Late Cenozoic Ice-Volume Changes in Antarctica Inferred from Cosmogenic Nuclide Measurements

该奖项是为了支持一年的研究，以完成分析 根据先前的授权（DPP-8917581）获得的样本。 的 要进行的分析包括加速器质谱 (AMS)在南极洲采集的岩石样品暴露的年代测定 年龄约会 这项工作将加强目前对 干旱河谷和邻近地形的地质历史， 在过去的700万年里， 目前正在测量的同位素。 样品制备列车 致力于为钙-41分析准备陆地样本 也将被建造成允许将这种同位素添加到 目前在这些样本上测量的同位素组 （铍-10、铝-26、氯-36和碳-14）。

This award is for support of a one year study to complete analyses of samples obtained under a previous grant (DPP-8917581). The analyses to be performed include accelerator mass spectrometric (AMS) dating of rock samples collected in Antarctica for exposure age dating. This work will enhance current understanding of the geologic history of the Dry Valleys and adjacent terrain during the past 7 million years, the period of time accesssible to the mix of isotopes currently being measured. A sample preparation train dedicated to preparing terrestrial samples for calcium-41 analyses will also be constructed to allow the addition of this isotope to the suite of isotopes currently being measured on these samples (Beryllium-10, Aluminum 26, Chlorine-36, and Carbon-14).