Visualizing a Spherical Geological Discrete Element Model of Fault Evolution

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dc.contributor.authorLongshaw, Stephen M.en_US
dc.contributor.authorTurner, Martin J.en_US
dc.contributor.authorFinch, Emmaen_US
dc.contributor.editorHamish Carr and Silvester Czanneren_US
dc.date.accessioned2013-11-08T10:32:01Z
dc.date.available2013-11-08T10:32:01Z
dc.date.issued2012en_US
dc.description.abstractDiscrete Element Modelling (DEM) is a numerical technique that uses a system of interacting discrete bodies to simulate the movement of material being exposed to external forces. This technique is often used to simulate granular systems; however by adding further elements that inter-connect the bodies, it can be used to simulate the deformation of a large volume of material. This method has precedent for use in the Earth Sciences and recently, with the increase of available computing power, it has been put to good use simulating the evolution of extensional faults in large scale crustal experiments that involve over half a million individual spherical bodies. An interactive environment that provides high quality rendering is presented, showing that interactivity is key in allowing the intelligent application of visualization methods such as colour-mapping and visibility thresholds in order to extract fault information from a geological DEM. It is also shown that glyph representation alone is not sufficient to provide full insight into the complex three dimensional geometries of the faults found within the model. To overcome this, a novel use of the MetaBall method is described, which results in implicit surface representations of sphere sub-sets. The surfaces produced are shown to provide greater insight into the faults found within the data but also raise questions as to their meaning.en_US
dc.description.seriesinformationTheory and Practice of Computer Graphicsen_US
dc.identifier.isbn978-3-905673-93-7en_US
dc.identifier.urihttps://doi.org/10.2312/LocalChapterEvents/TPCG/TPCG12/077-084en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectComputer Graphics [I.3.4]en_US
dc.subjectApplication packagesen_US
dc.subjectComputer Graphics [I.3.7]en_US
dc.subjectVisible line/surface algorithmsen_US
dc.subjectComputer Graphics [I.3.5]en_US
dc.subjectCurveen_US
dc.subjectsurfaceen_US
dc.subjectsoliden_US
dc.subjectand object representationsen_US
dc.subjectSimulation and Modeling [I.6.6]en_US
dc.subjectSimulation Output Analysisen_US
dc.titleVisualizing a Spherical Geological Discrete Element Model of Fault Evolutionen_US
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