If a feature has a property which takes an array of geometry elements as its value, this is called a geometry array property. A generic type for such a geometry property is GeometryArrayPropertyType. 
The elements are always contained inline in the array property, referencing geometry elements or arrays of geometry elements via XLinks is not supported.

<complexType name="GeometryArrayPropertyType">
    <annotation>
        <documentation>If a feature has a property which takes an array of geometry elements as its value, this is called a geometry array property. A generic type for such a geometry property is GeometryArrayPropertyType. 
The elements are always contained inline in the array property, referencing geometry elements or arrays of geometry elements via XLinks is not supported.</documentation>
    </annotation>
    <sequence minOccurs="0" maxOccurs="unbounded">
        <element ref="gml:AbstractGeometry" />
    </sequence>
    <attributeGroup ref="gml:OwnershipAttributeGroup" />
</complexType>

• GeometryArrayPropertyType
• gml:geometryMembers