Budding geos would get a kick out of the following work conducted by the NSW government.
http://www.dpi.nsw.gov.au/minerals/geological/about/mapping/koonenberry-geological-mapping-project
http://www.dpi.nsw.gov.au/minerals/geological/info/bulletin-35
If the Koonenberry belt was nothing special, then would they go to all of this effort?