<complexType name="LithologyPropertyType">
  <sequence>
    <element ref="diggs:Lithology">
      <annotation>
        <documentation>A term that provides description of rocks and soils on the basis of such characteristics as color, mineralogic composition, and grain size or other physical properties. This object holds properties to encode these characteristics as both descriptions and in a controlled manner that allows for machine parsing of the soil or rock characteristics</documentation>
      </annotation>
    </element>
  </sequence>
</complexType>