AndreaBozzo/ceres-open-data-index huggingface dataset:
AUSGeoid98 v.1.0 data files:  (se49-04)

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 Data format: AUSGeoid98 data files have a header record at the start of each file, to distinguish them from the superseded AUSGeoid93 data files. AUSGeoid98 data files show the geoid-ellipsoid separation to 3 decimal places, while the superseded AUSGeoid93 data files showed only 2 decimal places.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
Yellow Dam 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
Coffs Harbour 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 Unpublished maps are available as compilations.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
De Lancourt River 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
L058 Alice Springs seismic refraction survey, NT, 1962

This Record describes a seismic refraction survey made during 1961 in the Farm Area, Alice Springs, NT. Good refraction breaks were obtained only along the east-west Traverse K; the refraction breaks along the north-south traverses were very poor. Velocities indicated in the overburden are interpreted in terms of particular geological formations within the Mesozoic and Recent sediments. Results along additional east-west traverses would be needed before a similar interpretation could be applied to the bedrock velocities.

Tags: AU-NT, HVC_144637, Published_External, Seismic Data seismic survey, Seismology and Seismic Exploration, geophysics, petroleum exploration, seismic refraction, seismic velocity
Organization: Geoscience Australia Data
Carnarvon Basin South, WA, 2011 (P1235), 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 Carnarvon Basin South, WA, 2011 survey were acquired in 2012 by the WA Government, and consisted of 124028 line-kilometres of data at 400m line spacing and 60m 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, Published_External, WA, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 1235, vector
Organization: Geoscience Australia Data
Multi-component kinetics and late gas potential of selective Cooper Basin source rocks

Twenty-seven whole rock samples and eleven extracted samples or kerogen concentrates from five
potential Permian sources within the Cooper Basin, Australia were provided for petroleum generation
characterisation (eleven samples) and PhaseKinetic characterisation (six samples) following the
approach of di Primio and Horsfield (2006). Organofacies Type definition was performed for twentyseven
samples and characterisation of free hydrocarbons for 15 samples. The evolution of late gas
potentials as a function of organofacies and maturity were determined for fifteen samples following
the approach of Mahlstedt (2012), as well as kinetic parameters of primary and secondary gas
formation (one sample) using a modified GORFit - model (Mahlstedt et al., 2013). Thermal maturity of
Patchawarra Fm. samples is broad (0.5  5.5% VR) offering an insight into differences of gas potential.

Tags: Earth Sciences, GA Publication, Published_External, QLD, SA
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (sj52)

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
Geology of the Normanton

These data are a digital representation of information depicted on the printed map of the Normanton 1:250 000 Geological Series produced by AGSO and the Geological Survey of Queensland (GSQ) in 1972 (1st edition).
Data present include geological polygons (litho-stratigraphic units), linear structural features (faults, dykes, folds, trends, lineaments etc), and point features (mines, structural points etc). Polygons have a range of attributes extracted from each individual map including unit name, age and lithological description, while lines and points are feature coded according to the AGSO publication 'Symbols Used On Geological Maps' (BMR 1989). A standard look-up table of AGSO geological codes and associated descriptions is available (see ADDITIONAL METADATA).
The data has gradually evolved from elementary CAD quality data into its present topologically structured GIS format, and hence has many imperfections and inconsistencies. Data has undergone rigorous validation and testing that includes over 80 different tests. See ADDITIONAL METADATA for more information on the data standards used.

Tags: 250K scale, AU-QLD, Earth Sciences, GIS, GIS Dataset, Published_External, dataset, geology
Organization: Geoscience Australia Data
Towns River 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
Geochemistry, origin, and tectonic setting of granitic rocks of the Prince Charles Mountains, Antarctica

Granitic rocks in different terranes and of different ages in the Prince Charles Mountains (PCM) show systematic compositional differences.  Archaean granitic basement rocks of the southern PCM have compositions unlike those of typical Archaean tonalite- tronhjemite-granodiorite (TTG) terranes and consist mainly of within-plate types, which probably post-date crust formation and early metamorphic events. Unusually HFSE-rich (Zr, Nb, and Y) hornblende-biotite granite gneiss with A-type (anorogenic) affinities was probably derived by fractionation of mafic magma, but other granites represent intracrustal melts. Orthopyroxene-bearing tonalitic to granitic orthogneiss of the c. 1000 Ma high-grade terrane in the northern PCM and adjacent areas includes a large proportion of Y-depleted, Sr-undepleted volcanic arc granitoids, probably derived by melting of a plagioclase-poor mafic source (e.g. amphibolite or eclogite) in a Palaeo- or Mesoproterozoic Andean-type plate margin. Tonalite-granodiorite and mafic to felsic metavolcanic rocks at Fisher Massif also formed in an active continental margin, with an associated island arc, about 1300 million years ago. Most c. 1000 Ma granitoids also have volcanic arc characteristics, but there are significant syn-collision and within-plate types, indicating a polygenetic origin in a high-grade terrane formed at a convergent plate margin. Syn to late-metamorphic orthopyroxene granitoids (charnockites) include HFSE-rich quartz monzonitic varieties, which probably formed by fractionation of mantle-derived magma, and more siliceous granites, which represent high-temperature, predominantly intracrustal melts of dry granulite-facies orthogneiss. These granites are mainly Y-depleted, implying high-pressure melting with residual garnet in crust thickened by continental collision (between Archaean cratons in India and Antarctica) and heated by magmatic underplating. Major Cambrian plutons have A-type features, consistent with melting of dry granulite-facies rocks caused by mafic underplating. Emplacement near the present Lambert Glacier graben suggests an association with internal fracturing that preceded eventual break-up of Gondwana.

Tags: AAT, Earth Sciences, GA Publication, Journal, Published_External
Organization: Geoscience Australia Data
Hann River, Qld, 1991 (P570), 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 Hann River, Qld, 1991 (P570), radiometric line data, AWAGS levelled were acquired in 1991 by the QLD Government, and consisted of 55546 line-kilometres of data at 400m line spacing and 100m 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, QLD, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 570, thorium, uranium, vector
Organization: Geoscience Australia Data
Alexander 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
NSW-wide probabilistic tsunami inundation hazards from subduction earthquakes

Tsunamis are a low-frequency yet potentially high-consequence hazard, with impacts growing rapidly with the flow depth and inundation extent. For this reason, tsunami risk management often considers return periods from hundreds to thousands of years for which modelling uncertainties are substantial. Probabilistic Tsunami Hazard Assessment (PTHA) is a valuable framework for quantifying these hazards because modelling uncertainties can be integrated into the analysis by weighting alterative models. The last decade has seen major progress in “offshore” PTHA for earthquake generated tsunamis, with studies such as the 2018 Australian PTHA (PTHA18) providing deep-water models of hundreds-of-thousands of earthquake-tsunami scenarios and their uncertain occurrence rates. However, due to the computational expense of inundation models, it remains challenging to accurately translate offshore PTHAs into onshore tsunami hazards.
This study presents a novel solution to this challenge. Tsunami inundation hazards are computed throughout NSW by combining PTHA18 with a NSW-wide inundation model, assuming a conservative background sea-level. The inundation model simulates tsunamis from the earthquake source through to inundation, resolving the entire NSW coast at 1/54 arcminute resolution (about 30 m). It is tested against observations of nine historical tsunamis at NSW tide gauges, and the numerical convergence is tested against a 1/162 arcminute model for a large inundation scenario.
A novel Monte Carlo technique is developed to rigorously approximate the onshore tsunami hazards implied by PTHA18. The approach is computationally tractable because inundation simulations are only required for a random sample of PTHA18 scenarios. Multiple importance sampling allows focusing on scenarios that are hazardous in NSW, greatly increasing the accuracy without introducing bias. Consistent inundation hazard results are obtained from three separate Monte Carlo samples, using 370 random scenarios each, demonstrating the precision of the approach. The final results combine all three solutions, and demonstrate the feasibility of large-scale onshore PTHA.
Presented at the 2025 Australasian Coasts &amp; Ports Conference

Tags: Monte Carlo methods, Other earth sciences not elsewhere classified, Published_External, hazard assessment, statistics, tsunami
Organization: Geoscience Australia Data
Sydney Isogal Ties (P199292), 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 Sydney Isogal Ties (P199292) contains a total of 1 point data values acquired at a spacing of None metres. The data is located in NSW and were acquired in 1992, under project No. 199292 for Bureau of Mineral Resources (BMR).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199292
Organization: Geoscience Australia Data
AGSO Research Newsletter 28

Titles in this newsletter:
A newly discovered major Proterozoic granite-alteration system in the Mount Webb region, central Australia, and implications for Cu-Au mineralisation
A Mesoproterozoic palaeomagnetic age for the gold-bearing Quamby Conglomerate, Queensland
A comparison of Ordovician and Devonian magmatism in the eastern Lachlan Fold Belt: re-evaluating exploration targets
AGSO's new confocal laser Raman microprobe
Problems with the Cretaceous biostratigraphic system of Australia: time for a review
Gamma-ray spectrometric data: modelling to map primary lithology and later chemical mobilisation
Using images in a geological interpretation of magnetic data
Average composition of the crust in the Australian, Fennoscandian and Ukrainian shields from refraction seismic studies and petrophysical modelling
Shrimp U-Pb dating of ignimbrites in the Pul Pul Rhyolite, Northern Territory: A cautionary tale
New Nd-isotopic and geochemical data from the west Pilbara: Implications for Archaean crustal accretion and shear zone movement
Basement studies in basin analysis: new insights into the evolution of the Lawn Hill Platform

Tags: Earth Sciences, GA Publication, Published_External, Research Newsletter
Organization: Geoscience Australia Data
Bullita 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
GSQ Isa Georgetown Block C Qld magnetic vd1 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 GSQ Isa Georgetown Block C Qld magnetic vd1 grid geodetic is a first vertical derivative of the Total Magnetic Intensity grid for the Isa-Georgetown Block C,QLD, 2000, Prospectivity Plus Initiative.
This grid has a cell size of 0.00096 degrees (approximately 103m). The grid has units of nanoTesla per km (or nT/km). The data used to produce the TMI grid was acquired in 2000 by the QLD Government, and consisted of 45601 line-kilometres of data at a line spacing between 200m and 400m, and 80m terrain clearance. A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid.

Tags: 1vd, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, QLD, airborne digital data, first vertical derivative, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 828
Organization: Geoscience Australia Data
Curlew Island 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
Probabilistic Volcanic Ash Hazard Analysis (PVAHA)II: Asia-Pacific case-study of application at the regional level

Volcanic ash presents a natural hazard with a global reach, as ash can be transported up to thousands of kilometers from a given volcanic eruption to cross national boundaries and impact vulnerable environmental and societal elements. Given the widespread nature of ash hazard and increasing levels of globalisation, an understanding of the likelihood of hazard on progressively wider scales is important for long-term strategic planning. Here we present results from a regional-scale assessment of ash hazard in the Asia-Pacific determined using a new method developed at Geoscience Australia. 
The Probabilistic Volcanic Ash Hazard Analysis (PVAHA) technique was used to approximate volcanic tephra hazard for 276 volcanoes in the Asia-Pacific (those meeting certain selection criteria). The synthetic catalogue of events in PVAHA includes tephra-load decay relationships to account for uncertainty in the eruption parameters e.g. eruption magnitude, column height, duration, tephra dispersal parameters, and wind velocity. The ash-load (kg/m2) for each site (on a 5 degree grid) at ground level was simulated for each synthetic event in the catalogue when paired with the magnitude-frequency relationships for the region. A total of 178935 sites were calculated, covering a region of approximately 4,600,000 km2, allowing a quick assessment of the relative ash hazard for countries within the study area. 
This Asia-Pacific case study demonstrates the applicability of the PVAHA approach to modelling uncertainty for volcanic ash hazard on regional scales. This regional-scale assessment should not be used as an alternative to tested and accepted methods of undertaking local scale hazard modelling (e.g. dispersal modelling) or for local scale decision-making; rather, it should be employed as a tool to rapidly assess the relative hazard in a regional to global sense enabling determination of at-risk areas which would benefit from more detailed hazard and risk analysis at the local scale.

Tags: Abstract, Earth Sciences, External Publication, Published_External
Organization: Geoscience Australia Data