MLchartDataset catalogue

Down lap

Term · Oil and gas · MLC-T-OAG-001149

A seismic reflection pattern where younger, overlying strata terminate progressively downwards against an older, underlying inclined surface. This indicates a period of progradation, where sediment supply outpaced subsidence, causing deposition to extend basinward. Downlap surfaces often represent sequence boundaries or maximum flooding surfaces in sequence stratigraphy.

Table 1. Record
IdentifierMLC-T-OAG-001149
FieldOil and gas
SubjectGeology
Record as JSON 
{
  "id": "MLC-T-OAG-001149",
  "term": "Down lap",
  "field": "Oil and gas",
  "definition": "A seismic reflection pattern where younger, overlying strata terminate progressively downwards against an older, underlying inclined surface. This indicates a period of progradation, where sediment supply outpaced subsidence, causing deposition to extend basinward. Downlap surfaces often represent sequence boundaries or maximum flooding surfaces in sequence stratigraphy.",
  "subject": "Geology",
  "url": "https://mlchart.com/terminology/oil-and-gas/down-lap/"
}

Record 1,231 of 4,468 in Oil and gas terminology (MLC-0103). Request the full dataset.