Evolution of VTEM – technical solutions for effective exploration

Alexander Prikhodko; Edward Morrison; Andrei Bagrianski; Petr Kuzmin; Pavel Tishin; Jean Legault

doi:10.1081/22020586.2010.12041916

ISSN: 2202-0586
E-ISSN:

oa Evolution of VTEM – technical solutions for effective exploration
Authors Alexander Prikhodko^a, Edward Morrison^b, Andrei Bagrianski^c, Petr Kuzmin^d, Pavel Tishin^e and Jean Legault^f
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^a Geotech Ltd., Aurora, ON, , CAN, [email protected] ^b Geotech Ltd., Aurora, ON, , CAN, [email protected] ^c Geotech Ltd, Aurora, ON, , CAN, [email protected] ^d Geo Equipment Manufacturing Ltd., , Aurora, ON, , CAN, [email protected] ^e Geo Equipment Manufacturing Ltd, Aurora, ON, , CAN, [email protected] ^f Geotech Ltd., Aurora, ON, , CAN, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2010, Issue ASEG2010 - 21st Geophysical Conference, Dec 2010, p. 1 - 4
DOI: https://doi.org/10.1081/22020586.2010.12041916
- Published online: 01 Dec 2010

Abstract

Summary

The helicopter borne time-domain VTEM system has been in constant development since 2002 through complex and multicomponent technical improvements in an effort to satisfy exploration and mining industry requirements.

Progress in the geoelectrical informational level of data obtained with different VTEM systems is illustrated with the results of test surveys over the Caber VMS deposit. Forward plate modeling with different systems for the Caber deposit geometry target with changing conductance, as well as resistivity-depth transforms of the real data, both serve to illustrate significant broadening of the conductance aperture and increasing depth of investigation over time. Most of all the increasing sensitivity of the VTEM system is highlighted.

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References

Gingerich, J., and Allard, M., 2001, VHMS Exploration Matagami District Geophysics: Presented at PDAC International Convention and Tradeshow, Toronto, ON, Canada.
Kuzmin, P., and Morrison, E., 2009, Large airborne timedomain electromagnetic transmitter coil system and apparatus: Patent Application Publication No.: US 2009/0212778 A1, August 27, 2009.
Kuzmin, P., and Morrison, E., 2010, Bucking coil and B-field measurement system and apparatus for time domain electromagnetic measurements: US Patent Application 20100052685, Published March 4, 2010.
Meju, M.A., 1998, A simple method of transient electromagnetic data analysis: Geophysics, 63, 405-410.
Witherly, K., Irvine, R., and Morrison, E.B., 2004, The Geotech VTEM time domain helicopter EM system: SEG Expanded Abstracts, 23, 1217-1221.

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Article Type: Research Article

Keyword(s): airborne.; electromagnetic; VTEM

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oa Evolution of VTEM – technical solutions for effective exploration

Abstract

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