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progradation

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progradation [¦prō·grə′dā·shən]
(geology)
Seaward buildup of a beach, delta, or fan by nearshore deposition of sediments transported by a river, by accumulation of material thrown up by waves, or by material moved by longshore drifting.


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Durant la periode interglaciaire d'Olympia, la plus grande partie du bassin a ete rempli de sediments, lesquels ont par la suite ete excaves durant la glaciation de Fraser, sauf un groupe de bancs isoles; la partie sud du bassin a ete partiellement remplie par progradation du delta de la riviere Fraser a l'Holocene.
It is likely that during Raikkula time the zone of dolomitization gradually migrated southwestwards in accordance with progressive shallowing and progradation of the carbonate shelf, especially in the second half of the time.
Continued progradation of the shoreline added an additional 49 beach ridges over the next 3,500 years.
 
 
 
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