(A) Schematic cross section across a channel-levee system, and the corresponding gamma-ray or SP logs. Note the vertical decrease in the grain sizes of the levee sediments. This figure illustrates two scales of levees: those outside of the main or master channel (shown in green and orange) and those within the master channel and associated with the smaller channels (shown in yellow). Modified from Beaubouef et al. (2004). (B) Similar model for a single channel-levee/overbank deposit, illustrating characteristics of channel margins and the proximal and distal levee. After Slatt et al. (1998).
(A) Reprinted with permission of AAPG, whose permission is required for further use.
|
