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Fall 2016
The Alaska Highway through Southwestern Yukon is located in the discontinuous permafrost zone with many areas of the highway corridor associated with degrading permafrost. Given the strategic value of the corridor, it is critical to have a clear understanding of permafrost characteristics and...
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Exploring the Past, Present, and Future of Predator-Prey Interactions Between Crabs and Their Gastropod Prey
DownloadSpring 2020
Interactions between predators and prey play an important role in structuring their communities and shaping evolution. However, human-induced climate change has the potential to influence both predators and prey and disrupt their interactions. The fossil record provides an enormous resource to...
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Spring 2013
In this dissertation, tephrostratigraphy is used as the central method to address issues of chronology in the late Quaternary sedimentary record of eastern Beringia (non-glaciated Yukon and Alaska) at a variety of spatial and temporal scales. The Palisades, central Alaska, preserves...
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Spring 2014
The mapping and dating of surficial glacial landforms and sediments across southern Banks Island document glaciation by the northwest Laurentide Ice Sheet (LIS) during the last glacial maximum. Geomorphic landforms confirm the operation of an ice stream at least 1000 m thick in Amundsen Gulf that...
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Spring 2014
The Ironshore Formation, a Pleistocene limestone succession found on Grand Cayman, is formed of six unconformity-bounded units (A to F) that developed in response to transgressive-regressive cycles. Highstands led to deposition whereas lowstands led to diagenetic change in the earlier deposited...