AndreaBozzo/ceres-open-data-index huggingface dataset:
Montague Is totalcount grid

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. The terrestrial dose rate grid is derived as a linear combination of the filtered K, U and Th grids. A low pass filter is applied to this grid to generate the filtered terrestrial dose rate grid.
This Montague Is totalcount grid has a cell size of 0.00167 degrees (approximately 182m) and shows the terrestrial dose rate of the Prince Regent, Camden Sound, Montague Sound, WA, 1994. The data used to produce this grid was acquired in 1994 by the WA Government, and consisted of 61497 line-kilometres of data at 800m line spacing and 100m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NASVD, NCI, Published_External, Th, U, WA, airborne digital data, dose, dose rate, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, rate, spectrometry, survey 614, thorium, uranium
Organization: Geoscience Australia Data
GSQ Maryborough Gympie magnetic rtp vd1 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 Maryborough Gympie magnetic rtp vd1 grid geodetic is a first vertical derivative of the Total Magnetic Intensity grid for the Maryborough, Qld, 2005.
This grid has a cell size of 0.00083 degrees (approximately 88m). The grid has units of nanoTesla per km (or nT/km). The data used to produce the TMI grid was acquired in 2005 by the QLD Government, and consisted of 51044 line-kilometres of data at 400m line spacing and 80m terrain clearance. A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid.

Tags: 1vd, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, QLD, airborne digital data, first vertical derivative, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 1094
Organization: Geoscience Australia Data
The Argo Abyssal Plain : A Proposal to Drill Reflecting Interfaces within Oceanic Crust

The presence of dipping reflectors and zones of high reflectivity in oceanic crust are beingincreasingly recognised on modern seismic reflection data. Some workers have related thereflection characteristics of oceanic crust and its associated Moho to spreading rate - slow-spreading crust is proposed to have the richest variety of reflections, but with a poorly imagedMoho, where as fast-spreading crust is suggested to be largely transparent but with a strongreflection Moho. The various reflection characteristics of slow-spreading crust have beenassociated with both tectonic and/or magmatic origins, but whatever their causes, they areclearly important to understanding the accretion processes that occur at spreading ridges.Although imaging of the seismic characteristics and reflector geometries of oceanic crust hasimproved dramatically in recent years, without direct information on the nature of thereflecting zones it will not be possible to uniquely constrain their origins and to test competing models.
Recent AGSO deep-seismic data over the Argo Abyssal Plain off northwest Australia provideexcellent imaging of both strong crustal reflections and an associated Moho from the world'soldest (Late Jurassic) preserved oceanic crust. This area represents an ideal location at whichto test the origin of a variety of oceanic crustal reflectors, and thus could make some majoradvancements in our understanding of spreading ridge accretion processes. The proposedsites, in conjunction with the nearby Site 765, will provide a unique insight into the nature,origin, variability and deformation of the oceanic crust in the region. Although the chilling willpush the capabilities of the Joides Resolution to the limit, this is likely to be the case for anysites targeting such objectives within oceanic crust.
The main general objectives of the proposal are to:
1.Test models for the formation (tectonic and/or magmatic) of major crustal reflectionfeatures and zones in oceanic crust, and determine their significance to crustal accretionprocesses at spreading ridges;
2.Determine the cause of the reflectivity of the upper part of oceanic basement and itsimplications for the composition and physical properties of the crust;
3. Examine the thermal and mechanical evolution of oceanic crust as it ages and moves awayfrom the spreading ridge, and, in particular, the nature and cause of any late-stagereactivation of primary structures.

Tags: Earth Sciences, GA Publication, Published_External, Record, geology, marine, structural geology
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Wanna (sh52-02)

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
AUSGeoid98 v.1.0 data files:  (sc53-09)

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
Outer Darwin Harbour Shallow Water Sediment Survey 2016: Grain size data for seabed sediments

A benthic sediment sampling survey (GA0356) to the nearshore areas of outer Darwin Harbour was undertaken in the period from 03 July to 14 September 2016. Partners involved in the survey included Geoscience Australia (GA), the Australian Institute of Marine Science (AIMS) and the Department of Environment and Natural Resources within the Northern Territory Government (NT DENR) (formerly the Department of Land and Resource Management (DLRM)). This survey forms part of a four year (2014-2018) science program aimed at improving knowledge about the marine environments in the regions around Darwin and Bynoe Harbour’s through the collection and collation of baseline data that will enable the creation of thematic habitat maps to underpin marine resource management decisions.  This project is being led by the Northern Territory Government and is supported by the INPEX-led Ichthys LNG Project, in collaboration with - and co-investment from GA and AIMS. The program builds upon an NT Government project (2011-2011) which saw the collection of baseline data (multibeam echosounder data, sediment samples and video transects) from inner Darwin Harbour (Siwabessy et al. 2015).
Radke, L., Smit, N., Li, J., Nicholas, T., Picard, K. 2017. Outer Darwin Harbour Shallow Water Sediment Survey 2016: GA0356 – Post-survey report. Record 2017/06. Geoscience Australia, Canberra. http://dx.doi.org/10.11636/Record.2017.006
This research was funded by the INPEX-led Ichthys LNG Project via the Northern Territory (NT) Government Department of Land Resource Management (DLRM) (now the Department of Environment and Natural Resources (DENR)), and co-investment from Geoscience Australia (GA) and Australian Institute of Marine Science (AIMS). We are grateful to the following agencies for providing boats and staff, and to the following personal for help with sample acquisition: NT DENR (Danny Low Choy and Rachel Groome), NT Fisheries (Wayne Baldwin, Quentin Allsop, Shane Penny, Chris Errily, Sean Fitzpatrick and Mark Grubert), NT Parks and Wildlife (Ray Chatto, Stewart Weorle, and Luke McLaren) and the Larrakia Rangers (Nelson Tinoco, Kyle Lewfat, Alan Mummery and Steven Dawson). Special thanks to the skippers Danny Low Choy, Wayne Baldwin, Stewart Weorle and Luke McLaren whose seamanship strongly guided the execution of this survey. AIMS generously allowed use of the aquarium and laboratory at the Arafura Timor Sea Research Facility, and Simon Harries and Kirsty McAllister helped with the setup. We would also like to acknowledge and thank GA colleagues including: Matt Carey, Ian Atkinson and Craig Wintle (Engineering and Applied Scientific Services) for the organisation of field supplies and the design of the new core incubation set-up. 
This dataset is published with the permission of the CEO, Geoscience Australia

Tags: Earth Sciences, Marine, Marine baselines, Marine survey, Published_External, Seabed, Sedimentology
Organization: Geoscience Australia Data
Mawson, 1961: Field Notebook 3

The Antarctic field notebooks contain the geological observations recorded by Bureau of Mineral Resources geologists during their trips to Antarctica between 1948 – 1980s. Files include a scanned copy of the original handwritten field notebook, transcription of the notebook’s contents transcribed by volunteers and validated by an experienced geologist, and a csv file of the transcription with Text Encoding Initiative (TEI) tags. The original Antarctic field notebooks are held at the N.H. (Doc) Fisher Geoscience Library at Geoscience Australia, Canberra.

Tags: Antarctica, Earth Sciences, Geology, Notebook, Published_External
Organization: Geoscience Australia Data
Collaborative science to secure Australia's precious groundwater resources

Groundwater is a finite and largely hidden resource. Enhancing scientific understanding of groundwater systems improves decisions about its planning, allocation and use. This benefits all Australians through improved water management.
Australia’s groundwater resources underpin billions of dollars of economic activity, provide safe and reliable drinking water for millions of people, and sustain life and cultural values across the country. Sustainably managing our critical groundwater resources is vital to improving water security and protecting the environment.
Geoscience Australia and the Commonwealth Scientific and Industrial Research Organisation (CSIRO) collaborate on initiatives funded by the Australian Government. We work together to deliver innovative solutions to nationally significant issues affecting Australia’s groundwater resources.
With world‑class expertise and facilities, we are at the forefront of groundwater science. Our combined hydrogeological capabilities are best applied to regional and national-scale challenges that extend beyond the remit of individual jurisdictions or private industry.
This publication highlights the scientific approaches, technologies, and methods that we apply to better understand and characterise Australia’s groundwater and includes case studies that demonstrate the unique value of our collaboration.


Tags: CSIRO, Collaboration with CSIRO, Geoscience Australia, Groundwater hydrology, Published_External, groundwater, groundwater collaboration, groundwater research
Organization: Geoscience Australia Data
Continental scale hydrogeochemistry: Groundwater system processes and prediction of groundwater chemistry through water-rock interactions across Australia

As the driest inhabited continent, Australia’s groundwater resources are essential to sustain our communities, food production, industry and environment. Groundwater hydrogeochemistry allows us to identify the processes controlling groundwater movement and quality, however, to date no integrated national spatial analysis of water-rock interactions has been conducted. As part of the Australian Government Exploring for the Future Program, this study aims to integrate geological and hydrogeochemical datasets to use water-rock interactions as a tool to identify groundwater system processes and predict groundwater composition and quality across Australia.
This study uses a new spatial analysis portal (GA 2019) to combine new national hydrogeochemistry datasets (CSIRO 2019, BOM 2019) with updated solid geology, cover material and mineral thermodynamics datasets to identify dominant water-rock interactions spatially. Additionally, machine learning was used for predictive modelling of rock geochemistry (Wilford 2018) and integrated with hydrogeochemistry data for prediction of groundwater chemistry.
The results of this study show groundwater chemistry across Australia is largely controlled by water-rock interactions with solid geology and cover materials. Groundwater chemistry that does not reflect geology indicates groundwater flow-paths and system dynamics. The consistency of the Spatial and hydrogeochemical relationships between groundwater and geology show that water-rock interactions can be used to predict groundwater chemistry. Machine learning applied to detailed environmental datasets has been upscaled to predict geochemistry at a national level. Integrating this predicted geochemistry with water-rock interactions allows a consistent approach for interpreting groundwater processes and predicting groundwater chemistry.
This study establishes continent-wide spatial relationships between chemistry of groundwater and rocks. This demonstrates the utility of nationally consistent datasets and hydrogeochemistry to understand groundwater system processes and predict groundwater composition and quality. The applications of this work include targeting groundwater sampling of existing bores, planning of new groundwater bores and geological sampling for geochemical endmembers to benefit community water supplies, mineral exploration and environmental monitoring.
Presented at the 2019 Australasian Groundwater Conference (AGC 2019)

Tags: EARTH SCIENCES, EFTF - Exploring for the Future, Published_External, groundwater system, hydrogeochemistry, water-rock interactions
Organization: Geoscience Australia Data
Hodgkinson-Georgetown Block A, QLD, 1999, Prospectivity Plus Init. (P797), elevation line data

The Digital Elevation Model represents ground surface topography between points of known elevation. The elevation data was calculated using the altimeters and Global Positioning System (GPS) sensor used for the benefit of airborne magnetic and radiometric data on the same survey. The elevation is the height relative to the Australian Height Datum GDA94 (AUSGEOID09). The processed elevation 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 Hodgkinson-Georgetown Block A, QLD, 1999, Prospectivity Plus Init. survey were acquired in 1999 by the QLD Government, and consisted of 93258 line-kilometres of data at a line spacing between 200m and 400m, and 80m terrain clearance.

Tags: Australia, DEM, EARTH SCIENCES, Earth sciences, Elevation, GADDS2.0, Published_External, QLD, airborne digital data, geophysical survey, geophysics, line, survey 797, terrain, vector
Organization: Geoscience Australia Data
Browne 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
Detachment faulting and bimodal magmatism in the Palaeoproterozoic Willyama Supergroup, south-central Australia : keys to recognition of a multiply deformed Precambrian metamorphic core complex

The multiply deformed (D1-D3) Paleoproterozoic Willyama Supergroup in south-central Australia incorporates upper and lower c. 1700 Ma metasedimentary sequences with contrasting early tectonothermal histories that invite comparisons with the metamorphic core complexes and younger extensional orogens of western North America and Europe. A detachment surface of D1 age separating these two sequences has the deduced geometry of an extensional shear zone, juxtaposing rocks subjected to bimodal magmatism, sillimanite- to granulite-grade migmatization, and Na-Fe metasomatism against a less intensely metamorphosed upper plate lacking both migmatites and bimodal magmatism. Synextensional metamorphism took place under low-pressure-high-temperature conditions, producing regionally extensive andalusite- and sillimanite-bearing mineral assemblages before further high-grade metamorphism accompanying D2 recumbent folding and crustal thickening. D2 folding locally inverted the original D1 thermal structure so that sillimanite-grade lower plate rocks now lie structurally above andalusite-grade rocks of the upper plate, rendering recognition of the original detachment surface and associated thermal structure difficult. U-Pb dating of synextensional metabasites intruded into lower plate rocks just below the detachment surface indicate that extension and related bimodal magmatism peaked around 1690-1670 Ma, some 70-90 Ma earlier than the 1600-1590 Ma age previously inferred for the onset of regional deformation and low-P-high-T metamorphism. A regionally extensive redox boundary associated with the detachment surface served as the locus for several important mineral deposits.

Tags: AU-NSW, AU-SA, Earth Sciences, External Publication, Published_External, Scientific Journal Paper
Organization: Geoscience Australia Data
The Cambrian trilobite Redlichia; organization and generic concept

The main purpose of this paper is to describe the morphology of a single genus of trilobite (Redlichia) and to discuss, and settle, the uncertainties of its stratigraphical and geographical distribution. Redlichia is the nominate genus of a family and a superfamily (suborder) and is consequently of paramount taxonomic significance. It is in its general organization related to the olenellids, but differs from them, as do the majority of trilobites, in having well-developed cephalic sutures. This paper was originally prepared in 1950-52; subsequently additions have been made in an attempt to exploit the wealth of new information published on trilobites between 1953 and 1957.

Tags: AU, Bulletin, Earth Sciences, GA Publication, Published_External
Organization: Geoscience Australia Data
Northeast Coalfields (ECCP) (P197651), 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 Northeast Coalfields (ECCP) (P197651) contains a total of 739 point data values acquired at a spacing of 600 metres. The data is located in TAS and were acquired in 1976, under project No. 197651 for Mineral Resources Tasmania (MRT).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, TAS, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 197651
Organization: Geoscience Australia Data
Kidson Area A, WA, 1996 (P771), 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 Kidson Area A, WA, 1996 (P771), radiometric line data, AWAGS levelled were acquired in 1996 by the WA Government, and consisted of 128005 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, WA, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 771, thorium, uranium, vector
Organization: Geoscience Australia Data