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 53 for “"geological processes"”.
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Role of fluids in geological processes
… of the planet and play an important role in many geological processes. Small aliquots of these fluids can be preserved in the geological record as fluid inclusions and can provide valuable information about the physical and chemical environment in which they formed. The ocean is the largest water …
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The Role of Fluids in Geological Processes
The role and behavior of fluids in hydrothermal and magmatic environments have been studied. Experimental studies have been carried out to determine fluid properties, in natural environments and in both synthetic and natural fluid and melt inclusions. One of these studies dealt with the effect of …
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Formation of a bath - Geological processes in Architecture
Geological processes define every place on earth. They tell us their story of formation, of shaping events that have long passed and about current conditions that continue to form the place. Each place therefore reveals its historical events and points towards its future. Man manipulates these …
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Polluted White Dwarfs: Insights into Ancient Extrasolar Planetary Systems
… is fast approaching. An understanding of the geological processes which determine a rocky world’s bulk composition, geodynamics, and subsequent climate is of vital importance to this pursuit. In this thesis, I demonstrate how the pollution of white dwarf stars by rocky exoplanetary material …
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Causes and ecological consequences of the Spencer Gulf seagrass dieback / Stephanie Seddon.
… Spencer Gulf where climatological extremes and geological processes are the main environmental factors influencing the processes of seagrass dieback and subsequent recolonisation and succession.
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Some aspects of the geochemistry of gallium in silicate rocks and stony meteorites
… and its relationship with aluminium during geological processes; and to evaluate the possibility of using variations in the gallium contents and Ga/Al ratios of rocks both to assist in the interpretation of the geochemical history of differentiated suites and to define regional differences, …
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Technological review of deep ocean manned submersibles
… 1960 dive. Currently little is known about the geological processes and ecosystems of the deep ocean. The Deepsea Challenger is equipped with a plethora of instrumentation to collect scientific data and samples. The development of the Deepsea Challenger has sparked a renewed interest in manned …
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Dynamic processes at submarine plate boundaries
… submarine plate boundaries that jointly address geological processes and methodological challenges associated with plate boundary deformation. Based on a diverse set of marine geophysical observations, it explores the spatial and temporal variability of deformation foci at mid-ocean ridges and …
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Echoed Sites and the Unknowable Object
… that the machine processing of stone mimics geological processes, but at a faster rate. I’m critiquing our processes of excavating material because it’s occurring in juxtaposition to the millions of years rocks take to form. <em>Echoed sites </em>connect to the origin of geologic materials in …
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Dormant Images: Documentary Film, Volcanoes, and the Archive
… two growing interests across the humanities – in geological materialities and temporalities and in the physical site and concept of the archive – the thesis examines the largely unmapped interactions between these two questions through the lens of archivally constituted moving image works that …
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Evolutionary and ecological genomics in deep-sea organisms
… using barnacles as model. I suggest that the geological processes and dispersal mechanisms discussed here can explain distribution patterns of many other marine taxa. I then move on to resolve long-standing questions regarding species definitions in recalcitrant deep-sea coral taxa. Finally, I …
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Viscoelastic Fluid Modeling for Geophysical Applications in an Eulerian Framework
Geological processes in the Earth's lithosphere and upper mantle exhibit elastic behavior on short timescales and viscous behavior on long timescales, motivating the use of viscoelastic models for intermediate regimes. Such models are essential for capturing both stress accumulation and permanent …
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The role of abiotic and biotic interactions in deep-sea benthic habitats of the northeastern Gulf of Cadiz
… hydrocarbon-rich fluid venting, among other geological processes. Regarding oceanography, the single and interactive effects of the Eastern North Atlantic Central Water and of the Mediterranean Outflow Water strongly influence seabed topography and substrate types. Both oceanographic and …
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Gold mineralization in the Missanabie-Renabie district of the Wawa subprovince (Missanabie, Ontario, Canada)
The geological processes responsible for the formation of hydrothermal gold deposits are often equivocal. For example, gold-bearing, shear zone-hosted laminated quartz veins in the Missanabie-Renabie gold district (Archean Wawa subprovince, Ontario, Canada) have been interpreted as both …
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Analyzing geological materials under martian conditions using laser-induced breakdown spectroscopy : plasma fundamentals, sample classification, and trace element quanitification
… for the study of solids, liquids and gases. Geological applications for LIBS are a particularly exciting area of research, in part due to the capabilities of the technique to quickly and simultaneously detect nearly all major, minor and trace elements on unprepared samples either in a …
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Disturbance grounds : an inquiry into non-equilibrium architectural states
… scale of the mega-city and the time scale of the geological, advocating for a manipulation of our environment that extends architectural operation beyond our life-span, human labor, and predefined architectural program. From nature's perspective, mass material movements are one of the ways in …
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Depletion, Technology and Productivity Growth in Metallic Minerals Industry
Owing to the diverse geological processes of genesis, metals occur in earth’s crust in a variety of minerals that form ore deposits across the globe. These deposits significantly differ in terms of their physical and chemical characteristics, and conditions of hosting. Productivity growth in any …
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Assessing the Crustal Source Depth and Cause of Magnetization North of Caloris Planitia, Mercury
… across orbits. However, the underlying geological processes responsible for these observed crustal magnetic field features remain uncertain. One hypothesis is that the magnetic features were formed in the ejecta blankets of impactors. According to this hypothesis, the impactor material …
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Novel Multitemporal Synthetic Aperture Radar Interferometry Algorithms and Models Applied on Managed Aquifer Recharge and Fault Creep
… technique advancements, the research explores geological phenomena, detecting five significant slow slip events (SSEs) along the Southern San Andreas Fault using multitemporal SAR interferometric time series from 2015-2021. These SSEs govern aseismic slip dynamics, manifesting as avalanche-like …
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Planet Mercury: volatile release on a contracting world
This thesis investigates the geological processes by which materials containing high concentrations of volatile substances have been delivered to the surface of the planet Mercury throughout its history, despite global contraction, which could be expected to impede the replenishment of these …
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