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约会方法在考古和古人类学环境中具有广泛的适用性，并且已成为一种高度准确和精确的约会工具，该工具对人类和灵长类动物进化的研究广泛贡献。在国家科学基金会的支持下，调查人员将在加利福尼亚州伯克利的伯克利地理学中心（BGC）维护，运营和升级为期三年的努力，以维护，运营和升级40AR/39AR约会设施。这项赠款实现的研究是本质上的跨学科，并促进了地质，考古和古人类学科学家之间的相互作用。此外，BGC生产的考古年龄数据经常在备受瞩目的期刊上发表，这些期刊被外行新闻媒体涵盖，因此在报纸，杂志，广播，电视以及越来越多的网络中获得广泛的公开传播。最后，研究生和博士后研究员将来将继续进行考古研究，他们将在使用约会设施的使用方面接受直接培训，这些培训有望代表下一代40AR/39AR地球人工学家。许多其他研究生和博士后研究员将收到考古数据，以直接支持其现场研究。该奖项支持计划的设备维修和升级，以确保考古学界访问40AR/39AR约会实验室，从而在这种高级和强大的约会技术中实现最高的预定级别，以实现最高的精确级别，以实现精确的准确性和通过精确度。设备和技术的计划改进将在真空测试和开发天然气提取系统，计算机基础设施和软件开发的领域。这笔资金还将有助于支持从事重要任务的实验室技术人员，例如样品制备，辐照处理和质谱计的操作。最后，为PIS提供了部分资金，从实验室向利亚森（Liason）和在追求项目研究的领域中为利亚森（Liason）提供了资金。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的评估来支持的，并具有更广泛的影响。

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.