Other
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29o..56p&link_type=abstract
Geophysical Research Letters, Volume 29, Issue 15, pp. 56-1, CiteID 8000, DOI 10.1029/2001GL013645
Other
7
Geomagnetism And Paleomagnetism: Spatial Variations (All Harmonics And Anomalies), Geodesy And Gravity: Local Gravity Anomalies And Crustal Structure, Seismology: Lithosphere And Upper Mantle, Information Related To Geographic Region: North America
Scientific paper
A global model is developed for both induced and remanent magnetizations in the terrestrial lithosphere. The model is compared with, and well-described by, Ørsted satellite observations. Interpretation of the observations over North America suggests that the large total field anomalies, associated with spherical harmonic degrees 15-26 and centered over Kentucky and the south-central United States, are the manifestations of the magnetic edges of the southern boundaries of cratonic North America. The techniques and models developed here may be of use in defining other cratonic boundaries.
Hulot Gauthier
Langlais Benoit
Mandea Mioara
Olsen Nils
Purucker Michael
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