overbank deposit

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overbank deposit

[¦ō·vər¦baŋk di‚päz·ət]
(geology)
Fine-grained sediment (silt and clay) deposited from suspension on a floodplain by floodwaters from a stream channel.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
A consequence of the increased downcutting of streams was incision, channel enlargement, and decreased overbank flooding events in low-order streams in the Southern Piedmont.
South from Unirii Square the two overbank hillocks, Mithropoly Hill and Negru-Voda Hill, can still be seen today.
The transition from the Ward Point Member to the North Reef Member is marked by a shift to almost exclusively sandstone-rich, well-drained deposits in overbank areas and a change in fluvial style.
In 2010, overbank flooding at the Tutakoke River site persisted for three hours when it reached an elevation of 2.4 m.
Accordingly, although bankfull flows are often recommended in environmental flow assessments for the purpose of channel formation (e.g., [20]), overbank flows are recommended for ecological rather than geomorphological purposes (e.g., [21]).
Three years of overbank flood events caused obvious river width expansion, which the methods in this paper cannot reflect.
Samples from tailings (T1), the overbank tailings pile (T2 station 4), the test pit (station 4), and ash (residues from the walls of the abandoned mining installations, station 1) were collected from the zone of El Triunfo (Fig.
Dubbed environmental flow offsets, projects include using pumps and pipes to release water into wetlands instead of natural overbank floods.
The Floodplain deposits include the fine-grained overbank sediments of the floodplain and cover a wide flat basinal area where several rivers flowed across the alluvial plain and their floodplains merged.
Fortunately, the stream's floodplain was entirely contained within the school's athletic fields, making alterations to the stream course and to the frequency of overbank events possible without negatively impacting infrastructure.
Andrew Miall's chapter on alluvial deposits deconstructs river systems into the essential architectural elements of channels, bedforms, and overbank deposits, such as levees and crevasse splays.
The bank regulatory variables included measure four aspects of bank regulatory practices: restrictions on bank activities and ownerships (overbank, nfob, nbffob), capital regulation (mcar, crindex), supervisory structure (mulsup, singlefsa, indpoli), and market monitoring (fstrans).