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University of Arkansas

This thesis presents a 15 ka record of Holocene paleolimnological change from Greyling Lake (61.4 degree N, 145.7 degree W, 1015 m asl), a proglacial lake in the Chugach Mountains of south-central Alaska. Fluctuations in paleolimnological conditions were reconstructed through the analysis of fossil diatom assemblages preserved within a sediment core taken from the central lake basin. The composition of diatom communities, together with physical and chemical proxies (magnetic susceptibility, bulk density, grain size, and organic matter), were used in the reconstruction. As a proglacial lake, Greyling Lake provides a record of paleoclimate change in southern Alaska through the erosive characteristics of nearby glaciers....
The Alaska Peninsula, Alaska, is the home of three major historic hunter-gatherer cultures--the Alutiit, the Central Yup'ik, and the Unangan. Regional questions pertaining to the subsistence-settlement patterns of the late prehistoric and historic inhabitants of the central Alaska Peninsula have not yet been fully entertained. At the same time, the region holds excellent potential for answering important questions about subsistence strategies and places. This dissertation examines the archaeological, ethnographic, and environmental record bearing on the lifeways of the people of the central Alaska Peninsula during the past 1,000 years. The primary focus is on creating and testing predictive models of subsistence-settlement...
This thesis presents a 15 ka record of Holocene paleolimnological change from Greyling Lake (61.4 degree N, 145.7 degree W, 1015 m asl), a proglacial lake in the Chugach Mountains of south-central Alaska. Fluctuations in paleolimnological conditions were reconstructed through the analysis of fossil diatom assemblages preserved within a sediment core taken from the central lake basin. The composition of diatom communities, together with physical and chemical proxies (magnetic susceptibility, bulk density, grain size, and organic matter), were used in the reconstruction. As a proglacial lake, Greyling Lake provides a record of paleoclimate change in southern Alaska through the erosive characteristics of nearby glaciers....
This thesis presents a 15 ka record of Holocene paleolimnological change from Greyling Lake (61.4 degree N, 145.7 degree W, 1015 m asl), a proglacial lake in the Chugach Mountains of south-central Alaska. Fluctuations in paleolimnological conditions were reconstructed through the analysis of fossil diatom assemblages preserved within a sediment core taken from the central lake basin. The composition of diatom communities, together with physical and chemical proxies (magnetic susceptibility, bulk density, grain size, and organic matter), were used in the reconstruction. As a proglacial lake, Greyling Lake provides a record of paleoclimate change in southern Alaska through the erosive characteristics of nearby glaciers....
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