MLchartDataset catalogue

CI

Term · Oil and gas · MLC-T-OAG-004263

An abbreviation for Color Index, a number representing the percentage of dark, ferromagnesian (mafic) minerals in an igneous rock. It is determined by a visual estimate or point-counting of a thin section under a microscope. The CI is used to classify igneous rocks, with low values indicating felsic rocks like granite and high values indicating mafic rocks like basalt.

Table 1. Record
IdentifierMLC-T-OAG-004263
FieldOil and gas
SubjectGeology
Record as JSON 
{
  "id": "MLC-T-OAG-004263",
  "term": "CI",
  "field": "Oil and gas",
  "definition": "An abbreviation for Color Index, a number representing the percentage of dark, ferromagnesian (mafic) minerals in an igneous rock. It is determined by a visual estimate or point-counting of a thin section under a microscope. The CI is used to classify igneous rocks, with low values indicating felsic rocks like granite and high values indicating mafic rocks like basalt.",
  "subject": "Geology",
  "url": "https://mlchart.com/terminology/oil-and-gas/ci/"
}

Record 722 of 4,469 in Oil and gas terminology (MLC-0103). Request the full dataset.