<p> The McBean Mine is a small gold producer located along the Larder Lake Break. Ore from the open pit consists of massive and gneissic syenite. The highest go I d grades come from highly carbonitized syenitic rocks with abundant fine grained, euhedral pyrite. Petrographic observation shows gold to be found as inclusions in pyrite, platings on pyrite and as free grains in the gangue. XRD analyses show the major carbonate type to be dolomite. In addition to dolomite, minor amounts of calcite are found in auriferous syenitic rocks. SEM microscopy shows carbonate composition to vary with rock types and grain location. Geochemical studies show a high intensity of carbonate alteration and the association of gold with tungsten and uranium. Auriferous syenites were determined to have elevated HREE element abundances compared with unaltered syenite. The mine is therefore characterized by extensive hydrothermal carbonate alteration related to the Larder Lake Break. </p> / Thesis / Bachelor of Science (BSc)

<p> The Buffalo Mine, located in Heyson Township, Red Lake, consists of quartz-tourmaline veins in a grandiorite. An alteration halo, consisting of andesine feldspar, quartz, calcite, with minor tourmaline, zircon, and opaques, is seen surrounding the veins. Opaque minerals consists of pyrite and hematite. Possible Na - overgrowths of the Plagioclase are seen , as well as complete destruction of the mafic minerals. </p> <p> Geochemistry shows that the wall-rock alteration involves the breakdown of Si, Al, Fe, Mg, Na, and K . Si and Al remain fairly constant, while Na and Ca increase and Fe, Mg, and K decrease in abundance. There has been a sufficient input of CO2 to precipitate calcite, as well as Enough sulfur to form pyrite. </p> <p> The initial hydrothermal solutions were high temperature NaCl solutions, enriched in boron and containing some CO2 . The fluids were likely oxidizing and had a neutral pH. </p> / Thesis / Bachelor of Science (BSc)

This project tries to understand how we alter existing architecture. The research leads to a proposal that attempts to answer the question: Should a death of a building be a part of its envisaged timeline? It is difficult to preempt a building being dead, but it might be possible to preempt a building being refurbished, renovated and especially replicated. I will try to incorporate the dimension of time in the new buildings and embrace the inevitable change, as well as explore the friction between originality and copying that the process of alteration generates. The site chosen for this architectural experiment is a ski jump erected at Norra Djurgården, and the proposal is its morphed copy hosting a visitors centre and an urban sports centre. The ambition is to establish guidelines or principles of mimicking and copying the elements of an existing edifice in the new one.

No description available.

During periods of turmoil when ideological preferences between the federal branches of government fail to align, the relationship between the three quickly turns tumultuous. Electoral realignments especially have the potential to increase tension between the branches. When a new party replaces the 'old order' in both the legislature and the executive branches, the possibility for conflict emerges with the Court. Justices who make decisions based on old regime preferences of the party that had appointed them to the bench will likely clash with the new ideological preferences of the incoming party. In these circumstances, the president or Congress may seek to weaken the influence of the Court through court-curbing methods. One example Congress may utilize is changing the actual size of the Supreme The size of the Supreme Court has increased four times in United States history, and three out of the four alterations happened after an electoral realignment. Through analysis of Supreme Court cases, this thesis seeks to determine if, after an electoral realignment, holdings of the Court on issues of policy were more congruent with the new party in power after the change in composition as well to examine any change in individual vote tallies of the justices driven by the voting behavior of the newly appointed justice(s). / Master of Arts

The basement of the Tonga intraoceanic forearc comprises Eocene arc volcanic crust formed during the earliest phases of subduction. Volcanic rocks recovered from the forearc include boninites and arc tholeiites, apparently erupted into and upon older mid-oceanic ridge tholeiites. Rock assemblages suggest that the forearc basement is a likely analog for large supra-subduction zone (SSZ) ophiolites not only in structure and Ethology, but also in the style of hydrothermal alteration. Dredged volcanic samples from the central Tonga forearc (20-24�� S) exhibit the effects of seafloor weathering, low (<200��C, principally <100��C) alteration, and high temperature (>200��C) alteration. Tholeiites and arc tholeiites are significantly more altered than boninites. Seafloor weathering is due to extensive interaction with cold oxidizing seawater, and is characterized by red-brown staining and the presence of Fe-oxyhydroxides. Low temperature alteration is due to circulation of evolving seawater-derived fluids through the volcanic section until fluid pathways were closed by secondary mineral precipitation. Low temperature alteration is characterized by smectites, celadonite, phillipsite, mixed-layer smectite/chlorite, carbonates, and silica. All phases fill veins and cavities; clay minerals and silica also replace the mesostasis and groundmass phases. Low temperature alteration enriches the bulk rock in K, Ba, and Na, and mobilizes other elements to varying extents. The few high temperature samples are characterized by mobilizes other elements to varying extents. The few high temperature samples are characterized by epidote, chlorite, quartz, oxides, and fibrous amphibole, which replace groundmass and phenocrysts, and fill cavities, and are presumed to have originated in zones of concentrated hydrothermal upflow.These three alteration types are similar to those seen in many ophiolites such as Troodos, where low temperatures prevailed in the volcanic section except in localized upflow zones. Alteration mineral chemistries are also broadly similar to those observed for the Troodos Ophiolite. Tonga forearc alteration differs from mid-oceanic ridge alteration in the presence of Al-rich dioctahedral smectites (not common in mid-oceanic ridge crust), the high Al content of saponite, and the predominance of K as an interlayer cation in clays. Hydrothermal alteration of the Tonga forearc is likely the product of extensive interaction with compositionally evolving seawater-derived fluids beginning at the time of emplacement. The distribution and intensity of alteration in these crustal sections depend principally on the porosity and permeability of the crust during alteration, which are influenced by the primary porosity, igneous morphology, and the presence of faults and fractures which could affect fluid flow. / Graduation date: 1999

[Truncated abstract] Mineralogical and geochemical characteristics were identified for regolith overlying two Australian Au deposits that discriminate mineralized and associated hydrothermally-altered rock from weathered rock that was not hydrothermally-altered. Mineralization was lithologically controlled within a previously unrecognized diorite dyke at the lower Proterozoic mesozonal Groundrush deposit, Tanami region, Northern Territory. Although hydrothermal alteration effects within the dyke were subtle and obliterated by weathering, Ti/Zr ratios clearly discriminated the diorite dyke from visually indistinguishable but generally unmineralized dolerite. In contrast, the Carboniferous Vera Nancy low-sulphidation epithermal Au deposit, located in the Drummond Basin, northeast Queensland, comprises structurally-controlled quartz veins within a relatively chemically homogenous suite of andesitic lavas and subvolcanic intrusions. A zoned hydrothermal alteration system in the hangingwall of the main vein grades from a proximal silica-pyrite alteration zone through an argillic zone into regionally extensive propylitic 'background'. Deep chemical weathering has destroyed the minerals diagnostic of the different alteration zones in bedrock to leave a kaolinitic regolith overlying all alteration zones. However, the silica-pyrite alteration zone is identified in regolith by retention of the anomalous concentrations of Au, As, Sb and Mo present in bedrock, and mineralogical characteristics, determined from X-ray diffraction investigations, discriminated weathered argillic from propylitic alteration zones. ... Metasomatic reactions, including weathering reactions, are typically difficult to specify, as some reactants and products may be removed by fluids, and thus evidence for their involvement is absent from the observed assemblages. In addition, the range of possible reactions even for relatively simple systems is such that identifying the real reaction may be intractable without additional information. Linear algebra provides an approach to this problem. If minerals and aqueous phases are represented as columns in a matrix with elements as rows, any vectors in the null space of this matrix (if it is greater than 0-dimensional) provide coefficients to balance reactions between the phases. The 'Gale' vectors for a set of phase are the row vectors of any basis for this null space. The relationships between phases are clarified through examination of these vectors in d-dimensional Gale vector space, where d is the dimension of the null space. The hyperplane normal to any vector in Gale vector space separates the space into reactant and product half-spaces. The geometric relationships between the Gale phase vectors describe all the possible reactions. Because changes to parameters (e.g. volume, mass, density) can be determined for each possible reaction, Gale analysis can be used to identify reactions consistent with these constraints. Gale analysis of weathering at the Vera deposit indicated that all the possible weathering reactions producing kaolinite, goethite and quartz from illite, pyrite and siderite resulted in minor reductions in volume and mass only, whereas acid-neutral weathering of propylitic rocks exhibited greater mass losses, consistent with observation and geochemical interpretation.

This project is speculation in search of possibilities and rethinking the potential of Gamla Stan. Society is continually changing, as are the cities that we live in. The old town is mainly a residential area, but also a “living, pedestrian-friendly museum”. This is a place out of time and frozen in its form, a certain sensitivity is required when thinking about such a fragile context. However, the urban structure is not a fixed entity, but a dynamic and evolving one. By gentle carving in the existing city fabric, the aim is to re-introduce a workshop space in a contemporary manner. The idea is tested on the block of Cassiopea, where its building components get interconnected to make a continuous interior. The new space is about forgetting about the hyper-productivity mindset, with an intention to promote aesthetic pleasure and a slow pace of life. This collective and multifunctional space is a representation of artistic expression, a city atelier for making craft using technology. A space for artists, makers, and education, visible to the public.

Denna studie syftar till att genom ett pedagogiskt perspektiv undersöka människors berättelser om tillfrisknande från utmattningssyndrom med fokus på förändringsprocesser, lärande och utveckling. För att kunna uppnå studiens syfte har två frågeställningar använts. Den ena är, på vilket sätt uppfattar informanterna att det har skett en förändring från dagen de fick sjukdomsdiagnosen fram tills idag? Den andra frågeställningen är, på vilket sätt har vägen ur ett utmattningssyndrom utvecklat informanterna? För att läsaren skulle få en tydligare bild av vad begreppet utmattningsdiagnos innebar redogjordes det kort för begreppet. En bakgrundsdel presenterades även för att läsaren skulle få en tydligare bild av varför personer drabbas av utmattningssyndrom. Efter bakgrundsdelen redogjordes det för den tidigare forskning som studerats när det gäller faktorer som kan främja och hindra ett eventuellt tillfrisknande från utmattningssyndrom.   För att uppnå studiens syfte och undersöka människors berättelser om tillfrisknandet från utmattningssyndrom användes intervjumetoden semistrukturerad intervju som metodansats. Efter att intervjuerna genomförts bearbetades materialet genom att det sorterades, reducerades och till sist analyserades. Resultatet visade, om personerna skulle kunna ta sig ur utmattningssyndromet var det viktigt att dem reflekterade över situationen och genomförde konkreta förändringar i arbetsliv samt vardag. Det kunde exempelvis handla om att sätta gränser, ta kontroll över situationen och hitta en balans mellan privatliv samt arbetsliv. När personer som drabbats av utmattningssyndrom genomför denna förändringsprocess är risken mindre att de återigen hamnar i ett utmattningssyndrom. Anledningen till detta är för att de har lärt sig mer om sig själva och att de har utvecklats som personer. / This study aims to investigate people’s stories of recovery from burnout with focus on the changing process, learning and development thru an educational perspective. To accomplish the reason for the study two questions have been used. The first question is, in what way does the informants perceive that an alteration has been made from the day that they were diagnosed with burnout until today? The second question is, in what way have the road to recovery from burnout developed the informants? To give the reader a clearer image of what the term burnout means a short explanation was made about the meaning of the term. A background was also presented to clarify why people get this diagnosis. Thereafter an explanation of the previous research that has been conducted regarding burnout syndrome and what factors that can aid and prevent a recovery was presented.   To achieve the purpose of the study and investigate people’s stories about recovery from burnout a semi structured interview was used as the method. After the interviews were done the data was sorted, reduced and analyzed. The result showed that for a person to be able to get out of a state of burnout it is paramount for him/her to reflect over the situation and perform concrete alterations in their work life and everyday living. It could for example be putting up boundaries, take control over the situation and finding a balance between private life and work life. When the persons have gone through this alteration process the risk of once again ending up in a stadium of burnout is smaller. The reason for this is the person have learned more about themselves and developed as a person.

No description available.