Planning: CDP: The Lake Izabal Basin Research Endeavor (LIBRE) Project - Planning Activities to Guarantee Success of a Continental Scientific Drilling Project

规划：CDP：伊萨瓦尔湖盆地研究努力 (LIBRE) 项目 - 确保大陆科学钻探项目成功的规划活动

• 批准号: 2305799
• 负责人: Jonathan Obrist Farner
• 金额: $ 18.37万
• 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: 2023
• 资助国家: 美国
• 起止时间: 2023-08-01 至 2025-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2305799&HistoricalAwards=false
• 关键词: Planning; CDP; Lake; Izabal; Basin

This NSF continental drilling planning grant seeks to establish a temporary seismic array in the vicinity of the Lake Izabal Basin (LIB) in eastern Guatemala to prepare for a deep drilling project in the basin, providing information on faults and seismicity required for drilling safety and to optimize the location of several accompanying shallow boreholes. The LIB contains the longest known continental records of tectonics, climate, and environmental change in the northern neotropics. The LIB developed around 12 million years ago and today holds more than 4 km of sediment, making it an ideal location for an International Continental Scientific Drilling Program (ICDP) project. Additionally, this award will provide for meeting with local drilling companies to establish the technical and procedural requirements necessary for successful continental scientific drilling operations and enable early engagement with local communities and governmental and educational institutions to ensure smooth drilling planning, permitting, and operations. Drilling and coring in continental settings through continental scientific drilling programs has provided answers to compelling scientific questions that allow us to forecast how global Earth Systems might behave in the future. Long and continuous records from continental regions are rare and several areas of the world remain unexplored. One of these areas is Central America, where geography, topography, geology, and biology have influenced several Earth System processes through geologic time. The LIB, located in eastern Guatemala, is at a nexus location to record all these processes in its sedimentary record. The LIB is a pull-apart basin along the North American (NA) and Caribbean (CA) plate boundary with continuous sediment accumulation since the Miocene (~ 12 Ma), in some places with accumulated sediment thickness of over 4 km. The Lake Izabal Basin Research Endeavor drilling project focuses on: 1) investigating the longest known continental sedimentary record from the northern Neotropics to investigate tropical hydroclimate, biological interchanges, paleoseismic events, and volcanic activity since the Miocene; and 2) establishing a seismic observatory along the NA-CA plate boundary. This NSF planning grant provides the opportunity to obtain necessary key preliminary information to guarantee the success of the drilling project. These include: 1) deployment of a temporary seismic array to help identify active faults in the region; 2) establishment of connections with drilling companies in the country, including discussing technical requirements for soft-sediment coring and safety considerations; 3) early engagement with local communities, organizations, policymakers, and stakeholders to ensure smooth drilling planning, permitting, and operations; and 4) producing educational material and meet with educational organizations to help us plan for the drilling project and spread and multiply our outreach efforts in Guatemala.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.

这项NSF大陆钻井规划拨款旨在在危地马拉东部的Lake Izabal盆地（LIB）附近建立一个临时地震阵列，为该盆地的深层钻井项目做准备，提供钻井安全所需的断层和地震活动信息，并优化几个附带的浅井眼的位置。LIB包含了已知时间最长的大陆构造、气候和北部新热带环境变化记录。LIB大约在1200万年前开发，如今拥有超过4公里的沉积物，使其成为国际大陆科学钻探计划（ICDP）项目的理想地点。此外，该合同还将提供与当地钻井公司会面的机会，以建立成功的大陆科学钻井作业所需的技术和程序要求，并使当地社区、政府和教育机构能够尽早参与，以确保顺利的钻井规划、许可和作业。通过大陆科学钻探计划，在大陆环境中进行钻探和取心，为令人信服的科学问题提供了答案，使我们能够预测全球地球系统未来的行为方式。来自大陆地区的长期和连续的记录是罕见的，世界上有几个地区仍未被探索。其中一个地区是中美洲，那里的地理、地形、地质和生物在地质时期影响了几个地球系统的过程。LIB位于危地马拉东部，在其沉积记录中记录了所有这些过程。LIB是一个自中新世（~ 12 Ma）以来沿北美（NA）和加勒比（CA）板块边界的拉分盆地，沉积持续不断，部分地区沉积厚度超过4 km。伊扎巴尔湖盆地研究项目的重点是：1)研究新热带北部已知最长的大陆沉积记录，以研究中新世以来的热带水文气候、生物交换、古地震事件和火山活动；2)沿NA-CA板块边界建立地震观测站。NSF计划拨款为获得必要的关键初步信息提供了机会，以确保钻井项目的成功。这些措施包括：1)部署临时地震阵列，以帮助识别该地区的活动断层；2)与国内钻井公司建立联系，包括讨论软沉积物取心的技术要求和安全考虑；3)尽早与当地社区、组织、政策制定者和利益相关者合作，确保钻井规划、许可和运营的顺利进行；4)制作教育材料并与教育组织会面，以帮助我们规划钻井项目，并扩大和扩大我们在危地马拉的推广工作。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。