This service has been created specifically for display in the National Map and the chosen symbology may not suit other mapping applications. The Australian Topographic web map service is seamless national dataset coverage for the whole of Australia. These data are best suited to graphical applications. These data may vary greatly in quality depending on the method of capture and digitising specifications in place at the time of capture. The web map service portrays detailed graphic representation of features that appear on the Earth's surface. These features include the administration boundaries from the Geoscience Australia 250K Topographic Data, including state forest and reserves.

As part of the four-year National CO2 Infrastructure Plan (NCIP), Geoscience Australia conducted a CO2 storage capacity assessment and pre-competitive data acquisition program in the offshore Gippsland Basin. This study was undertaken, in collaboration with CSIRO, to accelerate the identification of suitable long term CO2 storage sites for the development of CO2 storage infrastructure near the sources of major energy and production emissions in the Gippsland region in Victoria.

This record summarises seismicity induced by hydrofracturing. It begins with a list of issues of concern to the public about hydrofracturing. The types of fracturing are then defined-tension, shear and hybrid tension and shear-and a failure mode diagram that explains the fluid pressure and stress regimes under which each is likely to occur is introduced. The report sets out the conditions under which fresh rock is fractured and pre-existing weak faults are reactivated. Fractures grow by small increments, with each increment causing a small earthquake. Earthquake magnitudes and intensities are explained so that the fracture size can be related to earthquake magnitude. What people feel is explained in terms of earthquake intensity. The size distribution of earthquakes induced by hydrofracturing of both intact rock and reactivating existing weak faults is then summarised based on case studies in the scientific literature. The background established in the first part of the record is then applied to hydrofracturing in the coal seam gas, shale gas, enhanced geothermal and carbon sequestration sectors. The record concludes by explaining how hydrofracturing and induced seismicity contribute to a discussion of the issues of public concern listed in the introduction to the record. The record is in two parts-the main body of the record and four appendices. The main body is written in a form readable to non-seismologists, although a basic understanding of the scientific principles considered in the record would be an advantage. A more theoretical treatment of the hydrofracture process and earthquake size is given in the first two appendices. The third appendix discusses larger induced earthquakes attributed to a number of causes, including the reinjection of waste water from the unconventional gas industry. The fourth appendix summarises the current approaches to the regulation of the hydrofracturing process in several jurisdictions in Australia.

This document is linked to the Values to Our Nation booklet and the strategic plan. It contains a description of the PFGI values stream, it's objectives, projections and products, and how it aligns with the value streams complement of Geoscience Australia.

The Lord Howe Rise Project is a collaborative research to better understand the geology of the central Lord Howe Rise undertaken by Geoscience Australia and the Japan Agency for Marine-Earth Science and Technology (JAMSTEC).

Free advertisement in Teacher Talk, a monthly education and lifestyle focused magazine for Australian teachers that is electronically circulated to all Australian schools and its subscriber base of over 3,000 teachers. The advertisement will promote our online education resources.

We use random resistor network models to explore the relationship between electrical resistivity anisotropy and permeability in a fracture filled with an electrically conductive fluid. Fluid flow and current are controlled by both the distribution and the volume of pore space. Therefore the aperture distribution of fractures must be accurately modeled in order to realistically represent their hydraulic and electrical properties. We have constructed fracture surface pairs based on characteristics measured on rock samples. We use these to construct resistor networks with variable hydraulic and electrical resistance, to investigate the changes in both properties as a fault is opened. At small apertures, electrical conductivity and permeability increase moderately with aperture until the fault reaches its percolation threshold. Above this point, the permeability increases by four orders of magnitude over a change in mean aperture of less than 0.1 mm, while the resistivity decreases by up to a factor of 10 over this aperture change. Because permeability increases at a greater rate than matrix to fracture resistivity ratio, the percolation threshold can also be defined in terms of the matrix to fracture resistivity ratio, M. The value of M at the percolation threshold, MPT, varies with the ratio of rock to fluid resistivity, the fault spacing, and the fault offset. However, MPT is almost always less than 10. Greater M values are associated with fractures above their percolation threshold. Therefore, if such M values are observed over fluid-filled fractures, it is likely that they are open for fluid flow.

Abstract submitted to the 35th International Geological Congress, 27 August - 4 September 2016 Cape Town, South Africa. Deep seismic reflection profiling, combined with forward modelling of gravity data, lend strong support to the idea that the Paleo- to Mesoproterozoic Mount Isa mineral province comprises three vertically stacked and partially inverted sedimentary basins preserving a record of intracontinental rifting followed by passive margin formation.

A poster for GSWA Open Day 26 February 2016 that illudtartes in amp and textual form the collaborative geoscience proejcts between WA Government agencies and Geoscience Australia

The Petrel Sub-basin Marine Environmental Survey GA-0335, (SOL5463) was undertaken by the RV Solander during May 2012 as part of the Commonwealth Government's National Low Emission Coal Initiative (NLECI). The survey was undertaken as a collaboration between the Australian Institute of Marine Science (AIMS) and GA. The purpose was to acquire geophysical and biophysical data on shallow (less then 100m water depth) seabed environments within two targeted areas in the Petrel Sub-basin to support investigation for CO2 storage potential in these areas. This dataset comprises an interpreted geomorphic map. Interpreted local-scale geomorphic maps were produced for each survey area in the Petrel Sub-basin using multibeam bathymetry and backscatter grids at 2 m resolution and bathymetric derivatives (e.g. slope; 1-m contours). Five geomorphic units; bank, plain, ridge, terrace and valley, were identified and mapped using definitions suitable for interpretation at the local scale (nominally 1:10 000). Maps and polygons were manual digitised in ArcGIS using the spatial analyst and 3D analyst toolboxes.