AndreaBozzo/ceres-open-data-index huggingface dataset:
Probabilistic airborne electromagnetic inversion of 20 km AusAEM data, Phase 1

This airborne electromagnetic (AEM) dataset provides regional scale probabilistic inversion products from 141,000 line km of airborne electromagnetic (AEM) data from the AusAEM program. 

The two main benefits of a probabilistic inversion over a deterministic one are:
<ul>
<li>Loss of signal sensitivity at depth does not “fade to blue” by returning to the resistive deterministic reference model.</li>
<li>Ambiguous subsurface features become clearer when examining multiple probability percentiles.</li>
</ul>

Further details are provided in the accompanying technical note.

Conductivity products from the following surveys are available:
<ul>
<li>Frome 2011</li>
<li>AusAEM 1 NT (2017)</li>
<li>AusAEM 1 QLD (2017)</li>
<li>AusAEM 2 Tranche 1 part (2019)</li>
<li>AusAEM 3 Eastern Resources Corridor (all 3 phases)</li>
<li>AusAEM 3 Western Resources Corridor (Kimberley, Central, Musgraves and South)</li>
</ul>

The 10th, 50th and 90th and mean percentiles of log10 conductivity are provided in a variety of formats:
<ul>
<li>VTK structured grids</li>
<li>ASCII point clouds</li>
<li>ASEG-GDF2 files </li>
<li>GOCAD S-grids</li>
</ul>

All products have been provided in the coordinate reference system (CRS) the original AEM data were provided in. The VTK unstructured grids are also provided in GDA94 geodetic longitude, latitude coordinates for ease of display in the same CRS.

Tags: Australia’s Resources Framework, EFTF – Exploring for the Future, Electrical and Electromagnetic Methods in Geophysics, Published_External, Resourcing Australia’s Prosperity, airborne electromagnetics, geophysical inversion, probability
Organization: Geoscience Australia Data
L096 Gosses Bluff deep crustal seismic survey (Amadeus Basin), NT, 1969. Stacked seismic data and images for line BMR69-1A

Two radial traverses each about 16 miles along were surveyed through Gosses Bluff area of the Amadeus Basin, NT, using variously single coverage and 3-, 6- and 12- fold multiple coverage. This survey was part of a combined geological and geophysical investigation of the feature being undertaken jointly by the United States Geological Survey (USGS) and Bureau of Mineral Resources (BMR). The USGS, which undertakes astrogeological studies for the National Aeronautics and Space Administration (NASA), is studying the Gosses Bluff structure, and other similar structures throughout the world, mainly in order to contribute to a greater understanding of similar features on the surface of the Moon. The seismic survey was intended to define the various structural features of the Bluff more precisely than has been possible from previous investigation.

Tags: AU-NT, HVC_144637, Published_External, Seismic Data seismic survey, Seismology and Seismic Exploration, geophysics, mineral exploration, petroleum exploration, seismic reflection, seismic sections
Organization: Geoscience Australia Data
Preliminary report on diamond drilling at Ella Creek prospect, N.T. / J.D. Wyatt. Preliminary report on radiometric bore-logging and assaying, Ella Creek, Northern Territory / by I.A. Mumme

The Ella Creek Prospect was a first order anomaly discovered by the Bureau of Mineral Resources airborne scintillometer survey in 1952. After a detailed examination by geologists and geophysicists, accompanied by intensive costeaning it was considered promising enough to warrant drilling. The three holes drilled were probed radio-metrically and high counts ranging from 1,000 to 3,000 per minute were obtained. No primary uranium mineralisation was encountered, and it is suggested that the source of the radioactivity, on chemical testing, may prove to be thorium.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geology, geophysics, mineral exploration, radiometrics
Organization: Geoscience Australia Data
Radioactive investigations in the Broken Hill district.

In the search for deposits of radioactive minerals in Australia the area of the Barrier Ranges appears especially worthy of investigation on geological grounds because it is composed of highly mineralised pre-Cambrian rocks. Mines in this area comprise the major producing mines along the main Broken Hill lode, one developed mine of less importance (the Pinnacles), and a number of small silver, lead and copper mines scattered over the surrounding district. The present report deals with the results of a reconnaissance radio-active survey performed by the Geophysical Section of the Bureau during July and August, 1950. The work was confined to the smaller mines, attention being directed, in the first instance to the mines from which radio-active museum specimens were stated to have come. At each mine the following tests were performed: tests on dumps and residues to discover whether any quantity of stone carrying a significant content of radio-active minerals had been broken during mining operations, tests on accessible exposed faces, and tests on rocks surrounding the mines. The tests were made with portable Geiger-Mueller rate-meters. Readings taken are quoted as multiples of background count, which has been considered as a constant characteristic of the instruments, rather than as the general reading obtained on country rock in the area. In most areas these methods of defining background would lead to the same result. As mentioned later, however, in the Broken Hill area this is not the case. Generally, the schists and gneisses on this field are definitely radio-active, and a true background reading, indicative of the complete absence of radio-active minerals, is obtained only on basic rocks. A reconnaissance survey was also made over the Euriowie tin field. Tests were also made around felspar quarries at Egebeck.

Tags: AU-NSW, GA Publication, Geology, Published_External, Record, mineral deposits, rock properties
Organization: Geoscience Australia Data
Report on examination of specimens of mill products from mines at Broken Hill

In connection with the search for uranium in Australia samples of mill products from producing mines have been examined for radioactivity by the Bureau. Amongst these were several samples from mines at Broken Hill. A preliminary examination showed that the uranium content of the samples was certainly much less than 0.01 per cent. To obtain more accurate data, the samples were re-examined by more sensitive methods, and the results of these are tabulated below.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, petrology, radiometrics, rock properties, uranium
Organization: Geoscience Australia Data
Inspection of radiometric anomalies "A.B.C." Reserve, Katherine, Northern Territory

A car-borne radio-metric survey of the B-volcanic formation within the reservation surrounding the A.B.C. uranium prospect indicated 32 small areas in which the radio-activity was a little in excess of 1.5 times, and in places a little higher than twice the background count of the alluvium in the valley. Testing of each area with an Austronic P.R.M. 200 failed to reveal any sources of higher radio-activity. Most of the anomalies are due to a comparatively high background count given by exposed basalt. Four anomalies found in black or dark soil in damp portions of the valley are considered to be due to traces of radio-active elements absorbed by humus. One anomaly appeared to be due to traces of radio-active material contained in "lateritized" alluvium. The other anomalies are in alluvium, and are due either to the presence of basalt a few inches from the surface, or to traces of radio-active matter deposited from seeping ground-water. Radio-metric contouring, with a view to possible costeaning, has been recommended in a small area within exposed basalt, where counts of approximately 200 per minute were obtained. No additional work is recommended on any of the other anomalies.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geophysics, prospectivity, radiometrics
Organization: Geoscience Australia Data
National Bushfire Extents - Accumulation

This spatial product shows accumulating snapshots of ‘near real-time’ bushfire and prescribed burn extents for all jurisdictions who have the technical ability or appropriate licence conditions to provide this information into the <em>National Near-Real-Time Bushfire Extents</em> product. This dataset can be accessed via the Digital Atlas of Australia: https://digital.atlas.gov.au/maps/64e4825780624e9abdd42e1d49afd27a

&nbsp;

<strong>This is a scientific product and should not be used for safety of life decisions. Please refer to jurisdictional emergency response agencies for incident warnings and information.</strong>



This product is funded until 30 June 2026.

Tags: Bushfire, Bushfire Boundaries, Bushfire Extents, Fires, National Bushfire Intelligence Capability, Natural Hazards, Time Series, Wildfires, burnt area
Organization: Geoscience Australia Data
Tectonic earthquakes and volcanic activity, Bougainville Island, TNG

In an unpublished report Taylor (1955) suggested that both tectonic earthquakes and volcanic activity are related to prevailing conditions of regional stress.  The diagnostic value of this relationship lies in the fact that abnormal stress conditions make their presence known first by tectonic earthquakes and later by volcanic eruption. This theory was developed as a result of intensive research following upon study of the new Hebrides volcanic arc and recent volcanism. Bougainville Island, with a deep trough (Planet Deep) situated west of and orientated parallel to its line of volcanoes, exhibits a similar structural pattern to the New Mebride4s Islands and it was considered by Taylor that the relationship between tectonic earthquakes and volcanic eruptions might also apply here. As a possible means of diagnosis an analysis of earthquakes and volcanic activity in the Bougainville area was undertaken to discover whether a positive relationship existed fro Mt. Bagana, and if so, whether there were indications of impending eruption of the Lake Loloru Crater.

Tags: Earth Sciences, GA Publication, Published_External, Record, earthquakes, volcanology
Organization: Geoscience Australia Data
Bonaparte Basin: Geochemical characteristics of hydrocarbon families and petroleum systems

The Bonaparte Basin has been actively explored for more than 20 years, with oil production from several fields (Jabiru, Challis-Cassini, Laminaria-Corallina, Eiang and the depleted Skua field) and proposed production from giant gas/ condensate fields (Bayu-Undan, Sunrise-Loxton Shoals-Troubadour and Petrel-Tern). Despite this focused exploration and appraisal, to date geoscientists have had a relatively poor understanding of the region's petroleum systems.

To improve this understanding, isotopic and biomarker analyses of numerous oils, condensates and gases have been undertaken to geochemically characterise the hydrocarbon families in the Bonaparte Basin, and to correlate them with likely source rocks. Preliminary results of this study show that two Palaeozoic and seven Mesozoic oil families can be identified in the Bonaparte Basin. Details of the petroleum systems active in this basin were presented at the recent AAPG International Conference in Bali (October 15-18, 2000) by Dianne Edwards and John Kennard, and continue to be investigated by AGSO's North-north-west Regional Project.

Tags: Bonaparte Basin, Earth Sciences, GA Publication, Published_External, Research Newsletter, Timor Sea, oil-oil correlations, organic geochemistry, petroleum exploration, petroleum systems
Organization: Geoscience Australia Data
Report on seismic reflection, traverse "C", Giralia Anticline, Western Australia

A reflection traverse was shot across the centre part of the Giralia Anticline in the Carnarvon Basin of Western Australia, in an attempt to verify the unconformity between Mesozoic and Palaeozoic sediments shown by a previous traverse across the northern part of the anticline. Shallow seismic events recorded were of good quality and correlated very well with surface geology. They also indicated two faults in places where steep dips in surface beds might, by analogy with the northern end, be expected. Deep events were in general of poor quality and inconsistent. However, over approximately a mile of the traverse, they were of good quality and indicated nonconformity with the shallow events.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Record, geology, seismic reflection, seismics
Organization: Geoscience Australia Data
A study of underground water at Wave Hill Station, Northern Territory

Wave Hill Station, a cattle station in the north-western portion of the Northern Territory, is situated between the 15 in. and 20 in. isohyets of annual rainfall. This Station has a large area of grassland on volcanic downs which cannot be fully utilised because of the lack of surface waters: supplies of underground water are essential for the expansion of the pastoral industry in this area. Bore records up to 1949 show that at least 30 bores have been sunk of which more than half are useless and only a very few produce a sufficient yield.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, groundwater
Organization: Geoscience Australia Data
L090 L091 Wilkes ice thickness measurements, Antarctica, 1962, 1963

During 1963, the Australian National Antarctic Research Expeditions carried out two over snow traverses in the vicinity of Wilkes Station, Antarctica. The Autumn Traverse reached a point about 100 miles east of Wilkes and the Spring Traverse a point about 300 miles south-east of Wilkes. Surface elevations were measured by barometric methods and ice thicknesses were determined by gravity and seismic techniques. Magnetic measurements were made and borehole temperatures were taken. Experiments were conducted to devise means of improving the quality of the seismic reflection records. The optimum frequency range for the filter settings was found to be 90-215 c/s. A hand-drilled 4-ft shot-hole was adequate in the coastal or low plateau regions within 150 miles of Wilkes. Further inland, a shot hole of at least 30-ft depth was required. The optimum charge size was one pound of explosive.

Tags: AQ, Published_External, Seismic Data, Seismology and Seismic Exploration, geophysics, seismic reflection, seismic survey, seismic velocity
Organization: Geoscience Australia Data
Offshore Otway Basin core logs (metadata statement and data package)

Gas production from the Inner Otway Basin commenced in the early 2000s but the deep-water part of this basin remains an exploration frontier. Ground-truthing of depositional environments (DE) and gross depositional environments (GDE) is an important contribution to play-based exploration in the Otway Basin. This digital dataset consists of core logs and core photographs of approximately 700 m of core from 19 wells across the entire offshore basin. Observations recorded in the logs include lithology, modal grain size, stacking patterns, carbonate mud percentage, bioturbation index, and DE/GDE intervals. Cubitt et al. 2023 describes how core-based DE/GDE interpretations were applied to wireline log signatures with interpretations made from TD to the base Cenozoic in 38 wells across the basin.&nbsp;DE and DE tracks are included in the well composite logs compiled by Nguyen et al (2024).

Tags: Cretaceous, Published_External, Sedimentology, Sherbrook Supersequence, Shipwreck Supersequence, Stratigraphy (incl. biostratigraphy, core log, gross depositional environment, offshore Otway Basin, sequence stratigraphy and basin analysis)
Organization: Geoscience Australia Data
A Bibliography of Australian foraminifera

With the increasing number of workers engaged in the study of the foraminifera in Australia and elsewhere and with the increased amount of literature that has appeared on the subject since 1930, it is considered that a bibliography of Australian Foraminifera would be of some value. The intensive investigations undertaken in the last few years in connexion with the search for oil, with its ultimate discovery in North-West Australia in December, 1953, together with the important part played by the micropalaeontologists in this exploratory work, make it necessary for workers to have literature on foraminifera easily accessible. The present bibliography is an attempt to list all known works in which reference is made to fossil and Recent foraminifera in the Australian region up to 1954. All papers, whether they contain systematic descriptions, or refer to stratigraphy, or are of a general geological nature, are included. Consequently this bibliography is divided into two sections: A) Works containing systematic descriptions of genera, species and varieties; [and] B) Works in which lists of foraminifera and stratigraphical and general geological references are given.

Tags: AU, Earth Sciences, GA Publication, Published_External, Record, palaeontology
Organization: Geoscience Australia Data
Hydrogeology and groundwater systems of the South Nicholson and Georgina basins, Northern Territory and Queensland

This report brings together data and information relevant to understanding the regional geology, hydrogeology, and groundwater systems of the South Nicholson – Georgina (SNG) region in the Northern Territory and Queensland. This integrated, basin-scale hydrogeological assessment is part of Geoscience Australia’s National Groundwater Systems project in the Exploring for the Future program. While the northern Georgina Basin has been at the centre of recent investigations as part of studies into the underlying Beetaloo Sub-basin, no regional groundwater assessments have focused on central and southern parts of the Georgina Basin since the 1970s. Similarly, there has been no regional-scale hydrogeological investigation of the deeper South Nicholson Basin, although the paucity of groundwater data limited detailed assessment of the hydrogeology of this basin. This comprehensive desktop study has integrated numerous geoscience and hydrogeological datasets to develop a new whole-of-basin conceptualisation of groundwater flow systems and recharge and discharge processes within the regional unconfined aquifers of the Georgina Basin.



Key outputs arising from this study include: (1) the development of a hydrostratigraphic framework for the region, incorporating improved aquifer attribution for over 5,000 bores; and (2) publicly available basin-scale groundwater GIS data layers and maps, including a regional watertable map for the whole Georgina Basin. This regional assessment provides new insights into the hydrogeological characteristics and groundwater flow dynamics within the Georgina Basin, which can aid in the sustainable management of groundwater for current and future users reliant on this critical water resource.





Tags: Barkly Group, Boodjamulla Springs Complex, Cambrian Limestone Aquifer, Cockroach Group, EFTF – Exploring for the Future, Georgina Basin, Groundwater hydrology, Narpa Group, National Groundwater Systems, Northern Australia, Northern Territory, Published_External, Queensland, South Nicholson Basin, Toko Group, airborne electromagnetics interpretation, conceptual groundwater model, groundwater discharge, groundwater flow systems, groundwater recharge, groundwater systems, groundwater-dependent ecosystems, hydraulic connectivity, hydrochemistry, hydrogeology, hydrostratigraphy, watertable map
Organization: Geoscience Australia Data
Report on Home of Bullion Mine, Barrow Creek, Northern Territory

Investigations into the geological structure of the immediate area of the mine are not complete. Various structural controls have been recognised in the Main Lode. The South Lode is mostly hidden under alluvium, but similar structures trend across the area. The possibility of a repetition copper lode in the South Lode area is hopeful. [The characteristics of the lodes and their ore reserves are discussed].

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, geology, mineral deposits, structural geology
Organization: Geoscience Australia Data
A spectroscopic study of the stability of uranyl-carbonate complexes at 25–150 °C and re-visiting the data available for uranyl-chloride, uranyl-sulfate, and uranyl-hydroxide species

The stabilities of uranyl-carbonate and uranyl-hydroxide aqueous complexes were experimentally determined at temperatures ranging from 25 to 125 °C using in situ UV–vis and Raman spectroscopic techniques. Combined with earlier determinations of the stability of chloride, sulfate, and hydroxide complexes at temperatures up to 250 °C, these data permit to create a consolidated dataset suitable for modeling of U(VI) mobilization in natural systems. The parameters of the Modified Ryzhenko-Bryzgalin and the Helgeson-Kirkham-Flowers (HKF) Equations of State (EoS) were derived based on this dataset and used for thermodynamic modeling different scenarios of U(VI) mobilization. These models suggest that at conditions relevant to natural systems, carbonate-mediated transport of U(VI) is likely suppressed by the high stability of solid UO2(OH)2 and Na2U2O7. In contrast, sulfate-mediated mobilization mechanisms are highly efficient at acidic and near-neutral pH conditions and can lead to effective hydrothermal mobilization of U(VI).

<b>Citation:</b> A. Migdisov, E. Bastrakov, C. Alcorn, M. Reece, H. Boukhalfa, F.A. Capporuscio, C. Jove-Colon, A spectroscopic study of the stability of uranyl-carbonate complexes at 25–150 °C and re-visiting the data available for uranyl-chloride, uranyl-sulfate, and uranyl-hydroxide species, <i>Geochimica et Cosmochimica Acta</i>, 2024, ISSN 0016-7037, https://doi.org/10.1016/j.gca.2024.04.023.

Tags: Critical Minerals, Geochemistry, Inorganic Geochemistry, Published_External, hydrogeochemistry, hydrothermal, mineral systems, thermodynamic stability, uranyl
Organization: Geoscience Australia Data
Ravensthorpe manganese deposits

The Copper Mine Creek deposit is the only manganese deposit worthy of attention in the Ravensthorpe area. It is a bedded deposit enriched by supergene water, and has an estimated tonnage of 6,000 tons per vertical foot. The ore is in a number of beds interspersed with an approximate equal footage of decomposed schist. Two shafts indicate ore down to 40 feet, and it is thought that it may continue well below that level.

Tags: AU-WA, Earth Sciences, GA Publication, Published_External, Record, economic geology, mineral deposits, resource assessment
Organization: Geoscience Australia Data
Micropalaeontological report on bore and surface samples from the Muswellbrook area, New South Wales

This report is based on the microexamination of samples from 13 bores and one surface sample from the Muswellbrook area received from M.A. Reynolds. A detailed description of the microfaunal content of the samples is given below.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, palaeontology, stratigraphy
Organization: Geoscience Australia Data
Micro-examination of bore cores from Stockton No. 2 diamond drill hole, Collie, Western Australia

Thirty-nine samples of bore cores from Stockton No. 2 Diamond Drill Hole, at Collie, were submitted for micro-palaeontological examination. The results of the examination are described in this report.

Tags: AU-WA, GA Publication, Geology, Published_External, Record, palaeontology
Organization: Geoscience Australia Data