Geomagnetic Variations in the Eastern United States: Evidence for a Highly Conducting Lower Crust?
- 16 May 1975
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 188 (4189), 726-728
- https://doi.org/10.1126/science.188.4189.726
Abstract
Temporal geomagnetic variations, recorded at ten stations across the eastcentral United States, are interpreted in terms of the electrical conductivity structure of the earth beneath this region. The results are surprising and suggest that the lower crust is highly conducting, having distinct lateral variations in conductivity beneath the Appalachian Mountains.Keywords
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