AndreaBozzo/ceres-open-data-index huggingface dataset:
Hot rocks in a cold place: high sub-glacial heat flow in east Antarctica

Numerical models are the primary predictive tools for understanding the dynamic behavior of the Antarctic ice sheet. But a key boundary parameter - the magnitude of sub-glacial heat flow - is controlled by geological factors and remains poorly constrained. We show that variations in the abundance and distribution of heat producing elements (U, Th and K) within the Antarctic continental crust give rise to regional sub-glacial heat flows as much as 2-3 times greater than previously assumed in ice modeling studies. We also recognize that, prior to the breakup of Gondwana, much of the East Antarctic continental crust was contiguous with southern Australia where extensive high-heat producing Proterozoic-aged rocks, and correspondingly elevated regional heat flows, are well documented. Such crustal rocks almost certainly extend beneath the modern east Antarctic ice sheet. This means that high sub-glacial heat flows are likely to be a regional phenomenon. Such fundamental geological controls on sub-glacial heat flow must be considered in accurately modelling ice dynamics, permitting more refined predictions of ice mass balance and sea level change.

Tags: AQ, Antarctic data, Earth Sciences, External Publication, Published_External, Scientific Journal Paper, antarctica, geothermal
Organization: Geoscience Australia Data
The energy resource potential of the Carrara Sub-basin revealed by new stratigraphic drilling

NDI Carrara 1 is a deep stratigraphic drill hole completed in 2020 as part of the MinEx CRC National Drilling Initiative (NDI) in collaboration with Geoscience Australia and the Northern Territory Geological Survey. It is the first test of the Carrara Sub-Basin, a depocentre newly discovered in the South Nicholson region based on interpretation from seismic surveys (L210 in 2017 and L212 in 2019) recently acquired as part of the Exploring for the Future program. The drill hole intersected approximately 1120 m of Proterozoic sedimentary rocks unconformably overlain by 630 m of Cambrian Georgina Basin carbonates. Continuous cores recovered from 283 m to a total depth of 1750 m provide samples of the highest quality for a comprehensive geochemical program designed to inform on the energy and mineral prospectivity of the Carrara Sub-basin. Total Organic Carbon (TOC) contents from Rock-Eval pyrolysis of the Cambrian and Proterozoic sections demonstrate the potential for several thick black shales as source rocks and unconventional plays. Evidence for retained hydrocarbons included bituminous oil stains in centimetre-scale vugs within the Cambrian Georgina Basin and several oil bleeds within the Proterozoic section. The latter also contains surface gas with up to 2% methane concentrations measured within carbonaceous mudstones. Geochemical analyses of hydrocarbon shows highlight the occurrence of several petroleum systems operating in this frontier region. The results at NDI Carrara 1 offer the promise of a new exciting resource province in northern Australia.

Tags: Carrara Sub-basin, EARTH SCIENCES, Exploration Geochemistry, Exploring for the Future, Isotope Geochemistry, MinEx Cooperative Research Centre (CRC), NDI Carrara 1, Organic Geochemistry, Petroleum System, Published_External, South Nicholson Basin
Organization: Geoscience Australia Data
Barton 1:50 000 topographic map

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

Tags: 50K scale, AU-NT, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Kurnalpi Detailed - Eastern Goldfields Gravity (P199704), 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 Kurnalpi Detailed - Eastern Goldfields Gravity (P199704) contains a total of 110 point data values acquired at a spacing of 3000 metres. The data is located in WA and were acquired in 1997, under project No. 199704 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 199704
Organization: Geoscience Australia Data
Kalgoorlie 1:250 000 GIS Dataset

This data is part of the series of maps that covers the whole of Australia at a scale of 1:250 000 (1cm on a map represents 2.5km on the ground) and comprises 513 maps. This is the largest scale at which published topographic maps cover the entire continent. 
Data is downloadable in various distribution formats.

Tags: 250K scale, AU-WA, Earth Sciences, GIS Dataset, Published_External, dataset, topography
Organization: Geoscience Australia Data
MRTAS Mathinna 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 0.0005 degrees (approximately 49m) and shows thorium element concentration of the NETGOLD - Mathinna, Tas , 1990 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1990 by the TAS Government, and consisted of 1680 line-kilometres of data at 150m line spacing and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, NCI, Published_External, TAS, Th, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, rad, radiometrics, raster, spectrometry, survey 782, thorium
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (se56-10)

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
Precambrian hydrocarbons in the McArthur Basin, NT

An oily liquid and several types of bitumen were found in the silicified porous carbonate-rich Looking Glass Formation, in a BMR stratigraphic hole drilled in the Proterozoic McArthur Basin in 1979. The bitumen is accompanied by sulphides (including pyrite, chalcopyrite, and marcasite), and has been trapped beneath a thin claystone which is present at the unconformity at the base of the Balbirini Dolomite. It is thought to be a residue from oil generated lower in the McArthur Group or in the Tawallah Group and then trapped in the Beetle Spring Anticline. Proterozoic strata as old as the McArthur Group (ca. 1600 m.y.) should not be overlooked in the search for hydrocarbons in Australia.

Tags: Earth Sciences, GA Publication, Journal, NT, Published_External
Organization: Geoscience Australia Data
Seamounts, Canyons and Reefs of the Coral Sea bathymetry survey (FK200802/GA0365)

This resource includes bathymetry data acquired during the Seamounts, Canyons and Reefs of the Coral Sea bathymetry survey using Kongsberg EM302 and EM710 multibeam sonar systems. The Seamounts, Canyons and Reefs of the Coral Sea bathymetry survey was led by Dr. Brendan Brooke and Dr. Scott Nichol (Geoscience Australia) with a team of scientists from Geoscience Australia, James Cook University, The University of Sydney, University of Tasmania, University of Wollongong, Queensland Museum and Parks Australia aboard the Schmidt Ocean Institute (SOI) RV Falkor from the 2nd to the 30th of August 2020.
The primary objective of the survey to collect and analyze geological and biological data of the outer, deep-water edge of the Great Barrier Reef and platform reefs in the adjacent Coral Sea Marine Park. R/V Falkor’s multibeam systems were used to map the structure of the reefs, canyons, and seamounts, illuminating their formative processes. The datasets acquired will greatly improve understanding of the sedimentary processes that influence biodiversity patterns, including how canyons and platform reefs may provide a pathway for sediment to travel from coastal and shelf water to deep filter feeders. The deep and irregular canyon and platform-reef topography likely leads to direct upwelling of nutrient-rich deep waters. 
This dataset contains a 64m and a 16m, for water depths shallower than 2560m, resolution 32-bit geotiff of the Seamounts, Canyons and Reefs of the Coral Sea survey area produced from the processed EM302 and EM710 bathymetry data combined.
This dataset is not to be used for navigational purposes.
This dataset is published with the permission of the CEO, Geoscience Australia.

Tags: AusSeabed, Bathymetric grids, Bathymetry, EARTH SCIENCES, HVC_144641, Marine, Marine Data, Multibeam, Published_External
Organization: Geoscience Australia Data
Boulia 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
Three large intraplate earthquakes near Tennant Creek, Northern Territory, on 22 January 1988

Following a yearlong series of foreshocks, extensive surface faulting accompanied an extraordinary sequence of earthquakes in the Precambrian shield of central Australia on 22 January 1988. The mainshock sequence included earthquakes of magnitude Ms 6.3, 6.4, and 6.7.  Hundreds of aftershocks were recorded in the epicentral area in the first few days after the mainshocks, and the sequence continued into 1991 ; the largest aftershock occurred nearly 9 hours after the third large mainshock.  The three largest earthquakes were felt over more than one-quarter of the land surface of Australia, and in high-rise buildings up to 2000 km from the epicentre. A buried natural-gas pipeline was shortened by 1 m at the surface rupture, and buildings in the town of Tennant Creek, 30 km to the north-northeast, sustained minor damage.  Focal mechanism solutions indicate thrusting for the first and third large earthquakes, and a combination of thrust and strike-slip motion for the second. Ground deformation and offsets along roads, fences, and the pipeline also indicate mainly thrust-faulting. The mean azimuth of the P-axes for the first three focal mechanisms is N31Â°E, in close agreement with the maximum principal stress direction determined from in-situ stress measurements made in a nearby gold mine.

Tags: Earth Sciences, GA Publication, Journal, NT, Published_External
Organization: Geoscience Australia Data
The Iverian, a proposed Late Cambrian Stage, and its subdivision in the Burke River Structural Belt, western Queensland

The Iverian Stage is proposed for the concept of a post-Idamean/pre-Payntonian, Late Cambrian, interval in the eastern Georgina Basin, western Queensland.  Designation and definition of this stage completes the local stadial biochronological scheme for the Upper Cambrian platform sequences of Australia and conterminous regions.  Lithostratigraphic and biostratigraphic material diagnostic of this stage in its type area is integrated and correlated within Australia and globally.  In the interests of simplification and clarification, it is suggested that a generic zone concept be overlaid on the current assemblage-zone biostratigraphic scheme for the Iverian Stage.

Tags: Earth Sciences, GA Publication, Journal, Published_External, QLD
Organization: Geoscience Australia Data
Isa-Georgetown Block A,QLD, 2000, Prospectivity Plus Initiative (P826), 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 Isa-Georgetown Block A,QLD, 2000, Prospectivity Plus Initiative survey were acquired in 2000 by the QLD Government, and consisted of 34868 line-kilometres of data at a line spacing between 200m and 200m, 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, Published_External, QLD, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 826, vector
Organization: Geoscience Australia Data
GSWA Newdegate Ravensthorpe Bremer Bay Merge ppm 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 85m) and shows uranium element concentration of the Newdegate-Ravensthorpe-Bremer Bay merge, 1999-2005 in units of parts per million (or ppm). The data used to produce this grid was acquired in 1999 by the WA Government, and consisted of 93624 line-kilometres of data at a line spacing between 300m and 400m, and 70m 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 1332, uranium
Organization: Geoscience Australia Data
Moranbah 1999 gravity Survey, Qld (P199942), 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 Moranbah 1999 gravity Survey, Qld (P199942) contains a total of 638 point data values acquired at a spacing between 50 and 100 metres. The data is located in QLD and were acquired in 1999, under project No. 199942 for Shell Australia Pty Ltd.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, QLD, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199942
Organization: Geoscience Australia Data
NTData (digital geology of the Northern Territory), Newcastle Waters

These data are a digital representation of information depicted on printed maps from the Australia 1:250 000 Geological Series produced by AGSO and the Northern Territory Geological Survey (NTGS) between 1963 and 1998.  The data are in a tiled format 
and are not seamless, although basic edgematching has been done where possible.  Tiles are arranged according to the standard Australian 1:250 000 sheet breakup.  The complete dataset is comprised of the 90 tiles covering the Northern Territory.

Tags: AU-NT, Earth Sciences, GIS Dataset, Published_External, Regional, dataset, geology
Organization: Geoscience Australia Data
Geochemical map of Australia (First Edition) - K (potassium) series

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

Tags: AU, Earth Sciences, Geoscience, Published_External, Thematic Map, geochemistry, mapping, regolith
Organization: Geoscience Australia Data
Refining the Moho across the Australian continent

In recent years there has been a considerable expansion of deployments of portable seismic stations across Australia, which have been analysed by receiver function or autocorrelation methods to extract estimates of Moho depth. An ongoing program of full-crustal reflection profiles has now provided more than 25,000 km of reflection transects that have been interpreted for Moho structure. The Moho dataset is further augmented by extensive marine reflection results. These new data sources have been combined with earlier refraction and receiver function results to provide full continental coverage, though some desert areas remain with limited sampling. 
The dense sampling of the Moho indicates the presence of rapid changes in Moho depth and so the Moho surface has been constructed using an approach that allows different weighting and spatial influence depending on the nature of the estimate. The inclusion of Moho results from gravity inversion with low weighting helps to resolve the continent-ocean transition and to provide additional control in the least sampled zones. The refined distribution indicates the presence of widespread smaller-scale variations in Moho structure. Strong lateral contrasts in crustal thickness remain, but some have become more subdued with improved sampling of critical areas. The main differences from earlier results lie in previously poorly sampled regions around the Lake Eyre Basin, where additional passive seismic results indicate somewhat thicker crust though still witha strong contrast in crustal thickness to the cratonic zone to the west.
Appeared in Geophysical Journal International, January 2023

Tags: AusArray, Australia, Body waves, Controlled source seismology, Crustal Structure, EFTF – Exploring for the Future, Published_External, Seismology and seismic exploration
Organization: Geoscience Australia Data
BMR Annual Report

Although the Bureau of Mineral Resources, Geology and Geophysics was created in 1946, it did not compile an annual report until 1971.  The series continued under this title up to 1976, all but the last providing summaries of annual activities by broad sections (functions and organisation, field operations, laboratory studies, observatories, and so on).  The 1976 Annual Report adopted a shorter format, a general outline of the role, objectives and programs of the Bureau being followed by a selection of short articles on the "more innovative and conclusive activities" of that year.  This new format was retained in 1977 when a title change was made and the annual summaries became known as BMR Yearbooks.

Tags: Annual Report, Earth Sciences, GA Publication, Published_External
Organization: Geoscience Australia Data
Receiver Function volumetric model of north-eastern Northern Territory and north-western Queensland

This model is a volumetric representation of receiver function analysis based on common conversion point (CCP) profiles created every 50 km in North-South and East-West directions below the AusArray network (Gorbatov et al., 2020), combining them into one 3D image. The model bounds are: (-21.74, 132.52) - (-17.30, 141.46), geographic projection EPSG:28353. The model file is distributed in ASCII GoCad stratigraphic grid format (SGrid) where units are longitude (meters), latitude (meters), depth (meters) and value of receiver function amplitude.

Geoscience Australia’s Exploring for the Future program provides precompetitive information to inform decision-making by government, community and industry on the sustainable development of Australia's mineral, energy and groundwater resources. By gathering, analysing and interpreting new and existing precompetitive geoscience data and knowledge, we are building a national picture of Australia’s geology and resource potential. This leads to a strong economy, resilient society and sustainable environment for the benefit of all Australians. This includes supporting Australia’s transition to a low emissions economy, strong resources and agriculture sectors, and economic opportunities and social benefits for Australia’s regional and remote communities. The Exploring for the Future program, which commenced in 2016, is an eight year, $225m investment by the Australian Government.

Tags: AusArray, EFTF – Exploring for the Future, Published_External, Receiver Function, Seismology and Seismic Exploration
Organization: Geoscience Australia Data
Weimby 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-NSW, AU-VIC, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data