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Retrogradation is the landward change in position of the front of a river delta with time. This occurs when the mass balance of sediment into the delta is such that the volume of incoming sediment is less than the volume of the delta that is lost through subsidence, sea-level rise, and/or erosion. As a result, retrogradation is most common: * during periods of sea-level rise which results in marine transgression. This can occur during major periods of global warming and the melting of continental ice sheets. * with extremely low sediment input.

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  • Retrogradieren (de)
  • Retrogradation (en)
  • Retrogradatie (nl)
  • 退积 (zh)
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  • Als Retrogradieren oder Retrogradation (lat.: retro = rückwärts; gradus = Schritt; zurückschreiten) wird in der Sedimentologie die Verschiebung der horizontalen Fazies­abfolge in Richtung der Ränder oder der Schwellenregionen eines Sedimentbeckens in der Zeit bezeichnet. Dies erfolgt in der Regel im Zusammenhang mit einer (marinen) Transgression. Im Gegensatz dazu steht das Progradieren, bei der sich die Faziesgürtel in Richtung des Zentrums bzw. weg von den Schwellenregionen eines Sedimentbeckens bewegen. (de)
  • Retrogradation is the landward change in position of the front of a river delta with time. This occurs when the mass balance of sediment into the delta is such that the volume of incoming sediment is less than the volume of the delta that is lost through subsidence, sea-level rise, and/or erosion. As a result, retrogradation is most common: * during periods of sea-level rise which results in marine transgression. This can occur during major periods of global warming and the melting of continental ice sheets. * with extremely low sediment input. (en)
  • 退积(英語:retrogradation)是指河流三角洲前緣的位置隨時間向陸地方向移動。 當進入三角洲的沉積物的供應量小於沉積空間的增加、例如海平面上升或,就會造成退积 (zh)
  • Retrogradatie binnen de sedimentologie wil zeggen dat een sedimentair gesteente niet bekkenwaarts uitbouwt, maar landinwaarts inkrimpt. Dit vindt plaats wanneer de sedimentaanvoer kleiner is dan de zeespiegelstijging. Dit in tegenstelling tot de processen aggradatie en progradatie waarbij de sedimentaanvoer ongeveer gelijk aan respectievelijk groter dan de zeespiegelstijging is. (nl)
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  • Als Retrogradieren oder Retrogradation (lat.: retro = rückwärts; gradus = Schritt; zurückschreiten) wird in der Sedimentologie die Verschiebung der horizontalen Fazies­abfolge in Richtung der Ränder oder der Schwellenregionen eines Sedimentbeckens in der Zeit bezeichnet. Dies erfolgt in der Regel im Zusammenhang mit einer (marinen) Transgression. Im Gegensatz dazu steht das Progradieren, bei der sich die Faziesgürtel in Richtung des Zentrums bzw. weg von den Schwellenregionen eines Sedimentbeckens bewegen. (de)
  • Retrogradation is the landward change in position of the front of a river delta with time. This occurs when the mass balance of sediment into the delta is such that the volume of incoming sediment is less than the volume of the delta that is lost through subsidence, sea-level rise, and/or erosion. As a result, retrogradation is most common: * during periods of sea-level rise which results in marine transgression. This can occur during major periods of global warming and the melting of continental ice sheets. * with extremely low sediment input. (en)
  • Retrogradatie binnen de sedimentologie wil zeggen dat een sedimentair gesteente niet bekkenwaarts uitbouwt, maar landinwaarts inkrimpt. Dit vindt plaats wanneer de sedimentaanvoer kleiner is dan de zeespiegelstijging. Dit in tegenstelling tot de processen aggradatie en progradatie waarbij de sedimentaanvoer ongeveer gelijk aan respectievelijk groter dan de zeespiegelstijging is. Het begrijpen en onderzoeken van de processen aggradatie, progradatie en retrogradatie is een wezenlijk onderdeel van de studie van de sequentiestratigrafie, zoals die door de Amerikaanse geoloog Peter Vail is ontwikkeld. (nl)
  • 退积(英語:retrogradation)是指河流三角洲前緣的位置隨時間向陸地方向移動。 當進入三角洲的沉積物的供應量小於沉積空間的增加、例如海平面上升或,就會造成退积 (zh)
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