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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 directions. Symmetrical ripples are commonly found in shallow waters. Beaches are a good place to find these ripples.

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  • 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 directions. Symmetrical ripples are commonly found in shallow waters. Beaches are a good place to find these ripples. While wave-formed ripples are traditionally described as symmetrical, asymmetric wave ripples are common in shallow waters along sandy shores. They are produced by bottom oscillations generated by passing breaker waves, which have unequal intensity in opposite directions. Wave-formed ripples indicate an environment with weak currents where water motion is dominated by wave oscillations. Although symmetrical ripples are also called bi-directional ripples there is a difference between them. Bi-directional ripples are rarely symmetrical due to the difference in force of the two directions, where as the wave formed or oscillation ripples form from the circular water movement pattern of water molecules. These ripples form parallel to the shore line. They usually display rounded troughs and rounded crests. (en)
  • Riplemarki falowe – riplemarki powstałe pod wpływem oscylacyjnego ruchu wody. Posiadają zwykle długie i proste zaokrąglone grzbiety i stosunkowo symetryczne profile. Często wykazują bifurkację (rozwidlanie się grzbietów). W przekroju poprzecznym przez wnętrze riplemarka falowego widać zestawy lamin przekątnych oddzielonych powierzchniami niezgodności. Laminy w poszczególnych zestawach mogą być pochylone w różnych kierunkach. (pl)
  • 浪成波痕(英語:wave-formed ripples)是沉積物(砂岩、石灰岩、粉砂岩)和沙丘的特徵。這些波痕標記特徵是對稱的橫截面和較長直的波峰。因此與水流波痕(波痕)不同,這些浪成波痕通常可能分叉。又可能會被後續波痕截斷。它們的波長(週期性)取決於波浪中的沉積物粒度、水深和水粒子軌道。在潮灘上,浪成波痕的模式可能很複雜,因爲受深度和風向以及潮汐徑流方向變化的影響。 對稱浪成波痕常見於淺水區。雖然浪成波痕通常是對稱的,但不對稱的在沙灘沿岸的淺水中很常見。它們是由通過垮塌浪波(水粒子運動觸底)產生的底部振盪而產生的,底部振盪在相反方向強度不同。 浪成波痕的環境表示微弱水流波痕環境。 雖然對稱波痕也稱為雙向波痕,但它們之間是有區別的。 由於兩個方向的力不同,雙向波痕很少是對稱的,其中波浪形成或振蕩波痕是由水分子的圓形水運動模式形成的。 這些波痕與海岸線平行。 它們通常顯示圓形槽和圓形波峰。 (zh)
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  • Riplemarki falowe – riplemarki powstałe pod wpływem oscylacyjnego ruchu wody. Posiadają zwykle długie i proste zaokrąglone grzbiety i stosunkowo symetryczne profile. Często wykazują bifurkację (rozwidlanie się grzbietów). W przekroju poprzecznym przez wnętrze riplemarka falowego widać zestawy lamin przekątnych oddzielonych powierzchniami niezgodności. Laminy w poszczególnych zestawach mogą być pochylone w różnych kierunkach. (pl)
  • 浪成波痕(英語:wave-formed ripples)是沉積物(砂岩、石灰岩、粉砂岩)和沙丘的特徵。這些波痕標記特徵是對稱的橫截面和較長直的波峰。因此與水流波痕(波痕)不同,這些浪成波痕通常可能分叉。又可能會被後續波痕截斷。它們的波長(週期性)取決於波浪中的沉積物粒度、水深和水粒子軌道。在潮灘上,浪成波痕的模式可能很複雜,因爲受深度和風向以及潮汐徑流方向變化的影響。 對稱浪成波痕常見於淺水區。雖然浪成波痕通常是對稱的,但不對稱的在沙灘沿岸的淺水中很常見。它們是由通過垮塌浪波(水粒子運動觸底)產生的底部振盪而產生的,底部振盪在相反方向強度不同。 浪成波痕的環境表示微弱水流波痕環境。 雖然對稱波痕也稱為雙向波痕,但它們之間是有區別的。 由於兩個方向的力不同,雙向波痕很少是對稱的,其中波浪形成或振蕩波痕是由水分子的圓形水運動模式形成的。 這些波痕與海岸線平行。 它們通常顯示圓形槽和圓形波峰。 (zh)
  • 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 directions. Symmetrical ripples are commonly found in shallow waters. Beaches are a good place to find these ripples. (en)
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  • Riplemarki falowe (pl)
  • Wave-formed ripple (en)
  • 浪成波痕 (zh)
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