The Stavely Project is a collaboration between Geoscience Australia and the Geological Survey of Victoria. During 2014 fourteen pre-competitive stratigraphic drill holes were completed in the prospective Stavely region in western Victoria in order to better understand subsurface geology and its potential for a variety of mineral systems. The Stavely region hosts several belts of poorly-exposed Cambrian volcanic and intrusive rocks, visible largely only in magnetic data, which have similarities to those found in modern subduction-related tectonic settings. Mineralisation associated with porphyry Cu-Au and volcanic-hosted massive sulphide mineral systems is known where these rocks are exposed around Mount Stavely and the Black Range. However, despite a history of mineral exploration dating back to the late 1960s, significant economic deposits are yet to be discovered, and the Stavely region remains a greenfields terrane. Given the geological setting and known mineral potential, opportunity exists for the discovery of large mineral systems beneath extensive, but relatively thin, younger cover. The Stavely Project aims to provide the framework for discovery in the Stavely region primarily through the acquisition and delivery of pre-competitive geoscientific data. This includes the completion of pre-competitive stratigraphic drill holes in order to test regional geological interpretations and recover material for detailed lithological, petrophysical, geochemical and geochronological analysis. The results will assist in understanding the mineral systems potential of the Stavely region under cover. This report summarises data collected in the field at the drill sites, either during or immediately following drilling, as part of the Stavely Project, and describes the methods and procedures used. Data presented in this release include drill hole collar information, operational metadata and daily drilling reports, drill core photographs, down-hole surveys, down-hole wireline geophysical logging results, down-hole temperature logging results, down-hole AutoSondeTM gamma data, Lab-at-RigTM X-ray fluorescence data, diamond drill core recovery percentages, and handheld magnetic susceptibility measurements on the drill core.

These digital data represent the results of the 3-year AGSO-AMIRA P482 project on the metallogeny of the Archaean Yilgarn granites. Data include granite geochemistry, granite classification, geochronology, U-Pb and Sm-Nd isotope data, and selected geological and field data. All results and interpretations from the project largely hinge on the granite classification scheme. All granites have been classified using the traditional suite and supersuite hierarchical nomenclature, although this has been modified slightly for this project, with the use of Group, Association and Clan. Granite group has been used to indicate the 5 fundamental granite types (High-Ca, Low-Ca, Mafic, Syenitic and High-HFSE), identified in the region by Champion & Sheraton (1993, 1997). The association is a simple extension of the granite group, being the name used to denote a granite group within one of the three tectonic subprovinces of the Yilgarn Craton (Southern Cross Province, Eastern Goldfields Province, Murchison Province), eg, the High-Ca group equals the Mainland, Diemals and Menangina associations in the Murchison Province, Southern Cross Province, and Eastern Goldfields Province, respectively. Clan, which falls between Association and Supersuite, was introduced largely because of the large number of identified supersuites (the latter in part caused by the difficulty in identifying individual pluton (unit) boundaries). Clans, therefore, are collections of supersuites with largely similar overall chemical characteristics. The dataset contains a layer of interpretation of the aeromagnetic data of the Yilgarn Craton. The dataset also includes point layers showing distribution of the selected geochemical data, geochronological data and mineral occurrence. See README.TXT file for a more comprehensive listing.

Legacy product - no abstract available

Initial 'straw man' used in the targeting exercise and developed from earlier Y4 (PDT) Meeting in May 2007

Y4 Presentation of introduction to Targeting and the terrane-scale targeting (presented to sponsors at the final PDT Meeting in Kalgoorie May 2007)

Y4 Presentation of camp-scale targeting (presented to sponsors at the final PDT Meeting in Kalgoorie May 2007)

This is an extended abstract prepared for the Mines and Wines conference run by SMEDG_GSNSW_AIG in Orange, NSW on 18-21 September 2007.

Many countries around the world have carried out national-scale geochemical surveys, providing important information on the natural concentration of chemical elements and compounds in the near-surface regolith. Resultant data and information layers have been put to a multitude of uses: Identifying targets for mineral exploration; improving land-use management and environmental policy development; and providing information for studies into the health and well-being of humans, animals and plants. Between 2003 and 2007 several regional geochemical pilot surveys were conducted in Australia. These surveys have identified element concentrations that relate to soil acidity and salinity, reflect known areas of mineralisation, or are above or below national and international agricultural soils guidelines. In 2007, following on from the success of the pilot surveys, Geoscience Australia established Australia's first national geochemical survey. Working in collaboration with State and Territory geoscience agencies, ultra low-density sampling of catchment outlet (overbank) sediments from two depths (0-10 cm below surface and from a 10 cm interval at around 60-90 cm) has commenced. Samples are prepared and split into <2 mm and <75 mm fractions before both are analysed using a wide range of analytical techniques including XRF and ICP-MS. To date, 80% of samples have been collected and 50% of the total number of samples have been analysed. Ultimately the National Geochemical Survey of Australia project will rapidly and cost-effectively deliver a national geochemical atlas and a new dataset that will underpin positive outcomes in the exploration and mining, environmental, agricultural, forestry, recreational, and health and well-being sectors.

The National Geochemical Survey of Australia (NGSA) project aims to provide pre-competitive data and knowledge to support exploration for energy resources in Australia (www.ga.gov.au/ngsa) and is part of Geoscience Australia's Onshore Energy Security Program. The NGSA project, which is carried out in collaboration with the geological surveys of all States and the Northern Territory, will deliver the nation's first geochemical atlas, a comprehensive geochemical database and preliminary reports when it concludes in June 2011. Catchment outlet sediments (similar to floodplain sediments in most cases) were sampled during 2007-2009 near the outlet of 1186 catchments covering ~80% of the country (average sample density 1 sample per 5500 km2). Samples were collected at two depths: 0-10 cm below the surface (top outlet sediment, TOS) and between on average 60 and 80 cm depth (bottom outlet sediment, BOS). Samples were dried and sieved to either <2 mm (coarse) or <75 mm (fine) fractions, yielding four samples per site. The geochemical data presented here is from total element content analysis by x-ray diffraction after lithium borate fusion (for potassium) and collision cell inductively coupled plasma-mass spectrometry after lithium borate fusion followed by hydrofluoric and nitric acid digestion (for thorium and uranium). (.../... truncated)

Global gold resource endowment of geological regions in Australia based on aggregate past gold production and current resources.