The southern edge of cratonic North America: Evidence from new satellite magnetometer observations
Article first published online: 14 MAY 2002
Copyright 2002 by the American Geophysical Union.
Geophysical Research Letters
Volume 29, Issue 15, pages 56-1–56-4, August 2002
How to Cite
The southern edge of cratonic North America: Evidence from new satellite magnetometer observations, Geophys. Res. Lett., 29(9), doi:10.1029/2001GL013645, 2002., , , , and ,
- Issue published online: 14 MAY 2002
- Article first published online: 14 MAY 2002
- Manuscript Accepted: 9 NOV 2001
- Manuscript Revised: 5 OCT 2001
- Manuscript Received: 16 JUN 2001
 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.