MetamorphicDescription describes the character of metamorphism applied to a CompoundMaterial or GeologicUnit using one or more properties including estimated intensity (grade; eg high grade, low grade), characteristic metamorphic mineral assemblages (facies; eg, greenschist, amphibolite), peak P-T estimates, and protolith material if known.
| Egenskap |
Stereotype |
Beskrivelse |
Type |
Multiplisitet |
| metamorphicFacies |
estimatedProperty |
A description of characteristic mineral assemblages indicative of certain metamorphic P-T conditions. Examples include Barrovian metasedimentary zones (eg: biotite facies, kyanite facies) or assemblages developed in rocks of more mafic composition (eg: greenschist facies, amphibolite facies).
|
CGI_Term |
1..* |
| metamorphicGrade |
estimatedProperty |
A term to indicate the intensity or rank of metamorphism applied to an EarthMaterial (eg: high metamorphic grade, low metamorphic grade)
Indicates in a general way the P-T environment in which the metamorphism took place. Determination of metamorphic grade is based on mineral assemblages (ie, facies) present in a rock that are interpreted to have crystallized in equilibrium during a particular metamorphic event.
|
CGI_Term |
1..1 |
| peakPressureValue |
estimatedProperty |
A numerical value to indicate the estimated pressure at peak metamorphic conditions.
|
Quantity |
1..1 |
| peakTemperatureValue |
estimatedProperty |
A numerical value to indicate the estimated temperature at peak metamorphic conditions.
|
Quantity |
1..1 |
| protolithLithology |
estimatedProperty |
An interpretation of the EarthMaterial that constituted the pre-metamorphic lithology for this metamorphosed CompoundMaterial. |
EarthMaterial |
1..* |
| Navn |
Type |
Lengde |
Multiplisitet |
|
CGI_Term |
|
1..* |
|
CGI_Term |
|
1..1 |
|
Quantity |
|
1..1 |
|
Quantity |
|
1..1 |
|
EarthMaterial |
|
1..* |
| Navn |
Beskrivelse |
| metamorphicFacies is not null or metamorphicGrade is not null |
|
