Sulfate yields and isotopic ratios of sulfate sulfur in rivers of the Northwest Territories,Canada |
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| Affiliation: | 1. Great Lakes Institute for Environmental Research, University of Windsor, 401 Sunset Ave, Windsor, Ontario N9B 3P4, Canada;2. Ontario Ministry of Natural Resources and Forestry, Aquatic Research and Monitoring Section, 320 Milo Road, Wheatley, Ontario N0P 2P0, Canada;1. Department of Biology, Northern Michigan University, Marquette, MI 49855, United States of America;2. Department of Biological Sciences, University of Notre Dame, Notre Dame, IN 46556, United States of America;3. Aquatic Research Lab, Lake Superior State University, Sault Ste. Marie, MI 49783, United States of America;4. School of Natural Resources and Environment, Lake Superior State University, Sault Ste. Marie, MI 49783, United States of America;1. CSRA, 1359 W. Elmdale Ave. Suite 2, Chicago, IL 60660, USA;2. CSRA and Department of Earth and Environmental Sciences, University of Illinois at Chicago, 845 W. Taylor St., Chicago, IL 60607, USA;3. USEPA Great Lakes National Program Office, 77 W. Jackson Boulevard, Chicago, IL 60604, USA;4. Department of Natural Resources, Cornell University Biological Field Station, 900 Shackelton Point Road, Bridgeport, NY 13030, USA;5. Natural Resources Research Institute, University of Minnesota Duluth, 5013 Miller Trunk Hwy, Duluth, MN 55811, USA;6. Great Lakes Center, Buffalo State College, Buffalo, NY, USA;1. Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON, Canada;2. Department of Wildlife, Fisheries and Aquaculture, Mississippi State University, Mississippi, MS, USA;3. Department of Environmental and Forestry Biology, State University of New York, Syracuse, NY, USA;4. Ontario Ministry of Natural Resources and Forestry, Glenora Fisheries Station, Picton, ON, Canada;5. U.S. Geological Survey, Lake Ontario Biological Station, Oswego, NY, USA |
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| Abstract: | Rivers in the Northwest Territories draining the Canadian Shield in the zone of continuous permafrost have sulfate yields ranging from 3 to 6 meq m−2 yr−1. Stable isotope ratios of sulfate sulfur from these rivers range from −0.91 to +7.01%. The negative value obtained for the Quoich River may indicate the presence of reduced sulfur compounds in its watershed. Results for the Tree. Ellice and Back Rivers may have been influenced by seasalt. Results for the other rivers are very similar to those obtained for surface waters at lower latitudes (47°N), indicating that the processes affecting the isotopic ratios of sulfate sulfur in surface waters operate similarly at 65°N and at 47°N. |
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