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1.7 Magnetic inclination and declination effects for complex structures
 
This sequence shows the variations in anomaly patterns in an area of complex structure, resulting from systematically varying the magnetic inclination and declination.  The original model is based on the geology seen at the North end of the Widgiemoolltha Dome in the Yilgarn Craton of Western Australia, and was developed by Rick Valenta.
 
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Magnetics
Magnetics
Magnetics
Magnetics
Widgiemooltha model at various magnetic inclinations
- greyscale image
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Inclination 90 Declination 0
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Inclination -60 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination -30 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination -15 Declination 0
Widgiemooltha model at various magnetic inclinations
- greyscale image 
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Open history with NoddyOpen FracViewer Movie
Inclination +0 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination +15 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination +30 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination +60 Declination 0
Widgiemooltha model at various magnetic inclinations
- greyscale image 
Open magnetics with Noddy
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Open magnetics with Noddy
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Open history with NoddyOpen FracViewer Movie
Inclination -60 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination -60 Declination 30
Open history with NoddyOpen FracViewer Movie
Inclination -60 Declination 60
Open history with NoddyOpen FracViewer Movie
Inclination -60 Declination 90
Widgiemooltha model at various magnetic declinations
- colour image
Open magnetics with Noddy
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Open magnetics with Noddy
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Open history with NoddyOpen FracViewer Movie
Inclination 90 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination -60 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination -30 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination -15Declination 0
Widgiemooltha model at various magnetic inclinations
- colour image
Open magnetics with Noddy
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Open magnetics with Noddy
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Open magnetics with Noddy
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Open magnetics with Noddy
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Open history with NoddyOpen FracViewer Movie
Inclination +00 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination +15 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination +30 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination +60 Declination 0
Widgiemooltha model at various magnetic declinations
- colour image
Open magnetics with Noddy
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Open magnetics with Noddy
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Open magnetics with Noddy
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Open magnetics with Noddy
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Open history with NoddyOpen FracViewer Movie
Inclination -60 Declination 0
Open history with NoddyOpen FracViewer Movie
Inclination -60 Declination 30
Open history with NoddyOpen FracViewer Movie
Inclination -60 Declination 60
Open history with NoddyOpen FracViewer Movie
Inclination -60 Declination 90
 
 

Key
Survey Parameters
Scales
 
 
image width
28,000 m
 
 
Inclination
varied
 
Intensity
63,000 gamma
 
Flight height
60 m
 
 
max min
max min
 
 

All models created using Noddy
Copyright © 1998 AGCRC & Mark Jessell

WWW conversion by Ian Brayshaw Thursday 30 April 1998