<?xml version="1.0" encoding="utf-8"?>
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  <IfcVersion version="IFC4X4" />
  <Name>Pset_GeoScienceFeatureTypeFold</Name>
  <Definition>Properties for folds.</Definition>
  <Applicability />
  <ApplicableClasses>
    <ClassName>IfcGeoScienceFeature/FOLD</ClassName>
  </ApplicableClasses>
  <ApplicableTypeValue>IfcGeoScienceFeature/FOLD</ApplicableTypeValue>
  <PropertyDefs>
    <PropertyDef ifdguid="4a3946ac64764f9782908c6ca5f705d8">
      <Name>ProfileType</Name>
      <Definition>Contains a term from a controlled vocabulary specifying the concave/convex geometry of fold relative to earth surface, and relationship to younging direction in folded strata if known (e.g., antiform, synform, neutral, anticline, syncline, monocline, ptygmatic).</Definition>
      <PropertyType>
        <TypePropertySingleValue>
          <DataType type="IfcIdentifier" />
        </TypePropertySingleValue>
      </PropertyType>
      <NameAliases />
      <DefinitionAliases />
    </PropertyDef>
    <PropertyDef ifdguid="98a956b2e03f4d35802e8b6a6d3a7f68">
      <Name>StrikeDirection</Name>
      <Definition>The geographic direction of a line created by the intersection of a plane and the horizontal plane. If non specific convention is used, this angular value is in the range 0 to 180 degrees. A strike value is generally completed with an indication of the dip direction.</Definition>
      <PropertyType>
        <TypePropertySingleValue>
          <DataType type="IfcPlaneAngleMeasure" />
        </TypePropertySingleValue>
      </PropertyType>
      <NameAliases />
      <DefinitionAliases />
    </PropertyDef>
    <PropertyDef ifdguid="4780ea795035493abe486e7c45294fa6">
      <Name>DipDirection</Name>
      <Definition>The geographic direction of a line created by the intersection of a plane and the horizontal plane. If non specific convention is used, this angular value is in the range 0 to 180 degrees. In this case, there is an ambiguity on the dip orientation. For example, a plane with an orientation of 90 degrees from the north could either have a dip direction to the North or to the South. Thus, to avoid this ambiguity, a strike value is generally completed with an indication of the dip orientation (Quadrant).</Definition>
      <PropertyType>
        <TypePropertySingleValue>
          <DataType type="IfcPlaneAngleMeasure" />
        </TypePropertySingleValue>
      </PropertyType>
      <NameAliases />
      <DefinitionAliases />
    </PropertyDef>
  </PropertyDefs>
  <PsetDefinitionAliases />
</PropertySetDef>