Abyssal hills of the eastern central North Atlantic
1974; Elsevier BV; Volume: 16; Issue: 5 Linguagem: Inglês
10.1016/0025-3227(74)90069-3
ISSN1872-6151
AutoresPeter A. Rona, R. N. Harbison, Sam A. Bush,
Tópico(s)Geological formations and processes
ResumoAbyssal hills were delineated in a 185 × 185-km area by an 18.5 × 18.5-km grid of narrow-beam bathymetric and geophysical profiles in oceanic crust of Cretaceous age near 23°N latitude, 31°W longitude. The abyssal hills are similar to features located along flow lines of sea-floor spreading near the crest of the Mid-Atlantic Ridge. This similarity indicates a primary origin for these abyssal hills related to axial processes at a mid-oceanic ridge involving construction (igneous) and tectonics (faulting), and secondary modification by volcanic activity.
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