No abstract available

34th International Geological Congress (IGC) AUSTRALIA 2012 Brisbane, Australia 2 - 10 August 2012 COPY FOR AusIMM Bulletin December 2009 The 34th International Geological Congress (IGC), or AUSTRALIA 2012, will be held at the Brisbane Convention and Exhibition Centre (BCEC), from 2-10 August 2012. The IGC is generally held every four years and has a proud 140 year tradition. Recent IGCs have attracted 5,000-7,000 delegates, many more than attended the Sydney IGC in 1976. The scientific sponsor of the IGC is the International Union of Geological Sciences (IUGS: www.iugs.org).

Subset of Rockchem whole-rock database release 3. Contains 1009 whole-rock analyses of rocks from the Arunta Block.

This set of Australian landslide images illustrates the causes of landslides, both large and small, and other earth movements. A set of 15 slides with explanatory text; includes images of Thredbo, NSW, Sorrento Vic., Gracetown WA and Tasmania.

No abstract available

A key component of Geoscience Australia's marine program involves developing products that contain spatial information about the seabed for Australia's marine jurisdiction. This spatial information is derived from sparse or unevenly distributed samples collected over a number of years using many different sampling methods. Spatial interpolation methods are used for generating spatially continuous information from the point samples. These methods are, however, often data- or even variable- specific and it is difficult to select an appropriate method for any given dataset. Machine learning methods, like random forest (RF) and support vector machine (SVM), have proven to be among the most accurate methods in disciplines such as bioinformatics and terrestrial ecology. However, they have been rarely previously applied to the spatial interpolation of environmental variables using point samples. To improve the accuracy of spatial interpolations to better represent the seabed environment for a variety of applications, including prediction of biodiversity and surrogacy research, Geoscience Australia has conducted two simulation experiments to compare the performance of 14 mathematical and statistical methods to predict seabed mud content for three regions (i.e., Southwest, North, Northeast) of Australia's marine jurisdiction Since 2008. This study confirms the effectiveness of applying machine learning methods to spatial data interpolation, especially in combination with OK or IDS, and also confirms the effectiveness of averaging the predictions of these combined methods. Moreover, an alternative source of methods for spatial interpolation of both marine and terrestrial environmental properties using point survey samples has been identified, with associated improvements in accuracy over commonly used methods.

This includes collection of core from sonic drilling and soil and water samples from boreholes and surface water. The Core is stored in plastic in core trays (4 x 1m). The water samples are disposed of once analysed.

The Corporate Administrative Records Collection of Geoscience Australia (GA) is a bi fold collection; consisting of electronic/digital documents and records in physical paper format. GA's corporate administrative records in physical format are created by the Records Management Unit upon request from staff members when their needs meet specific criteria. The files themselves are bound in cardboard folders and labelled and bar-coded according to their respective classification level and metadata information. Individually, the files are a detailed narrative of specific business activities; describing all of the administrative processes that occurred during an activity. The collection is organised according to a year series system; a method which has been constant throughout GA's evolution. The collection also consists of inherited physical records from various government departments. These include the AFFA series from the Department of Agriculture, Forestry and Fisheries Australia and the UB Series, sourced from the Uranium Branch. In collaboration with the relevant government departments, GA acceded custody of these series, and they are now managed in juxtaposition with the entire GA collection.

These products form part of the exhibition celebrating GA's involvement in the ACT and are produced as part of the ACT centenary.

The Corporate Administrative Records Collection of Geoscience Australia (GA) is a bi fold collection; consisting of electronic/digital documents and records in physical paper format. The digital collection consists of electronic information, which may be "born digital" (created using computer technology) or converted into digital form from their original format (e.g. scans of paper documents). These records are created by all GA employees and are evidence of business conducted by GA and its predecessors. The location of these digital records is in TRIM (electronic document management system). This product treats documents and records in the same way, so that end users perform the same task on all items that are stored in the system, irrespective of whether the item is a document or is to be declared as a record. The digital records can be captured in any format; e.g. excel document, word document, pdf document, emails, etc. When a user saves a document for the first time in TRIM they are prompted for metadata, which is then used to create the record.