| Title | Constraining groundwater flow in Champlain Sea muds |
| Download | Download (whole publication) |
| |
| Licence | Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences. |
| Author | Hinton, M J ;
Alpay, S |
| Source | Southern Ontario groundwater project 2014-2019: summary report; by Russell, H A J (ed.); Kjarsgaard, B A (ed.); Geological Survey of Canada, Open File 8536, 2020 p. 203-215, https://doi.org/10.4095/321106
 Open Access |
| Year | 2020 |
| Publisher | Natural Resources Canada |
| Document | open file |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is contained in Southern Ontario
groundwater project 2014-2019: summary report |
| File format | pdf |
| Province | Ontario |
| NTS | 31F/08 |
| Area | Kinburn |
| Lat/Long WENS | -83.5000 -74.2500 47.0000 41.5000 |
| Lat/Long WENS | -76.1806 -76.1806 45.4219 45.3450 |
| Subjects | hydrogeology; surficial geology/geomorphology; geochemistry; geophysics; Nature and Environment; Science and Technology; groundwater; groundwater flow; flow rates; computer simulations; sediments; muds;
silts; rhythmites; marine clays; clays; sands; gravels; glacial deposits; glacial landforms; eskers; modelling; chloride distribution; chloride geochemistry; concentration; boreholes; core samples; pore water samples; discharge rates; porosity; flow
velocities; water geochemistry; groundwater geochemistry; mass spectrometer analysis; salinity; geophysical interpretations; seismic interpretations; hydraulic analyses; hydraulic conductivity; Champlain Sea Sediments; glaciomarine sediments;
Phanerozoic; Cenozoic; Quaternary |
| Illustrations | location maps; tables; seismic sections; profiles; lithologic sections |
| Program | Groundwater Geoscience Aquifer Assessment & support to mapping |
| Released | 2020 05 28 |
| Abstract | One-dimensional groundwater transport modelling replicates the distribution of chloride ion concentrations measured in pore water from Champlain Sea muds, 2.8 km southeast of Kinburn, Ontario. The best
fitting model simulations produce quantitative estimates of upward vertical specific discharge (q) between 0.84 and 0.97 mm/annum (mm/a) for the boundary conditions used. The average measured porosity of n = 0.55 allows calculation of a
well-constrained range of average linear groundwater velocities, v = 1.5 to 1.8 mm/a. The ~100-m thickness of Champlain Sea muds at the Kinburn site is large relative to the solute transport distance. Consequently, up to 98% of the modelled initial
Champlain Sea water signature in pore water was preserved at the measured peak concentration. Chloride concentrations decrease to fresh water values both above and below the position of the maximum concentration. This study demonstrates that
transport modelling of such a complete concentration profile effectively constrains the range of groundwater flow rates in Champlain Sea muds. |
| Summary | (Plain Language Summary, not published)
Collection of papers on work completed in the past five years as part of the southern Ontario Groundwater Project. This edited volume is a collection of
currently unreported work. |
| GEOSCAN ID | 321106 |
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