CGRG Bibliography of Canadian Geomorphology
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Author : Butler, R.D.
Date : 2001.
Title : The physical limnology and sedimentology of montane Meziadin Lake, northern British Columbia, Canada.
Publication : Unpublished M.Sc. thesis. Queen's University at Kingston.
Issue :
Page(s) : 169 p.
Abstract
Meziadin Lake, British Columbia, Canada (56.5°N; 129.2°W) demonstrates physical processes and sedimentary fill comparable to other fjord lakes of the Canadian Cordillera. Fieldwork was carried out on site from May 20 to August 10, 1999 to examine lake and basin responses to meteorological forcing, limnologic circulation, turbidity current frequency and duration, and sediment distribution patterns and rates of accumulation. The discharge hydrograph for the gauged portion of inflow to Meziadin Lake peaked on June 16 in response to a significant rise in air temperature. Temperature-Conductivity-Turbidity profiles illustrate dominant control of lacustrine circulation by inflowing water masses, development of weak thermal stratification, and Coriolis deflection of interflowing plumes. A submerged temperature logger in the delta proximal region recorded the passage of 2 types of underflow events as positive temperature anomalies. Eleven sediment-trap moorings were deployed, covering the geographical extent of the lake, recording significant proximal/distal, and north/south trends in Mass Accumulation Rate (MAR). Proximal trap moorings and Ekman grab samples recorded laminae with bimodal particle size distribution that were determined to be varves.
Bibliography of Canadian Geomorphology