Mudrock

{
  "id": "MLC-T-OAG-002470",
  "term": "Mudrock",
  "field": "Oil and gas",
  "definition": "A fine-grained sedimentary rock composed primarily of clay and silt-sized particles, forming the most abundant type of sedimentary rock on Earth. Mudrocks serve as source rocks, seals, and unconventional reservoirs in petroleum systems due to their low permeability and high organic content. This category includes shale, claystone, siltstone, and marlstone, distinguished by their composition and degree of lamination.",
  "subject": "Shale Gas",
  "url": "https://mlchart.com/terminology/oil-and-gas/mudrock/"
}