Selected publications


  • Last, F. M., Last, W. M., Fayek, M., and Halden, N. M., 2013. Occurrence and significance of a cold-water carbonate pseudomorph in microbialites from a saline lake. Journal of Paleolimnology (submitted).


  • Last, F. M. and Last, W. M., 2012. An overview of saline lake carbonates, the northern Great Plains of western Canada. Sedimentary Geology, vol 277-278, p. 1-31. (Invited Review Paper; Listed #2 in Top 25 Hottest Articles, Earth and Planetary Sciences, Elsevier).





  • Last, F. M., Last, W. M. and Halden, N.M. 2010 Carbonate microbialites and hardgrounds from Manito Lake, an alkaline, hypersaline lake in the northern Great Plains of Canada. Sedimentary Geology vol. 225, p. 34-49.






  • Last, W. M. and Ginn, F. M., 2009. Water chemistry of saline lakes of the Northern Great Plains, western Canada., Geochemical News Vol. 141


  • Last, W. M. and Ginn, F. M., 2009. Modern and late Holocene dolomite formation in a continental hypersaline lake, western Canada. Program and Abstracts Volume, 27th Annual Meeting of International Association of Sedimentologists, p. 34

  • Ginn, F. M. and Last, W. M., 2009. Manito Lake microbialites: a record of changing environment and climate in the northern Great Plains of western Canada. Program and Abstracts Volume, 27th Annual Meeting of International Association of Sedimentologists, p. 84.





  • Laird, K. R., Michels, A., Stuart, C. T., Wilson, S. E., Last, W. M., and Cumming, B. F., 2007. Examination of diatoms-based changes from a climatically sensitive prairie lake (Saskatchewan, Canada) at different temporal perspectives. Quaternary Science Reviews, volume 26, p. 3328-3343.



  • Last, W. M. and Ginn, F. M. 2005. Saline Systems of the Great Plains of Western Canada: an Overview of the Limnogeology and Paleolimnology. Saline Systems. 1:10 doi:10.1186/1746-1448-1-10 (Open Access; this paper has achieved the Highly Accessed status designated by the publisher).







  • Last, W. M., 2002. Little Manitou Lake Sedimentology and Paleolimnology. In Wolfe, S., Aitken, A., Dyck, I., and Walker, E. G. (Eds.) Holocene Geomorphology, Archeology, and Environmental Change in South-Central Saskatchewan. Field Trip Guide. GAC-MAC Saskatoon.


  • Campbell, I. D., Last, W. M., Campbell, C., Clair, S., McAndrews, J. H., and Edwards, T. W. D., 2000. The Late Holocene Paleohydrology of Pine Lake, Alberta: a Comparison of Proxy Types. Journal of Paleolimnology, vol. 25: 427-441.

  • Shang, Y. and Last, W. M., 2000. Geochemical and Hydrological Evolution of North Ingebright Lake Basin as Constrained by the Evaporite Mineral Sequence and Numerical Simulation. Abstracts Volume, GAC/MAC/CSPG Annual Meeting, Calgary.

  • Last, W. M.. 2000. Application of sulfate mineralogy and geochemistry in the salt minerals industry of western Canada: exploitation and management of lacustrine salt deposits, northern Great Plains. Geol. Assoc. Amer. Annual Meeting, Reno.

  • Shang, Y. and Last, W. M., 2000. Geochemical and Hydrological Evolution of North Ingebright Lake Basin as Constrained by the Evaporite Mineral Sequence and Numerical Simulation. Abstracts Volume, GAC/MAC/CSPG Annual Meeting, Calgary.

  • Vetter, M. A. , Last, W. M. and Sauchyn, D. J., 2000. Palynology and Lithostratigraphy of Deep Lake, Saskatchewan, Canada (The ‘Other’ Deep Lake). Abstracts Volume, 8th International Paleolimnology Symposium, Queen’s University, Kingston

  • Last, W. M., Vance, R. E. and Schütt, B., 2000. Oro Lake: the Holy Grail of Western Canada Paleolimnology? Abstracts Volume, 8th International Paleolimnology Symposium, Queen’s University, Kingston.

  • Greengrass, K., Last, W. M., Deleqiat, J., and Sukhan, S., 1999. Waldsea Lake revisited: another look at the recent history of one of western Canada’s best-studied meromictic lakes. Prairie Perspectives, vol. 2, p. 89-115. pdf

  • Last, W. M. 1999. Salt Lake Geolimnology. In: Lemmen, D. S. and Vance, R. E. (Editors), Holocene Climate and Environmental Changes in the Palliser Triangle, Southern Canadian Prairies: Geological Survey of Canada Bulletin 534, 23-55. pdf

  • Shang, Y. and Last, W. M., 1999. Mineralogy, lithostratigraphy and inferred geochemical history of North Ingebright Lake, Saskatchewan, Canada. In: Lemmen, D. S. and Vance, R. E. (Editors), Holocene Climate and Environmental Changes in the Palliser Triangle, Southern Canadian Prairies: Geological Survey of Canada Bulletin 534, 95-110. pdf

  • Aitken, A. E., Last, W. M., and Burt, A. K. 1999. Late Pleistocene Holocene landscape evolution at the Andrew's site near Moose Jaw, southwestern Saskatchewan. In: Lemmen, D. S. and Vance, R. E. (Editors), Holocene Climate and Environmental Changes in the Palliser Triangle, Southern Canadian Prairies: Geological Survey of Canada Bulletin, 534, 173-182. pdf

  • Leavitt, P. R., Vinebrooke, R. D., Wilson, S. E. Vance, R. E., Hall, R. I., Smol, J. P., and Last, W. M. 1999. Multiproxy record of Prairie lake response to climatic change and human activity: Clearwater Lake, Saskatchewan. In: Lemmen, D. S. and Vance, R. E. (Editors), Holocene Climate and Environmental Changes in the Palliser Triangle, Southern Canadian Prairies: Geological Survey of Canada Bulletin, 534, p. 125-138. pdf

  • Last, W. M., 1999. Rediscovering Salt Lakes of the Great Plains of Western Canada: What Advances Have We Made & What Challenges Do We Face in the New Millennium? Abstracts volume, Seventh International Conference on Salt Lakes, Death Valley, California. (invited presentation)

  • Last, W. M., and Vance, R. E., 1999, Oro Lake: the Holy Grail of Western Canada Paleolimnology? The Quaternary Evolution of One of Western Canada’s Longest Continuous Lacustrine Records. Abstracts volume, Seventh International Conference on Salt Lakes, Death Valley, California.

  • Last, W. M. 1999. Salt, Mud, and Climate: Discovering One of Western Canada’s Best Kept Secrets - Paleolimnology of the Northern Great Plains. CANQUA/CGRG Annual Meeting, Calgary, p.38 (invited presentation).

  • Last, W. M. and Vance, R. E. 1999. Oro Lake: the Holy Grail of Western Canada Paleolimnology? Lithostratigraphy & Mineralogy of One of Western Canada’s Longest Continuous Lacustrine Records CANQUA/CGRG Annual Meeting, Calgary, p. 37-38.

  • Last, W. M. 1999. Application of Quaternary Geoscience in the Salt Minerals Industry of Western Canada: Exploitation and Management of Lacustrine Evaporite Deposits, Northern Great Plains. CANQUA/CGRG Annual Meeting, Calgary, p.36-37.

  • Last, W. M., Deleqiat, J., Greengrass, K., and Sukhan, S.,1999 Holocene History and Evolution of the Brine System in Waldsea Lake, Saskatchewan CANQUA/CGRG Annual Meeting, Calgary, p. 35-36.

  • Deleqiat, J., Last, W. M., Greengrass, K., and Sukhan, S.,1999. Waldsea Lake, Saskatchewan: the Recent History of One of Western Canada’s Best Studied Mermomictic Lakes. Abstracts Volume, 2nd International Congress of Limnogeology, Brest, France, p. p14.

  • Last, W. M., and Vance, R. E., 1999. Oro Lake: Lithostratigraphy and Mineralogy of One of Western Canada’s Longest Continuous Lacustrine Stratigraphic Sequences. Abstracts Volume, 2nd International Congress of Limnogeology, Brest, France, p. p. 29-30.

  • Last, W. M., 1998. Stop 1: Little Manitou Lake. In: Aitken, A. (ed.) PCAG’98 Field Trip Guide, Canadian Assoc. Geographers, p. 4-10. pdf


  • Last, W. M., Vance, R. E., Wilson, S., and Smol, J. P., 1998. A multi-proxy limnologic record of rapid early-Holocene hydrologic change on the Northern Great Plains, southwestern Saskatchewan, Canada. The Holocene, vol. 8, p. 503-520. pdf

  • Last, W. M., 1998. The industrial minerals of the salt lakes: a ‘renewable’ prairie resource? Abstracts volume, North American Applied Limnology Society (Invited presentation).

  • Campbell, I., Campbell, C., Last, W. M., 1998. Pine Lake Paleolimnology. Abstracts volume, North American Applied Limnology Society.

  • Greengrass, K., Sukhan, S., Delqiat, J., and Last, W. M., 1998. Waldsea Lake Revisited. Proceedings with Abstracts, Annual Meeting of Prairie Geographers Association of Canada.

  • Last, W. M., and Vance, R. E., 1998. Paleoclimate on the Northern Great Plains: the conversation. Geological Society of America, Annual Meeting, Abstracts with Program.

  • Last, W. M., 1998. Salt and Mud of the Prairies: A look at the Use and Misuse of saline lakes in paleoenvironmental and paleoclimatic reconstructions in western Canada. Proceedings with Abstracts, Annual Meeting of Prairie Geographers Association of Canada, (invited presentation).

  • Vance, R. E., Last, W. M., and Smith, A. J., 1997. Hydrologic and climatic implications of a multidisciplinary study of late Holocene sediment from Kenosee Lake, southeastern Saskatchewan, Canada. Journal of Paleolimnology, vol. 18, p. 365-393.


  • Lemmen, D.S., Vance, R. E., Wolfe, S. A., and Last, W. M., 1997. Impacts of future climate change on the southern Canadian prairies: a paleoenvironmental perspective. Geoscience Canada, vol. 24, p. 121-133. pdf



  • Last, W. M., 1996. Salt Lakes. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. Guidebook for the Canadian Geomorphology Research Group Field Trip, p. 18-20. pdf

  • Vance, R. E. and Last, W. M., 1996. Oro Lake. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. Guidebook for the Canadian Geomorphology Research Group Field Trip, p. 26-27. pdf

  • Last, W. M., 1996. Willow Bunch Lake. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. Guidebook for the Canadian Geomorphology Research Group Field Trip, p. 28-29. pdf

  • Last, W. M. and R. E. Vance, 1996. Antelope Lake. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. Guidebook for the Canadian Geomorphology Research Group Field Trip, p. 42-43. pdf

  • Last, W. M. and Y. Shang, 1996. Ingebright Lake. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. Guidebook for the Canadian Geomorphology Research Group Field Trip, p. 68-69. pdf

  • Last, W. M., 1996. Freefight Lake. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. Guidebook for the Canadian Geomorphology Research Group Field Trip, p. 70-72. pdf

  • Vance, R. E. and Last, W. M. 1996. Clearwater Lake. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. In: Lemmen, D. S. (Ed.) Landscapes of the Palliser Triangle. Guidebook for the Canadian Geomorphology Research Group Field Trip, p. 78-79. pdf

  • Shang, Y., and Last, W. M., 1996. Paleolimnology of North Ingebright Lake: Canada’s thickest Holocene terrestrial salt sequence. Geol. Assoc. Canada, Program with Abstracts, p. 85.

  • Last, W. M., 1996. Lithostratigraphy and mineralogy of Oro Lake, Saskatchewan. Can. Association of Geographers, Program with Abstracts, p. 130-131.

  • Last, W. M., & Y. Shang, 1996. Evaporite mineralogy and geochemistry: the essential link to paleochemistry of saline lakes in the northern Great Plains. Can. Association of Geographers, Program with Abstracts, p. 133-134.

  • Last, W. M., 1996. Late Holocene history of Freefight Lake, Saskatchewan. Can. Association of Geographers, Program with Abstracts, p. 129-130.

  • Shang, Y., & Last, W. M., 1996. Paleohydrology, geochemistry and sedimentology of North Ingebright Lake, Saskatchewan. Can. Association of Geographers, Program with Abstracts, p. 196-197.

  • Last, W. M., 1996. Salt, mud, and climate: a decade of saline lake paleolimnology in the northern Great Plains. Can. Assoc. Geographers, Program with Abstracts, p. 132-133. (invited keynote presentation)

  • Last, W. M., 1996. Early Holocene stratigraphy in Clearwater Lake, Saskatchewan. Can. Association of Geographers, Program with Abstracts, p. 127-128.

  • Last, W. M., 1995. Evolution of saline lakes in western Canada. In: Climate, Landscape, and Vegetation Change in the Canadian Prairie Provinces (eds.: I. D. Campbell, C. Campbell, D. Lemmen, and B. Vance), p. 55-64. pdf

  • Last, W. M., 1995. Evolution of salt lakes in western Canada. Climate, Landscape, and Vegetation Change, Program with Abstracts, p. 14. (invited presentation)

  • Last, W. M., Vance, R. E., and Lemmen, D.S., 1995. Sedimentology and paleoenvironmental records of saline lakes in the Canadian Prairies. CANQUA Annual Meeting, p. 32.

  • Last, W. M. and Shang, Y., 1995. Saline lacustrine giants of the northern Great Plains. Geol. Soc. Amer. Vol. 27, # 3, p. 68.

  • Smith, A. J., Vance, R. E., and Last, W. M., 1995. Paleohydrologic implications of a multidisciplinary study of late Holocene sediments from Kenosee Lake, Saskatchewan. Geol. Soc. Amer. Vol. 27, # 3, p. 86.

  • Last, W. M., 1995. Evolution of salt lakes in western Canada. Geol. Soc. Amer. Program with Abstracts.

  • Last, W. M., and Shang, Y., 1995. Evaporite Mineralogy of Ingebright North Lake cores. Final Report to Geological Survey of Canada. 45 p.



  • Vance, R. E., and Last, W. M., 1994. Paleolimnology and global change on the southern Canadian prairies. Current Research Geological Survey of Canada, 1994-B, p. 49-58. pdf


  • Last, W. M., 1994, Paleohydrology of Saline Playas in Western Canada: perspectives form Pallisers Triangle. In: Rosen, M. (ed.) Paleoclimate and Basin Evolution of Playa Systems, Geological Society of America Special Paper 289, pages 69-81. pdf


  • Sack, L. A., and Last, W. M., 1994. Geochemical indication of Late Holocene evolution of Little Manitou Lake, Saskatchewan. Amer. Assoc. Petrol. Geol. Abstracts with Program, p. 96.




  • Van Stempvoort, D. R., Edwards, T.W.D., Evans, M.S., and Last, W. M., 1993. Paleohydrology and paleoclimate records in a saline prairie lake core: mineral, isotope and organic indicators. Journal of Paleolimnology, vol. 8, p. 135-147.

  • Last, W. M., 1993. High resolution paleolimnology from salt lakes: finding the good in the bad. 6th International Paleolimnology Symposium Programme & Abstracts, p. 34. (invited keynote presentation)

  • Last, W. M., Vance, R. E., and Sauchyn, D. J., 1993. Contrasting limnological responses to Holocene climatic change in the northern Great Plains. 6th International Paleolimnology Symposium Programme & Abstracts, p. 36.


  • Last, W. M., 1992. Salt Lake Paleolimnology in the northern Great Plains: the Facts, The Fears, The Future. In: Roberts, R.D., and Bothwell, M.L. (eds.) Aquatic Ecosystems in Semi-Arid Regions, N.H.R.I. Symposium Series 7, Environment Canada, pp. 51-62. pdf

  • Last, W. M., 1992. Freefight Lake, Potential for High Resolution Paleolimnology from Canada's Deepest Saline Lake. 2nd Palliser Triangle Global Change Conference, Program with Abstracts, p. 11.

  • Sack, L. A., and Last, W. M., 1992. Sedimentology and Late Holocene evolution of Little Manitou Lake, Saskatchewan. 2nd Palliser Triangle Global Change Conference, Program with Abstracts, p. 20.

  • Last, W. M., 1991. Sedimentology, Geochemistry, and Evolution of Saline Lakes of the Northern Great Plains - Post-Conference Excursion Guidebook, International Conference on Sedimentary and Paleolimnological Records of Saline Lakes, Saskatoon, Canada, 386 pp.

  • Last, W. M., 1991. Sedimentology, Geochemistry and Evolution of Saline Lakes in the Saskatoon Area - Within-Conference Excursion Guidebook, International Conference on Sedimentary and Paleolimnological Records of Saline Lakes, Saskatoon, Canada, 192 pp.

  • van Stempvoort, D. R., Edwards, T. W. D., Evans, M. S., and Last, W. M., 1991. delta 18 O in aragonite from saline lake sediments as a potential record of climate. Chapman Conference Continental Isotopic Indicators of Climate Change. Am. Geophys. Union, Washington, DC, United States

  • Last, W. M., 1991, Deepwater Evaporite Mineral Formation on Lakes of Western Canada. Sedimentary Records of Modern and Ancient Saline Lakes, Abstracts Volume, p. 24.

  • Lyons, W.B., Hines, M.E., and Last, W. M., 1991, Sulfate reduction rates in sediments of salt lakes of differing chemistries: implications for organic carbon preservation. Sedimentary Records of Modern and Ancient Saline Lakes, Abstracts Volume p. 28.

  • Blackwell, B., Rutter, N.W., and Last, W. M., 1991, Amino acid racemization, diagenetic alteration, and paleoenvironmental indicators in Recent mammalian bones and teeth from saline lakes, Saskatchewan and Australia. Sedimentary Records of Modern and Ancient Saline Lakes, Abstracts Volume, p. 6.

  • Van Stempvoort, D.R., Edwards, T.W.D., Evans, M.S., and Last, W. M., 1991, Sedimentary aragonite isotopes as records of climate, saline Redberry Lake, Saskatchewan, Canada. Sedimentary Records of Modern and Ancient Saline Lakes, Abstracts Volume, p. 48.



  • Last, W. M., 1990, Paleolimnology of Salt Lakes: The Facts, The Fears, The Future Abstracts Volume, Aquatic Ecosystems in SemiArid Regions. (Invited keynote speaker)

  • Last, W. M., 1990. Freefight Lake Sedimentology and Geochemistry. Final Report to University of New Hampshire. 412 p.

  • Last, W. M., 1990, Mineralogy of Redberry Lake Core. Final Report to NHRI, 22 p.



  • Last, W. M., 1989, Salt Lakes of Western Canada: A Spatial and Temporal Geochemical Perspective. Proceedings of the Symposium on Water Management Affecting the Wet-to-Dry Transition: Planning at the Margins, Water Studies Institute, Saskatoon, 99-114. pdf

  • Blackwell, B., Last, W. M., and Rutter, N.W., 1989. Features of Rapid Mineralogical and Organic Diagenesis in Recent Mammalian Fossils from Saline Lakes in Saskatchewan and Australia. Geol. Assoc. Can. program with Abstracts, 14, p. A113.


  • Last, W. M., and Slezak, L.A., 1988, The Salt Lakes of Western Canada. In: Melack, J.M. (ed.), Saline Lakes, Developments in Hydrobiology 44, 301-316. (republication of Hydrobiologia, vol. 158). pdf

  • Slezak, L.A., and Last, W. M., 1988, Sedimentology and Geochemistry of Freefight Lake, Saskatchewan, Western Inter-University Geological Conference, Program and Abstracts, p. 45.

  • Last, W. M., and Slezak, L.A., 1988, Modern Carbonate and Evaporite Sedimentology of an Unusual Deep, Saline Lake in the Great Plains of Western Canada. Geol. Soc. Amer. Abstracts with Program, 20, No. 7. (invited presentation)

  • Blackwell, B., and Last, W. M., 1988, Evidence for Rapid Mineralogical and Organic Diagenesis in Recent Mammalian Bones and Teeth from Saline Lakes in Saskatchewan and Australia. Geol. Soc. Amer. Abstracts with Program, 20, No. 7.

  • Last, W. M., 1988, Saline Lake Paleolimnology in Western Canada: The Facts, the Fears, and Future. Abstracts Volume, The Palliser Triangle Mosaic: Spatial and Temporal Aspects of a Region.

  • Last, W. M., 1988, Applied Evaporite Mineralogy Its Role in the Salt Industry of Saskatchewan. Applied Mineralogy Symposium, Western Inter University Geological Conference, Program and Abstracts, p. 21.

  • Last, W. M., 1988, Salt Lakes of Western Canada: A Spatial and Temporal Geochemical Perspective. Prairie and Northern Region Symposium, Canadian Plains Research Center. Symposium on Water management affecting the wet to dry transition. (invited presentation)


  • Last, W. M., and Slezak, L.A., 1987, Geolimnology of an Unusual Saline Lake in the Great Plains of Western Canada. In: Chivas, A.R. and DeDeckker, P. (eds.), SLEADS Workshop 87, 9-11. pdf

  • Last, W. M., and Slezak, L.A., 1987, Sodium Sulfate Deposits of Western Canada: Geology, Mineralogy, and Origin. In: Gilboy,, C.F. and Vigrass, L.W. (eds.), Economic Minerals of Saskatchewan. Saskatchewan Geological Society Special Publication 8, 197-205. pdf

  • Last, W. M., 1987. Sedimentology, Geochemistry, and Evolution of Salikne Lakes of the Northern Great Plains, Western Canada. Field Tour and Field Seminar Notes. University of Manitoba, Department of Geological Sciences, 382 pp.

  • Last, W. M., 1988, Paleohydrology and Paleochemistry of a Saline Playa in Western Canada. 6th SLEADS Conference, Abstracts Volume.

  • Last, W. M. and Slezak, L. A., 1987. Salt Lake Paleolimnology of the Northern Great Plains Region An Overview. INQUA XII International Congress, Program with Abstracts, p. 207.

  • Last, W. M. and Slezak, L. A., 1987, Continental Brines and Evaporites of the Great Plains of Western Canada. GACMAC Prog. with Abstracts, v. 12, p. 66.

  • Slezak, L. A. and Last, W. M., 1987, Evaporites of Freefight Lake, Saskatchewan. GACMAC Prog. with Abstracts, v. 12, p. 90.
  • Slezak, L. A. and Last, W. M., 1987, Organic Matter Production and Preservation in Freefight Lake, Saskatchewan. GACMAC Prog. with Abstracts, v. 12, p. 90.

  • Last, W. M., and Slezak, L.A., 1986, Paleohydrology, Sedimentology, and Geochemistry of Two Deep Saline Lakes from Southern Saskatchewan. Geographie physique et Quaternairaire, vol. 40: 5-15. pdf

  • Last, W. M. and Slezak, L. A., 1986, Sodium Sulfate Deposits of Western Canada: Geology, Mineralogy, and Origin. Sask. Geol. Soc. Economic Minerals of Saskatchewan Proc. (invited presentation).

  • Last, W. M., 1986, Brines and Evaporites of the Northern Great Plains. 12th Internat. Sediment. Congress, Abstracts, p. 175.

  • Last, W. M. and Slezak, L. A., 1986, Sedimentology and Geochemistry of a Saline Playa in the Northern Great Plains. 12th Internat. Sediment. Congress, Abstracts, p. 175.

  • Last, W. M. and Kovac, L., 1986, Geochemistry and Stratigraphy of Cretaceous Oil Shales of Central Canada. 12th Internat. Sediment. Congress, Abstracts, p. 175.

  • Last, W. M., 1986, Geochemistry and Early Diagenesis of Lacustrine Sediments from the Northern Great Plains (invited lecture). In Rodriguez Clemente, R. and Fenoll H.A. (eds.), Geochemistry of the Earth Surface and Processes of Mineral Formation, p. 195.



  • Last, W. M., 1985, Saline Lakes of Western Canada A Paleolimnological Overview. Abstracts with Program, 3rd SIL Internat. Symposium on Saline Lakes, p. 13.

  • Slezak, L. A., and Last, W. M., 1985, Paleoclimate and Paleohydrology of Saline Lakes: Implications for Modern Studies in the Northern Great Plains. Program with Abstracts, CANQUA Meeting, Lethbridge, p. 59.

  • Last, W. M., and Slezak, L. A., 1985, Paleohydrology and Geochemistry of Deep Saline Lakes from Southern Saskatchewan. Program with Abstracts, CANQUA Meeting, Lethbridge, p. 37.

  • Slezak, L. A., and Last, W. M., 1985, The Saline Lakes of the Northern Great Plains of North America Potential Petroleum Source Rocks? Programme and Abstracts IGCP Project 219 Lacustrine Petroleum Source Rocks Meeting, London.

  • Last, W. M., 1985, A review of Paleoclimatic Investigations of salt lakes in western Canada. Proc. Internat. Salt Lake Symposium, Kenya, p. 7.

  • Slezak, L. A., and Last, W. M., 1985, Geochemical Controls on Water Chemistry of Prairie Saline Lakes. Proc. Plains Aquatic Research Conf., p. 9.

  • Last, W. M., 1985, Geology of Sodium Sulfate Deposits in the Plains of Western Canada. In: Research Agreements Program Progress Summary, Energy, Mines and Resources Canada, p. 105.


  • Last, W. M., and Slezak, L. A., 1984, A Sedimentological Overview of Ceylon Lake, Saskatchewan. Geol. Assoc. Canada Program with Abstracts, v. 9, p. 82.

  • Slezak, L. A., and Last, W. M., 1984, Geology of Sodium Sulfate Deposits of the Northern Great Plains. Proc. Internat. Symp. on Industrial Minerals, p. 24.

  • Lockhart, E. B., and Last, W. M., 1984, Sedimentology and Geochemistry of a Small Salt Playa in Southern Saskatchewan. Geol. Assoc. Canada Program with Abstracts, v. 9, p. 84.

  • Last, W. M., 1984, Geology of Sodium Sulfate Deposits in the Plains of Western Canada. In: Research Agreements Program Progress Summary, Energy, Mines and Resources Canada, p. 113.


  • Schweyen, T. H., and Last, W. M., 1983, Sedimentology and Paleohydrology of Waldsea Lake, Saskatchewan. In Scott, M. D. (ed.), Canadian Plains Proceedings, vol. 11, p. 45-59. pdf

  • Last, W. M., and Schweyen, 1983, Sedimentology and Geochemistry of Saline and Hypersaline Lakes of the Great Plains. In: Hammer, U. T. (ed.) Saline Lakes. W. Junk, The Hague, p. 245-263 (republication of Hydrobiologia, vol. 105). pdf

  • Last, W. M., Schweyen, T. H., and Egan, D. M., 1983, Sedimentology, Geochemistry, and Stratigraphy of The Saline and Hypersaline Lakes of The Canadian Great Plains. Final Project Report to Max Bell Foundation, 211 pages. (In addition, a total of 5 interim reports were generated totaling 140 pp).

  • Last, W. M., 1983, Sedimentology and Geochemistry of Little Manitou Lake, Saskatchewan, Report to Mayor/Municipal Council, Watrous, Saskatchewan. 21 pages.

  • Last, W. M., 1982, Nearsurface processes in playa lakes in southern Saskatchewan. Second SIL Internat. Symp. on Inland Saline Lakes Proc., p. 12.

  • Last, W. M., Egan, M., and Schweyen, T. H., 1982, Evaporitic Lacustrine Environments of the Canadian Plains. Amer. Assoc. Petrol. Geol. Bull. v. 66, p. 592.

  • Egan, D. M., and Last, W. M., 1982, The Effect of Chemical and Mineralogical Equilibrium on Two Saline Lakes in Saskatchewan. Geol. Assoc. Canada, Program with Abstracts v. 7, p. 47.

  • Schweyen, T. and Last, W. M., 1982, Saline and Hypersaline Lakes of the Great Plains. Geol. Assoc. Canada Program with Abstracts, v. 7, p. 80.

  • Last, W. M., 1982, Sedimentary Processes and Products in the Saline Lakes of the Northern Great Plains. Geol. Soc. Amer. Abst. v. 15, p. 645.

  • Last, W. M., 1982, Sedimentology and Paleochemistry of Waldsea Lake, Saskatchewan. Report to Provincial Park Committee, Humboldt, Saskatchewan, 28 pages.