MRI: Acquisition of Accelerated Solvent Extractor and Gas Chromatograph for Undergraduate Paleoclimatological Research

1126395 Cleaveland-Peterson这项重大研究仪器拨款支持购买加速溶剂提取系统(ASE)和带有火焰离子化检测器的气相色谱仪(GC-FID)。该设备将支持PI和大学生在古海洋学和古气候学方面的研究，这些研究依赖于对保存在海洋沉积物和陆地序列中的脂肪生物标记物的分析。特别是，PI寻求将GC用于从海洋沉积物和露头岩石中发现的复杂有机混合物中分离和分析烷基化合物，以此作为估算过去海表面温度的指标。这项技术可以为研究新生代全球气候、其与轨道强迫的关系、过去大气二氧化碳水平对地球气候系统的影响以及冰川和间冰期过渡的影响提供新的信息。路德学院是一所本科生文科院校，PI是一名女性早期职业地球科学家(2009年博士)。*

1126395 Cleaveland-PetersonThis Major Research Instrumentation grant supports acquisition of an accelerated solvent extraction system (ASE) and a gas chromatograph with flame ionization detector (GC-FID). The equipment will support PI and undergraduate student research in paleoceanography and paleoclimatology that relies on analysis of lipid biomarkers preserved in marine sediments and terrestrial sequences. In particular the PI seeks to focus on the use of the GC for isolation and analysis of alkenones from complex organic mixtures found in marine sediments and rock outcrops as a proxy for estimating past sea surface temperatures. The technique can offer new information for the study of Cenozoic global climate, its relationship to orbital forcing and the effects of past atmospheric CO2 levels on Earth's climate system and implications for glacial and interglacial transitions. Luther College is an undergraduate liberal arts institution and the PI is a female early career geoscientist (Ph.D. 2009).***