Legacy product - no abstract available

Legacy product - no abstract available

Legacy product - no abstract available

Significant advances in regional exploration and surface materials mapping are possible using spectral data and specialized remote sensing methods. Benefits for mineral explorers, land-users, government and university researchers are now available using improved ASTER calibration techniques. HyMap and ASTER calibration, processing and standardisation approaches have been produced as part of a large multi agency project to facilitate uptake of these techniques and make them easily integrated with other datasets in a GIS. Collaborative research comprising Geoscience Australia, the Commonwealth Scientific Research Organisation (CSIRO) and state and industry partners, on the world-class Mt Isa mineral province in Queensland was completed in 2008 as a test-case for some new methods. The project demonstrated that geochemical information about mineral deposit 'footprints' and alteration chemistry can be acquired by analysing spectral ground response, particularly in the short-wave infra-red. Key materials that can be identified include clays and magnesium/ iron/ aluminium oxyhydroxides, as well as information on mineral composition, abundance and physicochemistries (including crystallinity) for minerals such as kaolinite, which can be used as a surrogate for identifying transported versus in situ regolith material. The identification and classification of regolith materials and thickness indicators is essential to facilitate on-going exploration in many challenging regions such as South Australia.

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.

A map showing selected mines, mineral deposits and historice mines on the radiometric map of Australia. 1:5 million scale.

Australia's mineral resources are an important component of its wealth, and a long term perspective of what is likely to be available for mining is a prerequisite for formulating sound policies on resources and land-access. The national resource stocks are quantified in the annual online publication: Australia's Identified Mineral Resources: http://www.australianminesatlas.gov.au/aimr/index.jsp, which provides Geoscience Australia's assessments based on its national mineral resource classification system. This paper summarises Australia's national classification system for Identified Mineral Resources. Estimating global stocks of mineral and energy commodities is becoming increasingly important. This requires mapping of categories between the various the mineral and energy classification systems in use, and rationalising these systems where feasible. This paper also outlines how Australia's national system correlates with other mineral and energy resource classification systems.

This data package is an archive of geospatially located and other digital data covering the southern Arunta region, a portion of the North Australia Project undertaken to understand elements within the North Australia Craton and its boundaries. It includes digital geospatical feature data and /or images for a number of 1:250 000 and 1:100 000 geological maps, mineral locations, geophysical images, company drill hole and rock chip data, geochemistry, and regional themes. It also includes publications and geospatial data relating to the mafic-ultramafic study module in the southern Arunta.

Cenozoic basins of the Lake Frome region in South Australia host the Beverley in-situ recovery uranium mine as well as the Honeymoon, Four Mile, Oban, and Goulds Dam deposits and recently discovered Pepegoona prospect several kilometres to the north of Beverley. Most deposits occur in organic-rich sands and silts of the Eocene Eyre Formation or Miocene Namba Formation (Beverley). However, the recognition of Eromanga Basin host rocks at the Four Mile West deposit (Heathgate Resources, pers. comm., 2009) extends the age range of host stratigraphic units into the Mesozoic. We define the Frome Uranium Province as the 3-dimensional volume encompassing known and potentially mineralised areas of Cenozoic and Mesozoic basins in the Lake Frome region, constrained on three sides by Proterozoic inliers (Fig. 1). The northern extent of the metallogenic province is unknown; recent discovery of anomalous uranium in Cenozoic sediments near Moomba (Crescent Gold Ltd, September 2009, www.crescentgold.com) points to the potential of the Lake Eyre Basin for uranium mineralisation well to the north of Lake Frome.

Summary report on the ore prospects of some Western Australian gold mines. The report provides details on production, ore deposits, and operations.