Diatom

{
  "id": "MLC-T-OAG-001057",
  "term": "Diatom",
  "field": "Oil and gas",
  "definition": "A single-celled alga that secretes a hard, porous cell wall made of silica, known as a frustule. These microscopic organisms live in aquatic environments and are a major component of phytoplankton. Accumulations of diatom frustules form diatomaceous earth, which can be a source rock for hydrocarbons or a reservoir rock itself.",
  "subject": "Geology",
  "url": "https://mlchart.com/terminology/oil-and-gas/diatom/"
}