Pset_GeoObsPtObservationCommon Properties for geo-science observations at points. IfcGeoScienceObservation/LOCALINFORMATION IfcGeoScienceObservation/LOCALINFORMATION Weathering Description of the physical and chemical changes produced by atmospheric agents in rocks or other deposits at or near the earth's surface. These changes result in disintegration and decomposition of the material. Veining Description of observed vein structures related to hydrothermal alteration, mineralisation etc. GroundTemperature Ground temperature expected in the subject section. Karst Description of expected or observed karst features. Boulders Description of expected or observed boulders features. GasType Type of natural gas occurence in the subject section. GasConcentration Expected concentration of gas to be encountered during excavation. GroundwaterAgressiveness Rating of the agressiveness e.g. towards concrete, according to national standards. GroundwaterTemperature Groundwater temperature observed at specific location or expected in the subject section.