Class <<DataType>> PhysicalDescription

PhysicalDescription describes a limited but commonly used set of physical properties of Rocks and UnconsolidatedMaterials. This set is an incomplete subset of potential physical properties that could be used to describe rocks and unconsolidated materials. Revision/extension of this list is anticipated in future versions.

Local Subclasses: (none)

Attributes

Name Type Bounds From Class Notes
density CGI_Numeric 0..* PhysicalDescription Material mass per unit volume
Attribute tagged values
Tag Value
sequenceNumber 2
magneticSusceptibility CGI_Value 0..* PhysicalDescription Material magnetic susceptibility, customarily measured in SI units. The ratio of induced magnetization to the strength of the magnetic field causing the magnetization.
Note that volume magnetic susceptibility is dimensionless, being magnetization (magnetic dipole moment) in amperes per metre (SI) divided by the applied field, also in amperes per metre. However, many tables of magnetic susceptibility and some instruments give cgs values that rely on different definitions of the permeability of free space than SI values. The cgs value of susceptibility is multiplied by 4pi to give the SI susceptibility value. For example, the cgs volume magnetic susceptibility of water at 20°C is -7.19x10-7 which is -9.04x10-6 in SI. The xml encoding should specify whether the uom is SI or cgs, and if in cgs provide a <gml:conversionToPreferredUnit>.
Attribute tagged values
Tag Value
sequenceNumber 3
permeability CGI_Value 0..* PhysicalDescription The measure of the capacity of a porous material to transmit a fluid under unequal pressure. Customary unit of measure: millidarcy
Attribute tagged values
Tag Value
sequenceNumber 4
porosity CGI_Value 0..* PhysicalDescription The percentage of the bulk volume of a material that is occupied by interstices, whether isolated or connected.
Attribute tagged values
Tag Value
sequenceNumber 5
 

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="PhysicalDescription" type="gsml:PhysicalDescriptionType">
    <xs:annotation>
        <xs:documentation>PhysicalDescription describes a limited but commonly used set of physical properties of Rocks and UnconsolidatedMaterials.  This set is an incomplete subset of potential physical properties that could be used to describe rocks and unconsolidated materials.  Revision/extension of this list is anticipated in future versions.</xs:documentation>
    </xs:annotation>
</xs:element>
<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="PhysicalDescriptionType">
    <xs:sequence>
        <xs:element maxOccurs="unbounded" minOccurs="0" name="density" type="gsml:CGI_NumericPropertyType">
            <xs:annotation>
                <xs:documentation>Material mass per unit volume</xs:documentation>
            </xs:annotation>
        </xs:element>
        <xs:element maxOccurs="unbounded" minOccurs="0" name="magneticSusceptibility" type="gsml:CGI_ValuePropertyType">
            <xs:annotation>
                <xs:documentation>Material magnetic susceptibility, customarily measured in SI units.  The ratio of induced magnetization to the strength of the magnetic field causing the magnetization.
Note that volume magnetic susceptibility is dimensionless, being magnetization (magnetic dipole moment) in amperes per metre (SI) divided by the applied field, also in amperes per metre. However, many tables of magnetic susceptibility and some instruments give cgs values that rely on different definitions of the permeability of free space than SI values. The cgs value of susceptibility is multiplied by 4pi to give the SI susceptibility value. For example, the cgs volume magnetic susceptibility of water at 20?C is -7.19x10-7 which is -9.04x10-6 in SI. The xml encoding should specify whether the uom is SI or cgs, and if in cgs provide a &lt;gml:conversionToPreferredUnit&gt;.</xs:documentation>
            </xs:annotation>
        </xs:element>
        <xs:element maxOccurs="unbounded" minOccurs="0" name="permeability" type="gsml:CGI_ValuePropertyType">
            <xs:annotation>
                <xs:documentation>The measure of the capacity of a porous material to transmit a fluid under unequal pressure.  Customary unit of measure: millidarcy</xs:documentation>
            </xs:annotation>
        </xs:element>
        <xs:element maxOccurs="unbounded" minOccurs="0" name="porosity" type="gsml:CGI_ValuePropertyType">
            <xs:annotation>
                <xs:documentation>The percentage of the bulk volume of a material that is occupied by interstices, whether isolated or connected.</xs:documentation>
            </xs:annotation>
        </xs:element>
    </xs:sequence>
</xs:complexType>
<xs:complexType xmlns:xs="http://www.w3.org/2001/XMLSchema" name="PhysicalDescriptionPropertyType">
    <xs:sequence>
        <xs:element ref="gsml:PhysicalDescription"/>
    </xs:sequence>
</xs:complexType>