Mayer, BernhardCheung, Terri Tze-Man2019-12-232019-12-232019-12-20Cheung, T. T. (2019). Establishing High-Resolution Hydrogeological, Geochemical and Isotopic Baseline Conditions of the Fresh Water Zone at a Field Research Site Near Brooks, Alberta, Canada (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.http://hdl.handle.net/1880/111381A high-resolution baseline characterization of dissolved gases in groundwater at the CMC field research site from 25.0 to 106.3 m depths was conducted. Data was collected from a continuously cored 106.3 m deep borehole, a 100.0 m deep Westbay® multi-level system and a 67.1 m deep domestic well. The multi-level well with 26 ports revealed variability and stratification in hydrogeology and hydrochemistry. Ports completed in coals had high flow rates and yielded sodium bicarbonate water type, water isotope compositions resembling local meteoric water, elevated methane and ethane concentrations, and biogenic d13C-CH4 values of <-82‰. Below the coals, ports were characterized by lower flow rates, higher d18O and d2H values of water and variable water types. Methane and ethane concentrations were lower compared to samples obtained from coals and d13C-CH4 values ranged between -75‰ and -60‰. The domestic well yielded groundwater with chemical and isotopic compositions resembling groundwater from only the high-flowing coal-containing aquifer portions.engUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.HydrogeologyGeochemistryIsotopesBaseline StudiesCarbon StorageCarbon SequestrationGeochemistryGeologymaster thesis10.11575/PRISM/37367