Airborne Inductive Induced Polarization Chargeability Mapping of VTEM Data

Karl Kwan; Alexander Prikhodko; Jean M. Legault; Geoffrey Plastow; Joe Xie; Keith Fisk

doi:10.1071/ASEG2015ab104

24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery

ISSN: 2202-0586
E-ISSN:

oa Airborne Inductive Induced Polarization Chargeability Mapping of VTEM Data
Authors Karl Kwan^a, Alexander Prikhodko^b, Jean M. Legault^c, Geoffrey Plastow^d, Joe Xie^e and Keith Fisk^f
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^a Geotech Ltd, 245 Industrial Parkway N. Aurora, , Ontario, , Canada, L4G 4C4, [email protected] ^b Geotech Ltd, 245 Industrial Parkway N. Aurora, , Ontario, , Canada, L4G 4C4, [email protected] ^c Geotech Ltd, 245 Industrial Parkway N. Aurora, , Ontario, , Canada, L4G 4C4, [email protected] ^d Geotech Ltd, 245 Industrial Parkway N. Aurora, , Ontario, , Canada, L4G 4C4, geoffrey@[email protected] ^e Yunnan Tin Australia Pty Ltd, 15 Gubbuteh Road Little Bay, , NSW, Australia, 2036, [email protected] ^f Geotech Airborne Limited, 17 Oxleigh Drive Malaga, WA, Australia, 6090, [email protected]
Publisher: Australian Society of Exploration Geophysicists
Source: ASEG Extended Abstracts, Volume 2015, Issue 24th International Geophysical Conference and Exhibition – Geophysics and Geology Together for Discovery, Dec 2015, p. 1 - 4
DOI: https://doi.org/10.1071/ASEG2015ab104
- Published online: 01 Dec 2015

Abstract

Airborne inductive induced polarization (AIIP) effect has been widely recognized in airborne time domain EM system data. AIIP chargeability mapping opens new and exciting areas in mineral exploration for airborne time domain EM systems in the search for sulphides and clay minerals. An AIIP chargeability mapping tool based on CSIRO/AMIRA Airbeo is created for VTEM data, with examples from Mt Milligan, British Columbia, Canada and Tullah, Tasmania. Using the Cole-Cole frequency dependent resistivity, the tool examines the VTEM decay data spectrally and selects the decay associated with the lowest RMS error from a set of decays generated by varying chargeability m and time constant T within specific ranges, giving a constant frequency factor c, while the background resistivity is inverted. The parameter mo used to generate the decay is the AIIP apparent chargeability.

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References

Boyko, W., Paterson, N.R. and Kwan, K., 2001, AeroTEM characteristic and field results: The Leading Edge, 20, 1130-1138.
Cole, K. and Cole R., 1941, Dispersion and absorption in dielectrics, Part I. Alternating current characteristics: Journal of Chemical Physics, 9, 341-351.
Corbett, K.D., 2002: Updating the geology of the Mount Read Volcanics belt Western Tasmanian Regional Minerals Program Mount Read Volcanics Compilation: Tasmanian Geological Survey Record 2002/19, Mineral Resources Tasmania, Department of Infrastructure, Energy and Resources, Tasmania.
Kang, S., Oldenburg D.W., Marchant, D., Yang, D. and Haber, E., 2014, On recovering IP information from airborne EM data: presented at Geotech airborne geophysics workshop, AME BC Mineral Exploration Roundup 2014 Conference.
Kratzer, Terence and Macnae, James C., 2012, Induced polarization in airborne EM: Geophysics, 77, E317-327.
Meju, Maxwell A., 1998, A simple method of transient electromagnetic data analysis: Geophysics, 63, 405-410.
Oldenburg, Douglas W., Li, Yaoguo and Ellis, Robert G., 1997, Inversion of geophysical data over a copper gold porphyry deposit: a case history for Mt. Milligan: Geophysics, 62, 1419-1431.
Pelton, W.H., Ward, S.H., Hallof, P.G., Sill, W.R., and Nelson, P.H., 1978, Mineral discrimination and removal of inductive coupling with multi-frequency IP: Geophysics, 43, 588-609.
Raiche, A., 1999, A flow-through Hankel transform technique for rapid, accurate Green’s function formulation: Radio Science, 34, 549-555.
Raiche, A.P., Jupp, D.L.B., Rutter H. and Vozoff, K., 1985, The jo int use of coincident loop transient electromagnetic and Schlumberger sounding to resolve layered structures : Geophysics, 50, 1618-1627.
Smith, R. S. and J. Klein, 1996, A special circumstance of airborne induced polarization measurements: Geophysics, 61, 66-73.
Smith, R. S. and West, G.F., 1989, Field examples of negative coincident-loop transient electromagnetic responses modeled with polarizable half-planes: Geophysics, 54, 1491-1498.
Seymour, D.B., Green, G.R. and Calver, C.R., 2007: The Geology and Mineral Deposits of Tasmania: A summary: Geological Survey Bulletin, 72.
Witherly, K., Irvine, R., and Morrison, E.B., 2004, The Geotech VTEM time domain electromagnetic system: SEG, Expanded Abstracts, 1217-1221.
Welhener, H., Labrenz, D., and Huang, J., 2007, Mt. Milligan Project Resource Report, Omenica Mining District: technical report (NI43-101) prepared for Terrane Metals Corp., by Independent Mining Consultants, Inc., 113 p.

/content/journals/10.1071/ASEG2015ab104

Article Type: Research Article

Keyword(s): Airborne inductive induced polarization (AIIP); chargeability mapping; negative transients; sulphides and clay minerals

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