Browsing Earth and Environmental Sciences by Title
Now showing items 375-394 of 435
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Stabilization of Mercury in River Water and Sediment Using Biochars
(University of Waterloo, 2016-11-29)Mercury (Hg) is a common contaminant in air, oceans, lakes, rivers, soils, and sediments as elemental, inorganic and organic forms. Organic Hg (e.g., methylmercury (MeHg)), which is much more toxic than other forms and can ... -
Stable Isotope Fractionations of Chlorinated Ethenes Associated with Physical Processes
(University of Waterloo, 2017-01-24)Chlorinated ethenes are the widespread source of groundwater contamination, which mostly originate from industrial and dry-cleaning facilities. Since chlorinated ethenes are denser than water, they sink below the water ... -
Stable isotope mass balance of the North American Laurentian Great Lakes
(University of Waterloo, 2011-09-29)This thesis describes a method for calculating lake evaporation as a proportion of water inputs (E/I) for large surface water bodies, using stable isotope ratios of oxygen (18O/16O) and hydrogen (2H/1H) in water. Evaporation ... -
Stable Isotopes of Sulphur and Oxygen in Forested Catchments: Insight from New Techniques into Sulphur Cycling and Dissolved Organic Matter Alteration
(University of Waterloo, 2003)Dissolved organic matter (DOM) is present in all forested catchments and can be important in binding metals, absorbing UV, and the transport of nutrients (C, N, S, P). DOM is extremely heterogeneous in time and space, ... -
Statistical analysis of till geochemistry in the Nelson River area, northeastern Manitoba: implications for Quaternary glacial stratigraphy
(University of Waterloo, 2018-01-23)The Hudson Bay Lowland (HBL) contains a unique sedimentary record extending beyond the penultimate glaciation of the Quaternary. The complex interplay between two major ice dispersal centres (the Keewatin in the north and ... -
Stimulating In Situ Denitrification in an Aerobic, Highly Conductive Municipal Drinking Water Aquifer
(University of Waterloo, 2010-04-14)Best or beneficial management practices (BMPs) are often relied upon as a mitigation strategy for nitrate contamination throughout Canada. At a regional scale, reducing the quantity of nutrients applied to agricultural ... -
Stratigraphy, Structure and Geochronology of Archean Lode Gold Deposits in the Southeastern Rice Lake Greenstone Belt, Southeast Manitoba
(University of Waterloo, 2017-01-24)The Central Manitoba mine trend is one of the most important lode gold camps in the Rice Lake greenstone-granitoid belt of the western Uchi Subprovince within the western Superior Province, Manitoba, Canada. Neoarchean ... -
Structural and geochronological investigation of the southern Alexander terrane in the vicinity of Porcher Island, northwestern British Columbia
(University of Waterloo, 2013-02-22)The Alexander terrane is an allochthonous terrane within the North American Cordillera. New structural mapping and geochronology within the southern Alexander terrane in the vicinity of Porcher Island provides evidence ... -
Structural and geologic controls on gigantic (>1 Gm³) landslides in carbonate sequences: case studies from the Zagros Mountains, Iran and Rocky Mountains, Canada
(University of Waterloo, 2008-05-27)Two gigantic landslides in carbonate sequences were studied through a combination of remotely sensed datasets and detailed field investigation. Field investigations supplemented the remote analysis at both sites. The ... -
A structural and stratigraphic study in Liuyuan area, Southern Beishan orogenic collage, Northwest China
(University of Waterloo, 2019-04-17)A stratigraphic and structural study of the Permian North Shuangbaotang Complex offers new evidence constraining the timing of the final closure of the Paleo-Asian Ocean to the late Permian. The fold and thrust belt of ... -
Structural Controls and Deformation History of the Orogenic Island Gold Deposit, Michipicoten Greenstone Belt, Ontario
(University of Waterloo, 2019-07-11)Island Gold is a currently producing mine on the high-grade orogenic Island Gold deposit in northern Ontario. It is located within the southern domain of the regional Goudreau Lake Deformation Zone (GLDZ), which trends ... -
Structural Geology and Geochronology of the Bernic Lake Area in the Bird River Greenstone Belt, Manitoba: Evidence for Syn-Deformational Emplacement of the Bernic Lake Pegmatite Group
(University of Waterloo, 2010-08-31)The Bernic Lake Formation in the Bird River greenstone belt consists dominantly of mafic to felsic arc volcanic and volcaniclastic rocks, with varying amounts of mafic to felsic intrusive rocks, including the Bernic Lake ... -
Structural geology and geochronology of the Kluane schist, southwestern Yukon Territory
(University of Waterloo, 2012-10-02)In light of the recent increase of mineral exploration in the northern Cordillera, private, educational, and governmental agencies have been compelled to revisit and research areas of the Cordillera whose geologic evolution ... -
The Structural Geology, Kinematics and Timing of Deformation at the Superior craton margin, Gull Rapids, Manitoba
(University of Waterloo, 2005)The Gull Rapids area, Manitoba, lies on the Superior craton margin and forms part of the Superior Boundary Zone (SBZ), a major collisional zone between the Archean Superior craton and the adjacent Paleoproterozoic Trans-Hudson ... -
A Structural Study of the Dogpaw Gold Deposit in the Rowan-Kakagi Greenstone Belt, Western Superior Province, Northwestern Ontario
(University of Waterloo, 2021-04-22)The Dogpaw deposit is a structurally controlled gold deposit hosted in the Neoarchean, Rowan-Kakagi greenstone belt of the Western Wabigoon of the Superior Province. The Rowan-Kakagi greenstone belt consists of two ... -
A structural-metamorphic approach to deciphering the exhumation of the Gubaoquan eclogite in the Beishan Orogenic Collage, NW China
(University of Waterloo, 2021-01-13)The Ordovician Gubaoquan eclogite is situated in the southern part of the Palaeozoic Beishan Orogenic Collage of the Central Asian Orogenic Belt in NW China. Mapping of an extensive section of the metamorphic tectonite ... -
Structure of peat soils and implications for water storage, flow and solute transport: A review update for geochemists
(Elsevier, 2016-07-01)Global peatlands are a valuable but vulnerable resource. They represent a significant carbon and energy reservoir and play major roles in water and biogeochemical cycles. Peat soils are highly complex porous media with ... -
Study of Ozone Sensitivity to Precursors at High Spatial Resolution Using the Modified CMAQ-ADJ Model
(University of Waterloo, 2012-05-25)In this thesis, I apply the adjoint for the Community Multiscale Air Quality model (hereafter CMAQ-ADJ) in a high spatial resolution study of the sensitivity of ozone to several of its precursors in the regions surrounding ... -
Subsurface Analysis of Late Illinoian Deglacial Sediments in East-Central Illinois, United States, and Its Implications for Hydrostratigraphy
(University of Waterloo, 2012-01-13)During the Illinoian glaciation (approximately 180,000 to 125,000 years ago) glacial lobes advancing into Illinois deposited an extensive till sheet (i.e., the Vandalia Member till). However, very little is known about the ... -
Surface-subsurface hydrologic exchange and nutrient dynamics in a groundwater-fed stream, Bauman Creek, Ontario, Canada
(University of Waterloo, 2015-05-22)The stream-riparian-aquifer interface plays a major role in the regional flow of nutrients and contaminants due to a strong physical-chemical gradient that promotes the transformation, retention, elimination or release of ...