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Magnetically inferred basement structure in central Saudi Arabia

Tectonophysics

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Abstract

A compilation of magnetic data for a region in central Saudi Arabia where Precambrian basement is partly exposed on the Arabian shield and partly concealed by overlying Phanerozoic strata, shows a central sector of conspicuous N-S-trending anomalies, a heterogeneous western sector of short-wave-length, high-intensity anomalies, and an eastern sector of low- to moderate-intensity broad-wavelength anomalies. Anomalies in the western and central sectors correlate with Neoproterozoic metavolcanic, metasedimentary, and intrusive rocks of the Arabian shield. The flat magnetic signature of the eastern sector may reflect the presence of a crustal block different in character to the terranes of the orogenic belt and, speculatively, may outline a continental block that collided with the Neoproterozoic terranes and thereby caused their deformation and tectonic accretion. -from Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Magnetically inferred basement structure in central Saudi Arabia
Series title:
Tectonophysics
Volume
245
Issue:
1-2
Year Published:
1995
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
37
Last page:
52
Number of Pages:
16