AndreaBozzo/ceres-open-data-index huggingface dataset:
Geology and hydrocarbon prospectivity of the northern Houtman Sub-basin – Extended Abstract 2017 APPEA Conference

New 2D seismic data, acquired by Geoscience Australia in the northern Houtman Sub-basin of the Perth Basin, provides important information on the prospectivity of this frontier area. To date, lack of quality seismic data and limited geological understanding led to the perception that the hydrocarbon potential of the area is very low. However, interpretation of the newly collected data suggests that the northern Houtman depocentre contains up to 15 km of pre-breakup sediments composed of Permian, Triassic and Jurassic successions, which potentially contain multiple source rock, reservoir and seal intervals. The Permian synrift succession is confined to a series of large half-graben that are controlled by basement-involved faults separating the Houtman depocentre from the Bernier Platform. This succession is up to 10 km thick and is mapped throughout the inboard part of the new seismic grid. A prominent unconformity at the top of the Permian synrift sequence is overlain by a thick (up to 1800 m) and regionally extensive Kockatea Shale sequence, which has been tied to the regional interpretation of the basin. The thickness of the overlying Triassic succession ranges from about 1 km in the inboard part of the basin to up to 5 km further outboard. The Jurassic succession is thickest (up to 4 km) in the outboard part of the basin and is interpreted to contain sequences corresponding to the Cattamarra, Cadda and Yarragadee formations. Our study integrates new results from regional mapping, geophysical modelling and petroleum systems analysis, which enables a more accurate prospectivity assessment of this frontier basin.

Tags: Earth Sciences, Houtman Sub-basin, Published_External, petroleum prospectivity
Organization: Geoscience Australia Data
Tanami EW 5N - ground elevation geoid grid (radar)

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This Tanami EW 5N - ground elevation geoid grid (radar) is elevation data for the NTGS Tanami EW 5N Region Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018. This survey was acquired under the project No. 1312 for the geological survey of NT. The grid has a cell size of 0.00018 degrees (approximately 20m).  This grid contains the ground elevation relative to the geoid for the NTGS Tanami EW 5N Region Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018. 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, NT, Published_External, digital data, geoid, geophysical survey, geophysics, grid, raster, survey 1312, terrain
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (sd52-02)

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
Mount Heytesbury 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-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Millungera 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-QLD, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Western Creek 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-NT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
NTGS North Wiso Gravity P201580 Spherical Cap Bouguer Anomaly 267GU

Gravity data measure 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 NTGS North Wiso Gravity P201580 Spherical Cap Bouguer Anomaly 267GU is a complete Bouguer anomaly grid for the NTGS Northern Wiso Basin Gravity Survey (P201580) survey. This gravity survey was acquired under the project No. 201580 for the geological survey of NT. The grid has a cell size of 0.00738 degrees (approximately 800m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 4990 gravity stations were acquired to produce this grid.

Tags: Australia, Bouguer, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NT, Published_External, geophysical survey, geophysics, grav, gravity, grid, ground digital data, raster, spherical cap, survey 201580
Organization: Geoscience Australia Data
Deaggregation of NBCC 2015 seismic hazard for selected Canadian cities

The Geological Survey of Canada's 5th Generation seismic hazard model for Canada forms the basis for the seismic design provisions of the 2015 National Building Code of Canada (NBCC). We deaggregate the seismic hazard results for selected cities to help understand the relative contributions of the earthquake sources in terms of distance and magnitude. Deaggregation for a range of probabilities and spectral accelerations (Sa) from 0.2 to 10.0 seconds is performed to examine in detail the hazard for two of Canada's largest urban centres at highest risk, Vancouver in the west and Montréal in the east. A summary table of deaggregated seismic hazard is provided for other selected Canadian cities, for Sa(0.2), Sa(2.0) and peak ground acceleration (PGA) at a probability of exceedence of 2%/50 years. In most cases, as the probability decreases, the hazard sources closer to the site dominate. Larger, more distant earthquakes contribute more significantly to hazard for longer periods than shorter periods. The deaggregations allow better-informed choices of scenario events and for the selection of representative time histories for engineering design.

Tags: EARTH SCIENCES, Montréal, Published_External, Vancouver, deaggregation, hazard, national building code
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Canberra (si55-16)

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
Gravity survey of the Perth Basin, Western Australia

During 1949 and 1951, whilst investigating possible underground water supplies, staff of the Bureau of Mineral Resources surveyed two east-west gravity traverses near Watheroo Observatory (120 miles north of Perth) and Bullsbrook (20 miles north-north-east of Perth).  Results of these investigations suggested the presence of a major fault a few miles to the east of both places and gave evidence of a large thickness of sediments underlying the coastal plains.  It was decided, therefore, to extend the gravity investigations to a reconnaissance survey of the whole of the coastal region between Geraldton in the north and Cape Leeuwin in the south, extending inland from the coast for distances of 100 to 150 miles.  This bulletin gives results of the survey, which was made in 1951 and 1952 over an area of about 43, 000 square miles and comprised gravity observations at 650 stations. The survey revealed a negative gravity anomaly of large magnitude and areal extent.  Bouguer anomaly values, with a minimum of more than 130 milligals, form a trough about 400 miles long and up to 55 miles wide. Steep gravity gradients on the flanks of the anomaly suggest the existence of faults which have resulted in relatively light sediments lying adjacent to denser basement rocks.  Such steep gradients indicate that the major part of the anomaly is due to an accumulation of sediments which at their maximum development may be about 30,000 feet thick. The Darling and Dunsborough Faults show up prominently on the gravity pattern, but other faults deduced from geological evidence are not apparent probably because the vertical movement on these faults has been too slight to have affected the gravity pattern.  On the other hand, the gravity results indicate the presence of other, faults previously undetected.  Two minor synclines are indicated, diverging from the main synclinal axis, and the importance of anticlinal axes associated with these synclines is stressed. The gravity pattern indicates that although the Perth Basin narrows to the north, between converging faults, it continues in that direction, to join the Carnarvon Basin. Recommendations are made for more detailed gravity surveys to be made in certain localities and for seismic surveys of selected traverses across the basin.

Tags: AU-WA, Bulletin, Earth Sciences, GA Publication, Published_External, gravity
Organization: Geoscience Australia Data
Geological insights of Northern Australia’s AusAEM airborne EM survey

Airborne electromagnetic data generated by the AusAEM Survey are shown to map mineral deposit host rocks and regional geological features within the AusAEM Survey area. We have developed new functionality in Geoscience Australia’s sample-by-sample layered earth inversion algorithm, allowing inversion of the magnitude of the combined vector sum of the X- and Z-components of TEMPEST AEM data.  This functionality improves the clarity of inverted interpretation products by reducing the degree of along-line incoherency inherent to stitched 1D inversions. The new inversion approach improves the interpretability of sub-horizontal conductors, allowing better mapping of geological features under cover.
Examples of geological mapping by the AusAEM survey highlight the utility of wide line spacing, regional AEM surveying to improve geological, mineral systems and groundwater resource understanding in the regions flanking outcropping mineral deposit host rocks in northern Australia.
Presented at the 2019 Australasian Exploration Geoscience Conference

Tags: AusAEM, EARTH SCIENCES, Electrical and Electromagnetic Methods in Geophysics, Exploring for the Future - EFTF, GEOPHYSICS, Published_External, TEMPEST®, airborne electromagnetic - AEM, geological mapping, inversion
Organization: Geoscience Australia Data
Ilfracombe 1:100 000 unpublished 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.

Tags: 100K unpublished, AU-QLD, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Tropical cyclone wind hazard simulation for Tonga

This dataset provides an assessment of the tropical cyclone wind hazard for the Kingdom of Tonga. The data was generated to provide a collection of scenarios for detailed impact mapping as part of the PacSAFE project (2016-2018), funded by the Australian Department of Foreign Affairs and Trade. The dataset includes a catalogue of synthetic tropical cyclone tracks and the corresponding maximum wind swaths, average recurrence interval (ARI) wind speeds for ARIs from 5 to 10,000 years, and hazard profiles for selected locations within the simulation domain.

Tags: Published_External, Tonga, Tropical cyclone, wind hazard
Organization: Geoscience Australia Data
No42 Well 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-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Skylab photography for geological mapping

Skylab spacecraft stereoscopic photography of the Alice Springs and Snowy Mountains regions of Australia was studied by conventional photogeological techniques to assess its usefulness in geological mapping. In the arid Alice Springs region, which has well exposed sedimentary rocks and relatively simple structures, broad rock units can be differentiated and correlated, and rock trends, joints and folds interpreted with the same accuracy as that shown on the 1:500 000 scale geological map of the region. The distribution of Cainozoic travertine and other surficial materials can be interpreted with sufficient reliability to allow updating of 1:250 000 scale geological maps. In the more humid Snowy Mountains region, where the geology-to-morphology relationships are complex and varied, little lithological information can be obtained: only Tertiary volcanic rocks and alluvium can be identified and outlined with confidence. The Skylab photographs proved more useful for structural interpretations: faults, lineaments and joint trends can be detected. Several circular structures can be related to features of igneous origin. Statistical analysis of linear features revealed a direct relationship between known structural trends and linear features annotated on low resolution Skylab photographs.

Tags: Earth Sciences, GA Publication, Journal, NSW, NT, Published_External, SA
Organization: Geoscience Australia Data
Fitzroy Crossing Gravity (P195833), 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 Fitzroy Crossing Gravity (P195833) contains a total of 818 point data values acquired at a spacing between 1000 and 12000 metres. The data is located in WA and were acquired in 1958, under project No. 195833 for West Australian Petroleum Pty Ltd.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 195833
Organization: Geoscience Australia Data
SE Queensland 1999 Gravity Survey (P199941), 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 SE Queensland 1999 Gravity Survey (P199941) contains a total of 2077 point data values acquired at a spacing between 2000 and 4000 metres. The data is located in QLD and were acquired in 1999, under project No. 199941 for Geological Survey of Queensland (GSQ).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, QLD, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199941
Organization: Geoscience Australia Data
The Value of Earth Observations from Space to Australia

The Value of Earth Observations from Space to Australia report (2015, ACIL Allen Consulting) examines the use of Earth observations from space (EOS) in seven key application areas: weather forecasting; ocean observation; monitoring land use and landscape change; agriculture; water; natural hazards and insurance; and onshore mining. Through a series of detailed case studies, the report establishes the value of the contribution of EOS in each application area and to the Australian economy as a whole.

Tags: Economics, GA Publication, Published_External
Organization: Geoscience Australia Data
GSNSW Exploration NSW Area D Surat Basin magnetic grid geodetic

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.
This GSNSW Exploration NSW Area D Surat Basin magnetic grid geodetic has a cell size of 0.00072 degrees (approximately 75m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1995 by the NSW Government, and consisted of 117000 line-kilometres of data at 400m line spacing and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, TMI, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 734, total magnetic intensity
Organization: Geoscience Australia Data
Goulburn 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-NSW, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
GSWA Wolfe Creek Crater 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 0.0001 degrees (approximately 11m) and shows potassium element concentration of the Wolfe Creek Crater, WA, 2002 in units of percent (or %). The data used to produce this grid was acquired in 2002 by the WA Government, and consisted of 402 line-kilometres of data at 50m line spacing and 40m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NCI, Published_External, WA, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, spectrometry, survey 864
Organization: Geoscience Australia Data
Bremer and Denmark Sub-Basins bathymetry grids compilation

This is a recent compilation of all the processed multibeam bathymetric data that Geoscience Australia holds in its database for the Bremer and Denmark Sub-Basins. The location of the sub-basin lies in deep water off the southwest margin of WA between Broke and Esperance in Southern Western Australia.
This dataset is published with the permission of the CEO, Geoscience Australia.
Not to be used for navigational purposes.

Tags: AU-WA, AusSeabed, Bathymetric grids, Geoscience, HVC_144641, Marine, Marine Data, Marine Geoscience, Published_External
Organization: Geoscience Australia Data