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English
Adjective
deltal (not comparable)
- Pertaining to or deposited by a (river) delta.
1922, Geological Survey of Canada, Summary Report of the Geological Survey, Department of Mines for the Calendar Year ..., page 55:Lacustrine deposits of clay, and more rarely sand and alluvial sediments of clay, sand, and gravel, complete the recent deposits. A considerable deltal island has formed at the mouth of Horn river where it enters Fawn and Mink […]
1925, Bernice Pauahi Bishop Museum, Bernice P. Bishop Museum Bulletin, page 38:[…] filled with alluvial deposits which finally rose above sea level except at the mouths of the valleys where wave action has been sufficiently strong to carry the sediment seaward and thus prevent the accumulation of deltal deposits.
1969, Wallace R. Hansen, The Geologic Story of the Uinta Mountains, page 104:Inevitably, as deltal and alluvial deposits encroached upon the basins, the lakes pour […]