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2.5 Airborne Electromagnetic Inversion Service

Steep and deep targets

MOKSHA-EM provides unparalleled imaging capabilities allowing detection of challenging features and formations.

Performance and Resolution

MOKSHA-EM delivers improved resolving power vs CDI and 1D inversions, while being faster than 3D inversion.

cluster-positive-negative-group-collection IP robust

MOKSHA-EM differentiates signal and IP effects using our Joint IP Inversion algorithm, ensuring accuracy to real world phenomena.

Intrepid Geophysics provides a 2.5D Inversion service for airborne electromagnetic survey data using our proprietary MOKSHA-EM inversion software. MOKSHA-EM’s core algorithm assumes 2D geology and a 3D source, combining the resolution of a 3D inversion with the speed of a 1D inversion. This enables entire surveys to be inverted rather than a select few flight lines, enhancing coverage and ensuring no flight data is wasted.

 

A joint IP inversion option is now available, enabling imaging of geological features below previously difficult to process areas such as those covered with induced polarization effects.

Any time or frequency domain system can be supported provided we have documented system configuration. Systems already supported include:

SkyTEM
VTEM
GidHEM/RESOLVE
SPECTREM
HeliGEOTEM
AEROTEM
TEMPEST
GEOTEM
NRG XCite
Contact us for a quote and to discuss how our 2.5D Inversion service can enhance interpretation of your AEM data.

Inversion Applications

Mining Development
Groundwater
Delivery-shipping-worldwide-transport Mining Exploration

Case Studies

Bryah Basin
Bryah Basin
Jovan Silic, Rod Paterson, Des FitzGerald & Tim Archer

This case study of a SPECTREM survey in the Bryah Basin (WA) demonstrates the ability of MOKSHA-EM to indicate geological trends, at depth, for conductors with complex geometries.

Abra East Project Area
Abra East Project Area
Rod Paterson

Inversion of Excite survey data located in the Abra East project area (WA), demonstrating MOKSHA-EM's joint inversion capabilities.

Publications

Comparing 1D and 2.5D AEM inversions in 3D geological mapping Comparing 1D and 2.5D AEM inversions in 3D geological mapping

The advantages of 2.5D airborne electromagnetic inversion in 3D geological mapping applications compared to CDI transforms or simple 1D inversions.

2.5D inversion of airborne electromagnetic data 2.5D inversion of airborne electromagnetic data

2.5D electromagnetic (EM) modelling computes the response of a 3D source from an arbitrary 2D geoelectrical model.

Improved Structural Mapping and Conductive Targeting Delivered by a new 2.5D AEM Inversion Solver Improved Structural Mapping and Conductive Targeting Delivered by a new 2.5D AEM Inversion Solver

Demonstration of the improvements made in the 2.5D AEM solver, including MPI parallelisation and optimisation of the sensitivity matrix.