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Journal of the Geological Society; 1990; v. 147; issue.5; p. 851-857;
DOI: 10.1144/gsjgs.147.5.0851
© 1990 Geological Society of London

Article

Fracture zones across the Cape Verde Rise, NE Atlantic

C. A. WILLIAMS1, I. A. HILL2, R. YOUNG2,3 & R. S. WHITE1

1 Bullard Laboratories, University of Cambridge, Madingley Rise, Cambridge CB3 0EZ
2 Department of Geology, University of Leicester, Leicester LE1 7RH

More accurate locations have been made for 13 fracture zones across the Cape Verde Rise and four previously unknown fracture zones mapped. Evidence for their existence is from analysis of the M series of magnetic anomalies together with evidence from seismic reflection profiles where these data exist. The Cape Verde Islands themselves lie among a series of five fracture zones. The continuity of magnetic lineations and fracture zones across the region of the Cape Verde Islands indicates not only that the islands lie on oceanic crust but also that the original Mesozoic seafloor features and magnetization persist and were not obliterated by the Neogene reheating, uplift and volcanism.




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