AndreaBozzo/ceres-open-data-index huggingface dataset:
AUSGeoid98 v.1.0 data files:  (sj56-12)

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 Data format: AUSGeoid98 data files have a header record at the start of each file, to distinguish them from the superseded AUSGeoid93 data files. AUSGeoid98 data files show the geoid-ellipsoid separation to 3 decimal places, while the superseded AUSGeoid93 data files showed only 2 decimal places.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
Cloncurry, Qld, 1973 (P403), 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 Cloncurry, Qld, 1973 (P403), radiometric line data, AWAGS levelled were acquired in 1973 by the QLD Government, and consisted of 13347 line-kilometres of data at 1500m line spacing and 150m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

Tags: AWAGS, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, Published_External, QLD, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 403, thorium, uranium, vector
Organization: Geoscience Australia Data
The Palaeozoic in New South Wales-geology and mineral resources

The Tasman Fold Belt System in New South Wales includes three out-cropping fold belts: the Neoproterozoic-Early Palaeozoic Kanmantoo Fold Belt, the Early Palaeozoic-Carboniferous Lachlan Fold Belt, and the Early Palaeozoic-Triassic New England Fold Belt. Substantial production of metal has come from mineral deposits in the Lachlan and New England Fold Belts and from alluvial deposits in their cover rocks.  The Kanmantoo Fold Belt has a restricted range of mineralisation, which includes stratiform(?) iron-rich copper lodes in metamorphosed mafic volcanics, lead-silver veins and gold-quartz veins. Geological similarities with Victoria and Tasmania suggest potential for gold and base metals developed in Late Proterozoic-Cambrian mafic arc rocks.  The Lachlan Fold Belt contains a wide range of deposits. The most important types are porphyry, epithermal and skarn-type copper, copper-gold, and gold deposits developed in Ordovician basaltic and andesitic volcanics (shoshonites) and associated intrusives; base-metal and gold deposits, with both volcanogenic (VMS) and thrust-related features, in Silurian felsic volcanic-sedimentary rock trough and basin sequences; tin, gold and smaller tungsten, molybdenum and base-metal deposits in Silurian and Early Devonian granites; large gold and base-metal deposits in Early Devonian turbiditic rocks in the Cobar region (Cobar-type deposits), probably formed during deformation and closure of the Cobar Basin; and gold vein deposits in folded sedimentary rocks, for example at Hill End.  There is good potential for discovery of further deposits within the Lachlan Fold Belt and in extensions under cover rocks. The main targets are deposits related to Ordovician and Silurian volcanism, Cobar-type deposits and deposits associated with sutures and thrusts.  Recent investigations suggest that a poorly understood, but possibly widespread, Late Carboniferous-Early Permian metallogenic epoch occurs in eastern Australia, covering parts of the Lachlan and New England Fold Belts.  The New England Fold Belt in New South Wales can be characterised as a tin, gold, antimony province. Deposits formed in a variety of settings. The most important associations are: base-metal deposits in Early Permian felsic volcanics; gold-silver-base-metal deposits in Late Permian felsic to intermediate volcanics of the Drake area; tin, gold, molybdenum, bismuth and tungsten deposits associated with Late Permian-Early Triassic granites; and metahydrothermal gold, antimony and tungsten-bearing quartz veins occurring in faults, shears and joints commonly associated with regional dislocations (and thought to have formed from metamorphic dehydration of accreted sediments and volcanics). Recent exploration has located epithermal gold mineralisation in Early Permian intermediate and felsic volcanic centres, in previously unexplored areas of the Tamworth Zone in the west of the New England Fold Belt, which were probably related to rifting in the foreland (Meandarra Rift).

Tags: Earth Sciences, GA Publication, Journal, NSW, Published_External
Organization: Geoscience Australia Data
L035 Carpentaria Basin seismic survey, QLD, 1958

The Bureau of Mineral Resources carried out a seismic survey of four months' duration in the Carpentaria Basin, North Queensland, in the second half of 1958. The survey showed that the Carpentaria Basin deepens
gradually from the south, east, and west towards the southeastern corner of the Gulf of Carpentaria. The maximum thickness of sediments measured was about 1000 metres near Rutland Plains in the north of the survey area. It was found that gravity anomalies in the area do not correlate with basement relief.

Tags: AU-QLD, HVC_144637, Published_External, Seismic Data seismic survey, Seismology and Seismic Exploration, geophysics, petroleum exploration, seismic reflection, seismic velocity
Organization: Geoscience Australia Data
Paleozoic alkaline and related igneous rocks of Australia GIS

Alkaline and related rocks are a relatively rare class of igneous rocks worldwide. Alkaline rocks encompass a wide range of rock types and are mineralogically and geochemically diverse. They are typically though to have been derived by generally small to very small degrees of partial melting of a wide range of mantle compositions. As such these rocks have the potential to convey considerable information on the evolution of the Earth’s mantle (asthenosphere and lithosphere), particularly the role of metasomatism which may have been important in their generation or to which such rocks may themselves have contributed. Such rocks, by their unique compositions and or enriched source protoliths, also have considerable metallogenic potential, e.g., diamonds, Th, U, Zr, Hf, Nb, Ta, REEs. It is evident that the geographic occurrences of many of these rock types are also important, and may relate to presence of old cratons, craton margins or major lithospheric breaks. Finally, many alkaline rocks also carry with them mantle xenoliths providing a snapshot of the lithospheric mantle composition at the time of their emplacement.

Accordingly, although Alkaline and related rocks comprise only a volumetrically minor component of the geology of Australia, they are of considerable importance to studies of lithospheric composition, evolution and architecture and to helping constrain the temporal evolution of the lithosphere, as well as more directly to metallogenesis and mineralisation.

This GIS product is part of an ongoing compilation of the distribution and geology of alkaline and related rocks throughout Australia. The accompanying report document alkaline and related rocks of Paleozoic age.

Tags: Alkaline Rocks Atlas of Australia, Alkaline rocks, Australia, Australia’s Resources Framework, EFTF – Exploring for the Future, Earth Sciences, Igneous rocks, Published_External
Organization: Geoscience Australia Data
Lake George 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-NSW, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Stuart Shelf (P197922), gravity point data

Gravity data measures small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
 This Stuart Shelf (P197922) contains a total of 1060 point data values acquired at a spacing between 100 and 500 metres. The data is located in SA and were acquired in 1979, under project No. 197922 for Department of Minerals and Energy (Victoria).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 197922
Organization: Geoscience Australia Data
Cobar Special 1:250,000 regolith-landform map CRC LEME

The Cobar Special 1:250,000 regolith-landform map illustrates the distribution of regolith materials and the landforms on which they occur, described using the RTMAP scheme developed by Geoscience Australia

Tags: 250K scale, AU-NSW, Geological Map, Geology, Published_External, landforms, regolith
Organization: Geoscience Australia Data
Miocene volcanic seamounts on northern Lord Howe Rise: lithology, age, ferromanganese crusts, and origin

Multibeam sonar swath-mapping has revealed small submarine volcanic cones on the northeastern Lord Howe Rise (LHR), a submerged ribbon continent. Two such cones, aligned NNW and 120 km apart, were dredged at 23-24Degrees S. Water depth is about 1150 m nearby: the southern cone rises to 750 m and the northern to 900 m. Volcanic rocks dredged from the cones are predominantly highly altered hyaloclastites with minor basalt. The clasts are mostly intensely altered vesicular brownish glass with lesser basalt, in zeolitic, clayey, micritic or ferruginous cement. Lavas and hyaloclastites contain altered phenocrysts of olivine and plagioclase, and fresh clinopyroxene. The latter have compositions between acmite and Ti-augite, and match well clinopyroxene phenocrysts in undersaturated intraplate basanitic mafic lavas. 
Interbedded micrites in the volcaniclastics represent calcareous ooze that was deposited with (or later than) the volcanic pile. Foraminifera indicate that the oldest micrite is late Early Miocene (~16 Ma), and that the original ooze was deposited in cool water. Late Miocene to Pliocene micrites, presumed to be later infillings, all contain warm water forms. This evidence strongly suggests that both cones formed in pelagic depths in the Early Miocene. Ferromanganese crusts from the two cones are up to 7 cm thick and similar physically, but different chemically. The average growth rate is 3 mm/m.y.. Copper, nickel and cobalt content are relatively high in the north, but copper does not exceed 0.08 wt %, nickel 0.65% and cobalt 0.25%. The Mn:Fe ratio is high in the south (average 13.7) suggesting strong hydrothermal influence.
Such small volcanic cones related to intraplate hotspot-type magmatism may occur in extensive fields like those off southern Tasmania. On Lord Howe Rise, the known small volcanic cones coincide with broad gravity highs in areas of shallow continental basement. The highs probably represent Neogene plume-related magmatism. The thick continental crust may dissipate and spread the magma widely, whereas plumes may penetrate thin oceanic crust more readily and build larger edifices. The correspondence of the ages derived from micropalaeontology and from extrapolating from nearby dated hotspot traces support such a genesis. Accordingly, gravity highs in the right setting may help predict fields of small volcanic seamounts.

Tags: AU-EEZ, Abstract, Earth Sciences, External Publication, Published_External, marine
Organization: Geoscience Australia Data
AusArray 2° continental-scale deployment

Output type: Exploring for the Future Extended Abstract

Short abstract: Passive seismic methods serve as versatile tools for probing Earth structure and facilitating new geological and geodynamic insight across vast areas. Tomographic velocity models derived from continental scale passive seismic data are becoming increasingly important in guiding resource exploration into prospective regions. While Australia has been leading this field our existing data coverage and quality is insufficient resulting in large uncertainties in continental scale models. With the aim of robustly constraining Australia’s lithospheric architecture the Exploring for the Future (EFTF) program began collection of a 2° (~220 km spaced) AusArray passive seismic data coverage. There are over 150 broad-band seismometer stations simultaneously deployed across Australia for a period of up to two years - a pioneering effort on a continental scale. The quality assurance/quality control (QA/QC) analysis and deployment approaches, refined during previous 0.5° (~55 km spaced) campaigns, were rigorously applied to prevent data errors or data loss. Advanced standard operating procedures and stakeholder engagement materials were developed and openly shared with broader professional communities to support similar activities, fostering the continued advancement of passive seismic methods in both industry and research. The resulting data will be shared via the eCat system in raw format, accompanied by a StationXML file that holds the QA/QC information. This file can be used to apply QA/QC results to raw waveforms, enabling their use in subsequent analysis and modelling endeavors. Insights from this survey will guide future higher resolution AusArray deployments. &nbsp;

Citation: Gorbatov, A., Hejrani, B., Holzschuh, J., Zhao, J., Hassan, R., Cathro, D., Czarnota, K., Kuoni, J., Sweeney, M., Glowacki, J., Murdie, R., O'Donnel, J.P. & Haydon, S.J., 2024. AusArray continent-scale deployment. In: Czarnota, K. (ed.) Exploring for the Future: Extended Abstracts, Geoscience Australia, Canberra, https://doi.org/10.26186/149640 

Tags: AusArray, Australia’s Resources Framework, EFTF – Exploring for the Future, Passive Seismic imaging, Published_External, Seismology and Seismic Exploration
Organization: Geoscience Australia Data
Bidura 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-NSW, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Paroora 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-SA, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Quaternary Calcarenite Stratigraphy on Lord Howe Island, Southwestern Pacific Ocean and the Record of Coastal Carbonate Deposition

Lord Howe Island is a small, mid-ocean volcanic and carbonate island in the southwestern Pacific Ocean. Skeletal carbonate eolianite and beach calcarenite on the island are divisible into two formations based on lithostratigraphy. The Searles Point Formation comprises eolianite units bounded by clay-rich paleosols. Pore-filling sparite and microsparite are the dominant cements in these eolianite units, and recrystallised grains are common. Outcrops exhibit karst features such as dolines, caves and subaerially exposed relict speleothems. The Neds Beach Formation overlies the Searles Point Formation and consists of dune and beach units bounded by weakly developed fossil soil horizons. These younger deposits are characterised by grain-contact and meniscus cements, with patchy pore-filling micrite and mirosparite. The calcarenite comprises several disparate successions that contain a record of up to 7 discrete phases of deposition. A chronology is constructed based on U/Th ages of speleothems and corals, TL ages of dune and paleosols, AMS 14C and amino acid racemization (AAR) dating of land snails and AAR whole-rock dating of eolianite. These data indicate dune units and paleosols of the Searles Point Formation were emplaced during oxygen isotope stage (OIS) 7 and earlier in the Middle Pleistocene. Beach units of the Neds Beach Formation were deposited during OIS 5e while dune units were deposited during two major phases, the first coeval with or shortly after the beach units, the second later during OIS 5 (e.g. OIS 5a) when the older dune and beach units were buried.
Large-scale exposures and morphostratigraphical features indicate much of the carbonate was emplaced as transverse and climbing dunes, with the sediment source located seaward of and several metres below the present shoreline. The lateral extent and thickness of the eolianite deposits contrast markedly with the relatively small modern dunes.

Tags: AU-NSW, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, isotopes, marine, stratigraphy
Organization: Geoscience Australia Data
Cotter Dam to Mt Franklin Calibration, Gravity (P197490), 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 Cotter Dam to Mt Franklin Calibration, Gravity (P197490) contains a total of 2 point data values acquired at a spacing of None metres. The data is located in ACT, NSW and were acquired in 1974, under project No. 197490 for None.

Tags: ACT, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 197490
Organization: Geoscience Australia Data
Detailed Gravity Survey, SA 2007A36 (P200753), 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 Detailed Gravity Survey, SA 2007A36 (P200753) contains a total of 121 point data values acquired at a spacing between 200 and 420 metres. The data is located in SA and were acquired in 2007, under project No. 200753 for None.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 200753
Organization: Geoscience Australia Data
Geophysical surveys at Mount Hope, New South Wales

Mount Hope, a small town in Central New South Wales, is south of and 101 miles by main road from Cobar, and 11 miles north of Matakana siding on the Sydney-Broken Hill railway line. The ores mined in the Mount Hope district have been mainly those of copper, the principal mines being the Mount Hope mine, close to the town, and the Great Central and Comet mines, three miles further south. At present, the only mine in production is the Mount Hope mine, where the leaching process is being used by the Caroline Copper Mines. At the request of North Broken Hill Ltd., geophysical surveys were carried out on two areas: the Mount Hope mine area, and the Comet Mine area. The field work was commenced in May, 1950, and occupied three months. This report gives an account of the geophysical surveys and their results.

Tags: AU-NSW, Earth Sciences, GA Publication, Published_External, Record, geophysics
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Longreach (sf55-13)

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

Tags: AU, AUSGeoid98, Geodesy, Geodetic Data, Published_External, dataset, geodesy
Organization: Geoscience Australia Data
Mansfield 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-VIC, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data