Abstract
Modern interpretation in geophysics requires an interdisciplinary knowledge, integration and consideration of ‘state of the art’ information from comprehensive data bases. Towards this end a combination of different geophysical surveys employing seismics, gravity, magnetics, and geoelectrics, together with geological, mineralogical, petrological studies, and results from remote sensing provides new insights into the structures and tectonic evolution of natural deposits and the crustal underground. No doubt, the interdisciplinary approach is essential for numerical modelling of these structures and the processes acting on it. For example the interpretation of potential fields by 3D modelling requires data from other independent sources, due to the ambiguity of these methods. In most of geophysical data interpretation, various geophysical methods are used, yielding an increasing number of models - some of them in 3D, most of them still in 2D, and some even in 1D. These modelling procedures have in common that they are restricted by a single physical parameter interpretation due to limited hard- and software facilities. Examples come from 2D-raytracing models in seismics, either 2D or 3D density modelling, 4D-(timedependend) stress modelling, and 1D/2D magnetotelluric resistivity modelling. A modeling system (IGMAS) is presented which combines information from various geoscientific methods by incorporating GIS-functions.
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