the depth of the wave base is approximately.
the depth of the wave base is approximately?
depth
wave base





























the wave base, in physical oceanography, is the maximum depth at which a water wave's passage causes significant water motion. for water depths deeper than the wave base, bottom sediments and the seafloor are no longer stirred by the wave motion above.





























section::::process.





























in seawater, the water particles are moved in a circular orbital motion when a wave passes. the radius of the circle of motion for any given water molecule decreases exponentially with increasing depth. the wave base, which is the depth of influence of a water wave, is about half the wavelength.
wave base
c-type carbonate platforms are characterized by the absence of early cementation and lithification, and so the sediment distribution is only driven by waves and, in particular, it occurs above the wave base. they show two types of geometry or depositional profile, i.e., the homoclinal ramp or the distally-steepened ramp. in both geometries there are three parts. in the inner ramp, above the fair weather wave base, the carbonate production is slow enough that all sediments may be transported offshore by waves, currents and storms. as a consequence, the shoreline may be retreating, and so in the inner ramp there may be a cliff caused by erosional processes. in the middle ramp, between the fair weather wave base and the storm wave base, carbonate sediment remains in place and can be reworking only by the storm waves. in the outer ramp, below the storm wave base, fine sediments may accumulate. in distally steepened ramps, a distal step is formed between the middle and outer ramp, by the in situ accumulation of gravel-sized carbonate grains (e.g., rhodoliths) only episodically moved by currents. carbonate production occurs along the full depositional profile in this type of carbonate platforms, with an extra production in the outer part of the middle ramp, but carbonate production rates are always less than in the t-type carbonate platforms.
carbonate platform