Browsing Geological Sciences and Geological Engineering, Department of by Title
Now showing items 144-163 of 194
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Process Sedimentology and Three-Dimensional Facies Architecture of a Fluvially Dominated, Tidally Influenced Point Bar: Middle McMurray Formation, Lower Steepbank River Area, Northeastern Alberta, Canada
(2012-01-30)Within the middle McMurray exposures along the Steepbank River (Steepbank River Outcrops 3 and 4), nine recognized facies can be divided into three genetically related groups: sand-dominated facies, inclined heterolithic ... -
Protolith Affiliation and Tectonometamorphic Evolution of the Gurla Mandhata Core Complex, NW Nepal Himalaya
Migmatite-cored gneiss domes in the Himalaya are valuable structures that expose the mid-crust, allowing for the investigation of tectonic and structural processes governing the evolution of the Himalayan orogen. Located ... -
The Provenance and Geochemical Alteration of Bermudan Eolianites
(2016-10-01)Large calcareous eolianites cover the remote island of Bermuda, accounting for more than 90% of the limestone bedrock. This study examines the sedimentology and geochemistry of these eolianites to better understand Pleistocene ... -
Provenance of Holocene Calcareous Aeolianites, Eastern South Australia
(2016-10-14)The southeastern coast of South Australia contains a spectacular and world-renown suite of Quaternary calcareous aeolianites. This study is focused on the provenance of components in the Holocene sector of this carbonate ... -
Provenance, mineralogy, geochemistry, geochronology and Pb isotope systematics of meta-siliciclastic rocks in the Mesoproterozoic Upper Vazante Sequence, Brazil: Implications for metal sources and base metal metallogeny
The objective of this research is to investigate the origin and evolution of meta-siliciclastic rocks within the Mesoproterozoic Upper Vazante Sequence (1300 to 1100 Ma) in order to improve understanding of metal sources ... -
Reinterpretation of the Ambient Paleoenvironmental Redox Conditions and Timing of Mineralization at SEDEX Zn-Pb Deposits in the Howard’s Pass District, Yukon
(2015-11-26)The Howard’s Pass district (HPD) of sedimentary exhalative (SEDEX) Zn-Pb deposits is located in the Selwyn basin, Yukon, and comprises 14 Zn-Pb deposits that contain an estimated 28 Mt of Zn+Pb metals. Semi-massive to ... -
Relating Ediacaran Fronds
(Cambridge University Press, 2017)Ediacaran fronds are key components of terminal-Proterozoic ecosystems. They represent one of the most widespread and common body forms ranging across all major faunal localities and time slices postdating the Gaskiers ... -
Relationship Between Oceanography and Brachiopod Geochemistry; eastern Great Australian Bight
(2009-02-02)Determination of water masses and circulation in the eastern Great Australian Bight, in conjunction with analysis of δ18O values and trace element concentrations in the articulated brachiopod Anakinetica cumingi, indicate ... -
Reliability of Stress Induced Damage Predictions in Hard Rocks With Continuum and Discontinuum Numerical Modelling Approaches
The use of underground repositories known as deep geological repositories (DGR) is globally accepted to be the best solution for long term storage of nuclear waste. In combination with different types of engineered barriers, ... -
Rockmass Behavioural Uncertainty: Implications for Hard Rock Geotechnical Baseline Reports
(2014-12-02)Geotechnical Baseline Reports (GBRs) have become a prevalent risk sharing mechanism on North American tunneling projects as they are based on the following risk allocation concept: the subsurface ground conditions described ... -
Rockslides in a Changing Climate: Establishing Relationships Between Meteorological Conditions and Rockslides in Southwestern Norway for the Purposes of Developing a Hazard Forecast System
(2010-02-09)The steep, mountainous terrain of southwestern Norway is prone to a high frequency of rockslides. It is known that many of these rockslides are triggered by meteorological conditions, yet there have been few studies dedicated ... -
Role of reactivated basement faults in localizing deformation in the upper crust: Insights from centrifuge analogue modelling
(2015-03-12)Dynamically scaled centrifuge analogue models are used to investigate recent interpretation of enhanced gravity data, which highlights northeast-striking inherited faults in the crust of northern India. The reactivation ... -
The Role of the Tyrrell Sea Aquitard and Bioherms in the Hydrogeology of the James Bay Lowlands Under Dewatering Conditions
(2013-02-07)The Hudson-James Bay Lowlands (HJBL) are composed of fens and bogs frequently intersected by rivers and punctured by bioherms (ancient reef mounds) rising from bedrock aquifer. The peatlands exist partly due to minimal ... -
Seasonal variation of arsenic and antimony in surface waters of small subarctic lakes impacted by legacy mining pollution near Yellowknife, NT, Canada
(Elsevier, 2019-09-20)The seasonal variation in lake water arsenic (As) and antimony (Sb) concentrations was assessed in four small (<1.5 km2) subarctic lakes impacted by As and Sb emissions from legacy mining activities near Yellowknife, ... -
Sedimentological and Chemical Attributes of Late Pleistocene Cool-Water Carbonates From the Southern Australian Continental Margin: Early Seafloor Diagenesis and Paleoceanography
(2008-01-15)The high-energy open shelf along the southern Australian continental margin is blanketed by heterozoan cool-water carbonates of late Pleistocene and Holocene age. Three distinct assemblages have been identified and ... -
Sedimentology and facies architecture of the tide-influenced, river-dominated delta-mouth bars in the lower Lajas Formation (Jurassic), Argentina
(2014-09-03)The lower Lajas Formation (Jurassic), western Argentina, has been interpreted to represent a progradational tide-dominated deltaic succession with tidal dominance throughout complete base-level cycles. Two sequences have ... -
Sedimentology and Oceanographic Controls on Temperate, Shallow-Water Carbonate Deposition: Spencer Gulf, South Australia
(2014-12-15)Spencer Gulf is a large, shallow, metahaline embayment along the southern Australian continental margin (~22,000 km2, > 60 m water depth). The gulf experiences inverse estuarine circulation and seasonally fluctuating water ... -
Sedimentology of the Catalina Dome and taxonomy of Mistaken Point small fronds
(2013-11-04)Research carried out in the Ediacaran of eastern Newfoundland focused on two projects: sedimentology of the Conception and St. John’s groups exposed on the Bonavista Peninsula; and taxonomic descriptions of the small, ... -
Sedimentology of the Miocene Nullarbor Limestone; Southern Australia
(2010-12-24)The Miocene Nullarbor Limestone is the most recent formation in the Cenozoic Eucla Group and was deposited in the Eucla Basin, southern Australia, at ~38°S paleolatitude during the early to middle Miocene. The rocks form ... -
Shallow Urban Tunnelling Through Heterogeneous Rockmasses: Practical Experience From Small Scale Tunnels in Calgary, Alberta and the Influence of Rockmass Layering on Excavation Stability and Support Design
(2012-09-26)Shallow excavations through variable rockmasses in urban centers present significant design challenges, whether considering small diameter tunnels for utilities or large span underground caverns. In designing shallow ...