Nuclear Studies of Accumulating and Ablation Ice Using Cosmogenic 14C

该奖项是为了支持一项研究宇宙成因的原位生产 极地冰中的碳14 原位产生的碳-14具有 与捕获的大气碳-14不同的特征， 并且可以用作冰积累/消融过程的示踪剂 和利率。 利用以前设立的赠款开展的工作 大量的原位碳-14被保留在 因此，常规的碳-14压实年龄可以 由于他们没有考虑到现场的情况， 成分 这项研究将检查几个冰芯的样本 包括东方号、自治领山脉、麦克默多 南极，艾伦山和阿德利海岸。

This award is for support of a study of cosmogenic in-situ produced carbon-14 in polar ice. Carbon-14 produced in-situ has a signature which is distinct from the trapped atmospheric carbon-14, and can be used as a tracer for ice accumulation/ablation processes and rates. Work carried out under a previous grant established that an appreciable amount of in-situ carbon-14 is retained in firn, and therefore conventional carbon-14 compaction ages can be considerable underestimates since they do not consider the in-situ component. This study will examine samples from several ice cores from the Antarctic, including Vostok, the Dominion Range, McMurdo, South Pole, Allan Hills and the Adelie Coast.