Collaborative Research: Assessing the Impact of Holocene Climate Change on Bioavailable Strontium Isotope Ratios

合作研究：评估全新世气候变化对生物可利用的锶同位素比率的影响

• 批准号: 1916719
• 负责人: Michele Buzon
• 金额: $ 6.08万
• 依托单位: Purdue University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-07-01 至 2023-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1916719&HistoricalAwards=false
• 关键词: Collaborative; Research; Assessing; Impact; Holocene

Dr. Antonio Simonetti, of the University of Notre Dame, along with Dr. Michele Buzon, of Purdue University, will investigate the impact of climate change on the isotopic signature of bioavailable strontium during the last ~4,000 years within the Nile River Valley. This project builds on previous research collaborations by both principal investigators that have established immigration patterns and cultural interactions in ancient civilizations for Egyptian and Nubian sites within the Nile River Valley based primarily on strontium isotope signatures of archaeological faunal (soil, animal, plant) and human samples. The results from this first time, detailed investigation will accurately trace any temporal change in the regional distribution of bioavailable strontium driven by a drying climate within the Nile River Valley. This approach will prove extremely useful for other regions around the globe where recent climatic conditions have changed significantly during the archaeological period of interest. Strontium isotopes in soil and living and fossil materials vary on a regional basis and using isotope ratios scientists can trace how individual during their lifetimes moved between regions. This project will provide insight into whether environmental factors can change ratios in a single area. This project will include training of graduate students in state-of-the-art isotope techniques, and they will also be directly involved in analyzing and interpreting results. This study will include participation of the American Sudanese Archaeological Research Center (AmSARC), which has a mission to encourage American and Sudanese archaeological research and collaboration in Sudan.Drs. Simonetti and Buzon will expand coverage of samples investigated by determining the strontium, lead, and neodymium isotope signatures of faunal, soil, plant and human samples from combined 20 sites along the Nile River occupied over various time periods, and compare these results to those from their present-day counterparts. Samples will also be obtained from collections of pertinent museums worldwide. Assessing the bioavailable strontium for the Nile River Valley will also rely on synthesizing existing strontium isotope data obtained by both PIs from ~250 specimens, which consist of both archaeological human and faunal samples investigated from Egyptian (Memphis, Qurneh) and Nubian (Shellal, C-Group, Pharaonic, Amara West, Tombos, Kerma) sites. These combined results will help to characterize the isotope variability and better understand human mobility in this region, which is rich with sociopolitical transitions and contact between groups. The results obtained from this project will help elucidate any input or influence of Holocene climate change within the Nile River Valley for the past ~4,000 years. By comparing archaeological or paleo-strontium isotope signatures of faunal samples to their present-day counterparts, our study will provide a better understanding of aeolian (wind-driven) contribution, if any, within the Nile River Valley. The proposed research will have major implications for archaeologists conducting isotope-based investigations of ancient migrations around the globe since climate change is a phenomenon that has occurred throughout Earth's history. For the Nile River Valley, this has involved a drying of the African Humid Period, which have taken place in other regions of our planet.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.

圣母大学的 Antonio Simonetti 博士和普渡大学的 Michele Buzon 博士将研究过去约 4,000 年来气候变化对尼罗河谷内生物可利用的锶同位素特征的影响。该项目建立在两位主要研究人员之前的研究合作基础上，这些研究合作主要基于考古动物（土壤、动物、植物）和人类的锶同位素特征，确定了尼罗河谷内埃及和努比亚遗址古代文明的移民模式和文化互动。样品。首次详细调查的结果将准确追踪由尼罗河流域干燥气候驱动的生物可利用锶区域分布的任何时间变化。这种方法对于全球其他地区来说非常有用，这些地区在感兴趣的考古时期最近的气候条件发生了显着变化。土壤以及活体和化石材料中的锶同位素因地区而异，利用同位素比率，科学家可以追踪个体在其一生中如何在地区之间移动。该项目将深入了解环境因素是否会改变单个区域的比率。该项目将包括对研究生进行最先进的同位素技术培训，他们还将直接参与分析和解释结果。这项研究将包括美国苏丹考古研究中心 (AmSARC) 的参与，该中心的使命是鼓励美国和苏丹在苏丹进行考古研究和合作。 Simonetti 和 Buzon 将通过确定不同时期尼罗河沿岸 20 个地点的动物、土壤、植物和人类样本的锶、铅和钕同位素特征来扩大调查样本的覆盖范围，并将这些结果与来自不同时期的结果进行比较他们现在的同行。样品也将从世界各地相关博物馆的收藏中获得。评估尼罗河流域的生物可利用锶还将依赖于综合两位 PI 从约 250 个样本中获得的现有锶同位素数据，这些样本包括从埃及（孟菲斯、库尔内）和努比亚（Shellal、C）调查的考古人类和动物样本。 -Group、Pharaonic、Amara West、Tombos、Kerma）站点。这些综合结果将有助于表征同位素变异性，并更好地了解该地区的人类流动性，该地区充满社会政治转型和群体之间的接触。该项目获得的结果将有助于阐明过去约 4,000 年来尼罗河流域全新世气候变化的输入或影响。通过将动物样本的考古或古锶同位素特征与当今的对应物进行比较，我们的研究将更好地了解尼罗河流域内的风作用（风驱动）贡献（如果有的话）。由于气候变化是地球历史上一直发生的一种现象，这项拟议的研究将对考古学家对全球古代迁徙进行基于同位素的调查产生重大影响。对于尼罗河谷来说，这涉及到非洲湿润期的干燥，这种情况在我们星球的其他地区也发生过。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力价值和更广泛的评估进行评估，被认为值得支持。影响审查标准。

项目成果

Trace element and Pb and Sr isotope investigation of tooth enamel from archaeological remains at El-Kurru, Sudan: Evaluating the role of groundwater-related diagenetic alteration

苏丹埃尔库鲁考古遗迹牙釉质的微量元素和铅、锶同位素研究：评估地下水相关成岩蚀变的作用

• DOI: 10.1016/j.apgeochem.2021.105068
• 发表时间: 2021
• 期刊: Applied Geochemistry
• 影响因子: 3.4
• 作者: Simonetti, Antonio;Buzon, Michele R.;Corcoran, Loretta;Breidenstein, Abagail M.;Emberling, Geoff
• 通讯作者: Emberling, Geoff