Browsing Geological Sciences and Geological Engineering, Department of by Publish Date
Now showing items 1-20 of 221
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Structural analysis of brittle deformation features along Grenvillian shear zones in southeastern Ontario
(2007-08-02)Brittle features along two prominent shear zones in the Grenville Province of southeastern Ontario, the Central Metasedimentary Belt boundary thrust zone (CMBbtz) and Robertson Lake mylonite zone (RLmz), are investigated ... -
An early Permian subtropical carbonate system : sedimentology and diagenesis of the Raanes and Great Bear Cape formations, Sverdrup Basin, Arctic Canada
(2007-08-29)The Early Permian (Sakmarian to Kungarian) Raanes and Great Bear Cape formations of the Sverdrup Basin were deposited at a time of ocean cooling, and are interpreted to reflect a subtropical setting. Pelmatozoans, bryozoans, ... -
Microbial carbon within and above exotic copper deposits in northern Chile : implications for ore genesis and exploration
(2008-01-03)“Exotic-type” Cu silicate-oxide deposits hosted by Miocene pediment gravels represent an unusual, but characteristic, by-product of the supergene enrichment of Cenozoic porphyry Cu deposits in northern Chile. Carbon stable ... -
Geologic Controls on Instability in WWI Excavations, Canadian National Memorial Site, Vimy, France
(2008-01-14)The Canadian National Memorial Site, near Vimy, Artois, France, commemorates the WWI Battle of Vimy Ridge; where all four divisions of the young Canadian Corps fought together with the British Forces to liberate the French ... -
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 ... -
The Applicability of Passive Treatment Systems for the Mitigation of Acid Mine Drainage at the Williams Brothers Mine, Mariposa County, California: Bench- and Pilot-Scale Studies
(2008-01-30)The Williams Brothers Mine is located in Mariposa County, California. Surface waters from the site drain into the south fork of the Merced River and the San Joaquin River Basin. The mine was developed in the 1980s and mined ... -
The measurement of the Se/S ratios in sulphide minerals and their application to ore deposit studies
(2008-02-25)New analytical techniques have been developed for the determination of selenium concentrations in sulphide minerals to assess the utility of the Se/S concentration ratios in tracing fluids associated with ore deposit ... -
The structural, thermal, and fluid evolution of the Livingstone Range anticlinorium, and its regional significance to the southern Alberta foreland thrust and fold belt
(2008-04-08)The Livingstone Range anticlinorium (LRA) is a long (>65 km) narrow (<5 km) structural culmination that coincides with a major hanging-wall ramp across which the Livingstone thrust cuts ~1000 m up-section eastward from a ... -
Deposition and diagenesis of the early Permian Lower Parmeener Supergroup limestones, Tasmania
(2008-04-24)The Lower Parmeener Supergroup consists of 500 to 900 metres of marine and terrigenous sedimentary rocks, deposited in the high-latitude Tasmania Basin during the late Carboniferous to middle Permian, at the end of the ... -
Crystal chemistry of the jarosite group of minerals - solid solution and atomic structures
(2008-05-08)The jarosite group of minerals is part of the alunite supergroup, which consists of more than 40 different mineral species that have the general formula AB3(TO4)2(OH, H2O)6. There is extensive solid-solution in the A, B ... -
The Marcona - Mina Justa District, South-Central Perú: Implications for the Genesis and Definition of the Iron Oxide-Copper (-Gold) Ore Deposit Clan
(2008-05-14)The Marcona district of littoral south-central Perú represents the largest concentration of iron oxide-copper-gold deposits in the Central Andes. Hydrothermal activity occurred episodically from 177 to 95 Ma and was ... -
Application of simulated lung fluid analysis to characterize the influence of smelter activity on the respiratory bioaccessibility of nickel-bearing soils in Kalgoorlie, Western Australia
(2008-07-08)The city of Kalgoorlie in Western Australia has been labeled an “asthma hot spot” attributed to mining activity, prompting further investigation into toxic elements (Lee et al., 2006). Inhalation of nickel-bearing particles ... -
Examination of Geological Influence on Machine Excavation of Highly Stressed Tunnels in Massive Hard Rock
(2008-09-27)A combined geological and rock mechanics approach to tunnel face behaviour prediction, based on improved understanding of brittle fracture processes during TBM excavation, was developed to complement empirical design and ... -
Distinguishing between natural and anthropogenic sources of arsenic in soils from the Giant mine, Northwest Territories and the North Brookfield mine, Nova Scotia
(2008-10-09)Anthropogenic and geogenic sources of arsenic (As) have been identified in mining-impacted soils from the Giant mine (1948-1999), NT and the North Brookfield mine (1886-1906), NS. Both used roasting to extract gold from ... -
Dynamic Arsenic Cycling in Scorodite-Bearing Hardpan Cements, Montague Gold Mines, Nova Scotia
(2009-01-05)Hardpans, or cemented layers, form from precipitation and subsequent cementation of secondary minerals in mine tailings and can act as both physical and chemical barriers. During precipitation, metals in the tailings are ... -
Origin of the Paleoproterozoic Denault Dolomite, Labrador.
(2009-01-08)The Denault Formation (2.1-1.9 Ga) outcrops in the Labrador Trough, northeastern Quebec and western Labrador. The Denault crops out around the town of Schefferville and at Marion Lake, fifty kilometers east-northeast of ... -
Origin and Geochemistry of Modern Bahamian Ooids
(2009-01-27)The Bahamian Archipelago is one of the few locations in the world where ooid formation is actively occurring. Ooid cortices from six locations in the region were incrementally dissolved and analyzed for 14C, δ18O, δ13C, ... -
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 ... -
The distribution and controls on silver mineralization in the Main Zone of the 2.68 Ga Archean Hackett River Zn-Pb-Cu-Ag volcanogenic massive sulfide (VMS) deposit, Nunavut, Canada
(2009-03-12)The 2.68 Ga Zn-Pb-Cu-Ag Hackett River Main Zone (HRMZ) volcanogenic massive sulfide (VMS) deposit, within the Hackett River Greenstone Belt of the Archean Slave Craton is highly enriched in Ag (and Pb) compared to other ... -
The tectonometamorphic evolution of the Greater Himalayan sequence as exposed in central Nepal and adjacent south-central Tibet
(2009-04-13)Understanding the development of the Himalaya is critical to elucidating continental collisional processes. The Greater Himalayan sequence (GHS), the exhumed mid-crust of the Himalayan orogen, records the tectonometamorphic ...