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
The Crests No: 160201) Unreleased recordings The Crests The Crests were an American doo-wop group, formed by bass vocalist J.T. Carter in the mid 1950s. The group had several Top 40 hits in the late 1950s and early 1960s on Coed Records. Their most popular song, "16 Candles", rose to #2 on the "Billboard" Hot 100 chart in February 1959 selling over one million copies and earning a gold disc status. The group's other hits include "Step By Step", "The Angels Listened In", "Trouble In Paradise", "Six Nights A Week", and "A Year Ago Tonight". The Crests were the first interracially mixed