AndreaBozzo/ceres-open-data-index huggingface dataset:
Katherine-Mt Evelyn, NT, 1975/76 (P428), magnetic line data, AWAGS levelled

Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
 These line dataset from the Katherine-Mt Evelyn, NT, 1975/76 survey were acquired in 1975 by the NT Government, and consisted of 22193 line-kilometres of data at 1500m line spacing and 150m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

Tags: AWAGS, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NT, Published_External, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 428, vector
Organization: Geoscience Australia Data
Hydrogeology of the Kakadu Conservation Zone  near Coronation Hill, Northern Territory

Groundwater extraction is proposed to fulfil the partial water supply requirements for the proposed gold-platinum-palladium mine at Coronation Hill, Northern Territory. 
The aquifers in the Conservation Zone surrounding the mine are fractured Proterozoic dolomite and volcanic rocks. These aquifers are recharged partly by direct infiltration of rainfall, and partly by inflow from upstream reaches of the South Alligator River. Theaquifers discharge to downstream reaches of the river. The environmental impact review of the mine proposal has raised two hydrogeological issues: whether seepage of cyanide-bearing process water will pollute the aquifer and river; and whether aquifer drawdown will affect the flow and ecology of the river. 
Available information indicates that some cyanide-bearing process water will seep into the aquifer, but that the pollution plume will be attenuated to some extent by chemical reaction and degradation. Available river stage data have been used to estimate the effects of drawdown due to proposed extraction of groundwater for mine water supply, and also mine pit groundwater inflow. The long term groundwater extraction and pit inflow is probably about 25 L/s. River flow at Coronation Hill has fallen below 250 L/s on 84 days in 8 out of a documented 51 months, and the long term groundwater extraction and pit inflow is equivalent to about 10 % of river flow in these low flow months. The wellfield should be designed for minimal drawdown, and management criteria should be developed to avoid ecological damage in low flow conditions.
Remaining doubts about the river/aquifer interaction need to be resolved by further investigations.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, hydrogeology
Organization: Geoscience Australia Data
Hooley 1:100 000 topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

Tags: 100K scale, AU-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Woodroffe 1:250 000 GIS Dataset

This data is part of the series of maps that covers the whole of Australia at a scale of 1:250 000 (1cm on a map represents 2.5km on the ground) and comprises 513 maps. This is the largest scale at which published topographic maps cover the entire continent. 
Data is downloadable in various distribution formats.

Tags: 250K scale, AU-SA, Earth Sciences, GIS Dataset, Published_External, dataset, topography
Organization: Geoscience Australia Data
The Cobar AEM Survey interpretation report

The Cobar Airborne Electromagnetic (AEM) Survey was undertaken as part of the Geological Survey of NSW’s involvement with the Mineral Exploration Cooperative Research Centre (MinEx CRC). MinEx CRC is a 10-year, $220 million collaboration between federal and state governments, the Commonwealth Science, and Industrial Research Organisation (CSIRO), leading Australian universities and the minerals industry. It aims to reveal the covered geology of the Australian continent to aid mineral exploration.
The Cobar Basin has had a long history (&gt;150 years) of mining and mineral exploration, with the growth of many towns and other industries in the region driven (and sustained) by its activities. The mineralised outcropping basement rocks in the Basin have largely been identified and incorporated in mining activities. However, these basement rocks extend undercover (for tens to a few hundreds of metres depth) away from these outcrops and have not been accurately mapped and constrained in these areas. Suitable water supplies and water security are also major issues in the Cobar Basin, with many areas relying on water supplied from hundreds of kilometres away and/or intermittent surface water flow. 
Airborne electromagnetic surveys (used in conjunction with other geoscientific datasets) can be useful techniques to help map the depth, character, and extent of prospective basement rocks. AEM surveys can also help to map groundwater features such as aquifers and palaeochannels that could supply water resources to the mining industry, agriculture, and other human activities/infrastructure.

Tags: EARTH SCIENCES, GEOLOGY, GEOPHYSICS, Groundwater, airborne electromagnetics, mapping, mineral exploration
Organization: Geoscience Australia Data
GSQ Hodgkinson Georgetown Block A Qld percent potassium grid geodetic

The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
This radiometric potassium grid has a cell size of 0.00096 degrees (approximately 104m) and shows potassium element concentration of the Hodgkinson-Georgetown Block A, QLD, 1999, Prospectivity Plus Init. in units of percent (or %). The data used to produce this grid was acquired in 1999 by the QLD Government, and consisted of 93258 line-kilometres of data at a line spacing between 200m and 400m, and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NCI, Published_External, QLD, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, spectrometry, survey 797
Organization: Geoscience Australia Data
Stuart Shelf (P197923), gravity point data

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
 This Stuart Shelf (P197923) contains a total of 1939 point data values acquired at a spacing between 100 and 500 metres. The data is located in SA and were acquired in 1979, under project No. 197923 for Department of Minerals and Energy (Victoria).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 197923
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Lennis (sg52-13)

AUSGeoid98 data files contain a 2 minute grid of AUSGeoid98 data covering the Australian region, which you can use to interpolate geoid-ellipsoid separations for the positions required.You can use your own interpolation software, or you can use Geoscience Australia's Windows Interpolation software (Winter). The data files are text files in a standard format that cover the same area as standard topographic map areas. Files covering both 1:250,000 (approximately 100 x 150 km) and 1:1,000,000 (approximately 400 x 600 km) map areas are available. There is a 4 minute overlap on all sides of each area. Data format: AUSGeoid98 data files have a header record at the start of each file, to distinguish them from the superseded AUSGeoid93 data files. AUSGeoid98 data files show the geoid-ellipsoid separation to 3 decimal places, while the superseded AUSGeoid93 data files showed only 2 decimal places. AUSGeoid98 deflections of the vertical were computed from the geoid-ellipsoid separation surface, while the AUSGeoid93 deflections of the vertical were computed from OSU91A.

Tags: AU, AUSGeoid98, Geodesy, Geodetic Data, Published_External, dataset, geodesy
Organization: Geoscience Australia Data
Gas Shale Potential of the Amadeus and Georgina Basins, Australia: Preliminary Insights

Twenty-four samples provided by Geoscience Australia were analysed using screening methods to provide a preliminary insight into the gas shale potential of the Amadeus and Georgina Basins, Australia. Eleven samples from the Amadeus Basin include the Bitter Springs Formation (Late Neoproterozoic), Lower Giles Creek Dolomite (Middle Cambrian), Goyder Formation (Middle Cambrian) and Horn Valley Siltstone (Early Ordovician). Thirteen samples of core from the Georgina Basin are from the Middle Cambrian, and most of them from the "hot shale" of the Arthur Creek Formation. Results indicate that samples from both the Amadeus and Georgina basins have high potential for gas shale.

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Record, petroleum exploration, sedimentary basins
Organization: Geoscience Australia Data
Amadeus Basin Biozonation and Stratigraphy Chart No. 6

Biostratigraphy is the branch of stratigraphy that uses fossils to establish relative ages of rock and correlate successions of sedimentary rocks within and between depositional basins. A biozone is an interval of geologic strata characterised by certain fossil taxa. Such intervals are often defined by the first appearances (range bases), apparent extinctions (range tops/last appearances), or abundances of fossil index species. These key index species should be relatively abundant, short-lived taxa that are easy to recognise and as geographically widespread as possible. Widely used fossil groups include brachiopods, conodonts, dinoflagellate cysts, foraminifera, graptolites, nannofossil, spores and pollen and trilobites. Zonal schemes based on several different fossil groups can be used in parallel, and the zones can be calibrated to the absolute geological timescale using tie points to rocks which have been radio-isotopically dated.

Tags: AU-NT, Chart, Earth Sciences, GA Publication, Published_External, stratigraphy
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Inverell (sh56-05)

AUSGeoid98 data files contain a 2 minute grid of AUSGeoid98 data covering the Australian region, which you can use to interpolate geoid-ellipsoid separations for the positions required.You can use your own interpolation software, or you can use Geoscience Australia's Windows Interpolation software (Winter). The data files are text files in a standard format that cover the same area as standard topographic map areas. Files covering both 1:250,000 (approximately 100 x 150 km) and 1:1,000,000 (approximately 400 x 600 km) map areas are available. There is a 4 minute overlap on all sides of each area. Data format: AUSGeoid98 data files have a header record at the start of each file, to distinguish them from the superseded AUSGeoid93 data files. AUSGeoid98 data files show the geoid-ellipsoid separation to 3 decimal places, while the superseded AUSGeoid93 data files showed only 2 decimal places. AUSGeoid98 deflections of the vertical were computed from the geoid-ellipsoid separation surface, while the AUSGeoid93 deflections of the vertical were computed from OSU91A.

Tags: AU, AUSGeoid98, Geodesy, Geodetic Data, Published_External, dataset, geodesy
Organization: Geoscience Australia Data
Goulburn Infill Gravity (P199705), gravity point data

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
 This Goulburn Infill Gravity (P199705) contains a total of 969 point data values acquired at a spacing between 2000 and 4000 metres. The data is located in NSW and were acquired in 1997, under project No. 199705 for Australian Geological Survey Organisation (AGSO); Geological Survey of New South Wales (GSNSW).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199705
Organization: Geoscience Australia Data
Gunnawarra 1:50 000 topographic map

Product Specifications Coverage: Partial coverage, predominantly in northern Australia, along major transport routes, and other selected areas. About 1000 maps have been published to date. Currency: Ranges from 1968 to 2006. Coordinates: Geographical and UTM. Datum: AGD66, new edition WGS84; AHD. Projection: Universal Transverse Mercator UTM. Medium: Paper, flat copies only.

Tags: 50K scale, AU-QLD, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Sandy Cape 1:250 000, R502 historical topographic map

The R502 series of maps has been replaced by the National Topographic Map Series (NTMS). The R502 series consists of 542 map sheets and covers Australia at a scale of 1:250,000. It was compiled from aerial photography, but only about one quarter of the series was contoured. The standard sheet size is 1 degree of latitude by 1.5 degrees of longitude. Transverse Mercator map projection and Clark 1858 datum were used. Coverage of the country was completed in 1968.

Tags: 250K scale, AU_QLD, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Amadeus Central, NT, 2000 (P1011), magnetic line data, AWAGS levelled

Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
 These line dataset from the Amadeus Central, NT, 2000 survey were acquired in 2000 by the NT Government, and consisted of 84668 line-kilometres of data at 400m line spacing and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

Tags: AWAGS, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NT, Published_External, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 1011, vector
Organization: Geoscience Australia Data
Ooldea-Nullarbor, SA, 2005 (P1101), radiometric line data, AWAGS levelled

The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
 This Ooldea-Nullarbor, SA, 2005 (P1101), radiometric line data, AWAGS levelled were acquired in 2005 by the SA Government, and consisted of 36025 line-kilometres of data at 400m line spacing and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

Tags: AWAGS, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, Published_External, SA, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 1101, thorium, uranium, vector
Organization: Geoscience Australia Data
Geophysical surveys at Mt Morgan, Queensland - 1st progress report

Geophysical surveys were carried out at Mt. Morgan during October-December, 1948, and during May-September, 1949. The surveys were made at the request of Mt. Morgan Mines, Ltd., the purpose being to aid the search for copper-gold ore bodies in the Mt. Morgan district. The geophysical operations were planned with the aid of geological advice from H. Connolly, Consultant Geologist to the Company. Mr. Connolly planned and commenced a diamond drilling campaign in the search for new orebodies and was looking to geophysics for assistance in the selection of additional drilling targets. The nature of the problem and the geophysical operations are outlined in this report.

Tags: AU-QLD, GA Publication, Geophysics, Published_External, Record, geophysics, ore
Organization: Geoscience Australia Data
GSNSW Exploration NSW Area F Brewarrina elevation grid geodetic

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This GSNSW Exploration NSW Area F Brewarrina elevation grid geodetic is elevation data for the NSW DMR, Discovery 2000, 1994-95, AREA F, Brewarrina. This survey was acquired under the project No. 736 for the geological survey of NSW. The grid has a cell size of 0.0012 degrees (approximately 125m).  This grid contains the ground elevation relative to the geoid for the NSW DMR, Discovery 2000, 1994-95, AREA F, Brewarrina. It represents the vertical distance from a location on the Earth's surface to the geoid. The data are given in units of meters. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.

Tags: Australia, DEM, EARTH SCIENCES, Earth sciences, Elevation, GADDS2.0, NCI, NSW, Published_External, digital data, geoid, geophysical survey, geophysics, grid, raster, survey 736, terrain
Organization: Geoscience Australia Data
A provisional isogonic map of Australia and New Guinea for the epoch 1950.5

A provisional Isogonic Map of Australia and New Guinea for the epoch 1950.5 has been prepared by revising the observational material used in the Isogonic Map for 1942.5, and including observations made at various parts of Australia since 1942. The extensions of the Isogonic Lines beyond the coast line of Australia depend almost entirely on extrapolation from the earlier work.

Tags: AU, GA Publication, Geology, PG, Published_External, Record, magnetics, mapping
Organization: Geoscience Australia Data
Basin Inventory Carpentaria Basin

The Carpentaria Basin is a Mesozoic basin located in the northernmost part of Australia and is centered around the Gulf of Carpentaria . It forms part of the Great Australian Superbasin that includes the Eromanga, Surat, Nambour and Clarence-Morton basins to the south, the Laura Basin, to the east, and the Papuan Basin to the north. In a west-east direction it extends for about 1250 km from the area of Katherine in the Northern Territory to the Great Dividing Range in Queensland. A small portion of the basin reaches the east coast of Queensland in the Olive River region. In a north-south direction it extends for over 1000 km from Cape York to Cloncurry, in Queensland. The basin has a total area of over 750,000 km2, comparable in size to the state of New South Wales. From a geographic standpoint the sediments of the Carpentaria Basin occur in three areas: offshore below the Gulf of Carpentaria, onshore to the west in the Northern Territory, and onshore to the east in Queensland. This report focuses on the geology and energy resource potential of the onshore areas of the basin but, to provide a broader understanding of the basin evolution there is, of necessity, some discussion of the geology offshore.


Tags: Australia's Future Energy Resources, Australia’s Future Energy Resources, Carpentaria Basin, EFTF – Exploring for the Future, Geology, Onshore Energy Systems, Petroleum, Published_External, Resource geoscience, energy, resource exploration, vanadium
Organization: Geoscience Australia Data
Gravity Survey (P198450), gravity point data

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
 This Gravity Survey (P198450) contains a total of 220 point data values acquired at a spacing of 250 metres. The data is located in SA and were acquired in 1984, under project No. 198450 for None.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 198450
Organization: Geoscience Australia Data