释义 |
foredeep
foredeepA long basin filling with sediment eroded from an active mountain system nearby.Foredeep
foredeep[′fȯr‚dēp] (geology) A long, narrow depression that borders an orogenic belt, such as an island arc, on the convex side. exogeosyncline Foredeep (1) Another term for a marginal deep. (2) The late developmental stage of a marginal deep, characterized by the accumulation of an upper molasse, formed by coarse continental sediment. |