montaj Extension MAGMAP Filtering

MAGMAP Filtering utilizes a 2D-FFT filter library to allow the application of common Fourier domain filters to gridded data in Oasis montaj. Rapidly process and enhance gridded datasets by applying a wide range of geophysical and mathematical filters.

The montaj MAGMAP Filtering extension provides a 2D-FFT filter library to allow the application of common Fourier domain filters to gridded data in Oasis montaj.

MAGMAP rapidly processes and enhances gridded datasets by applying a wide range of robust geophysical and mathematical filters. The extension lets you define your own filters, modify the filter specific parameters and apply any number of filters together in a single operation.

It includes an Interactive Spectrum Filter that enables you to quickly preview filtered grids. The MAGMAP Interactive Spectrum Filter solution is a dynamic visual tool that provides an interactive slider allowing you to adjust filter parameters and preview the results instantly. With this tool,  you can quickly preview how each filter enhances specific features you are considering before applying the filter to your entire grid.

Use montaj MAGMAP to:

  • Apply two dimensional Fast Fourier Domain filters (FFT Filters) to gridded data.
  • Potential Field Filters.
  • Reduction of magnetic data to the magnetic pole or equator.
  • First/second/nth vertical derivatives, including fractional derivatives.
  • Upward/downward continuations to any horizontal surface.
  • Apparent magnetic susceptibility maps from magnetic field.
  • Apparent density maps from residual gravity field.
  • Optimum Weiner depth filter.
  • Conversion between different directional components of the field.
  • Apply General Purpose Filters.
  • Six different regional/residual separation filters.
  • De-corrugation and directional filters.
  • First/second/nth horizontal derivatives.

Product Information

Success Stories

Lake-based magnetic mapping of contaminated sediment distribution, Hamilton Harbour, Lake Ontario, Canada [PDF]

McMaster University, School of Geography and Geology; Marine Magnetics Corporation

Earth Science Research at any Scale [PDF]

University of Western Michigan

Quality Control of Gridded Aeromagnetic Data [PDF]

Rio Tinto Exploration

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