9 record(s) found with the tag "geochemistry" (multi-year projects are grouped):
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Inuvik to Tuktoyaktuk Highway Metal Chemistry
Principal Investigator: Gammon, Paul R
Licensed Year(s): 2023 2022 2021
Summary: This licence has been issued for the scientific research application No.5551. The overall objective of the research is to eventually determine the environmental chemistry of the elevated metal concentrations, which will in turn determine the environmental risk that these measured concentrations pose (i.e. will answer, at least in part, the questions: do these sites require remediation, and in w...


Geochemical Characterization and Reactive Transport Simulation of Metal Leaching and Acid Generation in Waste Rock from the Ekati Diamond Mine, NT
Principal Investigator: Blowes, David W.
Licensed Year(s): 2023
Summary: This licence has been issued for the scientific research application No.5492. The objective of this project is to characterize the geochemical evolution of the waste-rock contained in Pigeon waste-rock storage area to refine management solutions for this waste stream. The proposed research activities will involve field collection of Pigeon waste-rock samples and installation of monitoring eq...


Investigating Anthropogenic Sources of Groundwater Contamination in the Canadian Arctic
Principal Investigator: Hamel, Emilienne
Licensed Year(s): 2022
Summary: This licence has been issued for the scientific research application No.5245. The objectives of this project are to contribute to the territorial government’s groundwater monitoring plan by establishing baseline conditions for solutes in the local groundwater around the solid waste facility. The research team aim to improve current groundwater vulnerability frameworks to account for anthropogen...


Geochemical and mineralogical controls on the low-temperature aqueous mobility of rare earth elements (REE) in mine waste from the Nechalacho deposit, NWT
Principal Investigator: Purdy, Colin
Licensed Year(s): 2012
Summary: The objective of this study is to determine what controls whether rare earth elements are mobile under low temperature and moderate to high pH conditions. Four 55 gallon barrels cut in half will be set up at Thor Lake with mine tailings in them. The tailings will be allowed to weather in the local environment. Samples of the tailings and waters in them will be sampled at the beginning, and then...


Arsenic sequestering by microbial activity in wetlands adjacent to the Terra Mine tailings lake, Northwest Territories
Principal Investigator: Drysdale, Jessica A
Licensed Year(s): 2009
Summary: The objective of this study is to identify how arsenic is bound in the sediments, and determine the role of microbial activity in arsenic mobility. It is anticipated that the results of this research will benefit the design of a constructed wetland, which is expected to be part of site remediation. The researchers propose to sample sediments and surface and pore water from the Ho-Hum Lake wetla...


Mobility and Speciation of Antimony and Arsenic in the Aqueous Environment around the Giant Mine, Yellowknife, NWT
Principal Investigator: Fawcett, Skya
Licensed Year(s): 2007 2006 2005
Summary: The purpose of this project is to study the mobility, speciation, and mineralogical and geochemical controls on antimony (Sb) and arsenic (As) originating from the Giant Mine. This research could aid in designing reclamation plans, resolving the relation between Sb and benthic diversity and identifying threats to the Great Slave Lake ecosystem. Understanding the movement and speciation of As and S...


Sediment Investigation of Baker Creek Giant Mine, Yellowknife, NT
Principal Investigator: Barnette, Laura M
Licensed Year(s): 2005
Summary: The objective of the study is to: determine the spatial extent of sediments enriched by tailings solids; characterize the physical and geochemical characteristics of contaminated sediments in Baker Creek; determine to what extent arsenic and other elements of concern in these materials can be remobilized into the water column. Given the shallow water depth in Baker Creek, the majority of sedime...


Tracking arctic river water by geochemical means: Mackenzie Delta case study
Principal Investigator: Falkner, Kelly K.
Licensed Year(s): 1994
Summary: The researchers will be tracking the fate of Mackenzie River waters through the Delta and into the Arctic Ocean by using natural geochemical markers. Water samples will be collected by drilling through the ice at 50 locations along the main channel of the river and out over the shelf. This information is important for understanding the circulation of Arctic Ocean waters, the processes of global ...


Environmental study of abandoned DEW Line sites in the NWT
Principal Investigator: Reimer, K.J.
Licensed Year(s): 1994 1993
Summary: The Environmental Sciences Group has been requested by Indian and Northern Affairs to conduct environmental investigations of abandoned DEW Line sites (Intermediate sites) on or near Baffin Island. A major focus of this study is an evaluation of contaminants at the sites and their presence in the water, soils, vegetation and wildlife. The research will also identify when and where remedial measu...


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