基金会的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Sturt Manning其他文献
Sturt Manning的其他文献
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{{ truncateString('Sturt Manning', 18)}}的其他基金
Intra-Annual Radiocarbon (14C) Offsets, Chronology and Paleoclimate
年内放射性碳 (14C) 偏移、年代学和古气候
- 批准号:
2303502 - 财政年份:2023
- 资助金额:
$ 13.29万 - 项目类别:
Standard Grant
Doctoral Dissertation Research: Method to Determine the Geographic Distribution of Timber
博士论文研究:确定木材地理分布的方法
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2330049 - 财政年份:2023
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$ 13.29万 - 项目类别:
Standard Grant
Doctoral Dissertation Improvement Grant: Developing Approaches to Food Analysis
博士论文改进补助金:开发食品分析方法
- 批准号:
2032037 - 财政年份:2020
- 资助金额:
$ 13.29万 - 项目类别:
Standard Grant
Collaborative Research: Chronology of Epi-Classic Northwestern Mesoamerica
合作研究:中美洲西北部经典年代学
- 批准号:
1324061 - 财政年份:2013
- 资助金额:
$ 13.29万 - 项目类别:
Standard Grant
Checking and Correcting the Timescale for the Archaeology of the East Mediterranean-Near East in Later Prehistory & Protohistory: Investigating the Scale of a Radiocarbon Offse
东地中海-近东史前晚期考古年表的校对
- 批准号:
1219315 - 财政年份:2012
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$ 13.29万 - 项目类别:
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Collaborative Research: the Kalavasos and Maroni Built Environments Project. Investigating Social Transformation in Late Bronze Age Cyprus
合作研究:卡拉瓦索斯和马罗尼建筑环境项目。
- 批准号:
0917732 - 财政年份:2009
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$ 13.29万 - 项目类别:
Standard Grant
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