f Automatic 3D Modelling Of Gravity And Aeromagnetic Data In The Witwatersrand Basin - A Poster Presentation

The usefulness of the magnetic and gravity methods in the total exploration<br>effort and the tact that these methods are relatively cheap, warrant<br>extensive research into the development of new interpretation techniques.<br>Since most of the gold bearing reefs in the Witwatersrand basin are covered<br>by younger, transgressive geological units, magnetic and gravity data are<br>particularly useful for determining depths to these reefs and for resolving<br>large structural features. The presented here bas been developed to<br>automatically invert digital magnetic and gravity maps. The resulting depth<br>maps can be used to indirectly estimate depths to target horizons.