Holocene Glaciation of the Southern Kenai Mountains, Alaska

这项研究将调查最新的模式和时间 更新世冰消作用，特别是全新世气候 基奈冰川波动记录的变化 阿拉斯加西南部的半岛。 工作将集中在陆地上 冰川，这里缺乏不规则流动的证据， 可能会经历前进和后退的周期 类似于那些在阿拉斯加被广泛记录，但与 反映个人方面，位置和高度的变化。 在基奈峡湾国家公园， 对比之下，显示出长期的先进，其次是戏剧性的 海湾深度等因素控制的周期性后退， 形态、水循环和冰缘沉积 积累 冰碛物改性的评价以及 放射性碳定年法、火山灰年代学、地衣体记录法 和树木年代学，将被严格应用于建设 冰川年代学 因为大部分冰舌的末端 森林地区，树木年轮表面和选择性 活树与埋木的交叉年代测定可能是一种 特别强大的约会工具

This research will investigate the patterns and timing of latest Pleistocene deglaciation and particularly of Holocene climatic change as recorded in fluctuations of glaciers on the Kenai Peninsula, southwest Alaska. Work will focus in the landfast glaciers, which here lack evidence of irregular flow and which may be expected to have experienced cycles of advance and retreat similar to those that are widely recorded in Alaska, but with variations reflecting individual aspect, position and hypsometry. Calving outlet glaciers in the Kenai Fjords National Park, by contrast, have displayed prolonged advanced followed by dramatic retreat in cycles dominated by such factors as fjords depth and configuration, water circulation, and ice-marginal sediment accumulation. Evaluation of moraine modification as well as the methods of radiocarbon dating, tephrochronology, lichenomentry and dendrochronology, will be critically applied in building the glacial chronology. Because most of the ice tongues end in forested areas, tree-ring dating of surfaces and selective cross-dating of living trees with buried wood may be a particularly powerful dating tool.