Wave-formed ripple Wave-formed ripple In sedimentology, wave-formed ripples or wave-formed ripple marks are a feature of sediments (sandstones, limestones, siltstones) and dunes. These ripple marks are often characterised (and thus distinguished from current ripples) by symmetric cross sections and long relatively straight crests, which may commonly bifurcate. Commonly, these crests can be truncated by subsequent flows. Their wavelength (periodicity) depends on the sediment grain size, water depth and water-particle orbits in the waves. On tidal flats the pattern of wave-formed ripples may be complicated, as a product of changing depth and wind and tidal runoff directions. Symmetrical ripples are commonly found in
A Wave, a WAC and a Marine no idea what I wanted to do. But he put up the money and we decided on the crazy story "A Wave, a WAC and a Marine"." Karlson called the movie "probably the worst picture ever made... It was a nothing picture, but I was lucky because it was for Monogram and they didn't understand how bad it was because they had never made anything that was any good." However it did launch Karlson's directing career. A Wave, a WAC and a Marine A WAVE, a WAC and a Marine is an American 1944 musical comedy film directed by Phil