AndreaBozzo/ceres-open-data-index huggingface dataset:
Eocene and Oligocene calcareous nannofossils from the Great Australian Bight: evidence of significant reworking episodes and surface-water temperature changes

Eocene and Oligocene assemblages identified from carbonates dredged from the outer margin of the Ceduna Terrace in the Great Australian Bight, southern Australia, document two major Palaeogene reworking episodes with probable counterparts in the western central Pacific Ocean. The first episode (mid Eocene, ~43 .5 Ma) coincides with and is related to events affecting deposition on the Australian southern margin, which were initially controlled by a sudden change in seafloor spreading rate between Australia and Antarctica.  In this reworking episode, nannofossils of mainly late Cretaceous age (from the Naturaliste Plateau and/or the Eyre Terrace in the Great Australian Bight) were carried eastward and deposited by short-lived bottom currents flowing along the Australian southern margin. In the second episode, nannofossils of mainly Eocene and early Oligocene age were included in mid-upper Oligocene carbonates on the Australian western margin (Carnarvon Terrace and Perth Canyon) and in the Great Australian Bight. There was almost no supply of Eocene or lower Oligocene carbonate debris from onshore areas to the shelf (and deep sea) , due to the aridity of the Australian continent during the Oligocene and the lack of diagenetically suitable sediments onshore.  Reworked nannofossils in the upper Palaeogene shelf carbonates of western and southern Australia are therefore interpreted as coming from nearby shallow and intermediate oceanic sites during large-scale, late Palaeogene erosion in the southeast Indian Ocean.  The late Palaeogene erosive events, although intimately related to the Oligocene cooling, were probably tectonically triggered.  Some Oligocene assemblages from the Ceduna Terrace suggest cool surface waters. Others contain low-latitude species and suggest short episodes of warming during the mid to late Oligocene.  Warm surface water from northwestern Australia was introduced to southern Australia by an intermittent proto-Leeuwin Current starting in the mid Eocene; the effects of this surface current varied in intensity but generally petered out eastward along the southern margin . The warm-water influences were pronounced during at least two distinct short Oligocene episodes.

Tags: Earth Sciences, GA Publication, Journal, Published_External, SA, WA
Organization: Geoscience Australia Data
Surface Geology of Australia 1:5 million scale dataset

The Geology of Australia dataset documents the distribution and age of major stratigraphic, intrusive and medium to high-grade metamorphic rock units of onshore Australia. The data set was compiled to use at the 1:5,000,000 scale. The units distinguished/mapped mainly represent stratigraphic supergroups, regional intrusive associations and regional metamorphic complexes.
This dataset is a generalised version of the 1:2,500,000 scale Geology (AGSOCAT No. 314111)

Tags: AU, GIS, GIS Dataset, Geology, National, Published_External, geology
Organization: Geoscience Australia Data
Peniup 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-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Brewis 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-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
GSWA South Canning 2 Morris Cobb Uranium 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 uranium grid has a cell size of 0.00083 degrees (approximately 88m) and shows uranium element concentration of the Morris-Cobb, WA, 2010 (South Canning 2) in units of parts per million (or ppm). The data used to produce this grid was acquired in 2010 by the WA Government, and consisted of 134843 line-kilometres of data at 400m line spacing and 60m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, NCI, Published_External, U, WA, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, rad, radiometrics, raster, spectrometry, survey 1229, uranium
Organization: Geoscience Australia Data
Mount Bresnahan 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-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Streaky Bay - K equivalent concentration grid (AWAGS, no nasvd)

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 Geological Survey of South Australia commissioned the Gawler Craton Airborne Survey (GCAS) as part of the PACE Copper initiative. The airborne geophysical survey was flown over parts of the Gawler Craton in South Australia. The program was designed to capture new baseline geoscientific data to provide further information on the geological context and setting of the area for mineral systems. 
This radiometric potassium grid has a cell size of 0.0004 degrees (approximately 41m) and shows potassium element concentration of the Streaky Bay Airborne Magnetic Radiometric and DEM survey, SA, 2018 in units of percent (or %). The data used to produce this grid was acquired in 2018 by the SA Government, and consisted of 90670 line-kilometres of data at 200m line spacing and 60m terrain clearance. To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid.

Tags: AWAGS, Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NCI, Published_External, SA, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, spectrometry, survey 1308
Organization: Geoscience Australia Data
GSWA Lake Muir Doserate 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. 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 GSWA Lake Muir Doserate Grid Geodetic has a cell size of 0.00063 degrees (approximately 63m) and shows the terrestrial dose rate of the South West (Mt Barker and Lake Muir), WA, 2011. The data used to produce this grid was acquired in 2012 by the WA Government, and consisted of 126090 line-kilometres of data at a line spacing between 200m and 300m, and 50m 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 1245, thorium, uranium
Organization: Geoscience Australia Data
Cooktown 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
Cobar P5009 EXT 5 reduced to pole grid

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 magnetic grid has a cell size of 0.00039074 degrees (approximately 40m).The data are in nanoTesla (or nT). The data used to produce this grid was acquired in 2021 by the NSW Government, and consisted of 53617 line-kilometres of data at 200m line spacing and 60m terrain clearance. The data has had a variable reduction to the pole applied to centre the magnetic anomaly over the magnetised body. The VRTP processing followed a differential reduction to pole calculation up to 5th order polynomial. Magnetic inclination and declination were derived from the IGRF-11 geomagnetic reference model using a data representative date and elevation representative of the survey.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, RTP, TMI, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, reduced to the pole, survey 5009, total magnetic intensity
Organization: Geoscience Australia Data
Australian petroleum accumulations report. Browse Basin

This report summarises technical information on the petroleum and non-petroleum accumulations found in the Browse Basin up to 30 June 1991. The report contains a brief overview of the geology of the Browse Basin and describes the location and significance of all known petroleum accumulations.
The nature of the Browse Basin sequence, and the petroleum accumulations found to date, indicate that additional petroleum resources are likely to be discovered. The known petroleum accumulations are a major potential resource and highlight the potential of the basin to satisfy some of the nation's energy and industrial resource requirements in the next century.

Tags: AU, Earth Sciences, GA Publication, Published_External, Report, petroleum exploration, petroleum geology
Organization: Geoscience Australia Data
L197 Papunya Palaeovalley Seismic Reflection Survey, NT 2010

Geoscience Australia acquired the Papunya Seismic Reflection Survey in 2010. The survey involved the acquisition of high resolution seismic reflection data along a single 11.5km traverse (10GA-PA1). The purpose of the survey was to obtain information on key palaeovalley characteristics for potential groundwater studies. This dataset contains seismic data and images only, a full report on the results of the palaeovalley study can be found in GA Record 2012/09.
Raw data for this survey are available on request from clientservices@ga.gov.au

Tags: Published_External, Seismic Data, Seismology and Seismic Exploration, seismic reflection, seismic sections, seismic velocity
Organization: Geoscience Australia Data
Defining an active fault in the Australian intraplate context, with some examples from eastern Australia

Defining a neotectonic fault in the intraplate context is relatively straightforward - the fault must have hosted displacement in the current crusta stress regime. Defining an active fault is far more problematic, depending upon the recurrence of the fault (and nearby faults) and the return period being considered for hazard purposes. This article discusses the term "active" and provides some examples of faults from eastern Australia for emphasis.

Tags: AU, Article, Earth Sciences, External Publication, Published_External, earthquakes, geohazards, seismology
Organization: Geoscience Australia Data
Groundwater systems of the upper Darling-Baaka River floodplain, New South Wales

Output Type: Exploring for the Future Extended Abstract

Short Abstract: Communities and ecosystems along the Darling-Baaka River have been impacted by critical water shortages and water quality issues including high salinity, algal blooms, and fish kills due to declining surface water flows. The river is characterised by naturally highly variable flows and is the primary water source for the region, but extraction and a meteorological drying trend associated with climate change have caused declines in discharge of 53–73% since the advent of post-settlement agriculture and industry. Understanding of the spatial extent, quality, and useability of lower salinity groundwater within the surrounding Darling Alluvium, which could provide an alternative and potentially more sustainable water source, was previously limited. Here we present the findings of an integrated study combining modelled ground and airborne geophysical data, groundwater and surface water levels, hydrochemistry, lithology, and remote sensing data to delineate groundwater systems and understand the geological and hydrological controls on their occurrence. The resolution and breadth of datasets acquired and collated permit mapping of the key factors controlling occurrence and quality of groundwater aquifers, namely basement topography and hydrostratigraphy, groundwater-surface water dynamics, and inter-aquifer connectivity. On this basis the study area can be sub-divided into regions with distinctive aquifer distribution and quality, recharge mechanisms, and pressure gradients between aquifers. We also showed that the groundwater levels in the unconfined aquifer have declined, an expected outcome of the decline in discharge in the Darling-Baaka River which forms the primary recharge mechanism for the alluvial aquifers. These outputs have direct implications for key management questions including location and quantity of potentially useable groundwater, risk of saline groundwater up-coning or discharging to the river, and likelihood of groundwater extraction impacting river flows and groundwater dependent ecosystems.&nbsp;

Citation: Buckerfield, S., McPherson, A., Tan, K.P., Walsh, C., Buchanan, S., Kilgour, P., Suckow, A., Raiber, M., Symington, N. & Pincus, J., 2024. Groundwater systems of the Upper Darling-Baaka River Floodplain. In: Czarnota, K. (ed.) Exploring for the Future: Extended Abstracts. Geoscience Australia, Canberra. https://doi.org/10.26186/149718

Tags: Darling-Curnamona-Delamerian, EARTH SCIENCES, EFTF – Exploring for the Future, Groundwater resource assessment, Published_External, groundwater systems, upper darling
Organization: Geoscience Australia Data
Ballarat, VIC, 1992 (GSV2432) (P582), 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 Ballarat, VIC, 1992 (GSV2432) (P582), radiometric line data, AWAGS levelled were acquired in 1992 by the VIC Government, and consisted of 44570 line-kilometres of data at a line spacing between 200m and 400m, and 100m 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, VIC, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 582, thorium, uranium, vector
Organization: Geoscience Australia Data
South West Tasmania, Tas, 2001 (WTRMP Area D) (P824), 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 South West Tasmania, Tas, 2001 (WTRMP Area D) survey were acquired in 2000 by the TAS Government, and consisted of 13701 line-kilometres of data at 200m line spacing and 80m terrain clearance.

Tags: Australia, DEM, EARTH SCIENCES, Earth sciences, Elevation, GADDS2.0, Published_External, TAS, airborne digital data, geophysical survey, geophysics, line, survey 824, terrain, vector
Organization: Geoscience Australia Data
GSWA Kauring Merged 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 0.0002 degrees (approximately 21m) and shows potassium element concentration of the Kauring (Moora, Corrigin) merge, 2011-2012 in units of percent (or %). The data used to produce this grid was acquired in 2011 by the WA Government, and consisted of 229959 line-kilometres of data at 200m line spacing 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 1336
Organization: Geoscience Australia Data
Murray Basin Hydrogeological Project, progress report 9 for the half year ending 31 March 1983

During this period planning began for the second phase of theProject, a hydrogeological assessment of the Basin based on available data. The Steering Committee at its meeting on 2 December 1982 discussed ways in which the existing hydrogeological data might be presented, and later that month Bureau of Mineral Resources (BMR) hydrogeologist R.Evans visited the State Authorities to arrange ways of transferring hydrogeological data to BMR; work on the hydrogeological phase is scheduled to start in July 1983.
At BMR, C.M. Brown and A.E.Stephenson continued to compile 1:3/4 million scale geological maps, and prepared an outline of the bulletin on the geological synthesis; cartographer G Butterworth began the compilation and drafting of the 1:1 million geological map.
Members of the Steering Committee noted with regret the death on 9 January of one of their number, Mr Don Currey, Supervising Geologist of the State Rivers and Water Supply Commission. Mr Currey's contribution to the Project is recorded with appreciation.

Tags: Earth Sciences, GA Publication, Published_External, Record, hydrogeology
Organization: Geoscience Australia Data
Maranboy 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-NT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Woodforde 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
Drilling recommendations : Iron Blow area

This report is the result of a geological survey done in November, 1960, in conjunction with geophysicists of the Bureau of Mineral Resources. A separate geophysical report has been prepared (Skattebo1,1961).The aim of these surveys was to determine whether the Iron Blow would be a favourable target for diamond drilling, and, if so, to locate the best drilling sites.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record
Organization: Geoscience Australia Data