This class is a blank placeholder for a vocabulary of terms to describe the role that a compositional part plays in a geologic unit.
This class is a blank placeholder for a vocabulary of terms describing the nature of the parts of a geologic unit, e.g. facies, stratigraphic, interbeds, geographic, eastern facies,
This class is an indicative placeholder only for a vocabulary of terms describing the type of geologic unit. Users are encouraged to use the vocabulary of unit types provided by the CGI vocabularies working group.
Refers to a vocabulary of terms describing the dominant alteration mineralogy or alteration type, in common usage. Examples include: argillic, phyllic, potassic, propylitic, calc-silicate, skarn, deuteric, greisen, serpenitisation, weathering, etc.
This class is a blank placeholder for a vocabulary of terms describing the rank of a geologic unit (eg, Group, Formation, Member, etc)