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Dissertations / Theses on the topic 'Geology, mathematical models'

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Published: 4 June 2021

Last updated: 27 July 2025

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1

Ho, Chau-man, and 何秋文. "Idealisation for mathematical modelling in geotechnical practice." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B45014280.

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2

Zhao, Qian, and 赵倩. "A thermomechanical approach to constitutive modeling of geomaterials." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2011. http://hub.hku.hk/bib/B47166836.

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Modeling of the mechanical behavior of geomaterials is a fundamental yet very difficult problem in geotechnical engineering. The difficulty lies in that the engineering behavior of geomaterials is strongly nonlinear and anisotropic, depending on confining pressure, void ratio, stress history, and drainage conditions. A traditional approach to the modeling of geomaterials is to formulate empirical equations to fit experimental data. Generally, this approach is not able to provide physical insights into the diverse responses observed in the soil mechanics laboratories. Another convention

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3

Krantz, Robert Warren, and Robert Warren Krantz. "THE ODD-AXIS MODEL: ORTHORHOMBIC FAULT PATTERNS AND THREE-DIMENSIONAL STRAIN FIELDS." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/187542.

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Recent observations have highlighted the shortcomings of traditional thinking about faults and fault patterns. The slip model of faulting, developed by Ze'ev Reches, suggests that four sets of faults, arranged in orthorhombic symmetry about the principal strain axes, can accommodate general, three-dimensional strain. Classic conjugate faults are simply a special case of plane strain. Careful analysis of orthorhombic fault patterns and the tenets of the slip model has led to the development of a practical method for decoding the strain significance of fault systems developed in three-dimensiona

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4

Camp, Nicholas Julian. "A model for the time dependent behaviour of rock joints." Master's thesis, University of Cape Town, 1989. http://hdl.handle.net/11427/21138.

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This thesis is a theoretical investigation into the time-dependent behaviour of rock joints. Much of the research work that has been conducted to date in the area of finite element analysis has been involved with the development of special elements to deal with these discontinuities. A comprehensive literature survey is undertaken highlighting some of the significant contributions to the modelling of joints. It is then shown how internal variables can be used to model discontinuities in the rock mass. A finite element formulation is described resulting in a system of equations which can easily

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5

Biesiada, Veronica Catherine. "A Characterization of Structures Across the Hurricane Ridge Fault in the Southeastern Olympic Peninsula, WA, Hamma Hamma River Transect." PDXScholar, 2019. https://pdxscholar.library.pdx.edu/open_access_etds/4883.

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The Olympic Mountains in northwestern Washington, USA are defined by the arcuate shape of the basaltic Crescent Formation (Fm.) that wraps a faulted and folded meta-sedimentary core. This area was developed through accretion and exhumation by subduction-related processes, but how this relates to the deformational history of the area is not fully understood. The region has been mapped geologically, however little focus has been placed on interpreting meso-scale structures. This study investigates structures along a transect where the Hamma Hamma River crosses the Hurricane Ridge Fault, which ju

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6

Wijns, Christopher P. "Exploring conceptual geodynamic models : numerical method and application to tectonics and fluid flow." University of Western Australia. School of Earth and Geographical Sciences, 2005. http://theses.library.uwa.edu.au/adt-WU2005.0068.

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Geodynamic modelling, via computer simulations, offers an easily controllable method for investigating the behaviour of an Earth system and providing feedback to conceptual models of geological evolution. However, most available computer codes have been developed for engineering or hydrological applications, where strains are small and post-failure deformation is not studied. Such codes cannot simultaneously model large deformation and porous fluid flow. To remedy this situation in the face of tectonic modelling, a numerical approach was developed to incorporate porous fluid flow into an exist

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7

Burgess, Peter Mark. "A quantitative forward modelling analysis of the controls on passive rift-margin stratigraphy." Thesis, University of Oxford, 1994. http://ora.ox.ac.uk/objects/uuid:1249833d-ef11-4327-bdbd-5d0c40faa29e.

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A quantitative forward model has been developed to investigate the controls on the deposition, erosion, and preservation of passive rift margin stratigraphy. The model includes thermal subsidence, variable absolute sealevel, flexural isostasy, subaerial and submarine deposition on fluvial and marine equilibrium profiles, and the facility to vary sediment supply through time. Results from the quantitative model can be used to reproduce elements of the sequence stratigraphic depositional model. Conducting sensitivity tests demonstrates that variables such as sediment supply and fluvial profile b

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8

Linde, Tamara Causer. "Relational Database Analysis of Dated Prehistoric Shorelines to Establish Sand Partitioning in Late Holocene Barriers and Beach Plains of the Columbia River Littoral Cell, Washington and Oregon, USA." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/1696.

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Studies of episodic shoreline accretion of the Columbia River Littoral Cell (CRLC) have been ongoing since 1964. In this study, the sediment volumes in the late Holocene barriers and beach plains are compiled and formatted in GIS compatible databases for the four sub-cells of the CRLC. Initial evaluation involved the creation of a geodatabase of 160 dated retreat scarp positions, that were identified on across-shore GPR and borehole profiles. Ten primary timelines were identified throughout the CRLC (0-4700 ybp) and those were used to develop polygon cells. Elevation, distance measurements, an

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9

Waibel, Michael Scott. "A Numerical Model Investigation of the Role of the Glacier Bed in Regulating Grounding Line Retreat of Thwaites Glacier, West Antarctica." Thesis, Portland State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10259298.

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<p> I examine how two different realizations of bed morphology affect Thwaites Glacier response to ocean warming through the initiation of marine ice sheet instability and associated grounding line retreat. A state of the art numerical ice sheet model is used for this purpose. The bed configurations used are the 1-km resolution interpolated BEDMAP2 bed and a higher-resolution conditional simulation produced by John Goff at the University of Texas using the same underlying data. The model is forced using a slow ramp approach, where melt of ice on the floating side of the grounding line is incre

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10

Hiester, Justin. "Investigations into the Regional and Local Timescale Variations of Subglacial Drainage Networks." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1022.

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Subglacial water plays an important role in the regulation of an ice sheet's mass balance. It may be the dominant control on the velocities of ice streams and outlet glaciers on scales of months to millennia. Recent satellite observations of ice surface elevation changes have given researchers new insights into how subglacial water is stored and transported. Localized uplift and settling of the ice surface implies that lakes exist beneath the ice sheet that are being filled and drained on relatively short time scales. %At the base of an ice sheet water can be transported through a variety of d

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11

Delaneze, Marcelo Elias [UNESP]. "Modelagem dinâmica espacial aplicada na avaliação das mudanças da cobertura da terra no entorno de dutos utilizando autômatos celulares: estudo de caso duto ORBEL." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/92738.

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Made available in DSpace on 2014-06-11T19:26:10Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-10-14Bitstream added on 2014-06-13T19:13:04Z : No. of bitstreams: 1 delaneze_me_me_rcla.pdf: 1472015 bytes, checksum: 1596836f4441d15a50d94daf73c5a740 (MD5)<br>Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (ANP)<br>A obtenção de informação sobre as condições da rede dutoviária representa papel primordial na operação dos dutos, não só com o propósito de manter a eficiência operacional, mas também, para a minimização dos riscos associados a possíveis acidentes, tanto decorrentes

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12

Bienen, Britta. "Three-dimensional physical and numerical modelling of jack-up structures on sand." University of Western Australia. School of Civil and Resource Engineering, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0208.

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Mobile offshore jack-up drilling rigs are not custom-designed for a particular location but rated for typical operating characteristics, like water depths. They may be deployed at a number of different sites during their design life. Under the current guidelines, the jack-up is required to be assessed for its suitability for each new proposed location, assuming environmental loading conditions due to wind, waves and current corresponding to a 50-year return period storm applicable to the site. Traditionally, these assessments have been performed in two dimensions, simplifying the jack-up to a

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13

Pokhrel, Pranav. "The Study of Temporal and Spatial Variability of Degree Day Factor of Snowmelt in Colorado." Thesis, University of North Texas, 2016. https://digital.library.unt.edu/ark:/67531/metadc849730/.

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Snowmelt is one of the major sources of surface water supply and ground-water recharge in high elevation areas and can also cause flooding in snow dominated watersheds. Direct estimation of daily snowmelt requires daily snow water equivalent (SWE) measurements that are not always available, especially in places without monitoring stations. There are two alternative approaches to modeling snowmelt without using direct measurements of SWE, temperature-based and energy-based models. Due to its simplicity, computational efficiency, and less input data requirement, the temperature-based method is c

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14

Delaneze, Marcelo Elias. "Modelagem dinâmica espacial aplicada na avaliação das mudanças da cobertura da terra no entorno de dutos utilizando autômatos celulares : estudo de caso duto ORBEL /." Rio Claro : [s.n.], 2011. http://hdl.handle.net/11449/92738.

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Orientador: Paulina Setti Riedel<br>Banca: Cláudia Maria de Almeida<br>Banca: Maria Lúcia Marques<br>Resumo: A obtenção de informação sobre as condições da rede dutoviária representa papel primordial na operação dos dutos, não só com o propósito de manter a eficiência operacional, mas também, para a minimização dos riscos associados a possíveis acidentes, tanto decorrentes dos processos naturais quanto de causas antrópicas relacionadas ao uso e cobertura da terra. Neste sentido, o emprego de modelos matemáticos em estudos ambientais gera importantes contribuições científicas ao planejamento or

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15

Thurley, Matthew J. (Matthew John) 1971. "Three dimensional data analysis for the separation and sizing of rock piles in mining." Monash University, Dept. of Electrical and Computer Systems, 2002. http://arrow.monash.edu.au/hdl/1959.1/7855.

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16

Levy, Nina Hannah. "Modelling multi-directional behaviour of piles using energy principles." University of Western Australia. Dept. of Civil and Resource Engineering, 2007. http://theses.library.uwa.edu.au/adt-WU2007.0211.

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The loads applied to pile foundations installed offshore vary greatly from those encountered onshore, with more substantial lateral and torsional loads. For combined axial and lateral loading the current design practice involves applying an axial load to a deep foundation and assessing the pile behaviour and then considering a lateral load separately. For the problem of an altering directions of lateral loads (e.g. due to changes in the wind directions acting on offshore wind turbines) a clear design procedure is not available. There is thus a need for a clearly established methodology to effe

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17

Weatherford, Jonathan Michael. "Hydrogeologic Investigation of a Pumice Aquifer, Fremont/Winema National Forest, Oregon." PDXScholar, 2015. https://pdxscholar.library.pdx.edu/open_access_etds/2479.

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The middle Holocene cataclysmic eruption of Mount Mazama blanketed Walker Rim, in south central Oregon, with 270 cm to 300 cm of pumice, causing capture of surface water systems by groundwater, stream relocation, and the formation of biologically diverse fens and seasonal wetlands. The pumice aquifer at Round Meadow, an 8.6 km2 basin, hosts both a fen and seasonally ponded wetlands. The Round Meadow watershed lies within a closed basin between the upper Klamath and Deschutes river basins. As the highest meadow at Walker Rim, it is a relatively well-constrained system to study the effects of hy

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18

Zhang, Dongxiao. "Conditional stochastic analysis of solute transport in heterogeneous geologic media." Diss., The University of Arizona, 1993. http://hdl.handle.net/10150/186553.

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This dissertation develops an analytical-numerical approach to deterministically predict the space-time evolution of concentrations in heterogeneous geologic media conditioned on measurements of hydraulic conductivities (transmissivities) and/or hydraulic heads. Based on the new conditional Eulerian-Lagrangian transport theory by Neuman, we solve the conditional transport problem analytically at early time, and express it in pseudo-Fickian form at late time. The stochastically derived deterministic pseudo-Fickian mean concentration equation involves a conditional, space-time dependent dispersi

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19

Romanó, James Luigi. "Modelo numérico para determinação de zonas de perda de circulação de fluido de perfuração em poços de petróleo." Universidade Tecnológica Federal do Paraná, 2017. http://repositorio.utfpr.edu.br/jspui/handle/1/2631.

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Durante a perfuração de poços de petróleo, a determinação do perfil de temperaturas no poço é importante para tomada de decisões relativas ao processo de cimentação, para a seleção de revestimento do poço e equipamentos e, sobretudo, na identificação de zonas de influxo e perda de circulação. Neste trabalho é proposto um modelo matemático da transferência de calor em regime transitório do escoamento de fluido de perfuração em poços fraturados com perda de circulação. O poço é representado de maneira simplificada através de um cilindro anular concêntrico, cuja parede externa (interface poço-for

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20

Zhang, You-Kuan. "A quasilinear theory of time-dependent nonlocal dispersion in geologic media." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/185039.

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A theory is presented which accounts for a particular aspect of nonlinearity caused by the deviation of plume "particles" from their mean trajectory in three-dimensional, statistically homogeneous but anisotropic porous media under an exponential covariance of log hydraulic conductivities. Quasilinear expressions for the time-dependent nonlocal dispersivity and spatial covariance tensors of ensemble mean concentration are derived, as a function of time, variance σᵧ² of log hydraulic conductivity, degree of anisotropy, and flow direction. One important difference between existing linear theorie

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21

Chauvet, Pierre. "Elements d'analyse structurale des fai-k a 1 dimension." Paris, ENMP, 1987. http://www.theses.fr/1987ENMP0070.

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L'information structurale d'une fai d'ordre k definie sur une maille reguliere monodimensionnelle est contenue dans ses accroissements d'ordre k+1. On cherche a etablir la relation entre les covariances d'accroissements (experiences) et la covariance generalisee (modele) et a l'utiliser dans les deux sens. Une tentative d'expliciter la covariance generalisee a l'aide du variogramme generalise s'est soldee par un echec

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22

Price, Matthew. "Investigating the initial condition of mantle models using data assimilation." Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/96504/.

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Mantle convection models are computational models that utilise the equations defining the convective processes taking place in a terrestrial planet’s mantle. Mantle circulation models (MCMs) are a subclass of mantle convection models that constrain mantle flow by imposing a boundary condition that uses plate reconstructions. Time dependent assimilation of plate velocities generates structures within the mantle that have been shown to correspond with present day Earth observations. Inferences of past mantle structures in MCMs are however more difficult due to the lack of initial condition for m

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23

Orr, Shlomo. "Stochastic approach to steady state flow in nonuniform geologic media." Diss., The University of Arizona, 1993. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1993_409_sip1_w.pdf&type=application/pdf.

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24

Geyer, Traver Adelina. "Dynamics and structural evolution of collapse calderas: A comparison between field evidence, analogue and mathematical models." Doctoral thesis, Universitat de Barcelona, 2007. http://hdl.handle.net/10803/1921.

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Collapse calderas are defined as the volcanic depression that result from the disruption of the geometry of the magma chamber roof due to down faulting during the course of an eruption. These structures have received considerable attention due to their link to Earth's ore deposits and geothermal energy resources, but also because large pyroclastic eruptions and associated caldera collapse structures represent one of the most catastrophic geologic events that have occurred on the Earth's surface in the Phanerozoic time and in the historical time.<br/>After several pioneering works, collapse cal

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25

Yang, Xin-She. "Mathematical modelling of compaction and diagenesis in sedimentary basins." Thesis, University of Oxford, 1997. http://ora.ox.ac.uk/objects/uuid:0bdc6c43-4534-4f08-97e2-8a33d6b13e61.

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Sedimentary basins form when water-borne sediments in shallow seas are deposited over periods of millions of years. Sediments compact under their own weight, causing the expulsion of pore water. If this expulsion is sufficiently slow, overpressuring can result, a phenomenon which is of concern in oil drilling operations. The competition between pore water expulsion and burial is complicated by a variety of factors, which include diagenesis (clay dewatering), and different modes (elastic or viscous) of rheological deformation via compaction and pressure solution, which may also include hysteres

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26

Sancevero, Sergio Sacani. "Estudo de aplicação de metodos quantitativos em dados sismicos no processo de caracterização integrada de reservatorios." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/287444.

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Orientador: Armando Zaupa Remacre<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Geociencias<br>Made available in DSpace on 2018-08-09T03:37:21Z (GMT). No. of bitstreams: 1 Sancevero_SergioSacani_D.pdf: 13993022 bytes, checksum: beb2507aee5ca130897dad57c706b2a9 (MD5) Previous issue date: 2007<br>Resumo: O processo de caracterização de reservatórios é atualmente uma das etapas mais importantes na exploração, desenvolvimento e produção de um campo. Porém, para que esse processo seja realizado da melhor forma possível é preciso se ter o conhecimento de determinados método

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27

Talebi, Hassan. "On the spatial modelling of mixed and constrained geospatial data." Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2018. https://ro.ecu.edu.au/theses/2279.

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Spatial uncertainty modelling and prediction of a set of regionalized dependent variables from various sample spaces (e.g. continuous and categorical) is a common challenge for geoscience modellers and many geoscience applications such as evaluation of mineral resources, characterization of oil reservoirs or hydrology of groundwater. To consider the complex statistical and spatial relationships, categorical data such as rock types, soil types, alteration units, and continental crustal blocks should be modelled jointly with other continuous attributes (e.g. porosity, permeability, seismic veloc

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28

Romary, Thomas. "INVERSION DES MODELES STOCHASTIQUES DE MILIEUX HETEROGENES." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2008. http://tel.archives-ouvertes.fr/tel-00395528.

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La problématique du calage d'historique en ingénierie de réservoir, c'est-à-dire le calage des modèles géostatistiques aux données de production, est un problème inverse mal posé. Dans un cadre bayésien, sa résolution suppose l'inférence de la distribution de probabilité du modèle géostatistique conditionné aux données dynamiques, rendant compte à la fois de l'a priori géologique, exprimé dans le modèle géostatistique, et de l'adéquation aux données de production. Typiquement, la résolution de ce problème passe par la génération d'un ensemble de réalisations calées aux données, échantillon rep

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29

MOUSAVI, NADOSHANI SEYED SAEID. "Composition des lois élémentaires en hydrologie régionale : application à l'étude des régimes de crue." Grenoble 1, 1997. http://www.theses.fr/1997GRE10165.

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Un evenement hydrologique est souvent defini d'apres plusieurs variables aleatoires presentant un certain degre de liaison. L'etude probabiliste de cet evenement necessite alors la composition de lois de probabilite. Nous avons considere deux cas d'applications : 1) l'extrapolation de la distribution du debit de pointe et du debit seuil ; 2) l'estimation du quantile du debit de crue a l'aval d'une confluence. Nous avons teste plusieurs fonctions de deux variables : les modeles de farlie-gumbel-morgenstern, de farlie et hashino, en utilisant des echantillons sup-seuil. Pour ce dernier modele, n

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Taverna, Joël. "Modélisation mécanique des déformations de la lithosphère." Grenoble 1, 1998. http://www.theses.fr/1998GRE10084.

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Les objectifs de cette these sont de decrire les mecanismes de deformations de la lithosphere en regime compressif, et le controle impose par les parametres mecaniques sur la maniere dont le raccourcissement horizontal est accommode (par la formation de plis, de chevauchements, ou encore par epaississement homogene). Nous avons etudie la nature des instabilites susceptibles de se developper en utilisant des calculs analytiques bases sur la resolution des equations de navier-stokes ainsi que leur evolution pour des taux de deformation importants a partir de modeles analogiques et de calculs num

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31

Taha, Ammar. "Etude expérimentale et numérique de la contribution des eaux infiltrées à la formation des débits des crues en zone méditerranéenne : application à un versant du Real Collobrier." Université Joseph Fourier (Grenoble), 1995. http://www.theses.fr/1995GRE10052.

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L'objectif de ce travail est de contribuer a la comprehension du fonctionnement hydrologique d'un bassin versant mediterraneen, notamment a l'occasion de ses crues. Il est compose d'un premier volet experimental destine a l'observation du comportement des eaux souterraines. Ce volet inclut des mesures de pression de l'eau dans le sol et de niveaux des nappes (fugitives ou perennes) sous un versant (ligne de plus grande pente perpendiculaire a la riviere), et une analyse approfondie des sols du versant: granulometries, conductivites hydrauliques in situ mesurees a l'aide de differents appareill

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Hood, Julie A. "Fracture estimation in anisotropic media." Thesis, 1990. http://hdl.handle.net/10125/9834.

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Le, Calvez Joel Herve. "Physical modeling of normal faults and graben relays above salt." 2002. http://wwwlib.umi.com/cr/utexas/fullcit?p3114767.

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McQueen, Herbert William Scriven. "Geophysical inference of inplane stress in the lithosphere using numerical models." Phd thesis, 1986. http://hdl.handle.net/1885/140395.

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Philip, Zeno George. "Incorporating subcritical crack growth mechanics into natural fracture characterization for improved reservoir simulation." Thesis, 2003. http://hdl.handle.net/2152/860.

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Burbidge, David Ross. "The complex evolution of accretionary wedges and thrust belts : results from numerical experiments using the distinct element method." Phd thesis, 2000. http://hdl.handle.net/1885/148094.

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Shi, Mingjuan. "Characterizing heterogeneity in low-permeability strata and its control on fluid flow and solute transport by thermalhaline free convection." Thesis, 2005. http://repositories.lib.utexas.edu/bitstream/handle/2152/1724/shim98915.pdf.

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38

Stenhouse, Iona Rosslyn. "Diffusion modelling to constrain the duration of metamorphism." Phd thesis, 2013. http://hdl.handle.net/1885/155999.

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In this study the application of the garnet-ilmenite system to the diffusion modelling technique was investigated. Experiments were undertaken to accurately determine the rates of geochemical processes that are associated with the garnet-ilmenite system. The diffusion parameters of elements within ilmenite have been quantified and it was found that the diffusivity is relatively fast compared to garnet. Therefore in a garnet-ilmenite diffusion model ilmenite diffusivity can be treated as infinite. Additionally, experiments on garnet with an ilmenite thin film as a diffusant source provided furt

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Tian, Xiaochuan. "Structural and Climatic Effects of Large-Scale Basaltic Magmatism: Constraints and Insights from Geodynamic Models." Thesis, 2021. https://doi.org/10.7916/d8-2dvc-e762.

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This thesis concerns the causes and consequences of magma emplacement in the Earth’slithosphere during the formation of Large Igneous Provinces (LIPs) and continental rifts. Motivated by geological, geophysical, geochemical and paleoclimate data, I formulate geodynamic models to address the following questions: (1) How were the massive volumes of subaerially erupted lava, described in multi-channel seismic data as seaward-dipping reflectors (SDRs), formed and what can SDRs tell us about the rifting processes? (2) What thermal and rheological conditions are required to produce the contrast in t

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Zhou, Shaohua. "Geophysical investigations on the formation mechanism of the Eromanga Baisn, Australia / by Shaohua Zhou." Thesis, 1991. http://hdl.handle.net/2440/19778.

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Zhou, Shaohua. "Geophysical investigations on the formation mechanism of the Eromanga Baisn, Australia / by Shaohua Zhou." 1991. http://hdl.handle.net/2440/19778.

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Bibliography : leaves 214-246.<br>xiii, 246 leaves : ill., maps ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Geology and Geophysics, 1992

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Bye, Alan Russell. "The development and application of a 3D geotechnical model for mining optimisation Sandsloot open pit platinum mine South Africa." Thesis, 2003. http://hdl.handle.net/10413/4114.

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Detailed geological knowledge is often a major unknown factor in open pit mining and design, and therefore poses a significant risk in the mining venture. As the knowledge of the geology improves so the risk of unforeseen conditions reduces and therefore safety and productivity can be increased. Historically, geotechnical methods and information have predominantly been used exclusively for pit slope optimisation. This research documents the procedures and developments undertaken to compile a comprehensive geotechnical database, and the application of the geotechnical data to open pit mining, b

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Gai, Xiuli 1970. "A coupled geomechanics and reservoir flow model on parallel computers." Thesis, 2004. http://hdl.handle.net/2152/1187.

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Caritat, de Peruzzis Patrice de. "Aspects of sediment diagenesis : empirical investigation (Denison Trough, Queensland) and theoretical modelling." Phd thesis, 1990. http://hdl.handle.net/1885/140634.

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Rasmi, S. N. "Importance Of Lateral Flow In Groundwater Modeling : A Case Study Of Hard Rock Aquifer Of Gundal Sub Basin." Thesis, 2005. https://etd.iisc.ac.in/handle/2005/1492.

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Rasmi, S. N. "Importance Of Lateral Flow In Groundwater Modeling : A Case Study Of Hard Rock Aquifer Of Gundal Sub Basin." Thesis, 2005. http://etd.iisc.ernet.in/handle/2005/1492.

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Jaaback, Kathryn Margaret. "A two-dimensional hydrodynamic model for the St Lucia Estuary mouth." Thesis, 1993. http://hdl.handle.net/10413/5907.

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The reduced fresh water input into the St Lucia Estuary combined with the increase of sediment in the St Lucia Lake System has necessitated the implementation of a dredging programme. To ensure the effectiveness of the dredging programme, the behaviour of the sediment under various flow and tidal conditions needs to be determined. To establish how sediment will move, it is necessary to understand the hydrodynamics of the estuary. To achieve this, a hydrodynamic model which can be linked to a sediment transport model needs to be developed. Various existing types of hydrodynamic and sediment tra

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Ushendibaba, Mhaka. "Using electromagnetic methods to map and delineate high-grade harzburgite pods within the Ni-Cu mineralised Jacomynspan ultramafic sill, Northen Cape, South Africa." Thesis, 2016. http://hdl.handle.net/10539/21007.

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A dissertation submitted to the Faculty of Science, University of the Witwatersrand, Johannesburg, in fulfilment of the requirements for the degree of Master of Science. Johannesburg, 2016.<br>The Jacomynspan Ni-Cu sulphide mineralisation is hosted within a 100m thick steeply dipping tabular, differentiated, sill of mafic to ultramafic composition intruded into country gneissic rocks of the Namaqualand Metamorphic complex. This sill is predominantly composed of tremolite schist (metamorphosed pyroxenite) containing lenticular bodies of harzburgite. The harzburgite generally hosts net-textur

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Braunmiller, Jochen. "Down-dip geometry and depth extent of normal faults in the Aegean-evidence from earthquakes." Thesis, 1991. http://hdl.handle.net/1957/29365.

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Spießl, Sabine Maria. "Development and evaluation of a reactive hybrid transport model (RUMT3D)." Doctoral thesis, 2004. http://hdl.handle.net/11858/00-1735-0000-0006-B309-D.

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