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  • The principal deposit is situated in Portion 47, Parish of Kempfield, County of Georgiana, four miles west-northwest of Trunkey in a direct line and about seven miles by road, which is mostly fairly rough and hilly. The Sugarloaf deposit is 1.5 miles south of the main workings and other lesser occurrences are known in the area. The main deposits and the Sugarloaf area were examined on April 27th, 1943, in the company of Mr. F. Canavan of this Branch, and Mr. Henry, who works the main quarry on behalf of W.T. Harris. The accompanying plan, Plate 1, is the result of a compass, clinometer and tape survey. Plate 2, is a geological plan of the locality taken from a map prepared by H.G. Raggatt to accompany a report to the New South Wales Mines Department on the Trunkey-Tuena Goldfield.

  • This dataset maps the geomorphic habitat environments (facies) for 63 Northern Territory coastal waterways. This version of the dataset includes 48 newly mapped estuaries, classified as 'Near pristine'. The classification system contains 12 easily identifiable and representative environments: Barrier/back-barrier, Bedrock, Central Basin, Channel, Flood- and Ebb-tide Delta, Fluvial (bay-head) Delta, Intertidal Flats, Mangrove, Rocky Reef, Saltmarsh/Saltflat, Tidal Sand Banks (and Unassigned). These types represent habitats found across all coastal systems in Australia. Estuaries on the northern Arnhem Land, Gulf of Carpentaria coasts are predominantly tide-dominated estuaries, which vary greatly in size and floodplain characteristics.

  • The map of iron oxide copper-gold (IOCG) potential of the Gawler Craton, South Australia, shows the spatial distribution of key 'essential ingredients' of IOCG ore-forming systems. These 'ingredients' include: (a) rock units of the Gawler Range-Hiltaba Volcano-Plutonic Association, subdivided by supersuite; (b) faults/shear zones subdivided by interpreted age of youngest significant movement; (c) copper geochemistry (>200ppm), from drill holes intersecting crystalline basement (Mesoproterozoic and older); (d) hydrothermal alteration assemblages and zones, based on drill hole logging, potential-field interpretation, and inversion modelling of potential-field data; and (e) host sequence units considered important in localising IOCG alteration and mineralisation. Also shown are Nd isotopic data and the mineral isotopic ages of late Palaeoproterozoic to early Mesoproterozoic magmatism and hydrothermal minerals. Areas with the greatest number of 'essential ingredients' are considered to have the maximum potential for IOCG mineralisation. IOCG potential of the Gawler Craton is shown as domains with ranks from 1 to 4, with 1 being the highest rank. Notes detailing the sources of data and methods used in constructing the map are provided in a separate file available on the Geoscience Australia website.

  • The dataset provides the spatially continuous data of the seabed gravel content (sediment fraction >2000 µm) expressed as a weight percentage ranging from 0 to 100%, presented in 0.01 decimal degree resolution raster format. The dataset covers the Australian continental EEZ, including seabed surrounding Tasmania. It does not include areas surrounding Macquarie Island, and the Australian Territories of Norfolk Island, Christmas Island, and Cocos (Keeling) Islands or Australia's marine jurisdiction off of the Territory of Heard and McDonald Islands and the Australian Antarctic Territory. This dataset supersedes previous predictions of sediment gravel content for the Australian Margin with demonstrated improvements in accuracy. Accuracy of predictions varies based on density of underlying data and level of seabed complexity. Artefacts occur in this dataset as a result of insufficient samples in relevant regions. This dataset is intended for use at national and regional scales. The dataset may not be appropriate for use at local scales in areas where sample density is insufficient to detect local variation in sediment properties. To obtain the most accurate interpretation of sediment distribution in these areas, it is recommended that additional samples be collected and interpolations updated.

  • This GIS dataset represents digital files accompanying the Index of Airborne Geophysical Surveys (14th edition) 2014, which presents a summary of specifications of open file surveys held in GA's National Airborne Geophysical Database. The product provides spatial coverage and metadata for all magnetic, radiometric and AEM surveys for which spatial information is available, current to 21 March 2014. The GIS dataset is useful for making maps showing the coverage of open file Australian airborne geophysical surveys.

  • This dataset maps the geomorphic habitat environments (facies) for 85 Western Australia coastal waterways. The classification system contains 11 easily identifiable and representative environments: Barrier/back-barrier, Central basin, Channel, Coral, Flood- and Ebb-tide Delta, Fluvial (bay-head) Delta, Intertidal Flats, Mangrove, Rocky Reef, Saltmarsh/Saltflat, Tidal Sand Banks (and Unassigned). These types represent habitats found across all coastal systems in Australia. Western Australia has a diverse range of Estuaries due to different climates. Ranging from mostly "near pristine" and tide influenced estuaries in the north to "near pristine" wave dominated estuaries in the southwest region.

  • This dataset maps the geomorphic habitat environments (facies) for 131 New South Wales coastal waterways. The classification system contains 12 easily identifiable and representative environments: Barrier/back-barrier, Bedrock, Central Basin, Channel, Coral, Flood- and Ebb-tide Delta, Fluvial (bay-head) Delta, Intertidal Flats, Mangrove, Rocky Reef, Saltmarsh/Saltflat, Tidal Sand Banks (and Unassigned). These types represent habitats found across all coastal systems in Australia. Most of the estuaries of New South Wales are under intense land use pressure with approximately 80% of the State's population living near an estuary (NSW Dept of Land and Water Conservation) .

  • Marketing information flyer outlining National Geographic Information Group's (NGIG) function and capability with Geoscience Australia. Examples of capability include details on the National Elevation Data Framework (NEDF) and MapConnect - maps online. Map Connect has been decommisioned and replaced by Interactive Maps.

  • The OzEstuaries online GIS contains data for Australian estuaries (coastal waterways) and for oceans in the Australian region. Estuaries data include geomorphic habitat mapping, estuary condition, colour composite images (Landsat, MODIS and Quickbird satellite imagery and aerial photography), benthic classifications (from Landsat satellite imagery), bathymetry and population centres. Oceanic data include dissolved organic matter, chlorophyll concentration, suspended solids concentration and sea surface temperature (using MODIS satellite imagery) and bathymetry. The GIS provides facilities to search for and zoom to estuaries, integrate mapping and imagery datasets, and retrieve statistical information from the OzEstuaries database; allowing users to view spatial and statistical information. The oceanic imagery provides a regional context for coastal waterways. The GIS is part of Geoscience Australia's contribution to the Cooperative Research Centre for Coastal Zone, Estuary and Waterway Management (Coastal CRC). The geomorphic habitat mapping was conducted by Geoscience Australia for the National Land and Water Resources Audit, and is also part of Geoscience Australia's contribution to the Coastal CRC.

  • Map(s) of Grain size distribution (sand [2000-20 um], silt [20-2 um] and clay [<2 um]) in bulk Top Outlet Sediment (TOS) and/or Bottom Outlet Sediment (BOS) samples. Source: The Geochemical Atlas of Australia (Caritat and Cooper, 2011)