AndreaBozzo/ceres-open-data-index huggingface dataset:
A century of earthquakes in the Dalton-Gunning region of New South Wales

The Dalton-Gunning region of New South Wales (34.5-35.0oS, 148.5- 149.5Â°E) is one of the more seismically active areas in Australia. Reports of felt earthquakes which occurred there in 1888, 1934 and 1984 were used to draw up isoseismal maps using the Modified Mercalli Scale (MM) of intensity. Magnitudes of 5.3, 5.6 and 4.4 were computed from the radius of perceptibility of each earthquake, and epicentral co-ordinates were assumed to be coincident with the centre of the highest isoseismals. These, and other earthquakes of magnitude 4.0 or greater that are known to have occurred since 1886, are tabulated to enable more accurate earthquake risk analyses to be undertaken for the region.  Extreme-value analysis of the hundred years of earthquake data yields magnitudes of 3.3, 4.6 and 5.8 for the 1, 10 and 100 year return periods in the region. These data are extrapolated to compute a return period of 120 years for a large, potentially damaging, earthquake of magnitude 6.0 or greater.

Tags: Earth Sciences, GA Publication, Journal, NSW, Published_External
Organization: Geoscience Australia Data
GSQ Isa Georgetown Block B Qld percent 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 0.00048 degrees (approximately 52m) and shows potassium element concentration of the Isa-Georgetown Block B, QLD, 2000, Prospectivity Plus Initiative in units of percent (or %). The data used to produce this grid was acquired in 2000 by the QLD Government, and consisted of 42035 line-kilometres of data at a line spacing between 200m and 400m, and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NCI, Published_External, QLD, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, spectrometry, survey 827
Organization: Geoscience Australia Data
Using neo-pentane to probe the source of gases in accumulations of the Browse and northern Perth basins

The origin of gases in Australia's Browse and Perth basins is deciphered using the molecular and isotopic compositions of individual C1-C5 hydrocarbons. As neo-pentane is strongly resistant to biodegradation and least influenced by thermal maturation (Boreham and Edwards, 2008), its carbon isotopic composition provides a powerful correlation tool for biodegraded and high maturity gases. Examples of how this tool has been applied to decipher the origin of gases in Australia's Browse and northern Perth basins are presented here.

Tags: Earth Sciences, Published_External
Organization: Geoscience Australia Data
Dondis 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
Investigating aquifer compartmentalisation in the Daly River Basin, Northern Territory

Groundwater in the Daly River Basin is predominantly extracted from the Oolloo Dolostone Aquifer. This aquifer supports agricultural water consumption, and is important for groundwater-dependent ecosystems, tourism, and indigenous culture. The Oolloo Aquifer is currently conceptualised as being continuous throughout the Daly River Basin. However, evidence of localised compartmentalisation is apparent in regional airborne electromagnetic and hydrogeological data. Neogene tectonism may have resulted in a northwest-southeast trending, strike-slip fault zone cutting across much of the Daly River Basin. Aquifer compartmentalisation has implications for recharge, discharge, groundwater-surface water interactions and the direction and velocity of groundwater flow.
We investigate whether structural compartmentalisation is affecting the Oolloo Aquifer using new and existing airborne electromagnetic and airborne magnetic data, borehole geophysical data and stratigraphy, ground magnetic resonance data, and hydrogeological and hydrogeochemical data. Geomorphic and morphotectonic mapping is also undertaken. These data allow us to characterise the Neogene fault system in the region, and to assess the permeability and transmissivity of structures that may be responsible for aquifer compartmentalisation. We also use these data to better understand groundwater-surface water connectivity and to assess the potential for managed aquifer recharge schemes to replenish extracted groundwater resources. Our results can be used to inform future groundwater modelling and water allocation planning and to underpin effective and efficient future groundwater use in the Daly River Basin area.
Presented at the 2018 Australasian Exploration Geoscience Conference  (AEGC 2018)

Tags: Aquifer compartmentalisation, Daly River Basin, NT, EARTH SCIENCES, Groundwater
Organization: Geoscience Australia Data
Mallacoota, Eastern Highlands, Vic, 1994/95 VIMP Survey (GSV3021) (P639), 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 Mallacoota, Eastern Highlands, Vic, 1994/95 VIMP Survey (GSV3021) (P639), radiometric line data, AWAGS levelled were acquired in 1994 by the VIC Government, and consisted of 33359 line-kilometres of data at 200m line spacing and 70m 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 639, thorium, uranium, vector
Organization: Geoscience Australia Data
Blyth 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-SA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (sc53-10)

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
Yilgarn Seismic Lines - Line 3 (P199913), 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 Yilgarn Seismic Lines - Line 3 (P199913) contains a total of 95 point data values acquired at a spacing of 280 metres. The data is located in WA and were acquired in 1999, under project No. 199913 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 199913
Organization: Geoscience Australia Data
Maffra Moe Traralgon Yarram 1:100,000 Infill (P199931), 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 Maffra Moe Traralgon Yarram 1:100,000 Infill (P199931) contains a total of 2436 point data values acquired at a spacing between 500 and 1000 metres. The data is located in VIC and were acquired in 1999, under project No. 199931 for None.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, VIC, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199931
Organization: Geoscience Australia Data
Hann River - Mount Mulgrave, Qld airborne geophysical survey, 1991 : operations report

The Australian Geological Survey Organisation (AGSO) flew an airborne geophysical survey
of 68181 line km covering the Hann River 1:250 000 map Sheet area with an extension east
onto the Cooktown 1:250 000 Sheet area, and the 1:100 000 Sheet area of Mount Mulgrave
with an extension east onto the Maytown 1:100 000 Sheet area.
This survey, which formed part of the National Geoscience Mapping Accord, was flown along
east-west flight lines 400 metres apart at an altitude of 100 metres above ground level. The
survey was flown in the period of June to October 1991.
The total magnetic intensity, gamma-ray spectrometric and digital elevation model data
collected during the survey, have been processed and are available for purchase. These data
are sold as digital point located data, grids and hardcopy maps, by the Australian Geological
Survey Organisation. Colour and greyscale pixel image maps are also available.

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Record, geophysics
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (sd49-10)

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
Darling Basin (Cobham Lake, White Cliffs), NSW, 1981 (P471), radiometric line data

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 Darling Basin (Cobham Lake, White Cliffs), NSW, 1981 (P471), radiometric line data were acquired in 1981 by the NSW Government, and consisted of 14751 line-kilometres of data at 3000m line spacing and 150m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, NSW, Published_External, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 471, thorium, uranium, vector
Organization: Geoscience Australia Data
Muthamul 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
Telfer River 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
Everett Creek 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-WA, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Perth 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
GSNSW Exploration NSW Area J Cobar Nymagee Part1 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 0.00049 degrees (approximately 50m) and shows potassium element concentration of the NSW DMR, Discovery 2000 Area J,Cobar-Nymagee, NSW, 1998 in units of percent (or %). The data used to produce this grid was acquired in 1998 by the NSW Government, and consisted of 46744 line-kilometres of data at 250m line spacing and 60m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NCI, NSW, Published_External, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, spectrometry, survey 741
Organization: Geoscience Australia Data
West Arunta Gravity Survey, 2010 (P201080), 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 West Arunta Gravity Survey, 2010 (P201080) contains a total of 12428 point data values acquired at a spacing between 1000 and 4000 metres. The data is located in NT and were acquired in 2010, under project No. 201080 for Northern Territory of Australia (Northern Territory Geological Survey).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NT, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 201080
Organization: Geoscience Australia Data
MIM Mt Isa Inlier 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 0.00042 degrees (approximately 45m) and shows uranium element concentration of the MIM Data from Mt Isa Inlier, QLD in units of parts per million (or ppm). The data used to produce this grid was acquired in 1990 by the QLD Government, and consisted of 676318 line-kilometres of data at a line spacing between 200m and 400m, and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NASVD, NCI, Published_External, QLD, U, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, rad, radiometrics, raster, spectrometry, survey 1029, uranium
Organization: Geoscience Australia Data
Nyngan - Narromine Detailed Gravity (P199160), 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 Nyngan - Narromine Detailed Gravity (P199160) contains a total of 8838 point data values acquired at a spacing between 50 and 250 metres. The data is located in NSW and were acquired in 1991, under project No. 199160 for Newcrest Mining Ltd.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, NSW, Published_External, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 199160
Organization: Geoscience Australia Data
Periodicity and Clustering in the Long-term Earthquake Record

Instrumentally observed earthquakes sequences typically show clusters of earthquakes interspersed with periods of quiescence. These ‘bursty’ sequences also have correlated inter-event times (‘long-term memory’). In contrast, elastic rebound theory forms the basis of the standard earthquake cycle model, and predicts large earthquakes to occur regularly through cycles of strain accumulation and release (periodicity). In this model the conditional probability of future large earthquakes is reduced immediately following fault rupture, and inter-event times are independent. Here we use the burstiness and memory coefficient metrics to characterize more than 100 long-term earthquake records. We find that large earthquake occurrence on the majority of Earth’s faults is weakly periodic and does not exhibit long-term memory; earthquakes occur more regularly than a random Poisson process although inter-event times are variable. In contrast, clustering occurs in slowly deforming regions (annual rates &lt; 2 x 10-4), and is not explained by elastic rebound theory.
Citation: Griffin, J. D., Stirling, M. W., &amp; Wang, T. (2020). Periodicity and clustering in the long‐term earthquake record. Geophysical Research Letters, 47, e2020GL089272. https://doi.org/10.1029/2020GL089272

Tags: EARTH SCIENCES, GEOLOGY, GEOPHYSICS, Published_External, clustering, earthquake hazard, elastic rebound theory, periodicity
Organization: Geoscience Australia Data