gml:primeMeridian is an association role to the prime meridian used by this geodetic datum.
<gml:primeMeridian xlink:actuate="" xlink:arcrole="" xlink:href="" nilReason="" gml:remoteSchema="" xlink:role="" xlink:show="" xlink:title="" xlink:type="simple"> <gml:PrimeMeridian gml:id="">{1,1}</gml:PrimeMeridian> </gml:primeMeridian>
<element name="primeMeridian" type="gml:PrimeMeridianPropertyType"> <annotation> <documentation>gml:primeMeridian is an association role to the prime meridian used by this geodetic datum.</documentation> </annotation> </element>