Bright spot

{
  "id": "MLC-T-OAG-000461",
  "term": "Bright spot",
  "field": "Oil and gas",
  "definition": "A localized high-amplitude seismic reflection anomaly that indicates the possible presence of hydrocarbons. It forms where a low-impedance gas sand is overlain by a higher-impedance shale, creating a strong negative reflection coefficient that appears as a bright event on a seismic section. While a bright spot is a direct hydrocarbon indicator, similar anomalies can also be caused by other lithologies, such as low-density coal seams or brine-filled sands.",
  "subject": "Geophysics",
  "url": "https://mlchart.com/terminology/oil-and-gas/bright-spot/"
}