Phololuminescence Studies of Modern & Pleistocene Lacustrineand Near-shore Marine Sediments from Spitsbergen: A Potential New Geochronometer for Arctic Waterlain Sedime

很明显，我们需要发展一种 可以提供可靠时序控制的技术， 沉积在极地海洋和湖泊环境中的沉积物 第四纪中晚期。 该奖项支持A 一系列的基本调查，以确定效用 新兴的光致发光（PL）技术，以日期水帘 沉积物 PL的能量选择性分析可能 提供了一种适用范围广、精度高的地质年代计。 具体来说，这些实验将测试准确性， 光致发光技术测定湖泊和近岸年代的精度 斯匹次卑尔根群岛和斯瓦尔巴群岛的海洋沉积物。 沉积物 研究选择的是现代或放射性碳年代测定的沉积物 从暴露或核心的沉积在最后一个CA。 一万两千年。 这些沉积物来自于各种各样的水 沉积环境和拟议的研究应提供 一致的结果，以评估的承诺和限制， PL技术。 该项目代表了PALE的一个要素 （古气候形成北极湖泊和河口）活动。

There is a clear need for the development of a dating technique that can provide reliable chronologic control for sediments deposited in polar marine and lacustrine environments during the late and middle Quaternary. This award supports a series of fundamental investigations to ascertain the utility of the emerging photoluminescence (PL) technique to date waterlain sediments. The energy selective analysis of PL potentially could supply a widely applicable and accurate geochronometer. Specifically, these experiments will test the accuracy and precision of the PL technique to date lacustrine and near-shore marine sediments from Spitsbergen, Svalbard. The sediments chosen for study are either modern or radiocarbon dated sediments from exposures or cores that were deposited during the last ca. 12 thousand years. These sediments are from a variety of aqueous sedimentary environments and the proposed research should provide coherent results to evaluate the promises and limitations of the PL technique. This project represents one element of the PALE (Paleoclimates form Arctic Lakes and Estuaries) activity.