overbank deposit


Also found in: Dictionary.

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.
References in periodicals archive ?
Glacial action does not appear to be a necessary condition to produce linear segments, since the P/log D plot for a subsoil overbank deposit from NSW also consisted of two linear segments (Fig.
Plots for overbank deposits appear more often to consist of two superimposed plots, as in Figs 5 and 6.
Areas to be remediated comprise the OU4-Conrad Tailings, a 28-acre tailing location with about 12 acres of contamination around its perimeter and downstream sediment, overbank deposits and floodplain and a county road right-of-way.
Crevasse-splay sandstones make up less than ~10% of the thickness of overbank deposits below 781 m and 30-50% of their thickness above this level.
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.
A 35 m core recovered from the floodplain of Raccoon Creek at Granville contains 22+ m of lacustrine and overbank deposits above wood dated to 15,620 [+ or -] 110 yrs BP (Beta-91907).
The fossiliferous beds, from the Castor Creek Member of the Fleming Formation, are fluvial overbank deposits including fossil soils (Jones et al.
Areas to be remediated include the OU4-Conrad Tailings, a 28-acre tailing location with approximately 12 acres of contamination around its perimeter and downstream sediment, overbank deposits and floodplain and a county road right-of-way.
The lack of thick, homogeneous channel sandstone and conglomerate units and a high proportion of overbank deposits suggest deposition in an anastomosing river system (Miall 1992).
of Index Settings Ranges Calculations 7Aa-Glacial Till Over Bedded Sedimentary Rocks 78-150 37 7Ad-Glacial Till Over Sandstone 79-158 33 7Af-Sand&Gravel Interbedded in Till 88-152 23 7Ba-Outwash 107-179 19 7D-Buried Valley 111-179 26 7Eb-Alluvium Without Overbank Deposits 95-160 35 7Ec-Alluvium Over Bedded Sedimentary Rocks 90-138 5
Sedimentology and facies architecture of overbank deposits of the Mississippi River, False River Region, Louisiana.