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Geological Survey of Victoria - Major Initiatives

Project Description Information

Gold Undercover

Gold Undercover estimated the potential undiscovered gold prospectivity of the northern parts of the Stawell, Bendigo and Melbourne zones. The program culminated in 24 reports, along with two papers which were published in scientific journals.

Research indicates that Victoria’s undiscovered gold resource in areas with deep cover could be as much as 80 million ounces.

  1. Gold Undercover Reports

Rediscover Victoria

The Rediscover Victoria initiative included three rounds of drilling grants to minerals tenement and geothermal exploration permit holders.

A total of 23 successfully completed, State-wide projects delivered 33,000 metres of drilling. Target commodities included molybdenum, gold, copper, silver, nickel and other base metals.

In addition, one hole was drilled to investigate geothermal basal heat flow.

The 3D Victoria project was undertaken as part of Rediscover Victoria. A 3D geological model was developed for the entire state as well as for several key regions.

  1. Rediscover Victoria Drilling Reports
  2. Final Report on the Rediscover Victoria Drilling Initiative 2007-2011
  3. 3D Victoria Reports
  4. 3D Geological Models

Victorian Initiative for Minerals and Petroleum

The Victorian Initiative for Minerals and Petroleum (VIMP) was instrumental in the discovery of new gas fields in the Otway Basin, mineral sands in northwest Victoria and new gold prospects throughout the state.

Mineral exploration initiatives enabled a geoscientific data package to be compiled for Victoria with data comprising geology, geophysics, geochemistry, boreholes, tenements, mineral deposits and cultural features.

Petroleum exploration initiatives involved detailed studies of the regional geology of the Gippsland and Otway basins in order to assess the remaining hydrocarbon potential of these provinces.

  1. Victorian Initiative for Minerals and Petroleum Exploration Reports
  2. Petroleum Atlas of Victoria (provides a summary of the VIMP regional investigations)

Seamless Geology

The Seamless Geology project harmonised geological boundaries and the aspatial properties of geological concepts such as unit names, lithology and metamorphic grade. The structural zones of Victoria were utilised as the basis for compartmentalising the geology, starting with the Bendigo Zone due to its importance to the Gold Undercover initiative.

  1. Surface Geology of Victoria 2011 (A3,  1:250,000 map book)
  2. Victoria – Seamless Geology 2014 (geoscientific data package)
  3. The Tasman Fold Belt System of Victoria (special publication)
  4. Seamless geology reports and technical records detailing the stratigraphic unit name changes (GSV Report 129, GSV Report 130, GSV TR2010/1 & GSV TR2011/1)

Beneath Bass Strait: linking Tasmania and mainland Australia using a novel seismic experiment

Beneath Bass Strait was a collaborative project between several organisations and the Geological Survey of Victoria.

Twenty-four broadband seismometer stations were deployed along the Victorian and Tasmanian coastlines bounding Bass Strait, and on various islands within Bass Strait, to record background seismic energy and earthquake data over several months.

The data provides insight into relative crustal velocities and so could be used to construct three-dimensional velocity maps at crustal-scale. The maps reveal the deep crustal structure beneath Bass Strait and the nature of the geological linkage between Tasmania and Victoria.

Understanding the broad scale geology of southeast Australia is of national importance because the area is host to an abundance of petroleum, geothermal and mineral resources.

The data was also a (successful) test of existing GSV models, including the Selwyn Block model and geological models of western Victoria developed from the 2006 pmd*crc/ Geoscience Australia collaboration (see ‘Earth Echoes’ in the Major Initiatives table).

  1. S. Pilia, S., Rawlinson, N., Cayley, R.A., Bodin, T., Musgrave, R., Reading, A.M., Direen, N.G and Young, M.K., 2015, Evidence of micro-continent entrainment during crustal accretion. Scientific Reports.
  2. S. Pilia, S., Rawlinson, N., Direen, N.G., Reading, A.M., Cayley, R.A., Pryer, L., Arroucauf, P and Duffett, M, 2014, Linking mainland Australia and Tasmania using ambient seismic noise tomography: Implications for the tectonic evolution of the east Gondwana margin. Gondwana Research (online)
  3. Cayley, R.A., Taylor, D.H., VandenBerg, A. H. M. and Moore, D. H., 2002, Proterozoic – Early Palaeozoic rocks and the Tyennan Orogeny in central Victoria: The Selwyn Block and its tectonic implications. Australian Journal of Earth Sciences, Vol. 49, No. 2