NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Euro-African MAGSAT anomaly-tectonic observationsPreliminary satellite (MAGSAT) scalar magnetic anomaly data are compiled and differentially reduced to radial polarization by equivalent point source inversion for comparison with tectonic data of Africa, Europe and adjacent marine areas. A number of associations are evident to constrain analyses of the tectonic features and history of the region. The Precambrian shields of Africa and Europe exhibit varied magnetic signatures. All shields are not magnetic highs and, in fact, the Baltic shield is a marked minimum. The reduced-to-the-pole magnetic map shows a marked tendency for northeasterly striking anomalies in the eastern Atlantic and adjacent Africa, which is coincident to the track of several hot spots for the past 100 million years. However, there is little consistency in the sign of the magnetic anomalies and the track of the hot spots. Comparison of the radially polarized anomalies of Africa and Europe with other reduced-to-the-pole magnetic satellite anomaly maps of the Western Hemisphere support the reconstruction of the continents prior to the origin of the present-day Atlantic Ocean in the Mesozoic Era.
Document ID
19850023283
Document Type
Other
Authors
Hinze, W. J. (Purdue Univ. West Lafayette, IN, United States)
Olivier, R. (Lausanne Univ. Columbus, United States)
Vonfrese, R. R. B. (Ohio State Univ.)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Publication Information
Publication: Improving the Geol. Interpretation of Magnetic and Gravity Satellite Anomalies
Subject Category
EARTH RESOURCES AND REMOTE SENSING
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

IDRelationTitle19850023272Analytic PrimaryImproving the geological interpretation of magnetic and gravity satellite anomalies