Evidence for spreading-rate dependence in the displacement-length ratios of abyssal hill faults at mid-ocean ridges

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Date: May 2000
From: Geology(Vol. 28, Issue 5)
Publisher: Geological Society of America, Inc.
Document Type: Article
Length: 94 words

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Abstract :

New data from the eastern flank of the Mid-Atlantic Ridge (approximately 25-27 degrees N) show that slow-spreading abyssal hill faults maintain maximum displacement-length ratios that are systematically greater than those reported on the fast-spreading East Pacific Rise. Lower displacement-length ratios in the fast-spreading environment may reflect the importance of fault linkage (rather than lateral propagation) in determining the lengths of abyssal hill faults and the limited ability of fault systems that evolve within an extremely thin lithosphere to acquire additional displacement during or following linkage. Keywords: mid-ocean ridges, faults, faulting, fault scarps, abyssal hills.

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Gale Document Number: GALE|A68027202