Geological mapping records the distribution of rock types and location of structures at or near the Earth's surface.

Geological Survey of NSW (GSNSW) teams of field geologists, geophysicists, mineral geoscientists and palaeontologists and geospatial specialists produce a range of maps determining the potential for mineral, coal, petroleum, water and construction material resources.

The maps have applications to land use assessment, engineering construction, environmental management and natural hazard risk assessment.

A fact sheet describing geological mapping pertaining to the current MinEx CRC project is available.

Maps produced by the GSNSW:

  • Geological maps of areas are published at different scales (1:500 000, 1:250 000, 1:100 000,1:50 000 and 1:25 000) and are accompanied by explanatory notes. These geological maps have been used, with other data, to create the NSW Seamless Geology.
  • Metallogenic maps (mineral deposit) show the distribution of metallic deposits over the geology and topography of an area, the commodity type, size, value and relationships between the concentrations of metals and their geological settings.
  • Statewide maps cover the entire state and the geology is less detailed than that of smaller scales.
  • Geophysical-geological interpretation maps use information from two sources to obtain insight into geology at depth. They enable the generation of 3D models of geological bodies and structures.
  • Coastal Quaternary maps show differentiation of recent sedimentary units and information at the surface and subsurface.
  • Coalfields maps cover all main coalfields in NSW.
  • Specialist interest maps cover area of specific historical, mineralogical, geographical, environmental or tourist significance.
  • Regolith mapping show the surficial mantle of weathered rock, sediments, soils, biotic complexes and water that are formed by the natural processes of weathering, erosion, transportation and deposition.
For further information
Geological Mapping
+61 (0)2 4063 6500
Geological Mapping, Geological Survey of New South Wales, PO Box 344, Hunter Region Mail Centre NSW 2310
516 High Street Maitland NSW 2320 Map