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seafloor spreading

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seafloor spreading [ˌsiːflɔːˈsprɛdɪŋ] n (Geog) → espansione f del fondo marino


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ne source of information providing insight into the physics of this viscous mass are the four stable forms, or isotopes, of iron that can be found in rocks that have risen to Earth's surface at mid-ocean ridges where seafloor spreading is occurring.
A third paper (Cochran and Karner) discusses the transition from rifting to drifting in the Red Sea, concluding that rift systems that are characterized by large rotated fault blocks rarely lead to seafloor spreading, but may be left stranded alongside adjacent margins or survive as failed rifts.
Nearly all of the major Earth-shaping features and processes--seafloor volcanism, hydrothermal vent systems, earthquakes, seafloor spreading, and subduction zones--converge in a reasonably small geographic area.
 
 
 
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