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TitleRegional hydrogeochemistry of the carbonate rock aquifer, southern Manitoba
AuthorGrasby, SORCID logo; Betcher, R
SourceCanadian Journal of Earth Sciences 39, 7, 2002 p. 1053-1063,
Alt SeriesGeological Survey of Canada, Contribution Series 2001206
PublisherCanadian Science Publishing
Mediapaper; on-line; digital
File formatpdf
NTS52E/03; 52E/04; 52E/05; 52E/06; 52E/11; 52E/12; 52E/13; 52E/14; 52L/03; 52L/04; 52L/05; 52L/06; 52L/11; 52L/12; 52L/13; 52L/14; 52M/03; 52M/04; 52M/05; 52M/06; 52M/11; 52M/12; 52M/13; 52M/14; 53D/03; 53D/04; 53D/05; 53D/06; 53D/11; 53D/12; 53D/13; 53D/14; 53E/03; 53E/04; 53E/05; 53E/06; 53E/11; 53E/12; 53E/13; 53E/14; 53L/03; 53L/04; 53L/05; 53L/06; 53L/11; 53L/12; 53L/13; 53L/14; 62F/01; 62F/02; 62F/07; 62F/08; 62F/09; 62F/10; 62F/15; 62F/16; 62G; 62H; 62I; 62J; 62K/01; 62K/02; 62K/07; 62K/08; 62K/09; 62K/10; 62K/15; 62K/16; 62N/01; 62N/02; 62N/07; 62N/08; 62N/09; 62N/10; 62N/15; 62N/16; 62O; 62P; 63A; 63B; 63C; 63F; 63G; 63H; 63I; 63J; 63K
AreaSouthern Manitoba
Lat/Long WENS-102.0000 -95.0000 55.0000 49.0000
Subjectshydrogeology; hydrogeochemistry; sedimentary rocks; carbonates; bedrock aquifers; stable isotope studies; geochemical surveys; salt water; brine; hydrostratigraphic units; flow regimes; Williston Basin; Devonian; Ordovician; Paleozoic
Illustrationssketch maps; plots; graphs; stratigraphic sections
Released2002 07 01
AbstractMiddle Ordovician to Middle Devonian carbonates in the Manitoba lowlands form an extensive aquifer system along the eastern edge of the Williston Basin. The aquifer is divided into fresh and saline portions by a series of topographic lows defined by major river systems and lakes that create a northsouth-trending hydraulic divide. East of this divide CaMgHCO3 fresh waters are derived by active modern-day recharge focused in the Sandilands and Interlake regions. Stable isotope and geochemical data indicate that NaCl saline waters west of the divide are a mixture of original basin brines and glacial melt water pushed into the basin during Pleistocene glaciation. High Na/Cl and Cl/Br ratios are consistent with significant salt dissolution by glacial melt water.

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