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 1735 for “"Minerals"”.
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Diffusion in minerals
Thesis. (Ph.D.) Massachusetts Institute of Technology. Dept. of Geology, 1951.
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Biosignature storage in sulfate minerals- synthetic and natural investigations of the jarosite group minerals
… the effect that biomolecule has on the jarosite minerals is dependent on the end-member and indicate that the jarosite minerals are an excellent target for detecting potential signs of past life on other planets.
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Biosignature storage in sulfate minerals- synthetic and natural investigations of the jarosite group minerals
… the effect that biomolecule has on the jarosite minerals is dependent on the end-member and indicate that the jarosite minerals are an excellent target for detecting potential signs of past life on other planets.
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Kinetic processes of mantle minerals
This dissertation discusses the experimental results designed to constrain the processes of MORB generation. The main focus of this study is to investigate the location and the related processes of the transformation boundary from spinel to garnet peridotite facies at subsolidus conditions, because …
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Kinetic processes of mantle minerals
This dissertation discusses the experimental results designed to constrain the processes of MORB generation. The main focus of this study is to investigate the location and the related processes of the transformation boundary from spinel to garnet peridotite facies at subsolidus conditions, because …
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Bioleaching and electrobioleaching of sulfide minerals
… mode. The former mode was used to teach the minerals with the bacterium A. ferrooxidans in a bioreactor. In the latter mode, the leaching of the minerals was performed in a combination of a bioreactor and an electrochemical cell. The idea is that an increase in Fe(II) concentration, which is …
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Ionic Mobility In Stuffed-Silica Minerals
… of loosely bound cations in the stuffed-silica minerals nepheline, yoshiokaite and ß-eucryptite has been investigated. The investigation has been extended to include the feldspar minerals albite, K-feldspar and anorthite. The low-frequency dielectric properties of all of the minerals have been …
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Phosphorus adsorption by selected clay minerals
… cations on the adsorption of phosphorus by clay minerals. The various diffuse double layer and Donnan equilibrium theories were used in this theoretical treatment. Three standard clay minerals, a kaolinite, an illite and a montmorillonite were used in the investigation of the effect of …
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Accelerated carbonation of wastes and minerals
… conversion rate of calcium and magnesium-based minerals into thermodynamically stable carbonates under ambient temperature and pressure. Also, literature offers little information about physical techniques or chemical substances that could enhance the efficacy of accelerated carbonation of …
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On Clay Minerals: Adsorption and Modification
Clay minerals are prevalent in nature and are a key component of sandstone-based oil reservoirs. Understanding the behaviour of organic components at clay mineral surfaces is therefore important for elucidating the mechanisms of oil recovery. These clay - organic interactions are of interest both …
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Radiation damage in rock-forming minerals.
Thesis. 1977. M.S.--Massachusetts Institute of Technology. Dept. of Earth and Planetary Sciences.
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Study of electrical concentration of minerals
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Metallurgy, 1958.
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Crystal chemistry of the humite minerals
The minerals of the humite group have the formula nM₂SiO₄• M₁₋ₓTiₓ(OH₃F)₂₋₂ₓ0ₓ₂ where M is Mg, Fe, Mn, Ca, Zn in decreasing order of abundance, x < 1, and n=1 for norbergite, n=2 for chondrodite, n= 3 for humite, and n=4 for clinohumite. Description of the humites as alternating layers of …
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A geochemical study of diamonds, diamond inclusion minerals and other mantle minerals from the Klipspringer kimberlites, South Africa
The Klipspringer kimberlites occur in the north-eastern part of the Kaapvaal craton which is poorly represented in kimberlite and mantle studies. The kimberlites have been dated at 148+-4 Ma and the current study presents the geochemical characteristics of their diamonds, diamond inclusion and …
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