AndreaBozzo/ceres-open-data-index huggingface dataset:
Understanding geochemical interfaces in the Georgina Basin. Applications for mineral exploration.

In-situ near-surface geological boundaries and redox transition zones are valuable geochemical interfaces for trapping and concentrating elements that can be indicators for deeper or distal mineralisation. As a result, they can be a more cost-effective and geochemically sensitive sampling target than in-situ alteration or mineralisation, yet this is often overlooked in traditional exploration and drilling campaigns. However, the geochemical processes that transport or trap these elements can differ markedly depending on many factors including lithology, weathering regime and hydrogeology. Thus, building an understanding of the local geochemical interface(s) and their provenance is needed when entering a new geological province (or basin), to best enable their use as a tool for mineral exploration.

As part of Geoscience Australia’s Exploring for the Future Program, our investigation focuses on the Georgina Basin. Using new whole-rock and isotope geochemistry from 9 drillholes in the central Northern Territory, we demonstrate an improved understanding of the processes affecting geochemical migration in this region. Our findings provide insights into Georgina Basin's sediment-hosted Zn-Pb and phosphate potential, while also having relevance for new clay-hosted rare-earth element (REE) prospectivity.

Portable XRF data of these drillholes provided the first indication of geochemically enriched interfaces in the Georgina Basin, with elevated Pb, Zn, Cu, P and REEs observed at consistent depths between drillholes. Follow-up whole-rock geochemistry (76 samples) and isotopes (Pb and Sr, 17 samples) is presented here, which targeted transects through these interfaces, as well as background lithostratigraphy. 

Looking into the elemental and mineral associations across these interfaces, clear redox transitions are evident at two depths in the basin. The shallower geochemical interface (~5-20 m depth) is interpreted as a surface weathering profile, while the deeper interface, coined the water-intercept zone (~40-70 m depth), is found near the water-table of the regional aquifer. Supported by geochemistry, we discuss the mechanisms that have formed the water-intercept zone, covering the provenance, migration and trapping of geochemical signals. Finally, we showcase how the water-intercept zone can be practically used for mineral exploration, by integrating with the groundwater chemistry to validate and map radiogenic Pb isotope anomalies representative of the basin’s sediment-hosted Zn-Pb mineralisation.

Abstract presented at the 30th International Applied Geochemistry Symposium 2024 (IAGS 2024)

Tags: Barkly-Isa-Georgetown, EFTF – Exploring for the Future, East Tennant, Exploration Geochemistry, Exploration geochemistry, Georgina Basin, Inorganic geochemistry, Lead isotopes, hydrogeochemistry, interface, redox
Organization: Geoscience Australia Data
GSQ Maryborough Gympie elevation grid geodetic

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This GSQ Maryborough Gympie elevation grid geodetic is elevation data for the Maryborough, Qld, 2005. This survey was acquired under the project No. 1094 for the geological survey of QLD. The grid has a cell size of 0.00083 degrees (approximately 88m).  This grid contains the ground elevation relative to the geoid for the Maryborough, Qld, 2005. 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, QLD, digital data, geoid, geophysical survey, geophysics, grid, raster, survey 1094, terrain
Organization: Geoscience Australia Data
Headingly 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
Central Australian Cenozoic Basins hydrogeological inventory

This Central Australian Cenozoic Basins dataset contains descriptive attribute information for the areas bounded by the relevant spatial groundwater feature in the associated Hydrogeology Index map. Descriptive topics are grouped into the following themes: Location and administration; Demographics; Physical geography; Surface water; Geology; Hydrogeology; Groundwater; Groundwater management and use; Environment; Land use and industry types; and Scientific stimulus.
Cenozoic basins are an important source of readily accessible groundwater within the arid deserts of central Australia. This province represents a collection of six notable Cenozoic basins within the region, including the Ti Tree, Waite, Hale, Mount Wedge, Lake Lewis and Alice Farm basins. Many local communities in this region (such as Papunya, Ti Tree and Ali Curung) rely upon groundwater stored within Cenozoic basin aquifers for their water security. The basins typically contain up to several hundred metres of saturated sediments that can include relatively thick intervals of hydraulically conductive sands, silts and minor gravels. 
It is noted that the potential groundwater storage volumes in the Cenozoic basins are much greater than the annual amount of runoff and recharge that occurs in central Australia, making them prospective targets for groundwater development. Groundwater quality and yields are variable, although relatively good quality groundwater can be obtained at suitable yields in many areas for community water supplies, stock and domestic use and irrigated horticulture operations, for example, in the Ti Tree Basin.
However, not all of the Cenozoic basins have the potential to supply good quality groundwater resources for community and horticultural supplies. With the exception of several small sub-regions, most of the Waite Basin has very little potential to supply good quality groundwater for agricultural use. This is mainly due to limited aquifer development, low yielding bores and elevated groundwater salinity (commonly &gt;2000 mg/L Total Dissolved Solids). However, bores have been successfully installed for smaller-scale pastoral stock and domestic supplies and small communities or outstations in the Waite Basin.

Tags: Basin Analysis, EARTH SCIENCES, ECOLOGY, ENVIRONMENTAL SCIENCES, Environmental Management, Exploring for the Future, GEOLOGY, Groundwater, Hydrogeology, Land Use and Environmental Planning, National Groundwater Sytems, National Hydrogeological Inventory, PHYSICAL GEOGRAPHY AND ENVIRONMENTAL GEOSCIENCE, Published_External, Sedimentology, Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy)
Organization: Geoscience Australia Data
Green Swamp Well, Lander River, NT, 1987 (P531), magnetic line data, AWAGS levelled

Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
 These line dataset from the Green Swamp Well, Lander River, NT, 1987 survey were acquired in 1987 by the NT Government, and consisted of 26370 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, NT, Published_External, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 531, vector
Organization: Geoscience Australia Data
GSWA Eucla Basin 6 Potassium Grid Geodetic

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 radiometric potassium grid has a cell size of 0.00042 degrees (approximately 43m) and shows potassium element concentration of the Eucla Coast, WA, 2009 (Eucla Basin 6) in units of percent (or %). The data used to produce this grid was acquired in 2009 by the WA Government, and consisted of 122145 line-kilometres of data at a line spacing between 200m and 400m, and 50m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NCI, Published_External, WA, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, spectrometry, survey 1213
Organization: Geoscience Australia Data
Halls Creek, Bungle Bungle area gravity (P199302), 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 Halls Creek, Bungle Bungle area gravity (P199302) contains a total of 441 point data values acquired at a spacing of 1000 metres. The data is located in WA and were acquired in 1993, under project No. 199302 for Australian Geological Survey Organisation (AGSO).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199302
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (si49-09)

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
GSQ Mary Kathleen Thorium grid geodetic

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 radiometric thorium grid has a cell size of 9e-05 degrees (approximately 10m) and shows thorium element concentration of the Isa Region Airborne Magnetic Radiometric and DEM Survey, QLD, 2017 in units of parts per million (or ppm). The data used to produce this grid was acquired in 2017 by the QLD Government, and consisted of 113387 line-kilometres of data at a line spacing between 50m and 100m, and 50m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, NCI, Published_External, QLD, Th, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, rad, radiometrics, raster, spectrometry, survey 1292, thorium
Organization: Geoscience Australia Data
Canning Basin (Kidson Sub-basin) and Carnarvon-Perth Basin Onshore 2D Reflection Seismic Data Reprocessing

Geoscience Australia commissioned reprocessing of selected legacy onshore 2D reflection seismic data in the Kidson Sub-basin of the Canning Basin, Cobb Embayment in the SE Canning Basin, NW Canning Basin, and Southern Carnarvon, Western Australia. This reprocessing is a collaboration between the Geoscience Australia Exploring for the Future (EFTF) program and The Government of Western Australia, Department of Mines, Industry Regulation and Safety, Exploration Incentive Scheme (EIS). 
Reprocessing was carried out by Ion (Cairo) between January 2018 and September 2018. The Canning project comprised 30 lines from 5 vintages of data totalling 1412 km. The Carnarvon project comprised 36 lines from 6 vintages of data totalling 1440 km.   
This reprocessing is intended to produce an improved quality seismic dataset that will increase confidence in the mapping of the structure and stratigraphy of the onshore sedimentary basins of Western Australia. The new seismic reprocessed data is being made available as pre-competitive information to assist industry to better target areas likely to contain the next major oil, gas and mineral deposits.
Processed data for this survey are available on request from clientservices@ga.gov.au - Quote eCat# 144258

Tags: 2D Deep Reflection Seismic, EARTH SCIENCES, EFTF, GEOLOGY, GEOPHYSICS, Published_External
Organization: Geoscience Australia Data
Clermont, QLD, 1989 (P1154), 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 Clermont, QLD, 1989 (P1154), radiometric line data, AWAGS levelled were acquired in 1989 by the QLD Government, and consisted of 15875 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, QLD, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 1154, thorium, uranium, vector
Organization: Geoscience Australia Data
Barnett 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
Walgett 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
Australian palaeomagnetism, rockmagnetism, and environmental magnetism 2000 : abstracts

Abstracts for Workshop organised jointly by the Australian Geological Survey Organisation, CSIRO Division of Exploration and Mining, and the Research School of Earth Sciences ANU. Workshop held on May 3rd and 4th at AGSO.

Tags: AU, Earth Sciences, GA Publication, Published_External, Record, geomagnetism, palaeomagnetism
Organization: Geoscience Australia Data
GSSA Warrina Elevation Grid Geodetic Laser

Digital Elevation data record the terrain height variations from the processed point- or line-located data recorded during a geophysical survey. This GSSA Warrina Elevation Grid Geodetic Laser is elevation data for the Warrina Airborne Magnetic Radiometric and DEM Survey, SA, 2017. This survey was acquired under the project No. 1281 for the geological survey of SA. The grid has a cell size of 0.00042 degrees (approximately 43m).  This grid contains the ground elevation relative to the geoid for the Warrina Airborne Magnetic Radiometric and DEM Survey, SA, 2017. 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, SA, digital data, geoid, geophysical survey, geophysics, grid, raster, survey 1281, terrain
Organization: Geoscience Australia Data
BMR SW Qld Helicopter Gravity (P195914), 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 BMR SW Qld Helicopter Gravity (P195914) contains a total of 758 point data values acquired at a spacing between 8045 and 16090 metres. The data is located in QLD and were acquired in 1959, under project No. 195914 for Bureau of Mineral Resources (BMR).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, QLD, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 195914
Organization: Geoscience Australia Data
BMR journal of Australian geology and geophysics vol.13 no.2

Contents:
1.Cooper WV, McKavanagh B, Boreham B, McCue K, Cuthbertson R, Gibson G. The regional seismographic network and seismicity of central Queensland. 
2.Alley NF, Clarke JDA. Stratigraphy and palynology of Mesozoic sediments from the Great Australian Bight area, southern Australia. 
3.Shafik S. Eocene and Oligocene calcareous nannofossils from the Great Australian Bight: evidence of significant reworking episodes and surface-water temperature changes. 
4.Jones MJ, Truswell EM. Late Carboniferous and Early Permian palynostratigraphy of the Joe Joe Group, southern Galilee Basin, Queensland, and implications for Gondwanan stratigraphy. 
5.McCue KF, McArdle A. More on earthquake fatalities in Australia: note. 
6.O'Brien PE, Christie Blick N. Glacially grooved surfaces in the Grant Group, Grant Range, Canning Basin and the extent of Late Palaeozoic Pilbara ice sheets. 
7.Ferguson J, Etminan H, Ghassemi F. Salinity of deep formation water in the Canning Basin, Western Australia.

Tags: AU, Earth Sciences, GA Publication, Journal, Published_External
Organization: Geoscience Australia Data
Laura 1:100 000 topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

Tags: 100K scale, AU-QLD, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Forsayth 1:100 000 topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

Tags: 100K scale, AU-QLD, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data