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.

巴黎圣母院大学的安东尼奥·西蒙内蒂（Antonio Simonetti）博士以及普渡大学的米歇尔·布桑（Michele Buzon）博士将调查气候变化对在尼罗河河谷的最后约4，000年中对生物可用性延伸的同位素签名的影响。该项目以先前的研究合作为基础，这些研究人员既建立了基于尼罗河河谷的埃及和努比亚遗址的古代文明中的移民模式和文化互动，主要基于尼罗河河谷的遗址，主要基于腹膜腹地同位素的特征，主要是基于考古动物（土壤，动物，动物，植物）和人类样品的考古同位素特征。这是第一次的结果，详细的研究将准确地追踪由尼罗河河谷内部干燥气候驱动的可生物利用腹地区域分布的任何时间变化。这种方法将被证明对于全球其他地区的其他地区的气候条件在兴趣的考古时期发生了很大变化，这将被证明非常有用。土壤，生物和化石材料中的锶同位素在区域基础上有所不同，并且使用同位素比率科学家可以追踪个体在其一生之间如何在区域之间移动的方式。该项目将洞悉环境因素是否可以改变单个区域的比率。该项目将包括对最先进同位素技术的研究生培训，它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，该研究中心的任务是鼓励苏丹的美国和苏丹考古研究与合作。 Simonetti和Buzon将通过确定在尼罗河沿岸的20个地点，在各个时期占据的20个地点的二，土壤，植物和人类样品的锶，铅和新近同位素特征来扩大研究样品的覆盖范围，并将这些结果与当今的对手进行比较。样本还将从全球相关博物馆的集合中获取。评估尼罗河河谷的生物利用锶还将依赖于在〜250个样本中获得的现有锶同位素数据，其中包括由埃及的考古人和动物样本组成，这些样本均由埃及（emphis，qurneh，qurneh）和nubian，shallal，clup，c-group，c-Group，pharaonic，amara，amara，tomake，tomake，tombare，tombara，kerma，kera kera，kera kera，kera kera，kera，kera，kera，tombare，kera，这些综合结果将有助于表征同位素的变异性，并更好地了解该地区的人类流动性，该地区具有社会政治过渡和群体之间的接触丰富。从该项目获得的结果将有助于阐明尼罗河河谷中全新世气候变化的任何投入或影响。通过比较动物样品的考古或古质同位素特征与当今的对应物，我们的研究将更好地了解尼罗河河谷内的风（风驱动）贡献（如果有的话）。拟议的研究将对基于同位素的古代迁移的考古学家对全球的古代迁移进行重大影响，因为气候变化是在整个地球历史上发生的一种现象。对于尼罗河河谷，这涉及到在我们星球其他地区发生的非洲潮湿时期的干燥。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的评估标准的评估来支持的。

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