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  • This map shows the area of the Commonwealth South East Trawl Sector 700m Depth Closure within the Commonwealth South East Trawl Sector (CSETS), also known as the South East Trawl Fishery (SETF) of the Southern and Eastern Scalefish and Shark Fishery. Modified from GeoCat 68489 (2008) as per the Southern and Eastern Scalefish and Shark Fishery (Closures) Direction No. 1 2009 - Schedule 20. Produced for the Australian Fisheries Management Authority. Not for public sale or distribution by GA.

  • A revised structural evolution comprising both extensional and contractional events has been developed for the St Ives region in the south central Kalgoorlie Terrane, and these events shaped the development of the fault architecture which controlled the location of regional anticlines, centres of magmatic emplacement and deposition of the entire Archaean greenstone succession. The centre of the St Ives region is dominated by a regional anticline and this was likely established early during the D1 extensional history. The regional anticline is an important architectural element because 1) subsequent magmatism and ultimately mineralising fluids were focussed into this up-domed region, and 2) deformation was partitioned across the limbs and crest of this structure, resulting in a complex interplay of pathways for different fluids to mix.

  • The Cooper Basin in eastern Australia contains significant volumes of rock experiencing anomalously high rates of internal heat production (via deep radiogenic granites intruding the Proterozoic basement). Thick sedimentary sequences in the Cooper and overlying Eromanga Basins provide a thermal blanketing effect resulting in temperatures up to 270° C at depths <5 km. The region hosts Australia's first planned commercial Enhanced Geothermal System (EGS) now under development at Habanero-1 and -3.

  • This map shows the boundary of the Maratime Security Zones for each port for the purposes of Maratime Transport Office Security Act 2003. 1 Sheet (colour) October 2009 Not for sale or public distribution. Contact Manager LOSAMBA project.

  • An A4 map showing Australia's Maritime Jurisdiction depicting Australia's extended continental shelf approved by the Commission on the Limits of the Continental Shelf in April 2008 and other shaded areas on a blue Etopo2 and Blue Marble background. also show GA's satellite reception areas For internal use as at 10 July 2008.

  • Hot Rock geothermal exploration in Australia is significantly different to methods used for conventional geothermal plays elsewhere in the world. Hot Rock geothermal plays in the most essential form comprise a heat source and insulating layer. In Australia, high-heat producing granites (HHPG) are the presumed heat source, while low-conductivity sedimentary rocks provide the insulator necessary to create an accumulation of heat and elevated temperatures. It is presumed that other elements of a geothermal play can be introduced, such as using hydrofracturing or chemical treatment to achieve the required permeability, or the injection of circulation water.

  • Overview of the Deep Crustal Seismic surveys conducted by Geoscience Australia and funded through the Onshore Energy Security Program since it's commencement in 2006 to September 2009.

  • This map shows the area of the Eastern South Australia Trawl Closure within the Commonwealth Trawl Sector (also known as the South East Trawl Fishery (SETF)) of the Southern and Eastern Scalefish and Shark Fishery. Modified from GeoCat 68492 (2008) as per the Southern and Eastern Scalefish and Shark Fishery (Closures) Direction No. 1 2009 - Schedule 22. Produced for the Australian Fisheries Management Authority. Not for public sale or distribution by GA.

  • Hyperspectral images from the Eastern Fold Belt of the Mount Isa Inlier, released by the collaborative Queensland NGMM project between GSQ and CSIRO, were validated as new tool for the detection of IOCG related alteration. High resolution of mineral maps derived from hyperspectral imaging (4.5m/pixel) enables the recognition of various types of hydrothermal alteration patterns and the localisation of fluid pathways. Groundtruthing of a suite of mineral maps was conducted in 2007. Though sample analyses in the lab is still in process, but some preliminary results already show some promising features. In summary hyperspectral images provide a powerful tool for the recognition of various hydrothermal alteration patterns and could be used in combination with other geophysical remote sensing data, such as radiometrics and magnetics. Limitations of this technique are defined by unsatisfactory coverage of mineral maps, man made features, river systems and distribution and composition of debris. A good knowledge of the local geology is necessary to extract the full information provided by the mineral maps. Calibration of ASTER data with the hyperspectral data can hopefully extend interpretation made from the HyMap data into adjacent areas, which are only covered by ASTER. 60pp final report and databases.

  • This map shows the boundary of the Maritime Security Zones for each port for the purpose of the Maritime Transport & Office Security Act 2003. 6 sheets (Colour) September 2009 Not for sale or public distribution Contact Manager LOSAMBA project, PMD