Metodologias de interpolação espacial aplicada a dados de espessura crustal na Bacia do Paraná

The use of methods of spatial interpolation of data is becoming increasingly common in geophysical analysis, because of that, currently, several software already contain a lot of these methods, allowing more detailed studies. In the present work to evaluate three methods of interpolation data for crustal thickness of the Paraná Basin, with the intention of making a map of the Moho for the region. The methods are IDW, Spline and Kriging. We compiled 39 data that were a database and analyzed using the software ArcGIS 9.3. The results showed a thicker crust in the central part with thinning to the edge. Traditional methods, IDW and Spline in its results generate anomalies not compatible with the 2.0 model crust. The analysis results of geostatistical Kriging are more refined and consistent, showing no abnormalities point, besides showing more consistent compared with the model, except the northwest, where there is a mismatch between the models due to data exclusivity of gravity, which are less precise than the data of receiver function and seismic.Pages: 3435-344