Class <<DataType>> MetamorphicDescription

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.

Local Subclasses: (none)

Attributes

Name Type Bounds From Class Notes
metamorphicFacies CGI_TermValue 0..* MetamorphicDescription 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).
Attribute tagged values
Tag Value
sequenceNumber 2
metamorphicGrade CGI_TermValue 0..1 MetamorphicDescription 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.
Attribute tagged values
Tag Value
sequenceNumber 3
peakPressureValue CGI_NumericValue 0..1 MetamorphicDescription A numerical value to indicate the estimated pressure at peak metamorphic conditions.
Attribute tagged values
Tag Value
sequenceNumber 4
peakTemperatureValue CGI_NumericValue 0..1 MetamorphicDescription A numerical value to indicate the estimated temperature at peak metamorphic conditions.
Attribute tagged values
Tag Value
sequenceNumber 5
protolithLithology EarthMaterial 0..* MetamorphicDescription An interpretation of the EarthMaterial that constituted the pre-metamorphic lithology for this metamorphosed CompoundMaterial.
Attribute tagged values
Tag Value
sequenceNumber 6
 

Outbound Associations

Name Type Multiplicity From Class Notes
 

Constraints

Constraint Type Status Weight
 

Tagged values

Tag Value Notes
byValuePropertyType false Values: true,false
Default: false
Description: enforce the 'by value' property pattern without xl
hasXmlLang false Values: true | false
Default: false
Description: axml attribute xml:lang shall be generated for the type representing the class
isCollection false Values: true,false
Default: false
Description: attribute group gml:AggregationAttributeGroup is a
noPropertyType false Values: true,false
Default: false
Description: suppress automatic creation of *PropertyType compl
 

GML-conformant XML Implementation Details

<xs:element xmlns:xs="http://www.w3.org/2001/XMLSchema" name="MetamorphicDescription" type="gsml:MetamorphicDescriptionType">
    <xs:annotation>
        <xs:documentation>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.</xs:documentation>
    </xs:annotation>
</xs:element>
<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="MetamorphicDescriptionType">
    <xs:sequence>
        <xs:element maxOccurs="unbounded" minOccurs="0" name="metamorphicFacies" type="gsml:CGI_TermValuePropertyType">
            <xs:annotation>
                <xs:documentation>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).</xs:documentation>
            </xs:annotation>
        </xs:element>
        <xs:element maxOccurs="1" minOccurs="0" name="metamorphicGrade" type="gsml:CGI_TermValuePropertyType">
            <xs:annotation>
                <xs:documentation>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.</xs:documentation>
            </xs:annotation>
        </xs:element>
        <xs:element maxOccurs="1" minOccurs="0" name="peakPressureValue" type="gsml:CGI_NumericValuePropertyType">
            <xs:annotation>
                <xs:documentation>A numerical value to indicate the estimated pressure at peak metamorphic conditions.</xs:documentation>
            </xs:annotation>
        </xs:element>
        <xs:element maxOccurs="1" minOccurs="0" name="peakTemperatureValue" type="gsml:CGI_NumericValuePropertyType">
            <xs:annotation>
                <xs:documentation>A numerical value to indicate the estimated temperature at peak metamorphic conditions.</xs:documentation>
            </xs:annotation>
        </xs:element>
        <xs:element maxOccurs="unbounded" minOccurs="0" name="protolithLithology" type="gsml:EarthMaterialPropertyType">
            <xs:annotation>
                <xs:documentation>An interpretation of the EarthMaterial that constituted the pre-metamorphic lithology for this metamorphosed CompoundMaterial.</xs:documentation>
            </xs:annotation>
        </xs:element>
    </xs:sequence>
</xs:complexType>
<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="MetamorphicDescriptionPropertyType">
    <xs:sequence>
        <xs:element ref="gsml:MetamorphicDescription"/>
    </xs:sequence>
</xs:complexType>