Log in

Relevant bibliographies by topics / Geophysical modelling / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Geophysical modelling.

Dissertations / Theses on the topic 'Geophysical modelling'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Geophysical modelling.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Mirza, Nabeel Aman. "Geophysical modelling of sediment permeability." Thesis, Bangor University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.280908.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Vermeesch, Peggy Marie-Therese. "Geophysical modelling of the Chicxulub crater." Thesis, Imperial College London, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.429105.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Hewitt, Ian. "Mathematical modelling of geophysical melt drainage." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.509957.

Full text

Abstract:

Fluid flows involving transport of a liquid phase in close proximity with its solid phase involve continuous transfer of mass and heat, which can influence the nature of the drainage that occurs. We consider mathematical models for two such situations; magma flow in the mantle and water flow beneath glaciers. In part I, we derive a model for porous flow within a partially molten column of mantle undergoing decompression melting. By ignoring composition effects, and by scaling the equations appropriately, approximate analytical solutions can be found for one-dimensional upwelling, which allow t

APA, Harvard, Vancouver, ISO, and other styles

4

Johansson, Linnéa. "Modelling and interpretation of VTEM data from Soppero, Sweden." Thesis, Luleå tekniska universitet, Geovetenskap och miljöteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-64879.

Full text

Abstract:

The geological and geophysical knowledge about the northernmost part of Sweden has recently increased due to the Barents project, which includes acquisition of modern geophysical and geological information on behalf of the Swedish Geological Survey (SGU). During August 2013, a helicopter-borne versatile time domain electromagnetic (VTEM) survey was performed by Geotech Ltd, in the Soppero area northeast of Kiruna. From the VTEM measurements, a number of TEM anomalous zones have been identified and two of them are located south and southeast of the Lannavaara village. The main conductive featur

APA, Harvard, Vancouver, ISO, and other styles

5

Grinc, Michal. "Lithospheric structure in Central Europe : integrated geophysical modelling." Phd thesis, Université Paris Sud - Paris XI, 2013. http://tel.archives-ouvertes.fr/tel-00921044.

Full text

Abstract:

The main aim of this thesis is to gain new knowledge about the lithospherical structure and tectonics of the Carpathian-Pannonian Basin region. We applied three different methods: 1Dautomatic modelling, 2D integrated geophysical modelling and 3D inversion to achieve this goal.These methods are similar concerning the used databases but differ by used processing andinterpretation. At first we apply 1D automatic modelling to get a very first overview of thestudied region. Secondly, we apply 2D integrated modelling of the lithosphere which combines the interpretation of surface heat flow, geoid, g

APA, Harvard, Vancouver, ISO, and other styles

6

Eid, Rami Samir. "Numerical modelling of geophysical monitoring techniques for CCS." Thesis, University of Edinburgh, 2016. http://hdl.handle.net/1842/22049.

Full text

Abstract:

I assess the potential of seismic and time-domain controlled-source electromagnetic (CSEM) methods to monitor carbon dioxide (CO2) migration through the application of a monitorability workflow. The monitorability workflow describes a numerical modelling approach to model variations in the synthetic time-lapse response due to CO2 migration. The workflow consists of fluid-flow modelling, rock-physics modelling and synthetic seismic or CSEM forward modelling. I model CO2 injected into a simple, homogeneous reservoir model before applying the workflow to a heterogeneous model of the Bunter Sandst

APA, Harvard, Vancouver, ISO, and other styles

7

Rossi, Daniele <1984&gt. "Techniques for Lagrangian modelling of dispersion in geophysical flows." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amsdottorato.unibo.it/6356/.

Full text

Abstract:

Basic concepts and definitions relative to Lagrangian Particle Dispersion Models (LPDMs)for the description of turbulent dispersion are introduced. The study focusses on LPDMs that use as input, for the large scale motion, fields produced by Eulerian models, with the small scale motions described by Lagrangian Stochastic Models (LSMs). The data of two different dynamical model have been used: a Large Eddy Simulation (LES) and a General Circulation Model (GCM). After reviewing the small scale closure adopted by the Eulerian model, the development and implementation of appropriate LSMs is out

APA, Harvard, Vancouver, ISO, and other styles

8

Dehler, Sonya Astrid. "Integrated geophysical modelling of the northern Cascadia subduction zone." Thesis, University of British Columbia, 1991. http://hdl.handle.net/2429/30798.

Full text

Abstract:

The northern Cascadia subduction zone involves convergence of the Explorer Plate and northern part of the Juan de Fuca Plate with the North American Plate along a margin lying west of Vancouver Island, Canada. A wide accretionary complex which underlies the continental slope and shelf has been formed. Two allochthonous terranes, the Crescent Terrane of Eocene oceanic crustal volcanics and the Pacific Rim Terrane of Mesozoic melange sedimentary rocks and volcanics, lie against the Wrangellia Terrane backstop beneath the west coast of Vancouver Island and outcrop on the southern tip of the islan

APA, Harvard, Vancouver, ISO, and other styles

9

Tsourlos, Panagiotis. "Modelling, interpretation and inversion of multielectrode resistivity survey data." Thesis, University of York, 1995. http://etheses.whiterose.ac.uk/14017/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Bassford, Robin Paul. "Geophysical and numerical modelling investigations of the ice caps in Severnaya Zemlya." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.271872.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Marello, Laura. "Basin Architecture and Lithospheric Structure of the Barents Sea Region from Geophysical Modelling." Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for petroleumsteknologi og anvendt geofysikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-17309.

Full text

Abstract:

This thesis provided a new understanding of the lithospheric structural setting and anomalies observed in the greater Barents Sea. The Barents Sea has been focus of attention for geological and economical reason since the 70ies-80ies. The crustal and lithospheric evolution of this area has been poorly understood and relatively challenging because it involved a large number of different processes. During its evolution, plate aggregation and orogenesis have been alternated with episodic rifting and magmatic events. The final result is the present day continental shelf area formed by a heterogene

APA, Harvard, Vancouver, ISO, and other styles

12

James, P. M. "Feasibility assessment and informed survey design of cavity detection by forward geophysical modelling." Thesis, University College London (University of London), 2017. http://discovery.ucl.ac.uk/1559861/.

Full text

Abstract:

Feasibility analysis of near-surface cavity detection is presented using modelling of the gravity, gravity gradient, magnetic, magnetic gradient, and ground penetrating radar techniques. The geophysical signal is modelled over typical cavity shapes in three-dimensional subsurface environments with varying geologies and survey parameters. The cavity detection probability is calculated for each technique in the outlined environments and these values are used to aid technique choice, assess the feasibility of cavity detection, assess the limits of detection for each technique, and optimise survey

APA, Harvard, Vancouver, ISO, and other styles

13

Cobden, Laura Jacqueline. "Geophysical Inverse Modelling of the Internal Structure of the Sun and the Earth." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/4654.

Full text

Abstract:

Seismology is arguably the most powerful technique for probing the interior of planetary bodies. On the Sun, this is a relatively new field (helioseismology), in which cross-correlation is used to extract coherent signals from random seismic noise. Here, I test the validity of the cross-correlation technique. The structure of the cross-correlated signal is only marginally different from the uncorrelated signal of a single source. However, large amounts of data must be averaged in order to produce a clear signal. A comparison of travel-time tomography utilising the cross-correlation approach, w

APA, Harvard, Vancouver, ISO, and other styles

14

Ström, Tobias. "A geophysical study of the Mertainen area : Modelling and interpretation of primarily aeromagnetic data." Thesis, Luleå tekniska universitet, Geovetenskap och miljöteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-63850.

Full text

Abstract:

Nautanen Deformation Zone, is a prominent deformation zone in the Malmfälten area, which is of importance to understand for mineral exploration purposes. In spite of diverse geophysical data being available in Malmfälten and the good correlation between airborne measurements and geological observations, the area has not been fully investigated in detail using the aforementioned available data. A geological feature in connection with the Mertainen magnetite-breccia apatite iron ore deposit has been studied. Methods include the study of geological maps, the study of analytic signals of magnetic

APA, Harvard, Vancouver, ISO, and other styles

15

Harrison, Fiona Anne. "Seismic response to sedimentary facies variation." Thesis, University of Aberdeen, 1997. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU089772.

Full text

Abstract:

This project investigates the seismic response to facies variation by modelling facies variation itself, using two different modelling techniques, and then by modelling the seismic response to this variation. This study looks at a new set of attributes, examines their potential both as standard seismic attributes (a qualitative approach), and uses geostatistical analysis to further develop the ability of these attributes to differentiate the seismic response to facies variation. Sedpak, a basin modelling package was used to try to create facies models as a basis for further geophysical modelli

APA, Harvard, Vancouver, ISO, and other styles

16

Shepley, Karen Anne Bernice. "Regional geophysical modelling and paleo-reconstruction in and around the southern Slave Structural Province." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0020/MQ57172.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Akinci, Levent. "An Analytical Modelling Approach to Test if a Rising Salt Diapir Triggered The Cape Fear Landslide." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1448988088.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Hill, Alexander Mackay. "Computational Investigations of Earth Viscosity Structure Using Surficial Geophysical Observables Related to Isostatic Adjustment." Thesis, Université d'Ottawa / University of Ottawa, 2020. http://hdl.handle.net/10393/41203.

Full text

Abstract:

The research presented in this thesis seeks to address meaningful geodynamic problems related to the viscosity structure of the Earth’s interior. Isostatic adjustment is a process which is dependent upon the mechanical properties of the lithosphere and mantle. By performing computational simulations of the isostatic response for various surface-loading scenarios and numerous viscosity structures, insight can be gained into the mechanical structure of the Earth and geodynamic processes related to that structure. The modelled isostatic signal for a given set of Earth model parameters can be comp

APA, Harvard, Vancouver, ISO, and other styles

19

Zhang, Yicheng. "Integration of a web processing service (WPS), GIS and hydraulic modelling (TELEMAC) for geophysical analysis." Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/2003399/.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Lopes, Cardozo Gideon Gerrit Oscar. "3-D geophysical imaging and tectonic modelling of active tectonics of the Upper Rhine Grabe Region." Université Louis Pasteur (Strasbourg) (1971-2008), 2003. http://www.theses.fr/2003STR13213.

Full text

Abstract:

Le Fossé Rhénan Supérieur est considéré comme une example classique d'un fossé d'enffondrement continental. Le fossé est caractérisé par une activité sismique élevée dans l'avant-pays de la cha\^ine Alpine, qui est relativement calme au niveau sismique. Les tremblements de Terre sont le résultat direct de l'activité des failles dans le fossé sous une régime de compression résultant de la collision des plaques continentales Africaine et Européenne. Cette thèse présente une étude ciblée sur les failles qui sont responsables des tremblements de Terre, et sur la tectonique à grande échelle qui est

APA, Harvard, Vancouver, ISO, and other styles

21

Bailey, Joseph John. "Advancing biodiversity and species distribution modelling using geodiversity information." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/51704/.

Full text

Abstract:

Context: Understanding spatial patterns of biodiversity and species’ distributions is important for scientific theory, and for conservation and management of the natural world. Climatic variables are widely recognised as strong correlates of species richness over large spatial extents. Correlates of species richness at smaller extents (regional and landscape scales) are less well established, but environmental heterogeneity is widely thought to be important. A large number of environmental heterogeneity measures have been used, but in particular there is a growing interest in ‘geodiversity’, w

APA, Harvard, Vancouver, ISO, and other styles

22

Yaccup, Rahman. "The spatial characterisation of contaminant distribution found at industrial sites using combined geophysical / hydrogeological fieldstudies and laboratory modelling." Thesis, Cardiff University, 2012. http://orca.cf.ac.uk/30073/.

Full text

Abstract:

Integrated geophysical, geochemical and hydrogeological modelling techniques have been used in this PhD research study to characterise the ground contamination at four study sites. The primary aim of the research is to study the efficiency of using an integrated approach to study hydrocarbon and heavy metal contamination in the subsurface soil, geology and groundwater systems. Each of the four sites have different industrial legacies (hence types of contamination) and periods of operation. The sites in increasing age are: Bromsgrove landfill, Cathays Railway Depot, Barry Docks and Weston-Super

APA, Harvard, Vancouver, ISO, and other styles

23

Sheffer, Megan Rae. "Forward modelling and inversion of streaming potential for the interpretation of hydraulic conditions from self-potential data." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/235.

Full text

Abstract:

The self-potential method responds to the electrokinetic phenomenon of streaming potential and has been applied in hydrogeologic and engineering investigations to aid in the evaluation of subsurface hydraulic conditions. Of specific interest is the application of the method to embankment dam seepage monitoring and detection. This demands a quantitative interpretation of seepage conditions from the geophysical data. To enable the study of variably saturated flow problems of complicated geometry, a three-dimensional finite volume algorithm is developed to evaluate the self-potential distributio

APA, Harvard, Vancouver, ISO, and other styles

24

Pappa, Folker [Verfasser], Jörg [Akademischer Betreuer] Ebbing, and der Wal Wouter [Gutachter] van. "The Lithospheric Structure of Antarctica from Geophysical–Petrological Modelling / Folker Pappa ; Gutachter: Wouter van der Wal ; Betreuer: Jörg Ebbing." Kiel : Universitätsbibliothek Kiel, 2020. http://d-nb.info/1203127715/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Pappa, Folker Verfasser], Jörg [Akademischer Betreuer] [Ebbing, and der Wal Wouter [Gutachter] van. "The Lithospheric Structure of Antarctica from Geophysical–Petrological Modelling / Folker Pappa ; Gutachter: Wouter van der Wal ; Betreuer: Jörg Ebbing." Kiel : Universitätsbibliothek Kiel, 2020. http://d-nb.info/1203127715/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Warren, Craig. "Numerical modelling of high-frequency ground-penetrating radar antennas." Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/4074.

Full text

Abstract:

Ground-Penetrating Radar (GPR) is a non-destructive electromagnetic investigative tool used in many applications across the fields of engineering and geophysics. The propagation of electromagnetic waves in lossy materials is complex and over the past 20 years, the computational modelling of GPR has developed to improve our understanding of this phenomenon. This research focuses on the development of accurate numerical models of widely-used, high-frequency commercial GPR antennas. High-frequency, highresolution GPR antennas are mainly used in civil engineering for the evaluation of structural f

APA, Harvard, Vancouver, ISO, and other styles

27

Sasgen, Ingo [Verfasser]. "Present-day ice-mass change and glacial-isostatic adjustment in the polar regions from satellite gravimetry and geophysical modelling / Ingo Sasgen." Berlin : Freie Universität Berlin, 2009. http://d-nb.info/1023782235/34.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Molinaro, Matteo. "Geometry and kinematics of the SE Zagros Mountains (Iran) : structural geology and geophysical modelling in a young collisional fold-thrust belt." Paris 11, 2004. http://www.theses.fr/2004PA112177.

Full text

Abstract:

L'objectif de cette thèse est l'étude de la structure et la cinématique du Zagros oriental (Iran) et de la zone de transition avec le prisme du Makran appelée syntaxe de Bandar Abbas. Une étude structurale de terrain a permis de mettre en évidence le contrôle exercé par la stratigraphie mécanique - et donc les conditions paleogéographiques - sur le style structural d'un côté à l'autre de la syntaxe. La restauration de la première coupe équilibrée à travers le sud-est de la ceinture du Zagros permet de montrer que le Zagros plissé a subi deux phases téctoniques majeures, une première impliquant

APA, Harvard, Vancouver, ISO, and other styles

29

Wobus, Fred. "The dynamics of dense water cascades : from laboratory scales to the Arctic Ocean." Thesis, University of Plymouth, 2013. http://hdl.handle.net/10026.1/1610.

Full text

Abstract:

The sinking of dense shelf waters down the continental slope (or “cascading”) contributes to oceanic water mass formation and carbon cycling. Cascading is therefore of significant importance for the global overturning circulation and thus climate. The occurrence of cascades is highly intermittent in space and time and observations of the process itself (rather than its outcomes) are scarce. Global climate models do not typically resolve cascading owing to numerical challenges concerning turbulence, mixing and faithful representation of bottom boundary layer dynamics. This work was motivated by

APA, Harvard, Vancouver, ISO, and other styles

30

Torikka, Niklas. "3D Modelling of TEM Data : from Rajapalot Gold-Cobalt prospect, northern Finland." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-75756.

Full text

Abstract:

The Rajapalot gold-cobalt project in northern Finland is an exciting, relatively new discovery, still being explored with hopes to start mining in the future. The area was found by a IP/Resistivity survey in 2013. Extensive geophysical follow-up surveys have delineated several electromagnetic targets, one of which, named Raja, is the target anomaly this master thesis is built upon. A TEM survey was carried out during late August to early September 2018. The data collected was analyzed, processed and later modelled in Maxwell using Leroi, a CSIRO module. Three separate models are produced with

APA, Harvard, Vancouver, ISO, and other styles

31

Jrad, Abir. "Application des méthodes géophysiques à la prospection archéologique." Thesis, Aix-Marseille, 2014. http://www.theses.fr/2014AIXM4301.

Full text

Abstract:

Ce travail de thèse porte sur la recherche géophysique de la proche sub-surface appliquée aux objets et structures archéologiques. L'objectif est de définir une méthodologie d'étude géophysique de sites archéologiques dans un contexte Méditerranéen : en France et en Tunisie, ainsi que " l'empreinte géophysique " des principaux objets archéologiques. La méthode géophysique principale utilisée est la méthode magnétique. Les cartographies magnétiques obtenues sont couplées aux cartographies et mesures électromagnétiques et aux tomographies électriques (ERT) et sismiques. Ce volet de prospection s

APA, Harvard, Vancouver, ISO, and other styles

32

Mannschatz, Theresa. "Site evaluation approach for reforestations based on SVAT water balance modeling considering data scarcity and uncertainty analysis of model input parameters from geophysical data." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-175309.

Full text

Abstract:

Extensive deforestations, particularly in the (sub)tropics, have led to intense soil degradation and erosion with concomitant reduction in soil fertility. Reforestations or plantations on those degraded sites may provide effective measures to mitigate further soil degradation and erosion, and can lead to improved soil quality. However, a change in land use from, e.g., grassland to forest may have a crucial impact on water balance. This may affect water availability even under humid tropical climate conditions where water is normally not a limiting factor. In this context, it should also be con

APA, Harvard, Vancouver, ISO, and other styles

33

Al-Gezeri, Salem Mohammed. "Modelling of multivariate data in archaeological geophysics." Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.427765.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Cocks, David. "Mathematical modelling of dune formation." Thesis, University of Oxford, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.442818.

Full text

Abstract:

This study is concerned with the mathematical modelling of the formation and subsequent evolution of sand dunes, both beneath rivers (fluvial) and in deserts (Aeolian). Dunes are observed in the environment in many different shapes and sizes; we begin by discussing qualitatively how and why the different forms exist. The most important aspect of a successful model is the relationship between the bed shape and the shear stress that the flow exerts on the bed. We first discuss a simple model for this stress applied to fluvial dunes, which is able to predict dune-like structures, but does not pre

APA, Harvard, Vancouver, ISO, and other styles

35

Gregotski, Mark Edward. "Fractal stochastic modelling of airborne magnetic data." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74300.

Full text

Abstract:

Airborne magnetic field data exhibit downward continued power spectra of the form $1/f sp beta$ (where f is the spatial frequency and $ beta$ is a non-negative real number). This form of spectrum is observed for magnetic data recorded over a range of sampling scales from various areas of the Canadian Shield. Two scaling regimes have been discovered. The first has a $ beta$ value near 3 for wavelengths $ sbsp{ sim}{$25 km. These results suggest a "variable fractal" description of the distribution of near-surface magnetic sources.<br>From a data modelling viewpoint, the magnetic measurements are

APA, Harvard, Vancouver, ISO, and other styles

36

Reston, Timothy John. "Modelling and interpretation of crustal reflections." Thesis, Royal Holloway, University of London, 1988. http://repository.royalholloway.ac.uk/items/19a8f7f8-fa52-4af7-9753-33f4a5b026e0/1/.

Full text

Abstract:

Deep seismic reflection profiling has revealed reflective upper crustal structures, often interpreted as faults or shear zones, and sometimes a strongly reflective lower crust. This thesis investigates what crustal reflections represent, and to what extent seismic sections can be used to investigate a three-dimensional Earth. The lower crust often consists of reflective bands and transparent zones. An analogy is drawn between the geometry of reflective bands seen in the lower crust and the orientation of shear zones likely to develop in a plastic lower crust during both bulk pure and simple sh

APA, Harvard, Vancouver, ISO, and other styles

37

Vogt, Declan Richard. "The modelling and design of radio tomography antennas." Thesis, University of York, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326419.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Sainoki, Atsushi. "Dynamic modelling of mining-induced fault-slip." Thesis, McGill University, 2014. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=123291.

Full text

Abstract:

In deep hard rock mines where high stress conditions take place, rockbursts are serious problems because rockbursts could result in severe damage to mine openings. It is widely recognized that mining activities could reactivate faults in underground mines. The reactivation of faults could then cause fault-slip. More importantly, fault-slip gives rise to seismic waves, which inflict severe damage to mine openings. Because the generation and propagation of seismic waves are dynamic phenomena, fault-slip needs to be also dealt with as a dynamic phenomenon. Both of the static and dynamic behaviour

APA, Harvard, Vancouver, ISO, and other styles

39

Harbison, John Edwin. "Groundwater chemistry and hydrological processes within a Quaternary coastal plain: Pimpama, Southeast Queensland." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16647/.

Full text

Abstract:

The Pimpama estuarine plain in subtropical southeast Queensland is comprised of Quaternary sediments infilling older bedrock. These multilayered unconsolidated sediments have various depositional origins, and are highly heterogeneous. The plain is low-lying and the surface drainage is controlled by flood mitigation measures including tidal gates and channelised streams. The control of surface drainage potentially affects the shallow water table. This modification of hydrology has implications for future viability of agriculture and also the environmental health of waterways. Increased landscap

APA, Harvard, Vancouver, ISO, and other styles

40

Qiu, Xuelin. "Lithospheric structure of southern Africa from seismic waveform modelling." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.264286.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Guerrero, Olivier. "Comparaison et couplage de méthodes géophysiques pour l'amélioration des reconnaissances des sols dans les projets géotechniques en milieu périurbain." Thesis, Bordeaux, 2014. http://www.theses.fr/2014BORD0137/document.

Full text

Abstract:

Dans le cadre d’un projet d’aménagement, la reconnaissance du sous-sol est une étape prépondérante pour la construction d’un bâtiment. Le géotechnicien se doit de définir le comportement mécanique des sols à partir d’un nombre limité de sondages. La problématique soulevée par les prospections géotechniques est qu’il est difficile d’une part d’étendre une information ponctuelle dans l’environnement proche des sondages, et d’autre part d’estimer la variabilité latérale des matériaux. Dans cette optique, cette thèse développe une approche novatrice de combinaison de méthodes géophysiques aidant à

APA, Harvard, Vancouver, ISO, and other styles

42

Priscu, Doina Maria. "Double-porosity modelling of groundwater flow through fractured rock masses." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ37280.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

43

Kirchner, Andreas. "Efficient repeat-modelling of time-lapse seismograms for reservoir monitoring /." [Karlsruhe] : Die Universität, 2001. http://www.ubka.uni-karlsruhe.de/vvv/2001/physik/2/2.pdf.

Full text

Abstract:

Thesis (Doctoral)--Universität Karlsruhe, 2000.<br>Abstract in German. Hochschulschrift = Thèse/Mémoire. Also available via the World Wide Web. http://www.ubka.uni-karlsruhe.de/cgi-bin/psview?document=2001/physik/2

APA, Harvard, Vancouver, ISO, and other styles

44

Fischer, Brian C. "Toward Understanding Resonant Volcanic Seismic Signals| Modelling Bubbly Flow in Magma." Thesis, University of Louisiana at Lafayette, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10682056.

Full text

Abstract:

<p> An important pursuit in volcanology is more accurate predictions of activity. One promising avenue for that pursuit is resonant seismic signals, and the data inherently contained in their resonance. As there is a strong correlation between such signals and the presence of gas, modelling the behavior of gas bubbles within a magmatic system is a critical step in this journey, as well as toward the overall understanding of the volcanic system. </p><p> I modelled clusters of bubbles using Boundary Element Method combined with Fast Multiple Method. The bubbles are three-dimensional polygonal

APA, Harvard, Vancouver, ISO, and other styles

45

Arendt, Anthony Alan. "Approaches to modelling the mass balance of High Arctic glaciers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq22565.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Cassidy, Nigel John. "The application of mathematical modelling in the interpretation of near-surface archaeological ground-penetrating radar." Thesis, Keele University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.344057.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Ng, F. S. L. "Mathematical modelling of subglacial drainage and erosion." Thesis, University of Oxford, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244772.

Full text

Abstract:

The classical theory of channelized subglacial drainage,due orginally to Röthlisberger (1972) and Nye (1976), considers water flow in an ice channel overlying a rigid, impermeable bed. At steady flow, creep closure of the channel walls is counteracted by melt-back due to heat dissipation, and this leads to an equilibrium relation between channel water pressure and discharge. More generally, such a balance exhibits an instability that can be used to describe the mechanics of catastrophic flood events known as `jökulhlaups'. In this thesis, we substantiate these developments by exploring a detai

APA, Harvard, Vancouver, ISO, and other styles

48

Fay, Gemma Louise. "Mathematical modelling of turbidity currents." Thesis, University of Oxford, 2012. http://ora.ox.ac.uk/objects/uuid:62bb9382-1c50-47f3-8f59-66924cc31760.

Full text

Abstract:

Turbidity currents are one of the primary means of transport of sediment in the ocean. They are fast-moving, destructive fluid flows which are able to entrain sediment from the seabed and accelerate downslope in a process known as `ignition'. In this thesis, we investigate one particular model for turbidity currents; the `Parker model' of Parker, Pantin and Fukushima (1986), which models the current as a continuous sediment stream and consists of four equations for the depth, velocity, sediment concentration and turbulent kinetic energy of the flow. We propose two reduced forms of the model; a

APA, Harvard, Vancouver, ISO, and other styles

49

Castillo, Reyes Octavio. "Edge-elements formulation of 3D CSEM in geophysics : a parallel approach." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/461190.

Full text

Abstract:

Electromagnetic methods (EM) are an invaluable research tool in geophysics whose relevance has increased rapidly in recent years due to its wide industrial adoption. In particular, the forward modelling of three-dimensional marine controlled-source electromagnetics (3D CSEM FM) has become an important technique for reducing ambiguities in the interpretation of geophysical datasets through mapping conductivity variations in the subsurface. As a consequence, the 3D CSEM FM has application in many areas such as hydrocarbon/mineral exploration, reservoir monitoring, CO2 storage characterization, g

APA, Harvard, Vancouver, ISO, and other styles

50

Bourhane, Anli. "Méthodes d'investigation de l'intrusion marine dans les aquifères volcaniques (La Réunion et La Grande Comore)." Thesis, La Réunion, 2014. http://www.theses.fr/2014LARE0028/document.

Full text

Abstract:

En contexte insulaire volcanique, les aquifères du domaine côtier présentent de très fortes hétérogénéités liées à leur structure, à la disparité de leurs recharges et à l'influence des conditions en aval. Les travaux envisagés ici consistent à élaborer une méthodologie adaptée à différentes configurations hydrogéologiques dans l'optique de mieux imager et comprendre l'évolution du biseau salé. L'acquisition des données est effectuée sur différents sites présentant des configurations hydrogéologiques variées sur le plan de la recharge, de la structure de l'aquifère et de la géomorphologie de l

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!