Diatoms in Lake Sediments as Proxies of Climatic Variation Throughout the Latest HolocenePublic Deposited
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This thesis is composed of manuscripts investigating the impact of climate events throughout the past ~2800 years on conditions within the lacustrine environment of Pocket Lake as reflected in changes of diatom assemblage. The first manuscript presented in chapter 2 is composed of a broad, paleoclimatic reconstruction at a resolution of ~20-30 years per sample based on changes in diatom assemblage integrated with geochemical and particle size datasets from the same core. In the second chapter a high-resolution investigation into the impact of the deposition of airfall tephra into Pocket Lake is presented. Together, these studies provide insight into the impact of broader decadal scale climate cycles and instantaneous, episodic events allowing for a more comprehensive understanding of their impact on lakes in sensitive, northern locations. These reconstructions will help inform predications regarding the potential impact of 21st century climate change.
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- Copyright © 2019 the author(s). Theses may be used for non-commercial research, educational, or related academic purposes only. Such uses include personal study, research, scholarship, and teaching. Theses may only be shared by linking to Carleton University Institutional Repository and no part may be used without proper attribution to the author. No part may be used for commercial purposes directly or indirectly via a for-profit platform; no adaptation or derivative works are permitted without consent from the copyright owner.
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