Spectral IP and Resistivity

Spectral Induced Polarization & Resistivity surveys (IP & Res) are excellent methods for detecting disseminated sulphide mineralization that could be associated with gold. The surveys are carried out using surface and borehole modes.

Large Loop TDEM

ClearView Geophysics Inc. owns and operates transient PROTEM receivers and TEM57/67 transmitters built by Geonics. This system has proven itself useful for detecting both good and bad conductor sulphide mineralization located both shallow and 100’s of metres deep. It is also useful for detecting sources of water.

Snowmobile-Mode Cesium Magnetics

Cesium magnetometer surveys are carried out using a custom-built sleigh pulled behind a standard snowmobile. This system has proven itself on numerous large-scale mineral exploration projects during the past 15+ years.

Seismic Refraction

Seismic Refraction surveys are typically carried out for depth to bedrock investigations. The "shot" can be either an explosive or hammer source. Interpex IXRefraX software is used to process the data.

Electromagnetic (EM) and Magnetic surveys

EM and Magnetic surveys are perhaps the most common geophysical methods used on mineral exploration and environmental investigations. The most commonly used EM instruments for environmental investigations are the Geonics EM31 and EM61.

GPR ( Ground Penetrating Radar )

GPR works best in low conductivity areas. Conductive materials (e.g., clay) attenuate the GPR signal to the point that very little depth penetration is achieved. Penetration is greatest in unsaturated sands and fine gravels.

Gravity

Gravity surveys are completed for a number or applications, including mineral exploration (e.g., diamonds) and geotechnical investigations (e.g., escarpments).

Geophysical Interpretation

ClearView has extensive experience interpreting airborne and ground-based geophysical data. We use UBC's suite of inversion software to produce 2D and 3D interpretations of total field magnetics and IP/Resistivity data. Post-processing software is also used to produce various derivative datasets and maps.

Spectral IP
TDEM
Snowmobile Mode
Seismic Refraction
EM and MAG Surveys
GPR
Gravity
Geophysical Interpretation

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Welcome to ClearView Geophysics

ClearView Geophysics Inc. is a geophysical services company founded in 1996. There is no better way to collect high resolution sub-surface data than with ground-based sensors or 'boots on the ground'. When you describe your project goals to us, we will design a geophysical survey to help you achieve those goals in the most cost-effective manner possible. Getting ground-based geophysical data is arduous - so we are constantly working to find ways to make it easier, whether its with our snowmobile- and ATV-mode surveys or with exo-skeleton systems for more supportive and safer fieldwork.

Joe Mihelcic, P.Eng., M.B.A.
Geophysicist, President & Owner

About the Owner: Mr. Mihelcic is an Applied Science '88 Geological Engineering (Geophysics Option) graduate of Queen's University at Kingston and '95 MBA graduate of Ivey Business School at the University of Western Ontario in London. He enjoys designing and implementing off-the-shelf components and technologies to make ground geophysical surveys easier and therefore more cost effective. He also writes his own software to streamline processing and interpretation.

Rover Geonics EM34-3XL Surveys

Posted on Thursday, 07 May 2020

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The Geonics EM34-3XL ground conductivity meter can be applied in 'rover-mode' for high resolution coverage in a short amount of time. The onboard 'Archer²' datalogger collects real-time GPS at 1-second intervals tagged to Apparent Conductivity readings at 5x per second. The low-stretch tow-strap keeps the distance between the receiver and transmitter sleighs close to the optimum 'nulled' 20-metre separation.

The same specially configured plastic sleighs with no metallic components used for the IMAGEM rover surveys are also used here - allowing for stable coverage.

The mode of operation in the case displayed here is 'vertical dipoles, 20-metre Tx-Rx separation' for effective depth penetration of 30 metres.

A Geonics EM31 survey is typically also completed for shallower depth coverage up to ~6 metres.

A Garmin GPSmap 62stc is used for navigation:

In-house software CVNAV is used to correct the plotting position to half-way between the transmitter and receiver. A 1-second latency correction to account for GPS positioning versus reading is also applied. This software is the same as used for all Cesium Mag and other DGPS Rover Surveys.

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Rover Geonics EM34-3XL Surveys

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