Retrogradation

Retrogradation is the landward change in position of the front of a

• Progradation – Growth of a river delta into the sea over time
• River delta – Silt deposition landform at the mouth of a river
• Aggradation – Increase in land elevation due to the deposition of sediment
• Marine transgression – Geologic event in which sea level rises relative to the land
• Marine regression – Geologic event in which sea level falls relative to the land
• Sedimentology – Study of natural sediments and their formation processes
• Stratigraphy – Study of rock layers and their formation
• Sequence stratigraphy – Study and analysis of groups of sedimentary deposits
• Sediment transport – Movement of solid particles, typically by gravity and fluid entrainment

References

Schlumberger Oilfield Glossary

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