Citation

Geoscience Australia provides most of its products for free under a Creative Commons Attribution 3.0 Australia Licence. We only require that you reference the use of our data or information using the following citation:
Wellman, P., Murray, A.S. & McMullan, M.W., 1984. Australian long-wavelength magnetic anomalies. BMR Journal of Australian Geology and Geophysics  9:4:297-302. Bureau of Mineral Resources, Geology and Geophysics, Canberra.

Abstract

A long-wavelength magnetic anomaly map is derived from near-surface observations. The data can be continued upward for comparison with maps derived from satellite data. Compared with a map from 400-km altitude observations of the MAGSAT satellite, the highs and lows are in a similar geographic position, but the MAGSAT map is smoothed, possibly by uncorrected variations in satellite altitude. The long-wavelength magnetic anomalies have no significant correlation with heat flow or seismically measured crustal thickness, and have an amplitude higher than that expected for a non-magnetic sediment. In central and western Australia, magnetic highs are spatially associated with crustal block boundaries defined by elongate, high-amplitude, associated gravity highs and lows. Consequently, the long-wavelength magnetic anomalies are thought to be caused by rocks of high magnetisation in the upper or lower crust.
Google map showing geographic bounding box with values North bound East bound West bound South bound
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Product Type/Sub Type

nonGeographicDataset - GA Publication - Journal

Constraints

license
Creative Commons Attribution 3.0 Australia Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

1984

Product Type

nonGeographicDataset

Topic Category

geoscientificInformation

Keywords

GA Publication
Journal
Earth Sciences

Resource Language

English

Resource Character Set

utf8

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unclassified

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Unknown

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onLine

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pdf

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distributor
Organisation Name
Geoscience Australia
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Canberra
Administrative Area
ACT
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Country
Australia
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fae9173a-7085-71e4-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

Metadata Date Stamp

2014-06-23

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

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pointOfContact
Organisation Name
Geoscience Australia
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address
Downloads
For information on acquiring this product,
please contact Geoscience Australia Client Services via:

fax:
+61 2 6249 9960; or
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1800 800 173 (within Australia);
 
+61 2 6249 9966 (outside Australia).