Doctoral Dissertation Research: Effects of Glacial- Interglacial Climate Change on Mass Wasting, Southeastern Minnesota

9506564詹姆斯·C·诺克斯·约瑟夫·A·梅森威斯康星大学麦迪逊分校论文改进研究：冰期-间冰期气候变化对明尼苏达州东南部大规模浪费的影响这个项目将调查冰期-间冰期气候变化对明尼苏达州东南部上一次冰川时期靠近冰缘的部分山坡侵蚀过程的影响。研究结果应该适用于上密西西比河流域地形相似的更大范围。该项目将检验这样一种假设，即大规模消耗导致的大范围坡面侵蚀是由上一次冰期的永久冻土形成引发的，但在随后的间冰期气候条件下，大量消耗一直不活跃。放射性碳测年和其他方法将被用来确定过去大规模浪费事件的年代。这项研究的结果应该会加强对过去25,000年来密西西比河上游盆地沉积物运动和储存的大范围变化的解释。)

SBR-9506564 James C. Knox Joseph A. Mason University of Wisconsin at Madison Dissertation Improvement Research: Effects of Glacial-Interglacial Climate Change on Mass Wasting, Southeastern Minnesota This project will investigate the effects of glacial-interglacial climate change on processes of hillslope erosion in a part of southeastern Minnesota that was near the ice margin during the last glacial period. Study results should be applicable to a larger area of the Upper Mississippi Valley that is physiographically similar. The project will test the hypothesis that extensive slope erosion by mass wasting was triggered by permafrost formation during the last glacial period, but that mass wasting has been inactive under subsequent interglacial climatic conditions. Radiocarbon dating and other methods will be used to determine the chronology of past mass wasting episodes. The results of the study should enhance interpretation of large-scale changes in sediment movement and storage in the Upper Mississippi basin over the past 25,000 years. )