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In geology, ripple marks are sedimentary structures (i.e., bedforms of the lower flow regime) and indicate agitation by water (current or waves) or directly by wind.
Las ondulitas, rizaduras o ripple-marks (es muy común el uso del término en inglés) son estructuras sedimentarias que se forman por la acción de una corriente de agua o viento sobre un sustrato de arena suelta. Las de mayor tamaño se denominan dunas, especialmente las de origen eólico.
ripple mark, one of a series of small marine, lake, or riverine topographic features, consisting of repeating wavelike forms with symmetrical slopes, sharp peaks, and rounded troughs.
11 de oct. de 2019 · Waves cause ripples to be symmetric because both sides of the ripple become alternatively sites of erosion and deposition while water moves back and forth. Recognizing wave ripples can tell us whether an ancient sandstone deposited on a shoreline rather than on a river bank or a dune field.
8 de ene. de 2024 · Nature Geoscience - Wind tunnel experiments and numerical modelling reveal the existence of two distinct ripples on Earth: centimetre-scale impact ripples and decimetre-scale hydrodynamic...
Ripples, ripple marks, or ripple structures can be defined as small-scale, flow-transverse ridges of silt or sand produced by fluid shear at the boundary between moving water or air and an erodible sediment bed.
8 de abr. de 2019 · Terrestrial and planetary subaqueous and aeolian ripples and dunes can be compared in a unified framework, according to simulations with a hydrodynamic and sediment transport model.
