The Australian Electricity Distribution Licences Dataset is comprised of data acquired from state government, state/territory energy regulators, and company websites; and 'State of the Energy Market 2007' published by the Australian Energy Regulator (AER). The dataset is maintained on an ongoing basis, with source material acquired from company websites and state/territory agencies. Each electricity distribution licence has information containing the following attributes; Lic_Number, Location, State, NetworkLen, Asset_Base, Licence_Ty, Customers, Owner, Lic_Start Lic_Expire, Lic_Update, Source1. This dataset has been developed in conjunction with a number of related datasets including gas distribution licences, and electricity and gas retail licences.

This talk summarises the ‘essential ingredients’ considered important for formation of major Olympic Dam-style IOCG systems in the Gawler Craton, and elsewhere. A ‘working model’ of a crustal-scale IOCG system is presented for the Olympic Dam region. Finally, the newly released IOCG Potential Map of the Gawler Craton is described.

The Olympic Cu-Au province is an early Mesoproterozoic (~1570-1600 Ma) metallogenic belt along the eastern margin of the Gawler Craton, containing the Olympic Dam and Prominent Hill iron oxide Cu-Au (IOCG) deposits. Almost entirely concealed by cover, the province extends over 500 km from the Moonta-Wallaroo district through the Olympic Dam district to the Mt Woods Inlier. Based on the criteria below, and open-file company data, we propose extensions of the province to the Peake and Denison Inlier, Coober Pedy Ridge, and Mabel Creek Ridge. Guides for high-level style IOCG Hiltaba Suite felsic and mafic intrusive complexes - pancake-like intrusions emplaced at high crustal levels, which we view as symptoms of elevated heat flow around 1590 Ma that also drove hydrothermal fluid flow; mafic/ultramafic intrusive magmatism and mantle-like Sm-Nd- and S-isotopic signatures are less obvious at the sub-economic prospects than at Olympic Dam. - Regional host sequence composition - Palaeoproterozoic metasedimentary rocks of diverse composition are favourable as fluid source(s), buffers and traps; rock types include oxidised meta-arkosic units, feldspathic argillites/siltstones, carbonates and BIF. - Gawler Range Volcanics - Their presence in a district is a plus for preservation of high-level IOCG mineralisation; volcanic/maar/diatreme centres have been best documented at Olympic Dam and are not recognised at the sub-economic prospects. - Major fault networks - A major set striking NW to WNW, and dipping NE in Olympic Dam district, partly controlled hydrothermal fluid flow at ~1570-1600 Ma; a conjugate NE-striking set may be in part younger. Some of these faults probably developed during during the Kimban (~1700-1730 Ma) and/or Neil (~1850 Ma) compressive orogenies. - Regional to district scale alteration - Extensive alteration zones of magnetite, K-feldspar, actinolite, pyrite, apatite, carbonate, quartz, and minor chalcopyrite, producing magnetic-gravity anomalies; a first-order guide to the possible presence of high-level IOCG mineralisation. Regional high-temperature brines were sourced from, and/or reacted with, metasedimentary rocks but direct magmatic-hydrothermal or leached igneous contributions cannot be ruled out. - Local (deposit) scale alteration & mineralisation - Zones of abundant hematite, sericite, chlorite and carbonate are spatially and temporally associated with Cu-Fe sulfides, pyrite, fluorite, barite, and REE minerals. These oxidised alteration zones may be either above or lateral to magnetite alteration, with highest grade Cu-Au mineralisation predicted within hematitic alteration, near (10's to 100's of metres) the transition to magnetite alteration. Guides for deeper-level style IOCG (e.g., parts of Moonta-Wallaroo district & Mt Woods Inlier): - Regional host sequence composition, regional structure and intrusive associations are likely to be similar to those of high-level style IOCG, but the following regional characteristics will differ. - Volcanics coeval with mineralisation (e.g., Gawler Range Volcanics) will not be preserved if IOCG deposits have been exhumed. - Host structures - Shear zones and other brittle-ductile (rather than brittle) structures will be the dominant host structures, although tectonic-hydraulic breccias may be present if strain rates and/or fluid pressures were high (e.g., Ernest Henry style breccias). - Regional alteration - Dominated by albite-actinolite ± clinopyroxene ± magnetite rather than K-feldspar rich; additionally, magnetite-biotite alteration with minor to significant chalcopyrite-pyrite-REE mineralisation is common in deeper-level style IOCG systems, particularly in zones proximal to sulphide mineralisation. - Local (deposit) alteration - Magnetite-biotite-K-feldspar-bearing proximal alteration assemblages in felsic host rocks; intermediate to mafic host rocks will contain less feldspar and more Fe-Mg silicate alteration (e.g., amphiboles, chlorite) and carbonate.

The oldest rocks in the Australian continent, older than about 3.0 billion years, have long been thought to be restricted to relatively small areas of the Yilgarn and Pilbara cratons in Western Australia. Recent results from GA's new SHRIMP facility are changing that view, showing that early Mesoarchean (~3150 Ma) rocks are present on the eastern margin of the Gawler Craton. These rocks are approximately half a billion years older than the oldest previously-dated rock from South Australia, and indicate that parts of the Gawler Craton are of similar antiquity to parts of the Yilgarn and Pilbara. The new results have significant implications for the geodynamic evolution of the Gawler Craton and Australia more broadly. The distribution of this newly-identified ancient crust may also provide explanation for contrasting patterns of mineralisation within the Gawler Craton, and guide predictive models for mineral exploration.

Australian Presentation for the International Seabed Authority Workshop on the 'classification of polymetallic nodule resources' from the deep seabed.The UNFC provides a universal framework for deep sea polymetallic manganese nodules and other seabed mineral resources; that can be collated and utilised in a consistent way by the ISA. The UNFC allows for alignment of various national and commercial mineral reporting systems, reconciling mineral resource assessments derived though these various frameworks.

Presentation for MODSIM2013.

Pending

Presentation at the National Climate Change Adaptation Research Facility Conference in 2013 (Sydney). This presentation is based on the "Reforming Planning Processes Trial: Rockhampton 2050" report (GeoCat 75085) Potential impacts of climate change present significant challenges for land use planning, emergency management and risk mitigation across Australia. Even in current climate conditions, the Rockhampton Regional Council area is subject to the impacts of natural hazards, such as bushfires, floods, and tropical cyclones (extreme winds and storm surge). All of these hazards may worsen with climate change. To consider future climate hazard within council practices, the Rockhampton Regional Council received funding from the National Climate Change Adaptation Research Grants Program Project for a project under the Settlements and Infrastructure theme. This funding was provided to evaluate the ability of urban planning principles and practices to accommodate climate change and the uncertainty of climate change impacts. Within this project, the Rockhampton Regional Council engaged Geoscience Australia to undertake the modelling of natural hazards under current and future climate conditions. Geoscience Australia's work, within the broader project, has utilised natural hazard modelling techniques to develop a series of spatial datasets describing hazards under current climate conditions and a future climate scenario. The following natural hazards were considered; tropical cyclone wind, bushfire, storm tide, coastal erosion and sea-level rise. This presentation provides an overview of the methodology and how the results of this work were presented to the Rockhampton Regional Council for planning consideration.

PowerPoint presentation at the 2010 AusIMM Uranium Conference in Adelaide

This keynote address was presented at the Australian Nickel Conference held in Perth, 19-20 October 2005. Australia's nickel sulphide industry has had a fluctuating history since the discovery in 1966 of massive sulphides at Kambalda in the Eastern Goldfields of Western Australia. Periods of buoyant nickel prices and high demand, speculative exploration, and frenetic investment (the 'nickel boom' years) have been interspersed by protracted periods of relatively depressed metal prices, exploration inactivity, and low discovery rates. Despite this unpredictable evolution, Australia's nickel industry has had a significant impact on the world scene. This presentation reviews the characteristics and resources of Australia's nickel sulphide deposits, and highlights some of the more important challenges and new opportunities confronting the nickel industry today.