caa a22 4500 445814381 CHVBK 20180317145221.0 cr unu---uuuuu 170323e20110201xx s 000 0 eng 10.1007/s10040-010-0628-7 doi (NATIONALLICENCE)springer-10.1007/s10040-010-0628-7 Geochemical heterogeneity in a small, stratigraphically complex moraine aquifer system (Ontario, Canada): interpretation of flow and recharge using multiple geochemical parameters [Elektronische Daten] [Randy Stotler, Shaun Frape, Humam El Mugammar, Craig Johnston, Ian Judd-Henrey, F. Harvey, Robert Drimmie, Jon Jones] Hétérogénéité géochimique dans un petit système aquifère de moraine stratigraphiquement complexe (Ontario, Canada) interprétation des écoulements et de la recharge au moyen de paramètres géochimiques multiples The Waterloo Moraine is a stratigraphically complex system and is the major water supply to the cities of Kitchener and Waterloo in Ontario, Canada. Despite over 30years of investigation, no attempt has been made to unify existing geochemical data into a single database. A composite view of the moraine geochemistry has been created using the available geochemical information, and a framework created for geochemical data synthesis of other similar flow systems. Regionally, fluid chemistry is highly heterogeneous, with large variations in both water type and total dissolved solids content. Locally, upper aquifer units are affected by nitrate and chloride from fertilizer and road salt. Typical upper-aquifer fluid chemistry is dominated by calcium, magnesium, and bicarbonate, a result of calcite and dolomite dissolution. Evidence also suggests that ion exchange and diffusion from tills and bedrock units accounts for some elevated sodium concentrations. Locally, hydraulic "windows” cross connect upper and lower aquifer units, which are typically separated by a clay till. Lower aquifer units are also affected by dedolomitization, mixing with bedrock water, and locally, upward diffusion of solutes from the bedrock aquifers. A map of areas where aquifer units are geochemically similar was constructed to highlight areas with potential hydraulic windows. Springer-Verlag, 2010 Heterogeneity nationallicence Hydrochemistry nationallicence Moraine nationallicence Regional groundwater nationallicence Canada nationallicence Stotler Randy Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, N2L 3G1, Ontario, Canada aut Frape Shaun Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, N2L 3G1, Ontario, Canada aut El Mugammar Humam Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, N2L 3G1, Ontario, Canada aut Johnston Craig Stantec Consulting Ltd., 49 Frederick St., N2H 6M7, Kitchener, ON, Canada aut Judd-Henrey Ian Saskatchewan Research Council, 125 - 15 Innovation Boulevard, S7N 2X8, Saskatoon, SK, Canada aut Harvey F. School of Natural Resources, University of Nebraska Lincoln, 113 Nebraska Hall, 901 17th St., 68588-0158, Lincoln, NE, USA aut Drimmie Robert Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, N2L 3G1, Ontario, Canada aut Jones Jon Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, N2L 3G1, Ontario, Canada aut Hydrogeology Journal Springer-Verlag 19/1(2011-02-01), 101-115 1431-2174 19:1<101 2011 19 10040 https://doi.org/10.1007/s10040-010-0628-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10040-010-0628-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Stotler Randy Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, N2L 3G1, Ontario, Canada aut NATIONALLICENCE 700 1- Frape Shaun Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, N2L 3G1, Ontario, Canada aut NATIONALLICENCE 700 1- El Mugammar Humam Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, N2L 3G1, Ontario, Canada aut NATIONALLICENCE 700 1- Johnston Craig Stantec Consulting Ltd., 49 Frederick St., N2H 6M7, Kitchener, ON, Canada aut NATIONALLICENCE 700 1- Judd-Henrey Ian Saskatchewan Research Council, 125 - 15 Innovation Boulevard, S7N 2X8, Saskatoon, SK, Canada aut NATIONALLICENCE 700 1- Harvey F. School of Natural Resources, University of Nebraska Lincoln, 113 Nebraska Hall, 901 17th St., 68588-0158, Lincoln, NE, USA aut NATIONALLICENCE 700 1- Drimmie Robert Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, N2L 3G1, Ontario, Canada aut NATIONALLICENCE 700 1- Jones Jon Department of Earth and Environmental Sciences, University of Waterloo, 200 University Ave. West, Waterloo, N2L 3G1, Ontario, Canada aut NATIONALLICENCE 773 0- Hydrogeology Journal Springer-Verlag 19/1(2011-02-01), 101-115 1431-2174 19:1<101 2011 19 10040 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer