The Application of SIROTEM in Weathered Terrain

G. Buselli

doi:10.1071/EG980099

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

The Application of SIROTEM in Weathered Terrain
Authors G. Buselli^a
View Affiliations Hide Affiliations

^a CSIRO Division of Mineral Physics, P.O. Box 136, North Ryde, , NSW, , 2113
Publisher: Australian Society of Exploration Geophysicists
Source: Exploration Geophysics, Volume 11, Issue 3, Sep 1980, p. 99 - 109
DOI: https://doi.org/10.1071/EG980099
- Published online: 01 Sep 1980

Abstract

SIROTEM has been widely used over many different terrains in the past two years. Considerable success has been achieved in detecting mineral deposits (e.g. Elura and Teutonic Bore) occurring under conductive overburden up to 100 m thick. The best response of these deposits is in the time window of approximately 2.6 to 50 ms. The ore-body response is obscured at delay times earlier than 2.6 ms. The response for 100 m loops at delay times greater than 50 ms is less than the noise level of 0.2 μ V/A.

To provide an interpretation base for SIROTEM data, a system has been set up to model responses from thin dipping dykes, in air and in conductive media. A SIROTEM unit was used to collect the modelling data, with both separated and coincident loops configurations. Features of these modelling results relevant to the interpretation of responses obtained from field measurements are discussed in detail.

The apparent resistivity output of SIROTEM provides a means for producing in-field pseudo-sections of apparent resistivity. The capability of SIROTEM to produce apparent resistivity values can be extended to large scale surveys for stratigraphic mapping. These results are interpreted with the aid of modelling results for layered media.

Article metrics loading...

/content/journals/10.1071/EG980099

1980-09-01

2026-01-22

From This Site

/content/journals/10.1071/EG980099

dcterms_title,dcterms_subject,pub_keyword

-contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution

10

5

Full text loading...

References

BUSELLI, G., and O'NEILL, B., 1977. SIROTEM. a new portable instrument for multichannel transient electromagnetic measurements. Bull. Aust. Soc. Explor. Geophys., 8(3), 82-87.
DRINKROW, R. L., 1976. The CSIRO electromagnetic scale modelling facility. Bull. Aust. Soc. Explor. Geophys., 7(3), 111-115.
FOKIN, A. F., ed., 1971. The Method of Transient Processes in the Search for Sulphide Ore Deposits. Nedra, Leningrad, p. 29.
HONE, I. G., 1976. Transient electromagnetic survey, Elura Prospect, Cobar, New South Wales. Bur. Miner. Resour. Rec, 1976/99.
KAMENETSKII, F. M., ed., 1976. Handbook of Applied Methods of Transient Processes in Ore Geophysics. Nedra, Leningrad, p. 31.
KAUFMAN, A. A., 1974. Basic Theory of Inductive Mining Prospecting. Nauka, Siberian Division, Acad. Sci. U.S.S.R.
LEE, T. and LEWIS, R., 1974. Transient EM response of a large loop on a layered ground. Geophysical Prospecting, 22, 430-444.
OGILVY, R. D., 1976. Geophysical survey, Elura Prospect, NSW, 1974. Bur. Miner. Resour. Rec., 1976/47.
SPIES, B. R., 1974. Transient electromagnetic model studies, 1973. Bur. Miner. Resour. Rec, 1974/152.
SPIES, B. R. and RAICHE, A. P., 1980. Calculation of apparent conductivity for the TEM (coincident loop) method using an HP-67 calculator. Geophysics, 45, 1197-1204.
VELIKIN, A. B. and BULGAKOV, Yu. I., 1967. Transient method of electrical prospecting (one-loop version): Paper presented at UNO International Seminar on Geophysical Methods of Prospecting for Ore Minerals. Moscow, U.S.S.R. Ministry of Geology.

/content/journals/10.1071/EG980099

Article Type: Research Article

Most Cited This Month Most Cited RSS feed

- A comparison of smooth and blocky inversion methods in 2D electrical imaging surveys
  
  Authors M.H. Loke, Ian Acworth and Torleif Dahlin
- Reverse-Time Migration using the Poynting Vector
  
  Authors Kwangjin Yoon and Kurt J. Marfurt
- SkyTEM–a New High-resolution Helicopter Transient Electromagnetic System
  
  Authors K. I. Sorensen and Esben Auken
- An overview of a highly versatile forward and stable inverse algorithm for airborne, ground-based and borehole electromagnetic and electric data
  
  Authors Esben Auken, Anders Vest Christiansen, Casper Kirkegaard, Gianluca Fiandaca, Cyril Schamper, Ahmad Ali Behroozmand, Andrew Binley, Emil Nielsen, Flemming Effersø, Niels Bøie Christensen, Kurt Sørensen, Nikolaj Foged and Giulio Vignoli
- The Fast Marching Method: An Effective Tool for Tomographic Imaging and Tracking Multiple Phases in Complex Layered Media
  
  Authors Nicholas Rawlinson and Malcolm Sambridge
- 3-D Analytic Signal in the Interpretation of Total Magnetic Field Data at Low Magnetic Latitudes
  
  Authors Ian N. MacLeod, Keith Jones and Ting Fan Dai
- CMP cross-correlation analysis of multi-channel surface-wave data
  
  Authors Koichi Hayashi and Haruhiko Suzuki
- A new direct non-invasive groundwater detection technology for Australia
  
  Authors M. Schirov, A. Legchenko and G. Creer
- 3D inversion of airborne electromagnetic data using a moving footprint
  
  Authors Leif H. Cox, Glenn A. Wilson and Michael S. Zhdanov
- Notes On Rock Magnetization Characteristics In Applied Geophysical Studies
  
  Authors D. A. Clark and J. B. Emerson
More Less

The Application of SIROTEM in Weathered Terrain

Abstract

Most Read This Month

Most Cited This Month Most Cited RSS feed