Collaborative Research: Snapshots of Miocene to Recent Paleoenvironmental and Paleoecological Conditions in the Northern Neotropics

合作研究：中新世到北部新热带地区近期古环境和古生态条件的快照

• 批准号: 2029102
• 负责人: Jonathan Obrist Farner
• 金额: $ 60.43万
• 依托单位: Missouri University of Science and Technology
• 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: 2021-08-15 至 2024-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2029102&HistoricalAwards=false
• 关键词: Collaborative; Research; Snapshots; Miocene; Recent

This award is funded in whole or in part under the American Rescue Plan Act of 2021 (Public Law 117-2).During the last 20 million years, Earth has experienced several climatic changes that affected environmental and ecological conditions in several locations around the world. While numerous studies from high latitude regions have provided a wealth of information about the effects of these past climatic fluctuations, how they affected conditions in the continental tropics is poorly known, mainly due to the lack of long geological records that can be used for scientific investigations. In this project, the Lake Izabal Basin in Guatemala, which preserves one of the longest records of continental sediments in the tropics, will be studied to develop a better understanding of how the area responded to key climate events in the past. In addition to the project’s scientific outcomes, the project will provide educational and research opportunities to two graduate students through participation in an international research project. The project also will reach a broader audience through the development of geoscience class modules for elementary and middle school science classes and educational geoscience workshops for K-12 science teachers. While numerous studies from high latitude regions have provided a wealth of information about the effects of late Cenozoic climatic fluctuations on environmental and ecological conditions, our knowledge from tropical regions is minimal by comparison. The proposed project focuses on the intersection of sedimentary systems and ecosystems in the Lake Izabal Basin in eastern Guatemala, a large pull-apart basin that contains a thick sedimentological record that extends into the Miocene. The investigation will use the sedimentological record through the study of outcrop data representing the basin’s basement and initial infill from the Oligocene-Pliocene, industry-acquired seismic data covering the Miocene-Recent, drill cuttings from a well spanning the Miocene-Recent, and long sediment cores (10 m) covering the last 30,000 years. The project will provide educational and international research opportunities to two graduate students through training in geophysical, sedimentological, and palynological data acquisition, processing, and interpretation, thereby contributing towards a stronger geoscience workforce. The project will also reach out to a broader audience by visiting science classrooms in Missouri and presenting and sharing research results during STEM days for elementary and middle school female students at Missouri University of Science and Technology. Finally, involvement and collaboration with Guatemalan institutions will provide international research opportunities and collaborations and enhance transfer of knowledge among U.S. and Guatemalan collaborators.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.

该奖项是根据2021年《美国救援计划法》（公法117-2）全部或部分资助的。在过去的2000万年中，地球经历了几种气候变化，影响了世界各地多个地点的环境和生态条件。尽管来自高纬度地区的大量研究提供了有关这些过去气候波动的影响的大量信息，但它们如何影响连续的热带地区的条件是鲜为人知的，这主要是由于缺乏可用于科学研究的长期地质记录。在该项目中，将研究危地马拉湖的伊扎巴尔湖盆地，该湖始于热带中最长的连续沉积物记录之一，以更好地了解该地区过去对关键气候事件的反应。除了该项目的科学成果外，该项目还将通过参加国际研究项目为两名研究生提供教育和研究机会。该项目还将通过开发针对K-12科学教师的小学和中学科学课程以及教育地球科学研讨会的地球科学课程模块来吸引更广泛的受众。尽管来自高纬度地区的大量研究提供了有关周期新生代民间波动对环境和生态条件的影响的大量信息，但相比之下，我们来自热带地区的知识却很少。拟议的项目着重于危地马拉东部伊扎巴尔湖盆地的沉积系统和生态系统的交集，危地马拉东部是一个大型的小型盆地，其中包含厚实的沉积学记录，该记录延伸到中新世。这项投资将通过研究露头数据来使用沉积学记录，这些数据代表盆地的地下室和初始填充渐新新世 - 行业获得的地震数据，这些数据涵盖了中新世，从中新世良好的中新世插条，涵盖了中新世 - 矿石 - 旧沉积物（10 m）（10 m），并涵盖了过去30,000年的长时间（10 m）。该项目将通过培训地球物理，沉积和载流数据获取，处理和解释的培训为两名研究生提供教育和国际研究机会，从而为更强大的地球科学劳动力做出了贡献。该项目还将通过访问密苏里州的科学课程，并在密苏里科学技术大学的小学和中学女学生中介绍和分享研究结果，从而吸引更广泛的受众。最后，与危地马拉机构的参与与合作将提供国际研究机会和合作，并加强在美国和危地马拉合作者之间的知识转移。该奖项反映了NSF的法定使命，并被认为是值得通过基金会的知识分子优点和更广泛的审查标准通过评估来通过评估来支持的。

项目成果

A millennium of anthropic and climate dynamics in the Lake Izabal Basin, eastern lowland Guatemala

• DOI: 10.1016/j.revpalbo.2023.104872
• 发表时间: 2023-02
• 期刊: Review of Palaeobotany and Palynology
• 影响因子: 1.9
• 作者: Erdoo Mongol;F. Oboh-Ikuenobe;Jonathan Obrist‐Farner;J. Moreno;A. Correa-Metrio

Incoherency in Central American Hydroclimate Proxy Records Spanning the Last Millennium

• DOI: 10.1029/2022pa004445
• 发表时间: 2023-03
• 期刊: Paleoceanography and Paleoclimatology
• 影响因子: 3.5
• 作者: Jonathan Obrist‐Farner;B. Steinman;N. Stansell;J. Maurer