Preliminary correlations of MAGSAT anomalies with tectonic features of Africa

Geophysical Research Letters
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Abstract

An overview of the MAGSAT scalar anomaly map for Africa has suggested a correlation of MAGSAT anomalies with major crustal blocks of uplift or depression and different degrees of regional metamorphism. The strongest MAGSAT anomalies in Africa are closely correlated spatially with major tectonic features. Although a magnetic anomaly caused by a rectangular crustal block would be offset from the block's center by the effects of magnetic inclination, an anomaly caused by real crustal blocks of varying uplift, depression, and degree of regional metamorphism would be located nearer to the locus of greatest vertical movement and highest grade of metamorphism. Thus, the Bangui anomaly may be caused by a central old Precambrian shield, flanked to the north and south by two relatively young sedimentary basins.

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Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Preliminary correlations of MAGSAT anomalies with tectonic features of Africa
Series title Geophysical Research Letters
DOI 10.1029/GL009i004p00303
Volume 9
Issue 4
Year Published 1982
Language English
Publisher Wiley
Contributing office(s) Earth Resources Observation and Science (EROS) Center
Description 4 p.
First page 303
Last page 306
Other Geospatial Africa
Online Only (Y/N) N
Additional Online Files (Y/N) N