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Antonyms for aggrade

build up to a level by depositing sediment

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References in periodicals archive ?
Units A, C, D and sequences B1 have a shallowing-upward trend corresponding to the low frequency aggradational and progradational phases.
Unit A, deposited in a restricted platform, is organized in aggradational muddy thickening- and shallowing-upward sequences.
Natural channel design allows a somewhat mobile channel boundary that is neither excessively erosive nor aggradational.
At the line of flexure of the ramp, in a belt trending NW-SE across western north Alabama, a major aggradational oolitic shoal complex developed in the Bangor (Thomas, 1972).
For the most part, Bangor deposition on the Warrior platform appears to have been progradational or aggradational (Pashin, 1993; Mars and Thomas, 1999).
Ice wedges and aggradational ice can account for 30% to 40% of the volume of the top meter of permafrost (Mackay, 1963; Kokelj and Burn, 2005a).
Landwehr and Rhoads (2003) suggest the adjustment of channel slope post channelization takes place, not by channel incision and bed erosion, but by the development of aggradational fluvial features.
The channel body at the 580 m level is interpreted as a large distributary channel, based on its incised nature and aggradational style, whereas the Coal Mine Point channel body represents a meandering river that advanced over bayfills, much as the modern Atchafalaya River of Louisiana advanced rapidly once it had filled Atchafalaya Bay (Tye and Coleman 1989).
Channel bodies are narrow and up to 6 m thick with an aggradational style of filling, and in places several bodies lie at the same stratigraphic level in the cliffs (Rygel 2005).
Apart from a few allochthonous tempestite layers at the base, the sea level and the environmental conditions during the aggradational phase of the lowstand systems tract of the depositional sequence Tc 3 probably were quite constant.
Kokelj and Burn (2003) correlated "drunken forests" with the accumulation of aggradational ice in the upper permafrost, and Shur and Ping (1994) demonstrated the influence of such ice on patterned-ground evolution.
However, the strength of the statistical relationship between these parameters was influenced by lower than expected yields in low-lying aggradational zones near the field boundary.