Continued development and application of 40Ar/39Ar dating for archaeometric research

40Ar/39Ar测年法在考古研究中的持续开发和应用

• 批准号: 2020044
• 负责人: Alan Deino
• 金额: $ 25.44万
• 依托单位: Berkeley Geochronology Center
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-15 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2020044&HistoricalAwards=false
• 关键词: Continued; development; application; 40Ar; 39Ar

The 40Ar/39Ar dating method has broad applicability in archeological and paleoanthropological contexts, and is well established as a highly accurate and precise dating tool that has contributed widely to the study of hominin and primate evolution. With National Science Foundation support, the investigators will initiate a three-year effort to maintain, operate and upgrade the 40Ar/39Ar dating facilities at the Berkeley Geochronology Center (BGC) in Berkeley, California. The research studies enabled by this grant are intrinsically interdisciplinary and foster improved interaction between geological, archaeological, and paleoanthropological scientists. In addition, the archaeometric age data produced by BGC are frequently published in high-profile journals that are covered by lay news media, hence receive broad public dissemination in newspapers, magazines, radio, television, and increasingly, the web. Finally, graduate students and postdoctoral fellows, many of whom will continue archaeometric research in the future, will receive direct training in the use of the dating facilities, poised to represent the next generation of 40Ar/39Ar geochronologists. Many other graduate students and postdoctoral fellows will receive archaeometric data in direct support of their field studies.This award supports planned equipment repairs and upgrades that will ensure access by the Archaeometric community to a 40Ar/39Ar dating laboratory exercising the best possible practices in this advanced and powerful dating technique, in order to attain the highest possible levels of precision, accuracy and throughput. The planned improvements to equipment and technique will be in the areas of vacuum testing and development of gas extraction systems, computer infrastructure and software development. This funding will also help support a laboratory technician who engages in critical tasks such as sample preparation, irradiation handling, and mass-spectrometer operation. Finally, partial funding is provided for the PIs to liason from the laboratory and in the field with the Archeaometric community in pursuit of project research.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.

40Ar/39Ar定年法在考古和古人类研究中具有广泛的适用性，是一种高度精确的定年工具，对古人类和灵长类动物的进化研究做出了广泛的贡献。在美国国家科学基金会的支持下，研究人员将开始一项为期三年的工作，以维护、操作和升级加州伯克利伯克利地质年代学中心（BGC）的40Ar/39Ar测年设备。这项资助的研究本质上是跨学科的，并促进了地质、考古和古人类学家之间的互动。此外，BGC制作的考古年龄数据经常发表在由专业新闻媒体报道的知名期刊上，因此在报纸、杂志、广播、电视以及越来越多的网络上得到广泛的公众传播。最后，研究生和博士后，他们中的许多人将在未来继续考古研究，将接受使用测年设备的直接培训，准备代表下一代40Ar/39Ar地质年代学家。许多其他研究生和博士后将收到考古数据，直接支持他们的实地研究。该奖项支持计划中的设备维修和升级，以确保考古社区能够进入40Ar/39Ar测年实验室，在这种先进而强大的测年技术中行使最佳实践，以达到最高的精度、准确性和吞吐量水平。计划中的设备和技术改进将在真空测试和开发气体抽取系统、计算机基础设施和软件开发等领域。这笔资金还将帮助支持从事样品制备、辐照处理和质谱仪操作等关键任务的实验室技术人员。最后，部分资金将提供给pi，以便他们在实验室和实地与考古学界联系，进行项目研究。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

Phytoliths, pollen, and microcharcoal from the Baringo Basin, Kenya reveal savanna dynamics during the Plio-Pleistocene transition

• DOI: 10.1016/j.palaeo.2020.109779
• 发表时间: 2020-05
• 期刊: Palaeogeography, Palaeoclimatology, Palaeoecology
• 作者: Chad Yost;S. Ivory;A. Deino;N. Rabideaux;J. Kingston;A. Cohen

New Olduvai Basin stratigraphy and stratigraphic concepts revealed by OGCP cores into the Palaeolake Olduvai depocentre, Tanzania

坦桑尼亚 Palaeolake Olduvai 沉积中心 OGCP 岩心揭示的新 Olduvai 盆地地层学和地层学概念

• DOI: 10.1016/j.palaeo.2020.109751
• 发表时间: 2020
• 期刊: Palaeogeography palaeoclimatology palaeoecology
• 影响因子: 3
• 作者: Stanistreet, I G;Stollhofen, H;Deino, A;McHenry, L;Toth, N;Schick, K;Njau, J
• 通讯作者: Njau, J

Evidence of early C4 grasses, habitat heterogeneity, and faunal response during the Miocene Climatic Optimum in the Mojave Region

莫哈韦地区中新世气候最佳时期早期 C4 草、生境异质性和动物群反应的证据

• DOI: 10.1016/j.palaeo.2017.11.020
• 发表时间: 2018
• 期刊: Palaeoecology
• 作者: Smiley, Tara M.;Hyland, Ethan G.;Cotton, Jennifer M.;Reynolds, Robert E.
• 通讯作者: Reynolds, Robert E.

The expansion of the Acheulian to the Southeastern Ethiopian Highlands: Insights from the new early Pleistocene site-complex of Melka Wakena

阿舍利山脉向埃塞俄比亚东南部高地的扩张：来自梅尔卡瓦克纳新的早更新世遗址群的见解

• DOI: 10.1016/j.quascirev.2020.106763
• 发表时间: 2021
• 期刊: Quaternary science reviews
• 影响因子: 4
• 作者: Erella, Hovers;Tegenu, Gossa;Asfawossen, Asrat;Elizabeth, M. Niespolo;Angesom, Resom;Paul, R. Renne;Ravid, Ekshtain;Gadi, Herzlinger;Natnael, Ketema;Bienvenido, Martínez-Navarro
• 通讯作者: Bienvenido, Martínez-Navarro

Reconstructing the Environmental Context of Human Origins in Eastern Africa Through Scientific Drilling

通过科学钻探重建东非人类起源的环境背景

• DOI: 10.1146/annurev-earth-031920-081947
• 发表时间: 2022
• 期刊: Annual Review of Earth and Planetary Sciences
• 影响因子: 14.9
• 作者: Cohen, Andrew S.;Campisano, Christopher J.;Arrowsmith, J. Ramón;Asrat, Asfawossen;Beck, Catherine C.;Behrensmeyer, Anna K.;Deino, Alan L.;Feibel, Craig S.;Foerster, Verena;Kingston, John D.
• 通讯作者: Kingston, John D.