Collaborative Research: Comparative Taphonomy and Time-Averaging of Mollusk-Echinoid Assemblages using High-Performance Radiocarbon Dating System
合作研究:使用高性能放射性碳测年系统对软体动物-海胆组合进行比较埋藏学和时间平均
基本信息
- 批准号:2127644
- 负责人:
- 金额:$ 16.61万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:2021
- 资助国家:美国
- 起止时间:2021-09-01 至 2024-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The goal of this project is to assess what happens after death with remains of shelly animals (mollusks and sea urchins) that dominate many seafloors today and are widespread in the marine fossil record. Do those shells last for millennia or perish quickly? Because shells of mollusks and tests of sea urchins are abundant in many marine habitats, how fast or slow they perish may affect the carbon cycle, affect sediments in marine habitats, influence how sedimentary rocks form, and impact the resolution and quality of the fossil record. Moreover, there is tentative evidence that mollusks and sea urchins may differ dramatically in shell durability. Mollusk shells probably persist for centuries around the seafloor, whereas sea urchin tests only survive months or possibly years. This project will compare the post-mortem fate of mollusk shells and sea urchin tests and associated predictions across various types of marine habitats. By combining field surveys of live and dead animals and radiocarbon dating of dead remains, the project will quantify the survival time of mollusk and echinoid remains and use field data to test predictions based on expected shell destruction rates. The results will advance our understanding of marine sedimentation processes, formation of the sedimentary rock and fossil records, possible biases due to variable preservation of different animal groups, and the temporal resolution of fossil samples. The project will provide a direct opportunity for testing a new advanced strategy of radiocarbon dating with a real potential to advance our general ability to date fossil samples quickly and efficiently. The project will also serve as a platform for training a new generation of scientists and broadening participation of groups underrepresented in biology and geology. In addition, educational movies using novel immersive digital technology will be used to convey the excitement of conducting scientific research in marine settings. The project will engender international partnerships with the Commonwealth of Bahamas and provide collaborative bridges connecting students and researchers from public universities in Arizona and Florida.This project aims to improve our understanding fossilization processes that lead to preservation or destruction of benthic mollusks and echinoids, which are both important components of the marine fossil record. The main goal is to assess the hypothesis that these two groups of animals differ in skeletal durability and fossilization potential. By integrating live-dead field surveys and new generation radiocarbon instrumentation, we will test three predictions that stem from this hypothesis: (1) time-averaging, variation in age of specimens, is orders of magnitude higher for mollusks compared to echinoids; (2) live-dead specimen ratios are orders of magnitude lower for mollusks than for echinoids; and (3) specimen-fragment ratio is significantly higher for mollusks than for echinoids. These predictions will be tested using surface and subsurface samples from present-day seafloors around Florida and the Bahamas. The project will target diverse carbonate and siliciclastic settings to assess if the observed patterns are generalizable across different habitat types. The project will produce 45 live-dead surveys of mollusks and echinoids at 15 sampling sites across five localities. These field data will be augmented by radiocarbon dating of 1000 individual specimens of mollusks and echinoids. This extraordinarily large number of radiocarbon ages is now feasible using the new NSF-supported MICADAS accelerator mass spectrometer (AMS) at Northern Arizona University (NAU) . Quantifying taphonomic differences between two major groups of marine invertebrates will advance our understanding of sedimentological processes related to formation of biogenic sedimentary rocks, the role of shell-producing organisms as carbon sinks or carbon sources, and the quality and temporal resolution of paleontological data. The proposed approach is designed as a broadly applicable research strategy transferrable to study systems. In terms of broader impacts activities, the project will advance STEM careers of one postdoctoral researcher, one graduate student, and ~12 undergraduate students, with specific focus on recruitment and career development of minority STEM students. The student training will encompass comprehensive research skills and will be vertically integrated to benefit mentoring skills of early career scientists. Outreach and education materials using 360° immersive video technology will include 3D-augmented reality movies of seafloor exploration by SCUBA (freely accessible as immersive 3D YouTube movies). The partnership between UF and NAU will facilitate networking of minority students in Florida and Arizona, and the international field work in partnership with the Gerace Research Centre will engage Bahamian students.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.
该项目的目标是评估贝类动物(软体动物和海胆)的遗骸在死亡后会发生什么,这些动物如今在许多海底占据主导地位,并在海洋化石记录中广泛存在。这些贝壳是会持续几千年,还是很快就会消亡?由于软体动物的贝壳和海胆的测试在许多海洋生境中都很丰富,它们死亡的快慢可能会影响碳循环,影响海洋栖息地的沉积物,影响沉积岩的形成,并影响化石记录的分辨率和质量。此外,有初步证据表明,软体动物和海胆在外壳耐久性方面可能存在巨大差异。软体动物贝壳可能会在海底持续几个世纪,而海胆测试只能存活几个月甚至几年。该项目将比较软体动物贝壳和海胆的死后命运,以及各种类型海洋栖息地的相关预测。通过结合对活的和死的动物的实地调查以及对死亡遗骸的放射性碳测年,该项目将量化软体动物和棘皮动物遗骸的存活时间,并使用现场数据来测试基于预期贝壳破坏率的预测。这些结果将促进我们对海洋沉积过程、沉积岩和化石记录的形成、不同动物种类的不同保存所可能产生的偏差以及化石样品的时间分辨率的理解。该项目将为测试一种新的先进的放射性碳测年策略提供一个直接的机会,该策略具有真正的潜力,可以提高我们快速有效地测定化石样品的总体能力。该项目还将成为培训新一代科学家的平台,并扩大生物学和地质学领域代表性不足群体的参与。此外,还将使用新型沉浸式数字技术制作教育电影,传达在海洋环境中进行科学研究的兴奋。该项目将与巴哈马联邦建立国际伙伴关系,并提供合作桥梁,连接亚利桑那州和佛罗里达州公立大学的学生和研究人员。该项目旨在提高我们对导致海底软体动物和棘球类动物保存或销毁的化石过程的了解,这两种动物都是海洋化石记录的重要组成部分。主要目的是评估这两组动物在骨骼耐久性和石化潜力方面存在差异的假设。通过整合活体-死亡现场调查和新一代放射性碳仪器,我们将检验源自这一假设的三个预测:(1)时间平均,样本的年龄变化,软体动物比棘类动物高出几个数量级;(2)软体动物的活体-死亡样本比率比棘类动物低一个数量级;以及(3)软体动物的样本碎片比率明显高于棘类动物。这些预测将使用佛罗里达和巴哈马群岛周围现今海底的表层和地下样本进行检验。该项目将针对不同的碳酸盐和硅质碎屑环境,评估观察到的模式是否可以在不同的栖息地类型中推广。该项目将在五个地区的15个采样点进行45次软体动物和棘球动物的活体调查。这些现场数据将通过对1000个软体动物和棘球动物个体样本的放射性碳测年来增强。现在,使用北亚利桑那大学(NAU)由NSF支持的新型MICADAS加速器质谱仪(AMS),这种超大数量的放射性碳年龄是可行的。量化两大类群海洋无脊椎动物的埋藏学差异将有助于我们理解与生物成因沉积岩形成有关的沉积学过程、产壳生物作为碳汇或碳源的作用以及古生物数据的质量和时间分辨率。该方法被设计为一种可转移到研究系统的广泛适用的研究策略。在更广泛的影响活动方面,该项目将促进一名博士后研究员、一名研究生和约12名本科生的STEM职业生涯,特别侧重于少数民族STEM学生的招聘和职业发展。学生培训将包括全面的研究技能,并将垂直整合,以利于早期职业科学家的指导技能。使用360°身临其境视频技术的宣传和教育材料将包括通过潜水进行海底探索的3D增强现实电影(可免费获取身临其境的3D YouTube电影)。UF和NAU之间的伙伴关系将促进佛罗里达州和亚利桑那州少数族裔学生之间的联系,与Gerace研究中心合作的国际实地工作将吸引巴哈马学生。该奖项反映了NSF的法定使命,并通过使用基金会的智力优势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)
数据更新时间:{{ journalArticles.updateTime }}
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
数据更新时间:{{ journalArticles.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ monograph.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ sciAawards.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ conferencePapers.updateTime }}
{{ item.title }}
- 作者:
{{ item.author }}
数据更新时间:{{ patent.updateTime }}
Darrell Kaufman其他文献
奈良文化財研究所における情報技術を活用した史料の利活用の促進
奈良文化财研究所利用信息技术推进历史资料的利用
- DOI:
- 发表时间:
2016 - 期刊:
- 影响因子:0
- 作者:
Julien Emile-Geay;Nicholas McKay;Darrell Kaufman;Lucien von Gunten;Jianghao Wang;Kevin Anchukaitis;Nerilie Abram;Jason Addison;Mark Curran;Michael Evans et al. (計99名、K. Kawamura58番目);馬場 基 - 通讯作者:
馬場 基
Channel change, sediment transport, and fish habitat in a coastal stream: Effects of an extreme event
- DOI:
10.1007/bf01871443 - 发表时间:
1985-01-01 - 期刊:
- 影响因子:3.000
- 作者:
Robert Coats;Laurel Collins;Joan Florsheim;Darrell Kaufman - 通讯作者:
Darrell Kaufman
Darrell Kaufman的其他文献
{{
item.title }}
{{ item.translation_title }}
- DOI:
{{ item.doi }} - 发表时间:
{{ item.publish_year }} - 期刊:
- 影响因子:{{ item.factor }}
- 作者:
{{ item.authors }} - 通讯作者:
{{ item.author }}
{{ truncateString('Darrell Kaufman', 18)}}的其他基金
Testing amino acid paleothermometry in radiocarbon-dated lake sediment
测试放射性碳测年湖泊沉积物中的氨基酸古温度测定法
- 批准号:
2317409 - 财政年份:2023
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative Research: Paleo Records Of GLacier And Climate changes Inferred from Alaskan Lakes (PROGLACIAL)
合作研究:从阿拉斯加湖泊推断的冰川和气候变化的古记录(PROGLACIAL)
- 批准号:
2303462 - 财政年份:2023
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative Research: Toward placing contemporary Arctic summer warming in a millennial perspective with a pan-Arctic record of Neoglacial crysophere expansion
合作研究:通过新冰川期冰冻圈扩张的泛北极记录,从千禧年的角度看待当代北极夏季变暖
- 批准号:
2100379 - 财政年份:2021
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative research: Climate controls on carbon accumulation in upland permafrost at millennial scales
合作研究:千年尺度上气候对高地永久冻土碳积累的控制
- 批准号:
1844205 - 财政年份:2020
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Development of New Techniques: Sustaining and sharpening amino acid geochronology
新技术的开发:维持和加强氨基酸地质年代学
- 批准号:
1855381 - 财政年份:2019
- 资助金额:
$ 16.61万 - 项目类别:
Continuing Grant
Tapping outstanding new lake records of annual- to millennial-scale Holocene climate variability in the north Pacific region
挖掘北太平洋地区年至千年尺度全新世气候变化的杰出新湖泊记录
- 批准号:
1602106 - 财政年份:2016
- 资助金额:
$ 16.61万 - 项目类别:
Continuing Grant
P2C2: Synthesis of Holocene Proxy Climate Records from Western North America
P2C2:北美西部全新世代理气候记录的综合
- 批准号:
1602105 - 财政年份:2016
- 资助金额:
$ 16.61万 - 项目类别:
Continuing Grant
Facilities Support: Amino Acid Geochronology Laboratory
设施支持:氨基酸年代学实验室
- 批准号:
1234413 - 财政年份:2012
- 资助金额:
$ 16.61万 - 项目类别:
Continuing Grant
A Postdoctoral Scientist to Synthesize Proxy Records of Arctic Holocene Climate
博士后科学家合成北极全新世气候的代理记录
- 批准号:
1107869 - 财政年份:2011
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative Research: Resolving centennial- to millennial-scale trends in glacier extent and lake sedimentation in the Brooks Range, Arctic Alaska
合作研究:解决阿拉斯加北极地区布鲁克斯山脉冰川范围和湖泊沉积的百年至千年尺度趋势
- 批准号:
1107662 - 财政年份:2011
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
相似国自然基金
Research on Quantum Field Theory without a Lagrangian Description
- 批准号:24ZR1403900
- 批准年份:2024
- 资助金额:0.0 万元
- 项目类别:省市级项目
Cell Research
- 批准号:31224802
- 批准年份:2012
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research
- 批准号:31024804
- 批准年份:2010
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Cell Research (细胞研究)
- 批准号:30824808
- 批准年份:2008
- 资助金额:24.0 万元
- 项目类别:专项基金项目
Research on the Rapid Growth Mechanism of KDP Crystal
- 批准号:10774081
- 批准年份:2007
- 资助金额:45.0 万元
- 项目类别:面上项目
相似海外基金
Collaborative Research: How to manipulate a plant? Testing for conserved effectors and plant responses in gall induction and growth using a multi-species comparative approach.
合作研究:如何操纵植物?
- 批准号:
2305880 - 财政年份:2023
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative Research: Ecologies of Participation in Island Karst Science and Conservation: A Comparative Multimethods Approach
合作研究:参与岛屿喀斯特科学与保护的生态学:比较多方法方法
- 批准号:
2236152 - 财政年份:2023
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative Research: Ecologies of Participation in Island Karst Science and Conservation: A Comparative Multimethods Approach
合作研究:参与岛屿喀斯特科学与保护的生态学:比较多方法方法
- 批准号:
2236151 - 财政年份:2023
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative Research: RESEARCH-PGR: Comparative genomics of the capitulum: deciphering the molecular basis of a key floral innovation
合作研究:RESEARCH-PGR:头状花序的比较基因组学:破译关键花卉创新的分子基础
- 批准号:
2214473 - 财政年份:2022
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative Research: Comparative genomics and physiology to discover integrated mechanisms that support phenotypic plasticity
合作研究:比较基因组学和生理学,发现支持表型可塑性的综合机制
- 批准号:
2200320 - 财政年份:2022
- 资助金额:
$ 16.61万 - 项目类别:
Continuing Grant
Collaborative Research: RESEARCH-PGR: Comparative genomics of the capitulum: deciphering the molecular basis of a key floral innovation
合作研究:RESEARCH-PGR:头状花序的比较基因组学:破译关键花卉创新的分子基础
- 批准号:
2214472 - 财政年份:2022
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative Research: RESEARCH-PGR: Comparative genomics of the capitulum: deciphering the molecular basis of a key floral innovation
合作研究:RESEARCH-PGR:头状花序的比较基因组学:破译关键花卉创新的分子基础
- 批准号:
2214474 - 财政年份:2022
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative Research: Comparative genomics and physiology to discover integrated mechanisms that support phenotypic plasticity
合作研究:比较基因组学和生理学,发现支持表型可塑性的综合机制
- 批准号:
2200319 - 财政年份:2022
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative Research: RUI: Dynamic Learning in Comparative Courts: A Cross-National Analysis of Judicial Decision Making in Canada, the United States, and the United Kingdom
合作研究:RUI:比较法院的动态学习:加拿大、美国和英国司法决策的跨国分析
- 批准号:
2325460 - 财政年份:2022
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant
Collaborative Research: RUI: Comparative analysis of endocytic trafficking during cell division
合作研究:RUI:细胞分裂过程中内吞运输的比较分析
- 批准号:
2052517 - 财政年份:2021
- 资助金额:
$ 16.61万 - 项目类别:
Standard Grant