AndreaBozzo/ceres-open-data-index huggingface dataset:
Duchess 1:250 000, R502 historical topographic map

The R502 series of maps has been replaced by the National Topographic Map Series (NTMS). The R502 series consists of 542 map sheets and covers Australia at a scale of 1:250,000. It was compiled from aerial photography, but only about one quarter of the series was contoured. The standard sheet size is 1 degree of latitude by 1.5 degrees of longitude. Transverse Mercator map projection and Clark 1858 datum were used. Coverage of the country was completed in 1968.

Tags: 250K scale, AU_QLD, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Murchison Gravity AHD Elevation

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This Murchison Gravity AHD Elevation is elevation data for the Murchison, WA Gravity Survey 2007 (P200662). This survey was acquired under the project No. 200662 for the geological survey of WA. The grid has a cell size of 0.005 degrees (approximately 525m).  This grid contains the ground elevation relative to the geoid for the Murchison, WA Gravity Survey 2007 (P200662). It represents the vertical distance from a location on the Earth's surface to the geoid. The data are given in units of meters. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.

Tags: Australia, DEM, EARTH SCIENCES, Earth sciences, Elevation, GADDS2.0, NCI, Published_External, WA, digital data, geoid, geophysical survey, geophysics, grid, raster, survey 200662, terrain
Organization: Geoscience Australia Data
GSWA South Yilgarn merged and levelled radiometric (non-AWAGS line data)

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 GSWA South Yilgarn merged and levelled radiometric (non-AWAGS line data) were acquired in 1999 by the WA Government, and consisted of 3935 line-kilometres of data at 300m line spacing and 70m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, Published_External, WA, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 1081, thorium, uranium, vector
Organization: Geoscience Australia Data
Set of Digital Grids of Crustal Thickness, Moho Depth, Thinning Factor and Residual Continental Crust for South Australia and Antarctica Conjugate Rifted Margins Resulting from Satellite Gravity Inversion by Nick Kusznir on a Contract with Geoscience Australia

32 digital grids in ASCII format (lat, lon, value) resulting from the work titled "South Australia - Antarctica Conjugate Rifted Margins: Mapping Crustal Thickness &amp; Lithosphere Thinning Using Satellite Gravity Inversion" are available for free download from Geoscience Australia web site as .zip file. Accompanied by comprehensive README file, and report in the .pdf format.

Tags: AQ, Data Package, Gravimetrics, Published_External, geophysics
Organization: Geoscience Australia Data
A reconnaissance crustal heat production assessment of the Australian Antarctic Territory (AAT)

We present calculated radiogenic crustal heat production values (ca. 1500 determinations) from available geochemical data (from OZCHEM, published literature and unpublished data) from exposed outcrops from the Australian Antarctic Territory (AAT). Geothermal heat production is derived from the radiogenic decay of the radioactive elements, primarily, U, Th and K, elements that are primarily concentrated in the earth's crust. In this report, we briefly assess the magnitude and heterogeneity of crustal heat production across the major regions within AAT. This information has been compiled as a foundation for subsequent, more comprehensive, geothermal heat assessments of the AAT (including heat flow, and thermal conductivity determinations) for the purposes of ice sheet modelling studies addressing the dynamic behaviour of the east Antarctic Ice Sheet.

Tags: AQ, Antarctic data, Earth Sciences, GA Publication, Published_External, Record, geothermal
Organization: Geoscience Australia Data
Progress report on hydrogeological studies in the Magela and Cooper Creek Catchments, Alligator Rivers region, NT, 1979

The Bureau of Mineral Resources is undertaking an investigation of the hydrogeology and hydrochemistry of the surficial materials in the Magela and Cooper Creek catchments of the Alligator Rivers Region, NT. This study is part of a program being undertaken by the Office of the Supervising Scientist for the recognition and monitoring of environmental change which may occur as a consequence of the mining of uranium in the catchments. This report is concerned with the progress of the study in 1979; it is mainly a record of the work undertaken and of the results to hand at the end of 1979.
The main aim of the investigation is to establish a network of monitoring bores in the two catchments for the purpose of gathering baseline data on groundwater chemistry and hydraulics of the surficial cover to the bedrock. The data will be used by others as input to computer models of the two catchments.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record
Organization: Geoscience Australia Data
Neale 1:250 000, R502 historical topographic map

The R502 series of maps has been replaced by the National Topographic Map Series (NTMS). The R502 series consists of 542 map sheets and covers Australia at a scale of 1:250,000. It was compiled from aerial photography, but only about one quarter of the series was contoured. The standard sheet size is 1 degree of latitude by 1.5 degrees of longitude. Transverse Mercator map projection and Clark 1858 datum were used. Coverage of the country was completed in 1968.

Tags: 250K scale, AU_WA, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Yardea (si53-03)

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
Geoscience Australia Survey 234, Post-cruise Report: Cross-shelf Sediment Transport in the Torres Strait - Gulf of Papua Region. RV Franklin Cruise 01/02, January - February 2004

The RV Franklin sailed from Brisbane on 17th January 2002 and returned to Cairns on 9th February, 2002.  The cruise discovered that a zone of strong tidal currents at the northern end of the Great Barrier Reef prevents the southward advance of sediment that would otherwise bury the coral reefs. 
The Fly River, located in close proximity to the northern end of the Great Barrier Reef, discharges about 120 million tonnes/yr of sediment.  This sediment does not penetrate as far south into the reef area as might be expected because, over glacial-interglacial cycles of sea level change, the southward-prograding deposits are eroded by tidal currents.
Deployment of an instrumented current meter and suspended sediment measurement frame on the seabed, offshore from the Fly River Delta, recorded a net sediment advection southwards.  Sediment transport was greatest following a northerly wind event, which caused high bottom stress and increased turbidity levels.
Swath sonar mapping and underwater video equipment were used to map a series of channels up to 220 m deep extending from eastern Torres Strait across the northern end of the Great Barrier Reef.  Channels in the north are clearly relict fluvial channels, exhibiting lateral accretion surfaces and incised channels that intersect and truncate underlying strata.  Over-deepened channels in the south, however, appear to have formed by tidal current scour.  They exhibit closed bathymetric contours at both ends and are floored with well-sorted carbonate gravely sand. Oceanographic observations indicate that the channels provide a conduit onto the shelf for up-welled Coral Sea water.  The deepest channels form isolated depressions, and possibly were the sites of lakes during the last ice age. Preliminary modelling indicates that the strongest tidal currents occur when sea level is about 40m below present, suggesting that the channels are Pleistocene or older in age and of relict origin.

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Record, bathymetry, marine, marine survey
Organization: Geoscience Australia Data
Murray Basin Hydrogeological Project : progress report 11 for half year ending 31 March 1984

Work continued on the compilation of the geological map of the Basin and associated figures. The Steering Committee met in December during the International Conference "Groundwater and Man" at the University of New South Wales, and one outcome of the meeting was the provision of a statement on the current status of the Project to the Victorian Parliamentary Salinity Committee, the Interim Council of the Institute of Freshwater Studies, and the River Murray Commission. During the period Dr R.S. Evans was nominated to represent the Victorian State Rivers and Water Supply Commission on the Steering Committee.

Tags: Earth Sciences, GA Publication, Published_External, Record, hydrogeology
Organization: Geoscience Australia Data
Braeside 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-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Lake Johnston Complete Spherical Cap Bouguer geodetic

Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
This Lake Johnston Complete Spherical Cap Bouguer geodetic is a complete spherical cap Bouguer anomaly grid for the South Yilgarn Gravity Survey, WA, 2009 (P200961). This gravity survey was acquired under the project No. 200961 for the geological survey of WA. The grid has a cell size of 0.0046 degrees (approximately 472m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 6125 gravity stations were acquired to produce this grid.

Tags: Australia, Bouguer, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, complete, geophysical survey, geophysics, grav, gravity, grid, ground digital data, raster, spherical cap, survey 200961
Organization: Geoscience Australia Data
Hydrogeology and groundwater resources of the Lake Amadeus and Ayers Rock region, Northern Territory

A hydrogeological map-set of the Lake Amadeus-Ayers Rock region in central Australia has been prepared as a pilot project for a national groundwater resources inventory. The maps in the set were compiled on a computer graphics system at 1:250000 scale from layers representing topography, bedrock geology, surficial geology, hydrodynamics, hydrochemistry, and water-bore locations. The quantitative information was obtained from a microcomputer database, and the geological and topographic information was digitised from specially revised maps. As the hydrogeological data are sparse it was decided to publish the main maps at 1:500000 scale. For three areas where more detailed information was available, inset maps at 1:100000 scale are presented. The region mapped is arid; annual rainfall is about 250 mm and potential evaporation close to 3000 mm. Groundwater recharge is of the order of I mm/year. Important aquifers are surficial Cainozoic sand and calcrete, and bedrock sandstone units including the Palaeozoic Pacoota Sandstone and Mereenie Sandstone. Groundwater varies in quality from 0.4 g/L to more than 200 g/L total dissolved solids. Groundwater converges from the north and south towards a southeast-trending chain of playas, where it discharges by evaporation. Hydrochemical evolution is apparent along groundwater flow paths. Fresher water, generally bicarbonate-rich, occurs close to the hilly recharge areas and in the calcrete. This evolves to highly saline chloride-rich brines in the playas, by processes of solution, precipitation of minerals, and evaporative concentration. Groundwater supplies have been developed for the Yulara tourist resort, the largest settlement in the area, although the water, derived from Cainozoic sands, is desalinated for use in domestic supplies. For a proposed tourist resort at Kings Canyon, a water supply is being developed from bedrock units, mainly the Pacoota Sandstone. Single bores are scattered through the region, supplying cattle stations and Aboriginal settlements. In this hydrogeologically complex region, extrapolation from conceptually known areas is difficult. The detailed assessment of ground water resources will require additional drilling.

Tags: AU-NT, Bulletin, Earth Sciences, GA Publication, Published_External, groundwater, hydrogeology
Organization: Geoscience Australia Data
Geoscience towards net zero - Advancing Australia's Green Steel potential workshop

The energy and resources industries are two essential pillars of Australia’s economy and vital sectors in the global transition to a sustainable and net-zero economy. To enhance Australia’s competitiveness, there is an urgent need to explore technical and strategic challenges and opportunities to unlock domestic hydrogen and green steel development pathways that are suitable for the Australian resources and manufacturing ecosystem. 

Held on 30 August 2023 in Perth, Western Australia, this workshop provided Australian stakeholders in the hydrogen, iron ore and government sectors a forum to share, discuss and provide insight on a broad range of aspects relevant to hydrogen and green steel development opportunities across Australia—including identifying investment hurdles, technical challenges and knowledge gaps, and fostering new innovation and collaboration opportunities.

As part of the Exploring for the Future program, Geoscience Australia, in collaboration with Monash University, premiered its Green Steel Economic Fairways tool, which utilises geoscience knowledge and data to highlight regional opportunities of high economic potential for hydrogen and green steel industries in Australia.

The recording of the workshop presentations is available on YouTube.

Tags: Australia’s Future Energy Resources, Australia’s Resources Framework, Decarbonisation, EFTF – Exploring for the Future, Economic Fairways, Engineering, Green steel, Hydrogen, Hydrogen studies, Iron, Other Earth Sciences, Published_External
Organization: Geoscience Australia Data
Opera Creek 1:50 000 topographic map

Product Specifications Coverage: Partial coverage, predominantly in northern Australia, along major transport routes, and other selected areas. About 1000 maps have been published to date. Currency: Ranges from 1968 to 2006. Coordinates: Geographical and UTM. Datum: AGD66, new edition WGS84; AHD. Projection: Universal Transverse Mercator UTM. Medium: Paper, flat copies only.

Tags: 50K scale, AU-QLD, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Geochemical map of Australia (First Edition) - Dy (dysprosium) series

Map(s) of Dy (dysprosium) concentration (Total content, Aqua Regia soluble content, and/or Mobile Metal Ion soluble content) in Top Outlet Sediment (TOS) and/or Bottom Outlet Sediment (BOS) samples, dry-sieved to &lt;2 mm and/or &lt;75 um grain size fractions. Source: The Geochemical Atlas of Australia (Caritat and Cooper, 2011)

Tags: AU, Earth Sciences, Geoscience, Published_External, Thematic Map, geochemistry, mapping, regolith
Organization: Geoscience Australia Data
Detecting anomalous metal concentrations in the regolith using cross‒compositional detrending

Deciphering element associations and affinities in the regolith is important for understanding mineral hosts and geological processes, such as sorting and pedogenesis. This has implications in environmental sciences in terms of distinguishing natural vs. anthropogenic element distributions and establishing realistic remediation targets. In mineral exploration, the strongest elements associations often drive distribution patterns in geochemical maps, yet these are not always the most useful ones to consider. 
In this contribution, we use National Geochemical Survey of Australia (NGSA) data to (1) identify the strongest controls of mineralogy (using major element total concentrations as a proxy) on trace metal distribution (using aqua regia Cu as an exemplar), and (2) remove the trend driven by the strongest major‒trace element association to calculate and map standardised residuals of the metals. In the coarse fraction (&lt;2 mm) of NGSA top outlet sediments (0‒10 cm depth), which are similar to floodplain sediments, aqua regia Cu is most strongly correlated with total Fe of all the major total elements (r = 0.76 based on log‒transformed concentrations). Thus the aqua regia Cu map mostly shows regions where Fe‒oxyhydroxides in the regolith are abundant (or not) and naturally adsorb dissolved cationic metals from surrounding solutions. The predicted Cu map based purely on the total Fe concentrations and on the Fe‒Cu correlation is visually similar to the raw map. Only when calculating the standardised residuals between actual and predicted aqua regia Cu does additional information become apparent in the form of completely different geochemical patterns. These highlight areas where Cu that is not related to Fe (and therefore not in the form of Cu adsorbed onto Fe‒oxyhydroxides) is abundant (or not). For instance this Cu could be associated with silicate, carbonate or sulfate minerals. Thus this approach allows both environmental management and exploration strategies targeting different types of metal associations to be more effectively implemented, thereby reducing risk and cost.
This Abstract &amp; Poster were presented at the 2017 Goldschmidt Conference (https://goldschmidt.info/2017/)

Tags: Cu map, EARTH SCIENCES, Published_External, mineralogy, trace metal distribution
Organization: Geoscience Australia Data
Atley Traverse (P200287), 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 Atley Traverse (P200287) contains a total of 90 point data values acquired at a spacing between 500 and 1000 metres. The data is located in WA and were acquired in 2002, under project No. 200287 for Geological Survey of Western Australia (GSWA).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 200287
Organization: Geoscience Australia Data
Willowra 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
Nymphea 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
Late Triassic (Norian) Conodonts from Challis 4, North West Shelf

Examination of a single sample from the petroleum well Challis 4 (core 2, 1420.7-1422.16 m) has yielded two conodont elements.
One of the elements is identified as Metapolygnathus primitius and the second element, a broken fragment, probably belongs to the same species. This species is found in the M.
primitius conodont Zone (Orchard, 1991; Krystyn, 1980) and has been reported in other wells on the North West Shelf (Nicoll &amp; others, ms).

Tags: Earth Sciences, GA Publication, Professional Opinion, Published_External
Organization: Geoscience Australia Data