<?xml version="1.0" encoding="utf-8"?>
<PropertySetDef xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" ifdguid="694f7250c5fb46648c4b0c595c3a2a3c" templatetype="PSET_OCCURRENCEDRIVEN" xsi:noNamespaceSchemaLocation="http://buildingSMART-tech.org/xml/psd/PSD_IFC4.xsd" xmlns="http://buildingSMART-tech.org/xml/psd/PSD_IFC4.xsd">
  <IfcVersion version="IFC4X4" />
  <Name>Pset_GeoObsCommon</Name>
  <Definition>Common properties for geoscience observations.</Definition>
  <Applicability />
  <ApplicableClasses>
    <ClassName>IfcGeoScienceObservation</ClassName>
    <ClassName>IfcBorehole</ClassName>
    <ClassName>IfcSensor</ClassName>
    <ClassName>IfcSpatialZone/MAPPEDZONE</ClassName>
    <ClassName>IfcSpatialZone/TESTEDZONE</ClassName>
  </ApplicableClasses>
  <ApplicableTypeValue>IfcGeoScienceObservation,IfcBorehole,IfcSensor,IfcSpatialZone/MAPPEDZONE,IfcSpatialZone/TESTEDZONE</ApplicableTypeValue>
  <PropertyDefs>
    <PropertyDef ifdguid="1779311ae1a64dce8af7d72372c9f474">
      <Name>ObservationStartDate</Name>
      <Definition>Start date when the observation was made.</Definition>
      <PropertyType>
        <TypePropertySingleValue>
          <DataType type="IfcDate" />
        </TypePropertySingleValue>
      </PropertyType>
      <NameAliases />
      <DefinitionAliases />
    </PropertyDef>
    <PropertyDef ifdguid="690fc3142652421d96534891b8944075">
      <Name>ObservationEndDate</Name>
      <Definition>End date when the observation was made.</Definition>
      <PropertyType>
        <TypePropertySingleValue>
          <DataType type="IfcDate" />
        </TypePropertySingleValue>
      </PropertyType>
      <NameAliases />
      <DefinitionAliases />
    </PropertyDef>
    <PropertyDef ifdguid="159ce726701349c9bf1a48fba1443f2c">
      <Name>Lithology</Name>
      <Definition>Defines all natural materials resulting from the combination of minerals, particles or biogenic elements.</Definition>
      <PropertyType>
        <TypePropertySingleValue>
          <DataType type="IfcLabel" />
        </TypePropertySingleValue>
      </PropertyType>
      <NameAliases />
      <DefinitionAliases />
    </PropertyDef>
  </PropertyDefs>
  <PsetDefinitionAliases />
</PropertySetDef>