The Transient Electromagnetic Method in Australia

Transient electromagnetic (TEM) test surveys have been made at various localities in Australia to evaluate the method. The test surveys described in this paper were made in the Rum Jungle, Mary River and Tennant Creek areas, Northern Territory. Good agreement was generally obtained between TEM results and those observed with other electromagnetic methods, and good correlation was obtained with geology. The theoretical advantages inherent in the method make it attractive under Australian conditions of conductive overburden, and field test results demonstrate these advantages. It was found that the TEM equipment could be used in areas where topography or highly conductive surface conditions severely limit the effectiveness of other geophysical methods. The use of large loops with sides 100-150 m enable large areas to be surveyed quickly, while smaller loops proved useful in delineating anomalies accurately. Different loop sizes with loop-overlap were used to assist quantitative interpretation. Transient electromagnetic scale modelling programs have also been made and two examples are given which demonstrate how interpretation can be improved by such programs. A model study of the Woodlawn copper-lead-zinc deposit indicated that the orebody would have been detected at depths of up to 200 m. Modelling an area known as the Gubberah Gossan in the Northern Territory demonstrated that the anomaly pattern could be caused by resistive quartz-sphalerite mineralization in a conductive carbonaceous shale unit.

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Date (Publication)
1976-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/80862

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Bureau of Mineral Resources, Geology and Geophysics

 Canberra
Author

Spies, B.R.

 1
Name

BMR Journal of Australian Geology and Geophysics

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1:1:23-32

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Commonwealth of Australia (Geoscience Australia)
Custodian

Commonwealth of Australia (Geoscience Australia)

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  • Geoscientific information

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E
W


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Unknown

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Product data repository: Various Formats

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Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Keywords

  • GA Publication

  • Journal

Keywords

  • AUS

Australian and New Zealand Standard Research Classification (ANZSRC)

  • Earth Sciences

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

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License
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License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
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https://www.protectivesecurity.gov.au/Pages/default.aspx

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Unclassified
Language
English
Character encoding
UTF8

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Commonwealth of Australia (Geoscience Australia)

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OnLine resource

Journal article (pdf)

Journal article (pdf)

Distribution format

  • pdf

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Non geographic dataset
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GA Publication

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Source data not available.

Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/fae9173a-6f3b-71e4-e044-00144fdd4fa6

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice

Type of resource

Resource scope
Document
Name

AGSO BMR Journal

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/80862

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https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/fae9173a-6f3b-71e4-e044-00144fdd4fa6

Date info (Revision)
2018-04-20T06:08:45
Date info (Creation)
2014-06-03T00:00:00

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

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