Geological lines (contacts, faults) and geological rock units, derived from 1:250,000 geology data. Rock units have been simplified based on a parent 1:500,000 unit, geological boundaries have been generalised to be suitable for 1:500,000 scale data. The digital data is available as a seamless state wide coverage and is used to produce the Geology of Tasmania 1:500,000 Scale map.

The data are derived from the 1:250,000 Geology data. Rock units have been simplified based on a parent 1:500,000 unit, geological boundaries have been generalised to be suitable for 1:500,000 scale data.

Position Accuracy: Based on 1:250,000 Geology Data accuracy. Generalisation of rock units fit to 1:500,000 digital topography (coastline) base gives a final accuracy of up to +-500m. Attribute Accuracy: Data is accurate at time of data compilation/generalisation to the best knowledge of the people compiling the map, given the state of geological knowledge. Logical Consistency: All polygons, lines and point data labelled. All vertices are snapped and all polygons close. All data is topologically related. There are no duplicates. Completeness: Statewide coverage, including King and Flinders Islands. Many attribute fields are unfilled.