Development of Freeze-Shoe Sampler to Recover Aquifer Sands with In-situ Groundwater From up to 1000-ft Depth

1160753van Geen该赠款支持开发新的钻探和取样技术，以同时恢复未受破坏的含水层沉积物和地下水，并在国际大陆科学钻探计划（ICDP）的主持下向科学界提供这项技术。 该开发项目涉及学术和私营部门的合作伙伴关系，以建立和测试基于Peltier冷却器的原型冷冻核心系统，旨在恢复原位，松散的含水层基质和流体，深度为300米，用于随后的地球化学和沉积学分析。 开发完成后，将在ICDP资助的项目中部署冻结岩心系统，以研究与砷化物物质的地下迁移和归宿相关的来源和氧化还原控制的地球化学过程，最终将提供给更广泛的科学界，用于全球地下水地球化学和微生物调查。

1160753van GeenThis grant supports development of new drilling and sampling technology to recover uncompromised aquifer sediment simultaneously with groundwater and to make this technology available to the scientific community under the auspices of the International Continental Scientific Drilling Program (ICDP). The development engages an academic-private partnership to build and test a prototype Peltier cooler based freeze core system designed to recover in situ, unconsolidated aquifer matrix and fluids to depths of 300 m for subsequent geochemical and sedimentological analysis. Upon completion of the development, the freeze core system will be deployed in a ICDP-funded project to study the provenance and redox controlled geochemical processes associated with the subsurface transport and fate of arsenide species and ultimately would be available to the broader science community for groundwater geochemical and microbiological investigations globally.***