Acquisition of a CO2 Coulometer with Acidification Module and Furnace Kit for Paleoenvironmental Research

0841739 Rowe该提案寻求约3.1万美元的资金，用于购买UIC库仑计和酸化模块，以进行古环境研究。该系统将能够分析水，岩石和土壤样品中的总有机碳和总无机碳（TOC和TIC）。PI具有使用该仪器的经验，将在UT-Arlington的稳定同位素设施中进行配置和安置。PI将提供费用结构较小的分析，以便购买供应品和支持消耗品。此次收购的总体研究目标围绕着更好地了解古海洋学条件。库仑计将用于评估沉积层中的DIC和DOC，以关联生物地球化学指标（如在缺氧-缺氧条件下），主要是在高沉积区（如海洋盆地）。还将通过了解富含有机物的沉积物中的缺氧-缺氧条件来评估陆源营养物含量。该仪器在研究与二叠纪-三叠纪边界大规模灭绝有关的地质地层学方面也至关重要。最后，最近将通过将水文参数与碳和元素地球化学联系起来来评估河流地貌。该仪器的数据将通过PaleoStrat和CHRONOS数据库提供给社区。它将被用于一个REU项目，研究煤矿开采对阿巴拉契亚河流碳动力学的影响。该仪器将允许PI对需要额外分析的样品更具选择性，并允许学生有机会进行重要但可能更直接的测量。PI将把该工具纳入三门课程。PI在女生和少数民族学生中的代表性很高。

0841739Rowe This proposal seeks funding of ~$31K to purchase a UIC coulometer and acidification module to perform paleoenvironmental research. The system will be able to analyze total organic and total inorganic carbon (TOC and TIC) in water, rock, and soil samples. The PI has experience with this instrument and it will be configured and housed in the stable isotope facility at UT-Arlington. The PI will offer analyses with a small fee structure to allow purchase of supplies and support consumables. The overall research goals for this acquisition revolve around better understanding paleooceanographic conditions. The coulometer will be used to assess DIC and DOC in depositional formations to relate biogeochemical indicators (such as under oxic-anoxic conditions), primarily in high-deposition areas (like ocean basins). Land-derived nutrient loadings will also be assessed through understanding oxic-anoxic conditions in organic-rich sedimentary material. The instrument will also be crucial in examining the geostratigraphy associated with the Permian-Triassic boundary mass extinction. Finally, stream geomorphology will be assessed in recent times by linking hydrological parameters with carbon and elemental biogeochemistry. Data from this instrument will be made available to the community through PaleoStrat and CHRONOS databases. It will be used in an REU program examining coal mining impacts on carbon dynamics in Appalachian streams. This instrument will allow the PI to be more selective for samples needing additional analysis and allow students the opportunity to take vital, but perhaps more straight-forward measurements. The PI will incorporate the instrument into three courses. The PI is well-represented in female and minority students.***