Peg-leg multiple

{
  "id": "MLC-T-OAG-002727",
  "term": "Peg-leg multiple",
  "field": "Oil and gas",
  "definition": "A multiple that reflects at different interfaces on its downward and upward legs, so its path is not symmetric about the reflection point. It typically adds a short extra round trip between two shallow interfaces, or between a shallow interface and the surface, to the path of a primary from a deeper reflector. It therefore arrives just after that primary, overlapping and distorting its waveform instead of standing apart as a separate event.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/peg-leg-multiple/"
}