(geology) accretion
(hydrology) A process of shifting equilibrium of stream deposition, with upbuilding approximately at grade.
aggradation
| Sci-Tech Dictionary: aggradation |
(′ag·rə′dā·shən)
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| Geography Dictionary: aggradation |
The deposition of unconsolidated deposits by aeolian, marine, or fluvial processes, when the quantity or calibre of the load is greater than the competence of the transporting medium to carry it, or as a result of mass movement.
Alluvial deposits are major features of aggradation, and detailed analyses of aggradation deposits, such as the East Anglian Fens, using stratigraphical and palynological methods, have enabled geomorphologists to throw light on post-glacial climatic change.
| Architecture: aggradation |
The addition of a material to the earth’s surface to promote the uniformity of a grade or slope.
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 | Sci-Tech Dictionary. McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved. Read more |
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