Multiparameter Investigation of a Deep, Pre-Late Wisconsin Bog in the Central Sierra Nevada, California

这一奖项是为了表彰一个项目，该项目涉及对内华达冰川山脉中心一个深厚的、长期存在的沼泽中的沉积物进行取芯和初步分析。该沼泽在北美西部是独一无二的，因为它的山脉位置、深度和保存沉积物的潜力，这些沉积物可以追溯到最后一次冰川周期(约70,000-120,000年)的大部分时间(如果不是整个的话)。这个位置特别重要，因为沼泽应该记录沉积学、斜坡稳定性、沉积物地球化学、古地磁和古生态的变化，在这个环境中，到目前为止，还没有产生超过最后一次冰川最大时期(~20000年B.P.)的连续记录。研究人员建议钻穿沼泽中的Tioga排泄物，进入下面的沉积物，恢复连续的岩心。然后，他们将对岩心沉积物进行基本分析，并获得足够的放射性碳年龄，以证明沼泽可能存在的那种古气候记录。

This award is for a project that involves coring and initial analysis of sediments in a deep, long-lived bog in the heart of the glaciated Sierra Nevada. The bog is unique in western North America because of its mountain location, depth, and potential to preserve sediments that date through most if not the entire last glacial cycle (~70,000-120,000 years). The location is particularly crucial, because the bog should record changes in sedimentology, slope stability, sediment geochemistry, paleomagnetism, and paleoecology in an environment that heretofore has not yielded a continuous record that dates past the last glacial maximum (~20,000 year B.P.) The investigators propose to drill through the Tioga outwash in the bog and into the underlying sediments recovering continuous core. They will then do basic analyses of the core sediments and obtain enough radiocarbon ages to demonstrate the kind of paleoclimate record that is potentially available from the bog.