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  • Contained in: Proceedings of papers presented at an industry workshop held in Perth, 20 June 2002. Edited by K.F. Cassidy (See link)

  • Legacy product - no abstract available

  • The love affair geoscientists have had with their PCs leads many to think that a do-it-yourself approach can carry us into the dotcom era. However, the secret to the success of major online businesses is their mastery of the `backend' the logical, physical and human infrastructure that forms the foundation to their web sites. These businesses know that their customers are best served by focusing on the hard bit, the backend. Attractive web pages get customers in, but what keeps them returning is the quality, quantity and timeliness of the content behind the web site. Most successful dotcom companies have restructured, or built from the ground up, to provide the best possible backends. Geological surveys must do likewise to survive.

  • This report is an annual report which provides information and statistics on Australia's oil and gas resources. The statistics in this report include data for the calendar year 1999.

  • Although extensive geochemical baseline studies have been conducted in many countries, including the UK, Finland, Norway, Poland, USA, Japan, China and New Zealand, they have not been attempted in Australia. Where conducted elsewhere, geochemical baseline surveys have been used to 1) help determine the natural state of the environment, 2) contribute valuable information to help develop more informed environmental policies, and 3) provide potential targets for mineral exploration, 4) provide information for geohealth studies, in combination with epidemiological data. To make a start in this direction in Australia, a pilot study has been conducted to assess whether valid baseline information could be obtained through analyzing existing whole-rock geochemical data at both regional and local scales. The regional study focused on southeastern Australia, whilst the local study centered on the Bathurst 1:250 000 map sheet area. Data were drawn from Geoscience Australia?s large OZROCKS and OZMIN databases. The existing regional scale data had a highly variable sampling density and there was a strong possibility of a sampling bias being incorporated in the data analysis. To eliminate anomalies that were associated with known mining activities, mineral occurrence densities were also created and combined with maps of anomalous concentrations of uranium, lead, zinc, gold and arsenic. Whilst not ideal, these regional data still showed some broad scale trends and identified smaller target areas for more detailed work. As the Bathurst study area had a higher sample density, a more comprehensive analysis was possible. Statistical analysis was conducted to identify spurious and highly anomalous data, which were then removed from the dataset. The geochemical points were validated to ensure that they were located in the correct geological unit. This allowed the data to be viewed in their geological context. The geochemical values were then extrapolated across like geological polygons and trends of elemental concentrations in rock types became apparent. Although some useful information was obtained in both the regional and area-scale studies, the results were clearly influenced by the fact that the geochemical samples were collected for specific and disparate studies. Hence, it was concluded that existing whole-rock geochemical data are not generally appropriate for use in baseline geochemical surveys. This led to the acceptance that a new, carefully planned survey is needed to obtain useful baseline geochemical data for Australia. In recognition of this need, a pilot geochemical study involving Geoscience Australia and CRC LEME is currently underway in the Riverina bioregion, based on stream sediments/overbank sediments. It is hoped that this study will prove information that is sufficiently interesting to engender support for a systematic geochemical coverage across large portions of the continent.

  • In collaboration with the relevant State Geological Surveys and Phil Blevin of Petrochem Consultants, Geoscience Australia is coordinating in a new project to assess the metallogenic potential of major Australian Phanerozoic granite suites and their associated host rocks in Eastern Australia. The project will use the methodology of previous GA/AGSO projects (Budd et al., 2001; Champion, & Heinemann, 1994) and industry-sponsored projects (AMIRA projects P147B, P425, P515) and will synthesise publicly available geoscience datasets to provide a better basis for targeting potential of granite-related Au base metal mineralisation. The goal of the project is to assist companies investigating new deposit styles, in particular the recently proposed model for Intrusion-related gold.

  • Powerpoint presentation displaying the Online Petroleum Databases (Stratdat/Resfacs/Orgchem/Wells) and the new Interactive Provinces web page.

  • Documentation describing the ROCKCHEM version 1 release of the McArthur Basin and Murprhy Inlier subset. Also describes the structure of the Oracle database.