Class <<Type>> Rock (extends CompoundMaterial )

A consolidated aggregate of one or more EarthMaterials, or a body of undifferentiated mineral matter, or of solid organic material [adapted from Jackson, 1997]. Includes polymineralic mineral aggregates such as granite, shale, schist, and monomineralic aggregates such as calcite limestone or marble. Excludes unconsolidated materials. Materials not classified as Rocks in this model include volcanic glass (inorganic fluid, non-crystalline) and coal (organic material).

Local Subclasses: (none)

Attributes

Name Type Bounds From Class Notes
color CGI_TermValue 0..* EarthMaterial Terms to specify color of the earth material. Color schemes such as the Munsell rock and soil color schemes could be used.
Attribute tagged values
Tag Value
sequenceNumber 2
purpose DescriptionPurpose 1..1 EarthMaterial Specification of the intended purpose/level of abstraction for the given EarthMaterial. Scoped name because intention is asserted by author of the data instance.
Values: Instance, TypicalNorm, IdentifyingNorm.
Attribute tagged values
Tag Value
sequenceNumber 3
compositionCategory CGI_TermValue 0..* CompoundMaterial Term to specify the gross compositional character of a compound material. Composition as used here is loosely construed to include both chemical composition and petrograpic composition, thus multiple values may be applied to a single rock, e.g. metaluminous and alkalic, undersaturated and basic, etc. Terms would typically include broad chemical classifications such as silicate, carbonate, ferromagnesian, oxide. However, this attribute may have different terminology for different kinds of rocks - for example sandstone petrographic classification terms (e.g. feldspathic) might be placed here.
Attribute tagged values
Tag Value
sequenceNumber 2
geneticCategory CGI_TermValue 0..* CompoundMaterial A term that represents a summary geologic history of the material. (ie, a genetic process classifier term) Examples include igneous, sedimentary, metamorphic, shock metamorphic, volcanic, pyroclastic.
Attribute tagged values
Tag Value
sequenceNumber 3
consolidationDegree CGI_Term 0..1 Rock A property that specifies the degree to which an aggregation of EarthMaterial particles is a distinct solid material. Consolidation and induration are related concepts specified by this property. They define a continuum from poorly-cemented collections of particles to very hard rock. Induration is the degree to which a consolidated material is made hard, operationally determined by how difficult it is to break a piece of the material. Consolidated materials may have varying degrees of induration (NADMSC, 2004)
For the 'Rock' class the consolidationDegree should be 'consolidated' or one of its sub categories.
Attribute tagged values
Tag Value
sequenceNumber 2
lithology ControlledConcept 1..* Rock A controlled concept indicating the name of the rock type (eg, quartz sandstone, basalt, muscovite schist). Igneous rock definitions are governed by IUGS agreed vocabulary.
Attribute tagged values
Tag Value
sequenceNumber 3
 

Outbound Associations

Name Type Multiplicity From Class Notes
metadata MD_Metadata 0..1 EarthMaterial
Association tagged values
Tag Value
inlineOrByReference byReference
sequenceNumber 10
fabric FabricDescription 0..* CompoundMaterial Contains the description of the fabric
Association tagged values
Tag Value
sequenceNumber 4
part ConstituentPart 0..* CompoundMaterial Specifies the ConstituentPart that makes up part of the CompoundMaterial
Association tagged values
Tag Value
sequenceNumber 6
particleGeometry ParticleGeometryDescription 0..1 CompoundMaterial Describes the particle geometry of the CompoundMaterial
Association tagged values
Tag Value
sequenceNumber 7
physicalProperty PhysicalDescription 0..1 Rock Describes the physical properties of the Rock
Association tagged values
Tag Value
sequenceNumber 4
 

Constraints

Constraint Type Status Weight
if present, consolidationDegree is "consolidated" or greater (e.g. "indurated") Invariant Approved 0.00
 

Tagged values

Tag Value Notes
byValuePropertyType 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
xmlSchemaType Description: no type shall be generated for the class, but the
 

GML-conformant XML Implementation Details

<xs:element xmlns:xs="http://www.w3.org/2001/XMLSchema" name="Rock" substitutionGroup="gsml:CompoundMaterial" type="gsml:RockType">
    <xs:annotation>
        <xs:documentation>A consolidated aggregate of one or more EarthMaterials, or a body of undifferentiated mineral matter, or of solid organic material [adapted from Jackson, 1997].  Includes polymineralic mineral aggregates such as granite, shale, schist, and monomineralic aggregates such as calcite limestone or marble.  Excludes unconsolidated materials.  Materials not classified as Rocks in this model include volcanic glass (inorganic fluid, non-crystalline) and coal (organic material).</xs:documentation>
    </xs:annotation>
</xs:element>
<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="RockType">
    <xs:complexContent>
        <xs:extension base="gsml:CompoundMaterialType">
            <xs:sequence>
                <xs:element maxOccurs="1" minOccurs="0" name="consolidationDegree" type="gsml:CGI_TermPropertyType">
                    <xs:annotation>
                        <xs:documentation>A property that specifies the degree to which an aggregation of EarthMaterial particles is a distinct solid material. Consolidation and induration are related concepts specified by this property. They define a continuum from poorly-cemented collections of particles to very hard rock. Induration is the degree to which a consolidated material is made hard, operationally determined by how difficult it is to break a piece of the material. Consolidated materials may have varying degrees of induration (NADMSC, 2004)
For the 'Rock' class the consolidationDegree should be 'consolidated' or one of its sub categories.</xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element maxOccurs="unbounded" minOccurs="1" name="lithology" type="gsml:ControlledConceptPropertyType">
                    <xs:annotation>
                        <xs:documentation>A controlled concept indicating the name of the rock type (eg, quartz sandstone, basalt, muscovite schist).  Igneous rock definitions are governed by IUGS agreed vocabulary.</xs:documentation>
                    </xs:annotation>
                </xs:element>
                <xs:element maxOccurs="1" minOccurs="0" name="physicalProperty" type="gsml:PhysicalDescriptionPropertyType"/>
            </xs:sequence>
        </xs:extension>
    </xs:complexContent>
</xs:complexType>
<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="RockPropertyType">
    <xs:sequence minOccurs="0">
        <xs:element ref="gsml:Rock"/>
    </xs:sequence>
    <xs:attributeGroup ref="gml:AssociationAttributeGroup"/>
</xs:complexType>