AndreaBozzo/ceres-open-data-index huggingface dataset:
AUSGeoid98 v.1.0 data files: Cape Nelson (sc55-04)

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 Data format: AUSGeoid98 data files have a header record at the start of each file, to distinguish them from the superseded AUSGeoid93 data files. AUSGeoid98 data files show the geoid-ellipsoid separation to 3 decimal places, while the superseded AUSGeoid93 data files showed only 2 decimal places.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
Youanmi, WA, 1999 (P726), 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 Youanmi, WA, 1999 (P726), radiometric line data, AWAGS levelled were acquired in 1999 by the WA Government, and consisted of 17233 line-kilometres of data at 400m line spacing and 80m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS.

Tags: AWAGS, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, Published_External, WA, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 726, thorium, uranium, vector
Organization: Geoscience Australia Data
Wilson Creek 1:100,000 regolith-landform map CRC LEME

The Wilson Creek 1:100,000 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: 100K scale, AU-NT, Geological Map, Geology, Published_External, landforms, regolith
Organization: Geoscience Australia Data
Ngalia Basin Semi Detail Gravity (P196709), 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 Ngalia Basin Semi Detail Gravity (P196709) contains a total of 988 point data values acquired at a spacing between 250 and 500 metres. The data is located in NT and were acquired in 1967, under project No. 196709 for Bureau of Mineral Resources (BMR).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NT, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 196709
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (si52-05)

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
How Passive Seismic Surveys Work

This animation shows how passive seismic surveys Work.  It is part of a series of Field Activity Technique Engagement Animations. The target audience are the communities that are impacted by our data acquisition activities. There is no sound or voice over. The 2D animation includes a simplified view of what passive seismic equipment looks like, what the equipment measures and how the survey works.

Tags: AusArray, EARTH SCIENCES, EFTF - Exploring For The Future, ENVIRONMENTAL SCIENCES, GEOCHEMISTRY, Geoscience Knowledge Sharing, Published_External, Rayleigh Wave, earthquake, geophysical survey, lithospheric architecture, passive seismic, passive survey, primary, secondary, seismic, seismogram, seismograph, seismometer, stakeholder engagement, tomography
Organization: Geoscience Australia Data
Broken Hill (Broken Hill and Taltingan 1:100 000 sheet areas) airborne geophysical survey, 1994: operations report

The Australian Geological Survey Organisation flew an airborne geophysical survey of 56 000
line km over the Broken Hill and Taltingan 1:100 000 map Sheet areas on the Broken Hill
1:250 000 map Sheet area during October and November 1994.
The survey was flown along east-west flight lines spaced mainly 100 metres apart (200 m &amp;
400 m in some areas). at an altitude of 60m above ground level.
The total magnetic intensity, gamma-ray spectrometric and digital elevation model data which
were collected during the survey have been processed and are available for purchase, in both
digital (point located data and gridded) and map form, from the Australian Geological Survey
Organisation. Colour and greyscale pixel image maps are also available.

Tags: Earth Sciences, GA Publication, Published_External, Record, geophysics
Organization: Geoscience Australia Data
Bremer 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
The nature of the Wallaby (Cuvier) Plateau and other igneous provinces of the west Australian margin

Seismic reflection data and dredged rocks confirm that the Wallaby (Cuvier) Plateau off western Australia is underlain by a volcanic basement consisting of complex packages of dipping reflectors similar to those of other large, oceanic, igneous provinces (LIPs) of the eastern Indian Ocean, such as the Kerguelen Plateau. Wedges of seaward-dipping reflectors underlie the Wallaby Saddle, which separates the plateau from the adjacent upper continental slope. These are interpreted to be interbedded subaerial lava flows and volcaniclastics similar to those obtained by ODP drilling of like features beneath the margins of the North Atlantic Ocean. Volcanic rocks dredged from the Wallaby Plateau are altered transitional tholeiitic basalts with immobile element contents and ratios similar to basalts from the Naturaliste Plateau, eastern Broken Ridge, and the Bunbury Basalt of southern western Australia. Basalts from all of these regions show compositional features indicative of the involvement of sub-continental lithospheric mantle in their petrogenesis, and appear to have been erupted between 120 and 100 Ma as a result of an anomalous post-breakup heating event. A consistent explanation for the origin of the Wallaby Plateau, and similar large, post-breakup volcanic features (LIPs) of the eastern Indian Ocean, is that they are the product of a single, large hotspot (Kerguelen hotspot or mantle plume). However, for the Wallaby Plateau and its associated Sonne and Sonja Ridges there is another possible origin, that they are the products of convective partial melting following a ridge crest jump in the Cuvier Abyssal Plain. The distribution of other volcanic features of the western Australian margin can be readily explained by magmatism associated with dynamic rift processes rather than proximity to a plume.

Tags: Earth Sciences, GA Publication, Journal, Published_External, WA
Organization: Geoscience Australia Data
Bago Maragle magnetic grid geodetic

Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
This Bago Maragle magnetic grid geodetic has a cell size of 0.00042 degrees (approximately 42m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1996 by the NSW Government, and consisted of 6694 line-kilometres of data at 200m line spacing and 60m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, TMI, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 659, total magnetic intensity
Organization: Geoscience Australia Data
I2+3: Total systems analysis of I2+3: Total systems analysis of the Mt Isa Eastern Succession

I2+3: Total systems analysis of I2+3: Total systems analysis of the Mt Isa Eastern Succession

Tags: AU-QLD, Earth Sciences, PMD*CRC Publication, Project I2-Prests and Posters, Published_External, pmd*CRC
Organization: Geoscience Australia Data
Cruise Proposal : AGSO Cruise 147 : Stratigraphy, Tectonic History and Palaeoclimate of the Offshore Tasmanian Region

The Tasmanian region's geological history bears on the history of the entire southern margin of Australia. The southern margin is already a major producer of petroleum from the Upper Cretaceous and Paleocene sequences in the Gippsland Basin, and has given encouraging exploration results in several other basins. The Otway Basin, in particular, is the scene of major recent offshore gas discoveries in the Cretaceous sequence. Both the west Tasmanian margin and the South Tasman Rise have petroleum potential.
The targets on the forthcoming Rig Seismic sampling cruise of 31 days (AGSO Cruise 147) are on the
west Tasmanian margin, the South Tasman Rise, the East Tasman Rise, and the adjacent oceanic areas.
The general bathymetry of the region is shown in Figure 1. The targets were defined by the early 1994 Tasmante cruise (Exon et al., 1994), which used the French research vessel l' Atalante on an exchange
basis to swath-map the sea bed. About two-thirds of both the South Tasman Rise (STR) and the west
Tasmanian margin were mapped, an areal coverage exceeding 200 000 km 2. The very accurate 1:250
000 scale bathymetric maps and sonar images arising from the Tasmante survey provide an unequalled
source of structural information. A simplified bathymetric map of the region, based largely on the Tasmante swath-mapping, is shown in Figure 2.
The aim of the present sampling cruise is to ground truth the maps and ideas arising from the Tasmante
cruise. It is designed to sample basement and Phanerozoic sedimentary rocks in all three continental
blocks, Cainozoic volcanics in continental and oceanic terrains, and Cainozoic sediments on the continental blocks, by dredging and coring. This will help elucidate the Phanerozoic history of the area with emphasis on petroleum geology and plate tectonic hisory, and also the Cainozoic and especially Quaternary history with emphasis on plate tectonic history, and changes in climate and sedimentation patterns. Water column sampling is designed to provide more information about oceanographic controls on sedimentation. An additional aim is to sample manganese nodules in deep water to assess them as a potential resource, by the use of free-fall grabs. As a result of interest in the volcanic cones about 100
km of Hobart, mapped during the Tasmante cruise, which define major fishing grounds, two photographic profiles and one dredge are planned for there. The main sampling areas are discussed briefly below.

Tags: AU-TAS, Earth Sciences, GA Publication, Published_External, Record, marine, marine survey, structural geology
Organization: Geoscience Australia Data
Unapproachable 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
GSQ Hodgkinson Georgetown Block B Qld magnetic grid geodetic

Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.
This GSQ Hodgkinson Georgetown Block B Qld magnetic grid geodetic has a cell size of 0.00048 degrees (approximately 52m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1999 by the QLD Government, and consisted of 102900 line-kilometres of data at 200m line spacing and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, QLD, TMI, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 798, total magnetic intensity
Organization: Geoscience Australia Data
Land access and Indigenous engagement for Australian geoscience

The Exploring for the Future (EFTF) program is unmatched for the scale of geoscience data acquisition across northern Australia, covering 37 648 individual land parcels and 2.9 million km2. The scale of works has raised many new challenges for Geoscience Australia (GA) through the diverse range of field activities, and the numerous stakeholders from different social and cultural backgrounds, across multiple jurisdictions. Success of the program depended on the development and maintenance of a social licence to operate. This was broadly achieved for fieldwork activities through early engagement with stakeholders, including free, prior and informed consent. Here, we present two case studies of stakeholder engagement for facilitation of data collection: one focuses on broadscale, low-impact field activities associated with the AusAEM survey; and the other on Indigenous-focused engagement related to the Barkly Seismic Survey. Because of the complexity of project planning and managing such a large number of stakeholders, GA’s project governance team was expanded; it now includes a dedicated Land and Marine Access team and a commitment to adopt world-leading engagement practices. One practice is to consider impacts and benefits for all stakeholders—not just landholders—of field activities and data acquisition programs. This includes a plan for how the data are delivered back to the communities and stakeholders, and how information exchanges can be built into projects. The aim is for stakeholders to hold GA in the highest regard and understand the benefits to the Australian people, and ultimately their own communities, from the geoscientific data that GA produces.
Citation: Mouthaan, R., Buchanan, S. and Sweeney, M, 2020. Land access and Indigenous engagement for Australian geoscience. In: Czarnota, K., Roach, I., Abbott, S., Haynes, M., Kositcin, N., Ray, A. and Slatter, E. (eds.) Exploring for the Future: Extended Abstracts, Geoscience Australia, Canberra, 1–4.

Tags: AusAEM, Barkly Seismic Survey, EARTH SCIENCES, EFTF, Exploring for the Future, Published_External, Toolbox, communities, data value, field activities, governance, indigenous engagement, land access, land holders, social licence, stakeholder engagement, stakeholder engagement plans, traditional custodians
Organization: Geoscience Australia Data
Wernadinga 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
Kopperamanna 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
National ASTER Map MgOH group composition


Band ratio: B7/B8 Blue-cyan is magnesite-dolomite, amphibole, chlorite Red is calcite, epidote, amphibole
useful for mapping: (1) exposed parent material persisting through "cover"; (2) "dolomitization" alteration in carbonates - combine with Ferrous iron in MgOH product to help separate dolomite versus ankerite; (3) lithology-cutting hydrothermal (e.g. propyllitic) alteration - combine with FeOH content product and ferrous iron in Mg-OH to isolate chlorite from actinolite versus talc versus epidote; and (4) layering within mafic/ultramafic intrusives. useful for mapping: (1) exposed parent material persisting through "cover"; (2) "dolomitization" alteration in carbonates - combine with Ferrous iron in MgOH product to help separate dolomite versus ankerite; (3) lithology-cutting hydrothermal (e.g. propyllitic) alteration - combine with FeOH content product and ferrous iron in Mg-OH to isolate chlorite from actinolite versus talc versus epidote; and (4) layering within mafic/ultramafic intrusives. useful for mapping: (1) exposed parent material persisting through "cover"; (2) "dolomitization" alteration in carbonates - combine with Ferrous iron in MgOH product to help separate dolomite versus ankerite; (3) lithology-cutting hydrothermal (e.g. propyllitic) alteration - combine with FeOH content product and ferrous iron in Mg-OH to isolate chlorite from actinolite versus talc versus epidote; and (4) layering within mafic/ultramafic intrusives.


Tags: Earth Observations from Space, Earth Sciences, HVC_144626, NCI, Published_External, Remote Sensing, Satellite imagery, mineralogy
Organization: Geoscience Australia Data
Georgetown 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 Georgetown elevation grid geodetic is elevation data for the Georgetown, Qld, 1998/99. This survey was acquired under the project No. 666 for the geological survey of QLD. The grid has a cell size of 0.00042 degrees (approximately 45m).  This grid contains the ground elevation relative to the geoid for the Georgetown, Qld, 1998/99. 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 666, terrain
Organization: Geoscience Australia Data