Abstract
Sedimentary processes were monitored in a varved lake in the Canadian High Arctic through three melt seasons and revealed that seasonal sediment deposition rates were highly dependent on short-lived inflow events driven by high suspended sediment concentrations that varied with runoff intensity. Our results illustrate that in accordance with the suspended sediment discharge into the lake, the rate of sediment accumulation changed over short distances down-lake, in a given year. This result indicates that there is a rate and accumulation dependence on short-lived, intense inflow conditions. In addition, there was strong evidence for substantial decoupling between deposition rate and mean grain size of sedimentary deposits. These results have important implications for paleoclimate interpretation of annually laminated sedimentary records from dynamic lake environments and suggest that grain size measures may not be representative proxies of inflow competence. Grain size indices based on a measure of the coarser fraction, rather than the bulk sediment, may be more appropriate to use as a link between contemporary runoff processes and sedimentary characteristics.
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References
Braun C, Hardy D, Bradley R, Retelle M (2000) Streamflow and suspended sediment transfer to Lake Sophia, Cornwallis Island, Nunavut, Canada. Arct Antarct Alp Res 32:456–465
Cockburn JMH, Lamoureux SF (in press) Hydroclimate controls over seasonal sediment yield in two adjacent High Arctic watersheds. Hydrol Process. doi:10.1002/hyp.6798
Evans DJA, Benn DI (2004) A practical guide to the study of glacial sediments. Arnold Publishers, London, 266 pp
Forbes AC, Lamoureux SF (2005) Climatic controls on streamflow and suspended sediment transport in three large Middle Arctic catchments, Boothia Peninsula, Nunavut, Canada. Arct Antarct Alp Res 37:304–315
Francus P, Bradley RS, Abbott MB, Patridge W, Keimig F (2002) Paleoclimate studies of minerogenic sediments using annually resolved textural parameters. Geophys Res Lett 29. doi:10.1029/2002GL015082
Gilbert R (1975) Sedimentation in Lillooet Lake, British Columbia. Can J Earth Sci 12:1697–1711
Gilbert R, Butler RD (2004) The physical limnology and sedimentology of Meziadin Lake, northern British Columbia, Canada. Arct Antarct Alp Res 36:33–41
Hardy DR, Bradley RS, Zolitschka B (1996) The climate signal in varved sediments from Lake C2, northern Ellesmere Island, Canada. J Paleolimnol 16:227–238
Hodder KR, Gilbert RE, Desologes JR (2007) Glaciolacustrine sediment as an alpine hydroclimate proxy. J Paleolimnol 38:365–394
Hodgson DA, Vincent JS (1984) A 10,000 yr B.P. extensive ice shelf over Viscount Melville Sound, Arctic Canada. Quat Res 22:18–30
Lambert A, Giovanoli F (1988) Records of riverborne turbidity currents and indications of slope failures in the Rhone delta of Lake Geneva. Limnol Oceanogr 33:458–468
Lamoureux SF (1999) Catchment and lake controls over the formation of varves in monomictic Nicolay Lake, Cornwall Island, Nunavut. Can J Earth Sci 36:1533–1546
Lamoureux SF (2000) Five centuries of interannual sediment yield and rainfall-induced erosion in the Canadian High Arctic recorded in lacustrine varves. Water Resour Res 36:309–318
Lamoureux SF (2002) Temporal patterns of suspended sediment yield following moderate to extreme hydrological events recorded in varved lacustrine sediments. Earth Surf Pro Land 27:1107–1124
Lamoureux SF, Gilbert R (2004) A 750-year record of autumn snowfall and temperature variability and winter storminess recorded in the varved sediments of Bear Lake, Devon Island, Arctic Canada. Quat Res 61:134–147
Lamoureux SF, McDonald DM, Cockburn JMH, Lafrenière MJ, Atkinson DM, Treitz P (2006) An incidence of multi-year sediment storage on channel snowpack in the Canadian High Arctic. Arctic 59:381–390
Lemmen DS, Gilbert R, Smol JP, Hall RI (1988) Holocene sedimentation in glacial Tasikutaaq Lake, Baffin Island. Can J Earth Sci 25:810–823
Leonard EM (1997) The relationship between glacial activity and sediment production: evidence from a 4450-year varve record of Neoglacial sedimentation in Hector Lake, Alberta, Canada. J Paleolimnol 17:319–330
Lewis T, Gilbert R, Lamoureux SF (2002) Spatial and temporal changes in sedimentary processes at proglacial Bear Lake, Devon Island, Nunavut, Canada. Arct Antarct Alp Res 34:119–129
Lewkowicz A, Wolfe P (1994) Sediment transport in Hot Weather Creek, Ellesmere Island, NWT, Canada, 1990–1991. Arct Antarct Alp Res 26:213–226
McDonald DM (2007) Hydroclimatic influences on suspended sediment delivery in a small, High Arctic catchment. Unpublished Master’s Thesis, Geography, Queen’s University, Kingston, Ontario, p 166
Menounos B, Schiefer E, Slaymaker O (2006) Nested temporal-scale sediment yields, Green Lake Basin, British Columbia, Canada. Geomorphology 79:114–129
Retelle MJ, Childs JK (1996) Suspended sediment transport and deposition in a high arctic meromictic lake. J Paleolimnol 16:151–167
Ross J, Gilbert RE (1999) Lacustrine sedimentations in a monsoon environment: the record from Phewa Tal, middle mountain region of Nepal. Geomorphology 27:307–323
Schiefer E (2006a) Contemporary sedimentation rates and depositional structures in a montane lake basin, southern Coast Mountains, British Columbia, Canada. Earth Surf Proc Land 31:1311–1324
Schiefer E (2006b) Depositional regimes and areal continuity of sedimentation in a montane lake basin, British Columbia, Canada. J Paleolimnol 35:617–628. doi:10.1007/s10933-005-5265-0
Schiefer E, Menounos B, Slaymaker O (2006) Extreme sediment delivery events recorded in the contemporary sediment records of a montane lake, southern Coast Mountains, British Columbia. Can J Earth Sci 43:1777–1790
Smith ND (1978) Sedimentation processes and patterns in a glacier-fed lake with low sediment input. Can J Earth Sci 15:741–756
Smith ND, Ashley GM (1985) Proglacial lacustrine environment. In: Ashley GM, Shaw J, Smith ND (eds) Glacial sedimentary environments, Society of Paleontologists and Mineralogists, Short Course No. 16. Tulsa, Oklahoma, pp 135–215
Sturm M (1979) Origin and composition of clastic varves. In: Schlüchter C (ed) Moraines and varves: proceedings of INQUA symposium on genesis and lithology of quaternary deposits, Zurich, 1978. Balkema, Rotterdam, Holland, pp 281–285
Sundborg Å, Calles B (2001) Water discharges determined from sediment distributions: a palaeohydrological method. Geogr Ann 83A:39–54
Walker DA, Raynolds MK, Daniëls FJA, Einarsson E, Elvebakk A, Gould WA, Katenin AE, Kholod S, Markon CJ, Melnikov ES, Moskalenko NG, Talbot SS, Yutsev BA, the other members of the CAVM Team (2005) The circumpolar Arctic vegetation map. J Veg Sci 16:267–282
Yang D, Woo M-k (1999) Representativeness of local snow data for large scale hydrologic investigations. Hydrol Process 13:1977–1988
Acknowledgements
This work was supported by National Science and Engineering Research Council of Canada (NSERC), ArcticNet, and Ontario PREA awards to SFL, and Northern Scientific Training Programme (NSTP) and Queen’s Graduate Awards to JMHC. We would also like to thank the Polar Continental Shelf Project (PCSP), Natural Resources Canada for their comprehensive field logistics support at Cape Bounty. Field assistance by D. McDonald, K. Stewart, A. Forbes, G. Hambley, E. Wells, K. Chutko, J. Tomkins, D. Atkinson, P. Treitz, J. Wall, F. Forsythe, M. Lafrenière, B. McLeod, P. Francus and S. Cuven are gratefully acknowledged. This is PCSP contribution number # 041-07.
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Cockburn, J.M.H., Lamoureux, S.F. Inflow and lake controls on short-term mass accumulation and sedimentary particle size in a High Arctic lake: implications for interpreting varved lacustrine sedimentary records. J Paleolimnol 40, 923–942 (2008). https://doi.org/10.1007/s10933-008-9207-5
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DOI: https://doi.org/10.1007/s10933-008-9207-5