AndreaBozzo/ceres-open-data-index huggingface dataset:
Hickman Crater, WA, 2011 (P1233), 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 Hickman Crater, WA, 2011 (P1233), radiometric line data, AWAGS levelled were acquired in 2012 by the WA Government, and consisted of 134742 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, NASVD, Published_External, WA, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 1233, thorium, uranium, vector
Organization: Geoscience Australia Data
Delamere, NT, 2015 (P1274), elevation line data

The Digital Elevation Model represents ground surface topography between points of known elevation. The elevation data was calculated using the altimeters and Global Positioning System (GPS) sensor used for the benefit of airborne magnetic and radiometric data on the same survey. The elevation is the height relative to the Australian Height Datum GDA94 (AUSGEOID09). The processed elevation 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 NTGS Delamere and Spirit Hills, NT, 2015 survey were acquired in 2015 by the NT Government, and consisted of 96790 line-kilometres of data at 400m line spacing and 80m terrain clearance.

Tags: Australia, DEM, EARTH SCIENCES, Earth sciences, Elevation, GADDS2.0, NT, Published_External, airborne digital data, geophysical survey, geophysics, line, survey 1274, terrain, vector
Organization: Geoscience Australia Data
Palaeogeographic maps of the northern margins of the Australian plate - Initial report

A set of 21 palaeogeographic maps are presented to show the plate positions, tectonics and lithofacies for the northern margins of the Australian plate from the Early Permian onwards. The maps extend into Eastern Indonesia, East Timor and Papua New Guinea, in order to show the relationships between the Australian marginal basins and the orogen to the north.

Tags: Earth Sciences, GA Publication, Published_External, Report, WA
Organization: Geoscience Australia Data
P201631 Stavely Gravity Traverses GDA94HTM

Digital Elevation data record the terrain height variations from the processed point-located data recorded during a geophysical survey. This P201631 Stavely Gravity Traverses GDA94HTM is elevation data for the Stavely Gravity Traverses, 2016 (P201631). This survey was acquired under the project No. 201631 for the geological survey of VIC. The grid has a cell size of 0.0005 degrees (approximately 50m).  This grid contains the ground elevation relative to the ellipsoid for the Stavely Gravity Traverses, 2016 (P201631). It represents the vertical distance from a location on the Earth's surface to the ellipsoid. 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, Published_External, VIC, digital data, ellipsoid, geophysical survey, geophysics, grid, raster, survey 201631, terrain
Organization: Geoscience Australia Data
Dajarra 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
Sedimentology of the Neoproterozoic Acraman impact-ejecta horizon, South Australia

The Acraman ejecta horizon is a thin (0-40 cm ) sand/breccia unit consisting almost entirely of angular volcanic fragments. The horizon occurs within Neoproterozoic (~590 Ma) deep-water (below storm-wave-base) shales of the Adelaide Geosyncline (Bunyeroo Formation) and Officer Basin (Rodda beds). Much evidence points to the derivation of the horizon from Australias largest meteorite impact feature, the Acraman structure, in the Gawler Ranges. The ejecta horizon contains anomalous quantities of Ir, Au, Pt, Pd, Ru, and Cr, consistent with a meteoritic source for the horizon. Other evidence for an impact-related origin is the presence of shattered mineral grains, multiple sets of planar shock lamellae within quartz phenocrysts, the occurrence of small shatter cones on clasts, and the presence of altered melt particles.  Two major sedimentological styles of ejecta occur in the Adelaide Geosyncline: type 1 ejecta sequences are characterised by a distinctive lonestone/breccia-sandy mudstone-graded-sandstone sequence whose clasts are almost perfectly sorted and normally graded; and type 2 sequences are characterised by weak normal grading, poor sorting, and common cross-lamination. Type 1 ejecta sequences are widespread in the central and eastern portions of the Adelaide Geosyncline, while type 2 sequences are more common in the western part of the Geosyncline.  In the Officer Basin, the ejecta horizon consists of thin (0-0.7 cm) layers of sand-size angular volcanic clasts. We interpret type 1 sequences as primary fallout deposits whose perfect sorting and normal grading reflects suspension settling; and type 2 sequences as ejecta that have been completely reworked by impact-induced tsunamis.  When treated as a single sediment sample, the grain size distribution in the type 1 ejecta sequences displays two quite distinct populations: the basal breccia forms a very poorly sorted population; and the graded sand constitutes a moderately well sorted population.  These two grainsize populations might represent different transport modes: the breccia by fireball processes or ejecta flows, and the sand by atmospheric processes such as impact-induced air-blasts.

Tags: Earth Sciences, GA Publication, Journal, Published_External, SA
Organization: Geoscience Australia Data
Mount Drummond 1:100 000 digital geology, part of Mount Isa geological digital data set

This digital data package comprises all available 1:100 000 scale first edition and unpublished preliminary geological maps of the Mount Isa Inlier, Murphy Tectonic Ridge, South Nicholson Basin and southern McArthur Basin. It also includes parts of the Mount Drummond and Lawn Hill 1:250 000 sheets which have not been mapped at 1:100 000 scale.  The complete data set covers 19 full, 5 combined and 4 part 100,000 scale map sheets. All faults within this area have been coded uniquely to facilitate metallogenic analysis. The data, currently version 2.1, can be downloaded and comprises either MapInfo or Arcinfo/Arcview formats.  For Arcview, unique legends have been created for the geology layers of each individual dataset, uniform across the whole of the Mount Isa dataset.

Tags: 100K scale, AU-NT, Earth Sciences, GIS Dataset, Published_External, geology
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Cundeelee (sh51-11)

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
Mk II Airborne Laser Fluorosensor Survey Reprocessing and Interpretation Report: Bonaparte Basin, Timor Sea, Australia

The Bonaparte Basin airborne laser fluorosensor (ALF) MkII survey was flown in 1989 by BP over the northern Petrel Sub-basin, Darwin Shelf and Malita Graben. The survey was designed to detect natural oil seepage over a region of the Bonaparte Basin, Australia, in an effort to refine the petroleum prospectivity assessment.
The survey was acquired in two separate parts. The larger southwest part extends up to 230km east to west and up to 240km north to south. The northwest part extends about 120km east to west and an average of 100km north to south. A total of 872,412 fluorosensor spectra were recorded.
This report presents a re-interpretation of the BP data by Signalworks Pty Ltd using the ALF Explorer software. A total of 1,689 fluors were picked out of the 872,412 recorded spectra in the final interpretation. This is an average fluor density of 1.94 fluors per thousand spectra.
The fluorescence response over most of the survey area consisted mainly of relatively low confidence fluors (compared to the more reliable MkIII ALF survey data).
Some of the regions of increased fluor density correspond to regions having generally higher F/R values, probably caused by changing water properties. These areas may not necessarily have increased levels of hydrocarbon leakage.

Tags: Earth Sciences, GA Publication, Published_External, Record, remote sensing
Organization: Geoscience Australia Data
Satellite Radar Interferometry: Application to Rabaul Caldera, Papua New Guinea

Interferometric synthetic aperture radar (InSAR) is a geodetic monitoring tool used to measure ground deformations at cm-scale precision. InSAR has been used to study many geophysical phenomena, including volcanoes and earthquakes. This technique has yet to be applied widely in Papua New Guinea, despite its potential as a hazard monitoring tool for the numerous volcanoes in the region. This study applies InSAR to the Rabaul caldera, to investigate the feasibility of the technique in the region. This location was chosen so that the results of this study can be compared to ground based measurements provided by the Rabaul Volcano Observatory.
Of the 10 radar images acquired for this study, 7 were successfully processed to form interferograms. These interferograms were then stacked together to form a time series of deformations, spanning a 14 month period from 27-2-2007 to 16-4-2008. Most of these interferograms had high coherence, and relatively low noise, and cm-scale deformations evident in the deformation time series. These results suggest that this technique is capable of detecting precursory uplift before an eruption. The primary limitations to the analysis were the availability of radar data, and the baseline separation between acquisitions. We were unable to apply temporal filtering to remove atmospheric noise, since there were too few points in the time series.

Tags: Earth Sciences, GA Publication, PG, Published_External, Record, geodesy, remote sensing, volcanology
Organization: Geoscience Australia Data
Brunette 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-NT, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Australian Stratigraphic Units Database Portal

The Australian Stratigraphic Units Database (ASUD) is the national authority on stratigraphic names in Australia. It originated as the National Register of Stratigraphic Names in 1949. The register was originally set up to help geoscientists adhere to the then newly created Australian Code of Stratigraphic Nomenclature (Lenz, et al, 1996). All information was held in a card file system until 1979 when the database was first developed electronically. The database now records information on all Australian stratigraphic units and their usage in published literature.  
The database contains about 17500 currently approved stratigraphic names and over 36000 variations, most of which are superseded, obsolete, or misspelt versions of the current names. This information is based on over 16000 published references. 
The database is maintained by Geoscience Australia on behalf of the Australian Stratigraphy Commission, a standing committee of the Geological Society of Australia.  
Procedures can be queried at: http://www.ga.gov.au/data-pubs/datastandards/stratigraphic-units?
Data can be queried and downloaded at the ASUD website at: https://asud.ga.gov.au/
Email contact: stratnames@ga.gov.au

Tags: AU-EEZ, Application, DC2020, Earth Sciences, HVC_144619, National dataset, Published_External, geology, geoscience databases, stratigraphy
Organization: Geoscience Australia Data
Wirrega - SADM Road Gravity (P195572), 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 Wirrega - SADM Road Gravity (P195572) contains a total of 19 point data values acquired at a spacing of 1000 metres. The data is located in SA and were acquired in 1955, under project No. 195572 for Department of Mines and Energy South Australia (SADME).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 195572
Organization: Geoscience Australia Data
Coober Pedy - TMI RTP 1VD grid (AWAGS)

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 Coober Pedy - TMI RTP 1VD grid (AWAGS) is the first vertical derivative of the TMI RTP grid of the Coober Pedy West Airborne Magnetic Radiometric and DEM Survey, SA, 2017 survey.
This grid has a cell size of 0.0004 degrees (approximately 42m) , and given in units of nT per metre (nT/m).  The data used to produce the TMI grid was acquired in 2017 by the SA Government, and consisted of 90697 line-kilometres of data at 200m line spacing and 60m terrain clearance. The data has had a variable reduction to the pole applied to centre the magnetic anomaly over the magnetised body. The VRTP processing followed a differential reduction to pole calculation up to 5th order polynomial. Magnetic inclination and declination were derived from the IGRF-11 geomagnetic reference model using a data representative date and elevation representative of the survey. A first vertical derivative was calculated by applying a fast Fourier transform (FFT) process to the TMI RTP grid of the Coober Pedy West Airborne Magnetic Radiometric and DEM Survey, SA, 2017 survey to produce this grid. This grid was calculated using an algorithm from the INTREPID Geophysics software package. This grid shows the magnetic response of subsurface features with contrasting magnetic susceptibilities. The grid can also be used to locate structural features such as dykes.

Tags: 1VD, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, RTP, SA, TMI, airborne digital data, first vertical derivative, geophysical survey, geophysics, greyscale, grid, image, mag, magnetics, magnetism, palaeomagnetism, reduced to the pole, survey 1299, total magnetic intensity
Organization: Geoscience Australia Data
Buchanan NE, NT, 2002 (P1023), 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 Buchanan NE, NT, 2002 (P1023), radiometric line data, AWAGS levelled were acquired in 2002 by the NT Government, and consisted of 175073 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, NT, Published_External, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 1023, thorium, uranium, vector
Organization: Geoscience Australia Data
Grant's Patch Centaur Mining Data (P200060), 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 Grant's Patch Centaur Mining Data (P200060) contains a total of 7230 point data values acquired at a spacing between 50 and 200 metres. The data is located in WA and were acquired in 2000, under project No. 200060 for Centaur Mining and Exploration 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 200060
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Bauhinia Downs (se53-03)

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
Crustal structure of the Ordovician Macquarie Arc, eastern Lachlan Orogen, based on seismic reflection profiling

In the Eastern Lachlan Orogen, the mineralised Molong and Junee-Narromine Volcanic Belts are two structural belts that once formed part of the Ordovician Macquarie Arc, but are now separated by younger Silurian-Devonian strata as well as by Ordovician quartz-rich turbidites. Interpretation of deep seismic reflection and refraction data across and along these belts provides answers to some of the key questions in understanding the evolution of the Eastern Lachlan Orogen-the relationship between coeval Ordovician volcanics and quartz-rich turbidites, and the relationship between separate belts of Ordovician volcanics and the intervening strata. In particular, the data provide evidence for major thrust juxtaposition of the arc rocks and Ordovician quartz-rich turbidites, with Wagga Belt rocks thrust eastward over the arc rocks of the Junee-Narromine Volcanic Belt, and the Adaminaby Group thrust north over arc rocks in the southern part of the Molong Volcanic Belt. The seismic data also provide evidence for regional contraction, especially for crustal-scale deformation in the western part of the Junee-Narromine Volcanic Belt. The data further suggest that this belt and the Ordovician quartz-rich turbidites to the east (Kirribilli Formation) were together thrust over Cambrian-Ordovician rocks of the Jindalee Group and associated rocks along west-dipping inferred faults that belong to a set that characterises the middle crust of the Eastern Lachlan Orogen. The Macquarie Arc was subsequently rifted apart in the Silurian-Devonian, with Ordovician volcanics preserved under the younger troughs and shelves (e.g. Hill End Trough). The Molong Volcanic Belt, in particular, was reworked by major down-to-the-east normal faults that were thrust-reactivated with younger-on-older geometries in the late Early - Middle Devonian and again in the Carboniferous.

Tags: AU-NSW, AU-VIC, Earth Sciences, External Publication, Published_External, Scientific Journal Paper
Organization: Geoscience Australia Data
Elliston, Kimba Region Gravity (P196762), 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 Elliston, Kimba Region Gravity (P196762) contains a total of 372 point data values acquired at a spacing between 2000 and 8000 metres. The data is located in SA and were acquired in 1967, under project No. 196762 for Department of Mines and Energy South Australia (SADME).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 196762
Organization: Geoscience Australia Data