Photographing layer thicknesses and discontinuities in a marble quarry with 3D GPR visualisation
作者： Selma Kadioglu
DOI: 10.1016/J.JAPPGEO.2008.01.001
关键词: Homogeneity (statistics) 、 Mineralogy 、 Interactive 3d 、 Geology 、 Opacity 、 Ground-penetrating radar 、 Layer thickness 、 Excavation 、 Classification of discontinuities 、 Visualization
摘要: An important problem of marble-quarry management is assessing the quality and homogeneity quarry blocks before excavation. In this study, we decided to image limestone, which studied in a marble quarry, terms layer thickness, discontinuities cavities using ground-penetrating-radar (GPR) method. The method was successfully applied detect map fractures with according depth Ankara City Polatli Town (Turkey) region, represents upper Miocene–Pliocene lacustrine carbonate rocks. This paper based on interactive transparent 3D visualisation 2D GPR profiles determine changes thickness discontinuities. addition, indicates importance appropriate opacity-function construction obtain visualisation. Firstly acquired processed parallel profile data, then assigned two different amplitude–colour ranges limited number colours its separately. We obtained volume data displayed amplitude range by arranging an opacity function. Therefore, for discontinuities, formulated display horizontal, vertical inclined their directions x–y plane versus depth. results were compared petrographical investigation basis textural mineralogical compositions. vesicular textures within platform supported results. © 2008 Elsevier B.V. All rights reserved.
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