English

Alternative forms

• sea-floor spreading

Noun

seafloor spreading ‎(uncountable)

1. (geology) The outward movement of the seafloor from central underwater ridges as a result of plate tectonics; the major cause of continental drift.
   • 2004, Richard Fortey, The Earth, Folio Society 2011, p. 143:

     However, the recognition of sea-floor spreading made sense of continental splitting without having to invoke earth expansion.

Translations

External links

• seafloor spreading on Wikipedia.Wikipedia