back-arc basin

(redirected from Backarc spreading)

back-arc basin

[′bak‚ärk ‚bās·ən]
(geology)
The region (small ocean basin) between an island arc and the continental mainland formed during oceanic plate subduction, containing sediment eroded from both.
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References in periodicals archive ?
Chapters were taken from the Ridge 2000-InterRidge Theoretical Institute, "Interactions among Physical, Chemical, Biological, and Geological Processes in Backarc Spreading Systems," held on Jeju Island, South Korea, in May of 2004.