![]() ![]() 2017).ĭeep-water channel and levee deposits are common depositional elements on modern and ancient continental slopes. The reasons for this temporal and spatial change in net sedimentation remain poorly understood (Clark and Pickering 1996 Deptuck et al. ![]() This is followed sometime thereafter by a second phase characterized by extensive channel filling, placing sandy channel-fill beds in direct contact with older, laterally adjacent levee deposits (Piper and Normark 2001 Navarro et al. 2004 Straub and Mohrig 2008 Eggenhuisen et al. 1993 Clark and Pickering 1996 Elliott 2000 Sullivan et al. Generally, it is explicitly stated, or more commonly diagrammatically implied, that channellevee systems experience an initial phase dominated by erosion and bypass in the channel thalweg and deposition and aggradation along the margins, resulting in major levee development and increasing channel relief through time as levee deposition outpaces in-channel deposition (Normark et al. Overspilling flows deposit sediment that forms topographically elevated levees that act to partially confine flow to the channel (Buffington 1952 Piper and Normark 19aHay, 1987bClark and Pickering 1996 Hiscott et al.
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