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

该奖项是为一个项目，涉及在冰川内华达州的心脏深处，长期沼泽沉积物的取芯和初步分析。 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，即使不是整个末次冰期循环（约70，000 - 120，000年）。 位置是特别重要的，因为沼泽应该记录在沉积学，斜坡稳定性，沉积物地球化学，古地磁学和古生态学的变化，在一个环境中，迄今为止还没有产生一个连续的记录，日期过去的最后一次盛冰期（约20，000年B. P.）。 调查人员建议钻透沼泽中的Tioga冰水沉积物，并钻到下面的沉积物中，以获得连续的岩心。 然后，他们将对核心沉积物进行基本分析，并获得足够的放射性碳年龄，以证明沼泽中可能存在的古气候记录。

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.