We discuss the correlation between the depth extent of magnetic sources, the Curie temperature depth and crustal structures on the mid-Norwegian margin. Our results show that classical spectral methods can be used to estimate the depth extent of magnetic sources, even if the bottom is located in the lower crust, and only with limited resolution since large analyzing windows (> 200 km) have to be used to resolve the deep sources. The depth extent of the magnetic sources is controlled by the crustal<br>geometry and not the temperature distribution in the crust. Comparison with thermal modeling allows us to argue that the observed magnetic field on the mid-Norwegian margin does not reflect the Curie temperature depth as previously assumed, but the geometry of the basement and lower crust.


Article metrics loading...

Loading full text...

Full text loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error