No abstract available

No abstract available

No abstract available

The Broken Hill 1:500,000 regolith-landform map describes the distribution of regolith materials using the RTMAP scheme developed by Geoscience Australia

The Cobar 1:500,000 regolith-landform map illustrates the distribution of regolith materials and the landforms on which they occur, described using the RTMAP scheme developed by Geoscience Australia

This new edition map is the perfect guide for both summer and winter travellers to alpine national parks and other reserves in south-eastern New South Wales, north-eastern Victoria and the Australian Capital Territory. The area covered extends from Canberra in the north to Bairnsdale in the south, from Batemans Bay in the east and now to Shepparton, Seymour and eastern Melbourne in the west. A convenient summary table gives the latest details of more than 20 different types of tourist services and facilities at nearly 100 localities. Road surface information has also been updated.

This record contains the results of a project to develop a comprehensive GIS package focussed on the igneous rocks of northern Queensland (16.5 to 21 degrees S, 142.0 to 147.75 degrees E). The contracted work was undertaken as a joint project between the Australian Geological Survey Organisation (AGSO), Placer Exploration Ltd and the Queensland Department of Minerals and Energy (QDME). The aims of the contract work111were to: - Digitise all available geological maps of north Queensland and construct a multi-layeredGIS package of the igneous rocks of the designated region. - Characterise all igneous units in the region based on available petrographic and geochemical data (e.g. igneous type, degree of oxidation, degree of fractionation), andincorporate this classification as an ARC/INFO database. - Incorporate AGSO's ROCKCHEM and MINLOC data as ARC/INFO databases. - Fully document the GIS package, including a comprehensive bibliography of allclassified igneous rock units of the region.

These images are derived from the "Magnetic Anomaly Grid of Australia" (GEOCAT record: 39154). That grid was compiled from 9 million line-kilometres of TMI data held in the National Airborne Geophysics Database. The data were collected in surveys conducted by Geoscience Australia and by airborne geophysical companies operating under contracts to Geoscience Australia and State and Territory Geological Surveys, either separately or in joint projects. Data from a number of other surveys, carried out for private companies, were acquired by Geoscience Australia. These datasets contain anomalies with wavelengths as small as 800 m.

This second edition preliminary three dimensional model has been constructed from themes compiled from a variety of sources and assembled primarily within a GoCAD application. The display medium for web delivery has used the Virtual Reality Modelling Language (VRML) format. Layers of data were principally supplied by Geoscience Australia. Mineral occurrence information was provided by the Northern Territory and Western Australia Geological Surveys. Interpreted 1:250 000 scale maps of the Tanami and 1:500 000 Arunta North were provided by the Northern Territory Geological Survey. Cross-sections were geophysically modelled using ModelVision software and imported into GoCAD. Structural and geological modelling of cross-sections was provided by the NTGS. Surfaces were modelled in GoCAD using cross-section data and surface constraints. The current seismic proposal has been a collaborative effort involving Commonwealth, State and private companies.

Colour ternary (K-U-TH R-G-B) gamma-ray spectrometry pixel image map covering the Andamooka, Copley, Parachilna, Orroroo and part of the Port Augusta 1:250,000 map Sheet areas.