Part of the seafloor undisturbed by waves
Wave base Lower shoreface refers to the portion of the seafloor, and the sedimentary depositional environment , that lies below the everyday wave base . [ 1]
Process
The wave base is the maximum depth at which a water wave's passage causes significant water motion.[ 1]
In this portion of the coastal marine environment, only the larger waves produced during storms have the power to agitate the seafloor.
Hummocky cross-stratification sandstone sedimentary structure , Cretaceous era Book Cliffs formation, Utah.Between storms, finer grained sediments accumulate on the seafloor, but during storms those sediments get suspended and moved around, resulting in a sedimentary structure form described as hummocky cross-stratification .[ 1]
See also
References
^ a b c R. G. Dean and R. A. Dalrymple (1991). Water wave mechanics for engineers and scientists . Advanced Series on Ocean Engineering. Vol. 2. World Scientific, Singapore. ISBN 978-981-02-0420-4
