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  • The Surface Hydrology Points (Regional) dataset provides a set of related features classes to be used as the basis of the production of consistent hydrological information. This dataset contains a geometric representation of major hydrographic point elements - both natural and artificial. This dataset is the best available data supplied by Jurisdictions and aggregated by Geoscience Australia it is intended for defining hydrological features.

  • This record describes digital data compilation product, where several individual items are grouped for delivery on single CD-ROM. Content and number of items included in the compilation package can vary, depending on size of the individual items. The contents of this CD-ROM are as follows: Catalog # Title 24289 Boulia interpreted geology 250k 24290 Springvale interpreted geology 250k

  • Data used to produce the predicted Alkalinity map for the Cadna-owie - Hooray Aquifer in the Hydrogeological Atlas of the Great Artesian Basin (Ransley et.al., 2015). There are four layers in the Cadna-owie - Hooray Aquifer Alkalinity map data A. Location of hydrochemistry samples (Point data, Shapefile) B. Predicted Concentration (Filled contours , Shapefile) C. Predicted Concentration Contours (Contours, Shapefile) D. Prediction Standard Error (Filled contours , Shapefile) The predicted values provide a regional based estimate and may be associated with considerable error. It is recommended that the predicted values are read together with the predicted error map, which provides an estimate of the absolute standard error associated with the predicted values at any point within the map. The predicted standard error map provides an absolute standard error associated with the predicted values at any point within the map. Please note this is not a relative error map and the concentration of a parameter needs to be considered when interpreting the map. Predicted standard error values are low where the concentration is low and there is a high density of samples. Predicted standard errors values can be high where the concentration is high and there is moderate variability between nearby samples or where there is a paucity of data. Concentrations are Alkalinity as CaCO3 mg/L. Coordinate system is Lambert conformal conic GDA 1994, with central meridian 134 degrees longitude, standard parallels at -18 and -36 degrees latitude. The Cadna-owie - Hooray Aquifer Alkalinity map is one of 14 hydrochemistry maps for the Cadna-owie - Hooray Aquifer and 24 hydrochemistry maps in the Hydrogeological Atlas of the Great Artesian Basin (Ransley et.al., 2014). This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 81692. References: Hitchon, B. and Brulotte, M. (1994): Culling criteria for 'standard' formation water analyses; Applied Geochemistry, v. 9, p. 637-645 Ransley, T., Radke, B., Feitz, A., Kellett, J., Owens, R., Bell, J. and Stewart, G., 2015. Hydrogeological Atlas of the Great Artesian Basin. Geoscience Australia. Canberra. [available from www.ga.gov.au using catalogue number 79790]

  • Data used to produce the predicted Calcium map for the Cadna-owie - Hooray Aquifer in the Hydrogeological Atlas of the Great Artesian Basin (Ransley et.al., 2015). There are four layers in the Cadna-owie - Hooray Aquifer Calcium map data A. Location of hydrochemistry samples (Point data, Shapefile) B. Predicted Concentration (Filled contours , Shapefile) C. Predicted Concentration Contours (Contours, Shapefile) D. Prediction Standard Error (Filled contours , Shapefile) The predicted values provide a regional based estimate and may be associated with considerable error. It is recommended that the predicted values are read together with the predicted error map, which provides an estimate of the absolute standard error associated with the predicted values at any point within the map. The predicted standard error map provides an absolute standard error associated with the predicted values at any point within the map. Please note this is not a relative error map and the concentration of a parameter needs to be considered when interpreting the map. Predicted standard error values are low where the concentration is low and there is a high density of samples. Predicted standard errors values can be high where the concentration is high and there is moderate variability between nearby samples or where there is a paucity of data. Concentrations are Calcium in mg/L. Coordinate system is Lambert conformal conic GDA 1994, with central meridian 134 degrees longitude, standard parallels at -18 and -36 degrees latitude. The Cadna-owie - Hooray Aquifer Calcium map is one of 14 hydrochemistry maps for the Cadna-owie - Hooray Aquifer and 24 hydrochemistry maps in the Hydrogeological Atlas of the Great Artesian Basin (Ransley et.al., 2014). This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 81699. References: Hitchon, B. and Brulotte, M. (1994): Culling criteria for 'standard' formation water analyses; Applied Geochemistry, v. 9, p. 637-645 Ransley, T., Radke, B., Feitz, A., Kellett, J., Owens, R., Bell, J. and Stewart, G., 2015. Hydrogeological Atlas of the Great Artesian Basin. Geoscience Australia. Canberra. [available from www.ga.gov.au using catalogue number 79790]

  • Data used to produce the predicted Alkalinity map for the Precipice Aquifer in the Hydrogeological Atlas of the Great Artesian Basin (Ransley et.al., 2015). There are four layers in the Precipice Aquifer Alkalinity map data A. Location of hydrochemistry samples (Point data, Shapefile) B. Predicted Concentration (Filled contours , Shapefile) C. Predicted Concentration Contours (Contours, Shapefile) D. Prediction Standard Error (Filled contours , Shapefile) The predicted values provide a regional based estimate and may be associated with considerable error. It is recommended that the predicted values are read together with the predicted error map, which provides an estimate of the absolute standard error associated with the predicted values at any point within the map. The predicted standard error map provides an absolute standard error associated with the predicted values at any point within the map. Please note this is not a relative error map and the concentration of a parameter needs to be considered when interpreting the map. Predicted standard error values are low where the concentration is low and there is a high density of samples. Predicted standard errors values can be high where the concentration is high and there is moderate variability between nearby samples or where there is a paucity of data. Concentrations are Alkalinity as CaCO3 mg/L . Coordinate system is Lambert conformal conic GDA 1994, with central meridian 134 degrees longitude, standard parallels at -18 and -36 degrees latitude. The Precipice Aquifer Alkalinity map is one of two hydrochemistry maps for the Precipice Aquifer and 24 hydrochemistry maps in the Hydrogeological Atlas of the Great Artesian Basin (Ransley et.al., 2015). This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 81712. References: Hitchon, B. and Brulotte, M. (1994): Culling criteria for 'standard' formation water analyses; Applied Geochemistry, v. 9, p. 637-645 Ransley, T., Radke, B., Feitz, A., Kellett, J., Owens, R., Bell, J. and Stewart, G., 2014. Hydrogeological Atlas of the Great Artesian Basin. Geoscience Australia. Canberra. [available from www.ga.gov.au using catalogue number 79790]

  • Surface geology of Australia 1:1,000,000 scale, South Australia The 1:1 million-scale "Geology of South Australia" dataset has been compiled from the latest published 1:250 000-scale and some 1:100 000-scale geological maps, modified to incorporate results of recent research by PIRSA in the Olary Domain. Much of South Australia is covered by Cenozoic regolith, mainly sand plains, dunes, playas and colluvium, with lesser silcrete, calcrete and laterite. Six main Precambrian provinces have been recognised: the Gawler and Curnamona Cratons, Musgrave Block, Officer Basin, Adelaide Fold Belt (Geosyncline) and Coompana Block (concealed). The Gawler Craton outcrops in the centre and south. Neoarchaean igneous and sedimentary rocks of the Mulgathing and Sleaford Complexes form the basement of the Craton and were metamorphosed to granulite facies during the period 2.7 to 2.4 Ga. Clastic and chemical sediments of the Hutchison Group were deposited along the eastern margin of the Craton during the Palaeoproterozoic, and were subsequently deformed during the Kimban Orogeny (1850 to 1700 Ma). Little deformed Mesoproterozoic sediments and the Gawler Range Volcanics were deposited unconformably over the older rocks, mainly in the east of the Craton. Coeval granites of the Hiltaba Suite are distributed throughout the Craton. Three domains of the Curnamona Craton - the Olary Domain, and Mt Babbage and Mt Painter Inliers - outcrop in the central east. They consist of Palaeoproterozoic schist and gneiss, metamorphosed and disrupted during the Olarian Orogeny (1700-1580Ma), and intruded by Palaeo- to Mesoproterozoic granite. The inliers were further disrupted by the Delamerian Orogeny (~500Ma) and are surrounded by Neoproterozoic to Cenozoic sediments. The Musgrave Block in the northwest of the State comprises quartzofeldspathic orthogneiss and granite, and minor pelitic, siliceous and calcareous metasediments. Widespread metamorphism at about 1600 Ma was followed by extensive granite intrusion at about 1500 Ma. Emplacement of the mafic-ultramafic Giles Complex at about 1080 Ma occurred towards the end of metamorphism and granite emplacement of the Musgravian Orogeny (1225-1075 Ma). During the Petermann Orogeny (~540 Ma), granulite of the southern Musgrave Block overthrust amphibolite facies gneiss north of the Woodroffe Thrust. Tectonic disruption on regional scale shear zones continued to the end of the Alice Springs Orogeny (400-350 Ma). During Neoproterozoic to Cambrian times, sedimentation occurred in shelf and trough settings in the Officer Basin (south of the Musgrave Block), and in the Adelaide Fold Belt. At times these basins were linked, yielding similar sedimentary sequences. The Adelaide Fold Belt was folded and disrupted during the Delamerian Orogeny (~500 Ma) and locally intruded by granite. Many of the intrusions are concealed by Murray Basin sediments, but coeval granites are exposed in the Padthaway Ridge inboard of the southeast coast. Small Precambrian inliers are exposed elsewhere in the state. They include: the Ammaroodinna and Yoolperlunna Inliers southeast of the Musgrave Block; Peake, Denison and Mount Woods inliers north of the Gawler Craton; and Houghton, Warren, Aldgate, Oakbank, and Myponga Inliers within the Adelaide Fold Belt. Carboniferous to Permian glaciation affected much of the state, and was followed by deposition of mixed marine and terrestrial sediments in the Mesozoic Eromanga Basin and Cenozoic Eyre, Murray, and Eucla Basins.

  • These data are a digital representation of information depicted on printed maps from the Australia 1:250 000 Geological Series produced by AGSO and the Northern Territory Geological Survey (NTGS) between 1963 and 1998. The data are in a tiled format and are not seamless, although basic edgematching has been done where possible. Tiles are arranged according to the standard Australian 1:250 000 sheet breakup. The complete dataset is comprised of the 90 tiles covering the Northern Territory.

  • The data comprise four datasets of variously simplified basement geology of the north-eastern Lachlan Fold Belt. The datasets cover an area from Nyngan and Dubbo in the north to Junee and Goulburn in the south. The data have been compiled and simplified from existing 1:250,000 scale digital geology maps (Cootamundra, Bathurst, Forbes, Dubbo 1:250,000 maps), as well as new basement geology interpretations for the Narromine, Goulburn and Nyngan 1:250,000 maps. All the Cainozoic sedimentary cover and a large proportion of the Permian-Mesozoic basin cover have been removed for these basement geology interpretations. Interpretation beneath the cover rocks was based primarily on regional aeromagnetic data collected by AGSO and the NSW Department of Mineral Resources under the National Geoscience Mapping Accord and Discovery 2000 programs, as well as AGSO's regional gravity dataset, and seismic data collected by the AGCRC. The most detailed dataset (SOLGEOL) summarises stratigraphic units primarily at "group" level, and is intended for display at scales greater than 1:250,000. The SOLGEOL dataset is accompanied by a structural line theme of major fold axes and trend lines (SOLGSTR). A second basement interpretation (GEOREGN1) summarises the rock units into strato-tectonic units and displays only major faults. The third basement interpretation (GEOREGN2) further simplifies the geology into major strato-tectonic groupings or regions. The latter datasets are intended for display at scales of 1:1,000,000 or greater.

  • This record describes digital data compilation product, where several individual items are grouped for delivery on single CD-ROM. Content and number of items included in the compilation package can vary, depending on size of the individual items. The contents of this CD-ROM are as follows: Catalog # Title 30630 Broken Hill and Curnamona regolith landforms maps 500k 30629 Broken Hill interpreted lithology

  • Extent of identified polygonal faulting is a regional understanding of fault displacements and fault zone characteristics within the GAB sequence. There are two layers identified within the polygonal faulting map data. A: Approximate location of polygonal faulting evident in seismic transects in the Great Artesian Basin B: Surface evidence of polygonal faulting in the Great Artesian Basin The polygonal faulting evident in seismic transects were interpreted from seismic data. The areas of surface evidence of polygonal faulting were interpreted from satellite imagery. This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 81689. REFERENCES: Ransley, T., Radke, B., Feitz, A., Kellett, J., Owens, R., Bell, J. and Stewart, G., 2015. Hydrogeological Atlas the Great Artesian Basin. Geoscience Australia. Canberra. [available from www.ga.gov.au using catalogue number 79790]