Data Density and Resolution Power in 3D DC Resistivity Surveys
M. Gharibi and R. Sharpe
Event name: 2nd Conference on Geophysics for Mineral Exploration and Mining
Session: 3D Modelling and Inversion for Mining and Mineral Exploration Methods II
Publication date: 09 September 2018
Info: Extended abstract, PDF ( 1.13Mb )
Price: € 20
Resolution power of a field 3D DC dataset is examined by gradually reducing the data density by removing selected transmitters from the dataset. A mineralized target zone with known geometry and resistivity is used to compare the inversion results for each subset. The results indicate that a high density measurements are essential in retrieving accurate geometry of the target. True 3D grid distribution provides an omni-directional dataset in which the subsurface is sampled by measurements having many different orientations.