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ORESCAN^®  - Introduction

ORESCAN^® is an innovative patent-protected airborne and ground geophysical seismo-electromagnetic technology developed and exclusively provided by GET.
It is based on the well established electromagnetic (EM), induced polarization and passive seismic principles.

The method makes use of anomalous spectral EM field properties related to subsurface accumulations of ore minerals which are therefore labeled by an unique "EM-fingerprint".

Thus, the measurement of low-frequency (LF) spectra enables the direct detection and delineation of ore deposits as well as anomaly indication within the hereby identified ore accumulation areas. These unique abilities are not available by other conventional geophysical methods.

In detail the following informations are provided:

• Differentiation between presence or absence of

   metallic ore deposits

• Determination of the Ore Concentration Potential

    (OCP) as a relative quantity

• Lateral distribution of OCP-values, e.g. represented

    in contour plots
 

• Indication of target areas and anomaly-zones of
    increased OCP-values ("concentration hot spots")
 

• Option of detailed survey within target areas
    for depth estimation
 

ORESCAN opens a wide range of highly beneficial usage for the mining industry, from frontier exploration to mine extensions, from prospect derisking to optimization of drilling placement.

Extraction and analysis of the exceptional ore-associated seismo-EM signals as well as the development of the required geophysical survey instrumentation and processing steps were realized in the frame of R&D projects funded by the German Ministries BMU (Environment) and BMBF (Education & Research).

Fig.1.: ORESCAN surveys by Helicopter

Fig. 2: Results of helicopter ORESCAN survey