Magnetometric resistivity and frequency domain magnetic induced polarisation test surveys using gradient and multi source arrays over the Elura orebody

A. W. Howland-Rose

doi:10.1071/EG9804086

ISSN: 0812-3985
E-ISSN: 1834-7533

Magnetometric resistivity and frequency domain magnetic induced polarisation test surveys using gradient and multi source arrays over the Elura orebody
Authors A. W. Howland-Rose^a
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^a ScintrexPty. Ltd. (formerly SeigelAssociates AustralasiaPty. Ltd.),, 6 Tram ore Place, Killarney Heights, , N.S.W., 2087
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 11, Issue 4, Dec 1980, p. 86 - 91
DOI: https://doi.org/10.1071/EG9804086
- Published online: 01 Dec 1980

Abstract

Magnetometric resistivity test surveys using current dipoles of 1 kilometre and 0.6 kilometres demonstrate that the Elura ore body lies within an approximate grid north south trending channel of higher conductivity. Slightly lower relative conduction over the Elura ore body on the 1 kilometre array may be due to a more resistive outer shell of siliceous ore offsetting the greater conductivity of the inner massive pyrite or pyrrhotite to galvanic current flow. A multi-source (Edwards) array showed distinct magnetometric resistivity and interior polarisation axes over the Elura ore body but not to the south thereof. As these are associated with 200 to 300 metres current dipoles they are considered to be due to the sulphides within the upper conductive and polarisable section of the Elura ore body.

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1980-12-01

2026-01-22

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References

ADAMS, Ft. L., and SCHMIDT, B. L., 1980. Geology of the Elura Zn-Pb-Ag deposit. Bull. Aust. Soc. Explor. Geophys., this volume.
EDWARDS, R. N., and HOWELL, E. C, 1976. A field test of the magnetometric resistivity (MMR) method. Geophysics, V.41, 1170-1188.
EDWARDS, R. N., and HOWLAND-ROSE, A. W., 1979. Modern EM and IP exploration techniques. Australian Mineral Foundation, V. Ill, Sections a & b, 607-748.
EDWARDS, R. N., and GOMEZ-TREVINO, E., 1979. MMR2D A programme to compute the magnetometric resistivity (MMR) anomalies of two dimensional structures. Unpublished report, Macquarie University.
HOWLAND-ROSE, A. W., 1980. Early electrical and magnetic induced polarisation surveys over the Elura ore body – results and comments. Bull. Aust. Soc. Explor. Geophys., this volume.
HOWLAND-ROSE, A. W., LINFORD, J. G., PITCHER, D. H., and SEIGEL, H. O., 1980. Some recent magnetic induced polarisation developments. Geophysics, V. 45, Parts I & II, 37-74.
SEIGEL, H. O., 1974. The magnetic induced polarisation method. Geophysics, V. 39, 321-339.
SEIGEL, H. O., and BRCIC, I., 1976. Frequency domain IP measurement using harmonically related components. Scintrex Applications Brief, 76-1.

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Article Type: Research Article

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Magnetometric resistivity and frequency domain magnetic induced polarisation test surveys using gradient and multi source arrays over the Elura orebody

Abstract

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