Collaborative Research: RAPID: Opportunity to acquire continuous, high-resolution geochemical proxies for paleoclimate, paleoenvironment, and modern hydrogeology from CPCP cores

合作研究：RAPID：从 CPCP 核心获取古气候、古环境和现代水文地质的连续、高分辨率地球化学代理的机会

• 批准号: 2227245
• 负责人: Sean Kinney
• 金额: $ 10.8万
• 依托单位: Columbia University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-07-15 至 2024-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2227245&HistoricalAwards=false
• 关键词: Collaborative; Research; RAPID; Opportunity; acquire

This project will generate a continuous record of chemical composition changes through rock cores collected in Petrified Forest National Park as part of the NSF-funded Colorado Plateau Coring Project. The study has three main objectives, 1) to develop an understanding of how changes in the chemistry of sediments reflect changes in past climate from 200-million-year-old river and flood plain systems, 2) to use this record to develop an understanding of the influence of both CO2 and changes in Earth’s orbital parameters on past climatic variations and 3) develop a chemical dataset that will provide a baseline understanding of the distribution of potential ground water contaminants (e.g., As, U) in adjacent lands of the Navajo Nation and surrounding regions that draw water from the cored strata. The data generated in this project will serve as the basis of a project for a 2022 summer REU student from Navajo Technical University. In addition, this project will support two early career scientists and two Columbia University graduate students. Finally, the project team will develop curriculum and outreach products through the Rutgers Geology Museum and facilitate synergistic activities on related environmental issues in New Jersey and Colorado Plateau regions. The Triassic Chinle and Moenkopi Formations occupy huge areas of the Colorado Plateau and record the history of Triassic environmental change on an immense alluvial plain and are famous for their fossil record of the evolution of continental ecosystems including dinosaurs and mammals. The physical, paleomagnetic, and geochronological stratigraphy of CPCP-1 cores has been described in a suite of recent papers and placed into a larger paleoenvironmental and global temporal context, but the chemical stratigraphy of the cores has yet to be analyzed. Several small projects have demonstrated the utility of such data, but the lack of synoptic chemical datasets from these cores hinders their potential for both paleo- and modern (including their impact on groundwater) environmental analysis. This project will fill this deficit with the acquisition of continuous XRF chemical data that will permit tests of hypotheses of orbital pacing of climate (long eccentricity and inclination cycles) as recorded in these strata and of how cyclical climate and the deep time hydrological history of these strata relates to present stratigraphic distribution of potential geogenic contaminants and their migration into present day aquifers.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.

作为NSF资助的科罗拉多高原加油项目的一部分，该项目将通过在石化森林国家公园中收集的岩石岩心产生化学成分变化的连续记录。 The study has three main objectives, 1) to develop an understanding of how changes in the chemistry of sediments reflect changes in past climate from 200-million-year-old river and flood plain systems, 2) to use this record to develop an understanding of the Influence of both CO2 and changes in Earth’s orbital parameters on past climatic variations and 3) develop a chemical dataset that will provide a baseline understanding of the distribution of potential ground water contaminants (e.g., As, U) in adjacent纳瓦霍民族和周围地区的土地从核心地层中吸水。该项目中产生的数据将成为纳瓦霍技术大学2022年夏季REU学生的项目的基础。此外，该项目将支持两位早期的职业科学家和两名哥伦比亚大学的研究生。最后，项目团队将通过罗格斯地质博物馆开发课程和外展产品，并促进有关新泽西州和科罗拉多高原地区相关环境问题的协同活动。三叠纪的chinle和moenkopi地层占据了科罗拉多高原的巨大区域，并在巨大的冲积平原上记录了三叠纪环境变化的历史，并以其化石记录（包括恐龙和哺乳动物）连续生态系统的化石记录而闻名。 CPCP-1核心的物理，古磁和年代学层学层学已在最近的一系列论文中进行了描述，并将其放置在更大的古环境和全球临时环境中，但是核心的化学层学层次学尚未分析。几个小项目证明了此类数据的实用性，但是这些核心缺乏概要化学数据集阻碍了它们对古 - 现代和现代（包括对地下水的影响）环境分析的潜力。该项目将通过获取连续的XRF化学数据来填补这一防御法定使命，并使用基金会的知识分子优点和更广泛的影响标准通过评估被认为是宝贵的支持。