Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 136 for “"mineralisation"”.
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Grenzflächen-kontrollierte Mineralisation von Calciumphosphat
… als hydrophoben Block, gute Template für die Mineralisation von Calciumphosphat an der Wasser/Luft-Grenzfläche sind. Mittels Infrarot-Reflexions-Absorptions-Spektroskopie (IRRAS), Röntgenphotoelektronenspektroskopie (XPS), Energie dispersiver Röntgenspektroskopie (EDXS), Elektronenbeugung …
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Platinum-group element mineralisation in the Shetland ophiolite complex
… which are unusual in ophiolites. Aspects of this mineralisation suggest both magmatic and hydrothermal concentration processes, although neither individually explain the observed paragenesis. This study examines the distribution of PGE within a representative fresh vertical section of the …
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Stratabound and Stratiform Sulphide Mineralisation in the Scottish Dalradian
Predicted demand for cobalt in the production of high capacity batteries for electronic devices and in electric vehicles has increased as the world is expected to move away from the use of fossil fuels. It is likely that the demand for cobalt will rise beyond currently known reserves, therefore, …
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Turkey-leg-tendon : a model system for collagen mineralisation
… model system to explore the process of collagen mineralisation. Mineralisation takes place in distinct regions across the length of the tendon and is accompanied by a change in biomechanical properties of collagen. The collagen becomes more aligned and adapted to the mechanical demand of the …
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Controls on mineralisation in the Cadeby formation (lower magnesian linestone)
Several distinct low grade assemblages of baryte and/or base metal sulphides are present within the Cadeby Formation at outcrop', each assemblage being restricted to a certain geographical area and, s betimes, one stratigraphic horizon. Although some occurrences are fault controlled, the majority …
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Phosphonathaltige (Co)Polymere und ihr Einfluss auf die Mineralisation von Calciumphosphat
… es weniger die Phosphonsäuregruppe ist, die die Mineralisation beeinflusst, sondern es eher eine Folge der Säure im Polymer ist. Wird die Stabilisierung und Auflösung der Knochenähnlichen Substanzen betrachtet, fällt auf, dass auch hier wieder die Säuren den größten Effekt ausüben. Die …
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Origin of the Kleva Ni-Cu sulphide mineralisation in Småland, southeast Sweden
… numerous syngenetic and epigenetic base metal mineralisations, occur just south of the Kleva intrusive complex. The aim of this PhD-thesis is to deduce the origin of the Kleva deposit, the mineralisation itself as well as its host rocks through geochemical, geochronological and petrological …
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An investigation of the hydrothermal stability and mineralisation of collagen and their relationship
… The possibility of using in-vitro partial mineralisation of collagen as a method of increasing the hydrothermal stability was investigated. Remineralisation experiments using demineralised turkey leg tendon and chemically modified bovine hide collagen showed that although it was possible to …
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The geometry of some Beaufort group sandstones and its relationship to uranium mineralisation
… geometry has evolved a new model of uranium mineralisation. It is proposed that the mineralisation is syngenetic and generated by reduction of uranyl carbonates on carbonaceous material. The carbonaceous material must however be lying closely below or within a weak REDOX front, since it is …
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Gold mineralisation and mineral exploration within the Clogau mine, Dolgellau gold belt, N Wales
… fracture reactivation is believed to accompany mineralisation with gold localization partially controlled by fracture-hosted pathways. Research in this study found gold grades, a measure of the abundance of gold ore, within borehole GMOW_LL001 in 36 places, with the most significant results …
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Re-evaluation of Kombat-style mineralisation and implications for exploration in the Otavi mountainland, Namibia
This study re-evaluates the Cu-Pb and Fe-Mn ore mineralization of the Kombat Mine (ML-16, ML-73B) and Gross Otavi Mine (ML-73C), situated between 19 ̊41’ 30” S, 19̊ 39’ 00” S and 17 ̊40’ 00” E, 17 ̊35’ 00” E (WGS84) based on the field geology, fluid inclusions, petrology, mineralogy and …
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Der Einfluß lokaler Fluoridierungsmaßnahmen auf die Fluoridaufnahme, Retention und die Mineralisation kariöser Initialläsionen in vitro
… Fluoridkonzentrationen bewirken keine höhere Remineralisation als häufig angewendete niedrige Fluoridkonzentrationen.
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Soil respiration, microbial respiration and mineralisation in soils of montane rainforests of Southern Ecuador: influence of altitude
… carbon and nitrogen pools as well as nitrogen mineralisation potentials. Furthermore, size, activity, and structure of microbial biomass were characterised. The collected data was supposed to provide basic knowledge on carbon and nitrogen cycling in tropical montane forest soils. Thus, …
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Sediment-hosted Zn-Pb-Ag (+ Cu) deposits in the Mount Isa region: An epigenetic approach to mineralisation
… contrasting metallogenic models: (1) Zn-Pb-Ag mineralisation was formed during the deposition of the host Urquhart Shale at ca. 1655 Ma and was overprinted by Cu mineralisation at ca. 1500 Ma; (2) Zn-Pb-Ag mineralisation formed during the late stages of the 16201500 Ma Isan Orogeny and is …
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Sedimentology and depositional environment of a marine target, Southern Namibia: 3D stratigraphic architecture and diamond mineralisation potential
… on a high energy shelf. In addition, the diamond mineralisation potential of the offshore gravel beaches can be assessed with respect to the well-documented onshore diamondiferous beaches.
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