AndreaBozzo/ceres-open-data-index huggingface dataset:
Ferricretes and deep weathering profiles of the Puzzler Walls, Charters Towers, north Queensland

The Charters Towers district in semi-arid tropical north Queensland has large areas of transported and residual cover.  It is host to several major gold and base-metal deposits and has a long history of mineral exploration, but there have been few studies of its regolith. As future exploration will target mineralisation under cover, an understanding of the regolith is essential for interpretation of geochemical and geophysical data. Transported regolith presents further complications.  The Puzzler Walls, about 10 km east of Charters Towers, are a group of mesas capped by siliceous and ferruginous duricrusts developed on thick units of deeply weathered Tertiary sediments and Palaeozoic granitoids. The granitoids host mesothennal quartz-vein type gold mineralisation, commonly with associated sulphides, particularly galena.  Analysis of ferruginous material from the mesas reveals two main types of iron accumulations: an older ferruginous gravel developed from the weathering of granodiorite, and a younger nodular ferricrete overlying Tertiary/Quaternary sediments. These materials are distinguished on the basis of their position in the landscape, micromorphology (petrology), geochemistry, and mineralogy.  The older (Tertiary?) ferricretes have developed in situ on the granodiorite. They consist of ferruginous aggregates of the underlying mottled saprolite, formed by the relative accumulation of iron, as other, more soluble, elements were leached out. The younger (Tertiary-Quaternary?) nodular ferricretes consist of reworked or transported iron nodules coated by several generations of goethite rinds. These nodular ferricretes are interpreted as having formed by the accumulation of iron, precipitated from groundwater on valley sides or oxidation fronts.  The geochemistry of both ferricrete types reveals enrichment of transition metals, some rare-earth elements, and elements commonly associated with gold mineralisation in the Charters Towers district (Pb, Sb, As). The last may be useful pathfinders in exploration. It still needs to be established whether this enrichment results from proximity to underlying mineralisation .

Tags: Earth Sciences, GA Publication, Journal, Published_External, QLD
Organization: Geoscience Australia Data
Miles 1:100 000 topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

Tags: 100K scale, AU-QLD, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Southern Yilgarn (Hyden, Southern Cross), WA, 2004 (P1066), 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 Southern Yilgarn (Hyden, Southern Cross), WA, 2004 (P1066), radiometric line data, AWAGS levelled were acquired in 2004 by the WA Government, and consisted of 62585 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 1066, thorium, uranium, vector
Organization: Geoscience Australia Data
Wonga Creek 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
Pyramid 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: AU-WA, Orthophoto Map, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Mount Brockman 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
Evans Head (Beach Sands Project), NSW, 1975 (P424), 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 Evans Head (Beach Sands Project), NSW, 1975 survey were acquired in 1975 by the NSW Government, and consisted of 1286 line-kilometres of data at 400m line spacing 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, NSW, Published_External, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 424, vector
Organization: Geoscience Australia Data
North-East Tasmania, Tas, 2007 (P1143), 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 North-East Tasmania, Tas, 2007 (P1143), radiometric line data, AWAGS levelled were acquired in 2007 by the TAS Government, and consisted of 51969 line-kilometres of data at 200m 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, TAS, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 1143, thorium, uranium, vector
Organization: Geoscience Australia Data
Coen 1:250 000 topographic map

This map is part of the series that covers the whole of Australia at a scale of 1:250 000 (1cm on a map represents 2.5 km on the ground) and comprises 513 maps. This is the largest scale at which published topographic maps cover the entire continent. Each standard map covers an area of 1.5 degrees longitude by 1 degree latitude or about 150 kilometres from east to west and 110 kilometres from north to south. There are about 50 special maps in the series and these maps cover a non-standard area. Typically, where a map produced on standard sheet lines is largely ocean it is combined with its landward neighbour. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours (interval 50m), localities and some administrative boundaries. The topographic map and data index shows coverage of the sheets. Product Specifications Coverage: The series covers the whole of Australia with 513 maps. Currency: Ranges from 1995 to 2009. 95% of maps have a reliability date of 1994 or later. Coordinates: Geographical and either AMG or MGA (post-1993) Datum: AGD66, GDA94, AHD. Projection: Universal Traverse Mercator (UTM) Medium: Paper, flat and folded copies.

Tags: 250K scale, AU-QLD, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Eastern Creek 1:100 000 topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

Tags: 100K scale, AU-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Warrina 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-SA, Earth Sciences, GIS Dataset, Published_External, dataset, topography
Organization: Geoscience Australia Data
Building Survey in the Sydney Central Business District (CBD) - Flyer

Knowledge of the nature of buildings within business precincts is fundamental to a broad range of decision making processes, including planning, emergency management and the mitigation of the impact of natural hazards. To support these activities, Geoscience Australia has developed a building information system called the National Exposure Information System (NEXIS) which provides information on buildings across Australia. Most of the building level information in NEXIS is statistically derived, but efforts are being made to include more detailed information on the nature of individual buildings, particularly in business districts. This is being achieved in Sydney through field survey work.

Tags: BUILT ENVIRONMENT AND DESIGN, EARTH SCIENCES, ENGINEERING, Published_External, Sydney Central Business District - CBD, emergency management, mitigation, natural hazards
Organization: Geoscience Australia Data
Geochemical map of Australia (First Edition) - Grain size distribution series

Map(s) of Grain size distribution (sand [2000-20 um], silt [20-2 um] and clay [&lt;2 um]) in bulk Top Outlet Sediment (TOS) and/or Bottom Outlet Sediment (BOS) samples. 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
Digital Elevation Model (DEM) of Australia derived from LiDAR 5 Metre Grid

The Digital Elevation Model (DEM) 5 Metre Grid of Australia derived from LiDAR model represents a National 5 metre (bare earth) DEM which has been derived from some 236 individual LiDAR surveys between 2001 and 2015 covering an area in excess of 245,000 square kilometres. These surveys cover Australia's populated coastal zone; floodplain surveys within the Murray Darling Basin, and individual surveys of major and minor population centres. All available 1 metre resolution LiDAR-derived DEMs have been compiled and resampled to 5 metre resolution datasets for each survey area, and then merged into a single dataset for each State. These State datasets have also been merged into a 1 second resolution national dataset. 

The acquisition of the individual LiDAR surveys and derivation of the 5m product has been part of a long-term collaboration between Geoscience Australia, the Cooperative Research Centre for Spatial Information (CRCSI), the Departments of Climate Change and Environment, State and Territory jurisdictions, Local Government and the Murray Darling Basin Authority under the auspices of the National Elevation Data Framework and Coastal and Urban DEM Program, with additional data supplied by the Australian Department of Defence. The source datasets have been captured to standards that are generally consistent with the Australian ICSM LiDAR Acquisition Specifications with require a fundamental vertical accuracy of at least 0.30m (95% confidence) and horizontal accuracy of at least 0.80m (95% confidence).

Tags: DEM, ECOLOGY Landscape, Earth Sciences, GIS Dataset, LAND Topography Models, Published_External
Organization: Geoscience Australia Data
GSWA Perenjori TMI 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 GSWA Perenjori TMI Grid Geodetic has a cell size of 0.00042 degrees (approximately 43m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 2011 by the WA Government, and consisted of 121110 line-kilometres of data at 200m line spacing and 50m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, TMI, WA, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 1238, total magnetic intensity
Organization: Geoscience Australia Data
Forrest, WA, 2010 (Eucla Basin 5N) (P1223), 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 Forrest, WA, 2010 (Eucla Basin 5N) survey were acquired in 2010 by the WA Government, and consisted of 73785 line-kilometres of data at 200m line spacing and 50m terrain clearance.

Tags: Australia, DEM, EARTH SCIENCES, Earth sciences, Elevation, GADDS2.0, Published_External, WA, airborne digital data, geophysical survey, geophysics, line, survey 1223, terrain, vector
Organization: Geoscience Australia Data
Bohemia 1:100 000 topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

Tags: 100K scale, AU-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Macroseismic effects, locations and magnitudes of some early Tasmanian earthquakes

The Richter magnitude, ML, for historical earthquakes can be obtained from the Modified Mercalli intensity, I, and hypocentral distance, R (km) using the formula ML = 1.13 In R + 0.6671 - 2.60. A magnitude is calculated from each intensity contour with a mean radius greater than 35 km, and the arithmetic mean of these magnitudes is designated MI. It approximates ML, usually to half a magnitude unit or better. For Tasmanian and Victorian events where the MMIII contour is not included in the magnitude determination, a correction of -0.2 should be applied to MI.  For New South Wales earthquakes, the correction is -0.1.  Isoseismal maps prepared from felt reports in contemporary newspapers were used to determine the epicentres and magnitudes of what are probably the five largest western Tasmanian earthquakes from 1853 to 1957: Circular Head, 21 November 1859, MI 5.4; South West Tasmania, 3 February 1880, MI 5.5; Queenstown, 4 May 1908, MI 4.8; West Coast, 4 November 1911 , MI 4.8; and West Coast, 1 March 1924, MI 5.2. All were felt with a maximum intensity of at least MMVI. The South West Tasmania event, the largest historic western Tasmanian earthquake, may have occurred on the Lake Edgar fault, but its epicentre is not well-constrained.  The Tasmanian earthquake swarm of 1883-1892 consisted of around 2000 events felt in the northeastern Tasmanian region. The activity occurred at the rate of at least one event per month from April 1883 to May 1887, and there were at least two events each year up to and including 1892, when the series ended. Isoseismal maps were drawn from contemporary newspaper reports and publications, and epicentres and magnitudes determined for the three largest events: 26 January 1892, MI 6.9; 12 May 1885, MI 6.8; and 13 July 1884, MI 6.4. All three earthquakes were felt from southeastern New South Wales in the north to Hobart in the south, and each caused minor damage in Launceston. Their epicentres were located in the Tasman Sea off the northeastern tip of Tasmania. The MI 6.9 (Â±0.4) event of 1892 is the largest historic earthquake recorded in eastern Australia.  In 1883, Alfred Barrett Biggs of Launceston, Tasmania, built and operated the first seismoscopes used in Australia. From his measurements and the epicentres determined above,the instrumental Richter magnitudes of the 1884 and 1885 events have been calculated as ML 6.2 and 6.5, respectively, in good agreement with their intensity-deduced magnitudes, MI 6.4 and 6.8.

Tags: Earth Sciences, GA Publication, Journal, Published_External, TAS
Organization: Geoscience Australia Data
Yealering 1:100 000 topographic map

At this scale 1cm on the map represents 1km on the ground. Each map covers a minimum area of 0.5 degrees longitude by 0.5 degrees latitude or about 54 kilometres by 54 kilometres. The contour interval is 20 metres. Many maps are supplemented by hill shading. These maps contain natural and constructed features including road and rail infrastructure, vegetation, hydrography, contours, localities and some administrative boundaries. Product Specifications Coverage: Australia is covered by more than 3000 x 1:100 000 scale maps, of which 1600 have been published as printed maps. Unpublished maps are available as compilations. Currency: Ranges from 1961 to 2009. Average 1997. Coordinates: Geographical and either AMG or MGA coordinates. Datum: AGD66, GDA94; AHD Projection: Universal Transverse Mercator UTM. Medium: Printed maps: Paper, flat and folded copies. Compilations: Paper or film, flat copies only.

Tags: 100K scale, AU-WA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Gilgandra, NSW, 1979 (P453), 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 Gilgandra, NSW, 1979 (P453), radiometric line data, AWAGS levelled were acquired in 1979 by the NSW Government, and consisted of 13556 line-kilometres of data at 1500m line spacing and 150m 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, NSW, Published_External, airborne digital data, gamma-ray, geophysical survey, geophysics, line, potassium, radiometrics, spectrometry, survey 453, thorium, uranium, vector
Organization: Geoscience Australia Data