AndreaBozzo/ceres-open-data-index huggingface dataset:
St Arnaud Detail, Vic, 1990 (GSV0368) (P567), 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 St Arnaud Detail, Vic, 1990 (GSV0368) survey were acquired in 1990 by the VIC Government, and consisted of 15500 line-kilometres of data at a line spacing between 200m and 200m, 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, Published_External, VIC, airborne digital data, geophysical survey, geophysics, line, magnetic, magnetics, magnetism and palaeomagnetism, survey 567, vector
Organization: Geoscience Australia Data
Aquatic Substrate Library - Ningaloo Reef 2006

Record for source data hosted in the National Spectral Database (NSD) Aquatic Library
Citation:
Halina T. Kobryn, Kristin Wouters, Lynnath E. Beckley, Thomas Heege and Nicole Pinnel.  Benthic habitat, topography and geomorphic classifications of Ningaloo reef with hyperspectral imagery. In: Ningaloo Collaboration Cluster Final Report No.1b. p.9-96, June, 2011.
For further information and instructions to access the database go to the following URL:
https://cmi.ga.gov.au/data-products/dea/643/australian-national-spectral-database

Tags: Aquatic Substrate Library, Australian National Spectral Database (NSD), Australian spectral data, EARTH SCIENCES, End-member studies, Field spectroscopy, HVC_144490, NSD Source Dataset, Published_External, Remote sensing
Organization: Geoscience Australia Data
GSWA Newdegate Ravensthorpe Bremer Bay Merge Magnetic 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 Newdegate Ravensthorpe Bremer Bay Merge Magnetic Grid Geodetic has a cell size of 0.00083 degrees (approximately 85m). The units are in nanoTesla (or nT). 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, NCI, Published_External, TMI, WA, airborne digital data, geophysical survey, geophysics, grid, mag, magnetics, magnetism, palaeomagnetism, raster, survey 1332, total magnetic intensity
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files: Broome (se51)

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
Southwest Western Australia Helicopter Gravity (P196911), 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 Southwest Western Australia Helicopter Gravity (P196911) contains a total of 3049 point data values acquired at a spacing of 11000 metres. The data is located in WA and were acquired in 1969, under project No. 196911 for Bureau of Mineral Resources (BMR).

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, WA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 196911
Organization: Geoscience Australia Data
AUSGeoid98 v.1.0 data files:  (sk51-11)

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
National ASTER Map Ferrous iron content in MgOH/carbonate


Band ratio: B5/B4 Blue is low ferrous iron content in carbonate and MgOH minerals like talc and tremolite. Red is high ferrous iron content in carbonate and MgOH minerals like chlorite and actinolite.
Useful for mapping: (1) un-oxidised "parent rocks" - i.e. mapping exposed parent rock materials (warm colours) in transported cover; (2) talc/tremolite (Mg-rich - cool colours) versus actinolite (Fe-rich - warm colours); (3) ferrous-bearing carbonates (warm colours) potentially associated with metasomatic "alteration"; (4) calcite/dolomite which are ferrous iron-poor (cool colours); and (5) epidote, which is ferrous iron poor (cool colours) - in combination with FeOH content product (high).


Tags: Earth Observations from Space, Earth Sciences, HVC_144626, NCI, Published_External, Remote Sensing, Satellite imagery, mineralogy
Organization: Geoscience Australia Data
Murray Islands 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, PG, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
First insights into the deep structure of the eastern Australian passive margin using wide-angle seismic data: Crustal segmentation from the Tasman Basin to the northern Lord Howe Rise

The eastern Australian margin was shaped by the fragmentation of eastern Gondwana during the Late Cretaceous. This led to the opening of the Tasman Basin and to the formation of sub-parallel ridges and basins, including the Lord Howe Rise continental ribbon. To image the deep structure of the region, a large-scale crustal experiment was conducted by JAMSTEC and Geoscience Australia onboard the R/V Kairei with the deployment of 100 ocean-bottom seismometers (OBS) along a 680 km profile at 27.2°S. The OBSs register clear refracted arrivals from the crust and the mantle that are recorded at very large offsets, as great as 300 km. Both pre- and post-critical reflected phases from the Moho (PmP) are also very clearly recorded by the OBSs. We performed first-arrival tomographic inversion to analyze the data. An initial layered P-wave velocity model was built using the two-way travel time reflection from the basement interpreted from coincident multi-channel seismic data to constrain the thickness of the sedimentary layer. During the inversion, the PmP arrivals are used to add constraints on the thickness of the crust. The uncertainty in the final P-wave velocity model is tested by applying Monte Carlo analysis. The final Vp model shows large variations in crustal thickness and allows the identification of distinct crustal domains along the profile from the Tasman Basin to the northern Lord Howe Rise: the Tasman Basin is an oceanic domain with 6 to 8 km thick crust; further east, thicker crust is present below the Dampier Ridge; the crust again thins to 8 km below the Middleton Basin; and the northern Lord Howe Rise is floored by a 23 km thick crust. Further work will compare the modeled P-wave velocities with previouslypublished results from the southwest Pacific region and well-known tectonic provinces to discuss to the nature of the crust within the crustal domains. This will help to better understand the processes that led to the fragmentation of eastern Gondwana.
Abstract submitted and presented at 2017 IAG-IASPEI conference (https://www.zisin.jp/event/iag-iaspei-2017/)

Tags: EARTH SCIENCES, Lord Howe Rise - LHR, continental ribbon, eastern Gondwana, rifting
Organization: Geoscience Australia Data
Millungera Detailed Gravity (P196920), 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 Millungera Detailed Gravity (P196920) contains a total of 254 point data values acquired at a spacing between 150 and 500 metres. The data is located in QLD and were acquired in 1969, under project No. 196920 for None.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, QLD, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 196920
Organization: Geoscience Australia Data
Wintinna Gravity (P196947), 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 Wintinna Gravity (P196947) contains a total of 70 point data values acquired at a spacing between 4500 and 6000 metres. The data is located in SA and were acquired in 1969, under project No. 196947 for Geosurveys Australia Pty Ltd.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, NCI, Published_External, SA, geophysical survey, geophysics, gravity, ground digital data, point, point located data, survey 196947
Organization: Geoscience Australia Data
Fisk 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
Everard 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-SA, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
MRTAS King Island 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 0.00042 degrees (approximately 41m) and shows potassium element concentration of the King Island, Tas, 2001 (WTRMP Area A) in units of percent (or %). The data used to produce this grid was acquired in 2001 by the TAS Government, and consisted of 8633 line-kilometres of data at 200m line spacing and 80m terrain clearance.

Tags: Australia, EARTH SCIENCES, Earth sciences, GADDS2.0, K, NCI, Published_External, TAS, airborne digital data, gamma-ray, geophysical survey, geophysics, grid, potassium, rad, radiometrics, raster, spectrometry, survey 822
Organization: Geoscience Australia Data
BMR journal of Australian geology and geophysics vol.5 no.1

Contents:
1.Coutts DA, Wellman P, Barlow BC. Calibration of gravity meters with a quartz-mechanism. 
2.Seidel GE. Application of the GABHYD groundwater model of the Great Artesian Basin, Australia. 
3.Senior BR, Habermehl MA. Structure, hydrodynamics and hydrocarbon potential, central Eromanga Basin, Queensland, Australia.
4.Draper JJ. Rusophycus (Early Ordovician ichnofossil) from the Mithaka Formation, Georgina Basin. 
5.Smith RS, McEwin AJ. Earthquake accelerograms and attenuation of seismic waves at Oolong, New South Wales. 
6.Exon NF, Moreton D, Hicks G. Manganese nodules from the Tasman Sea off Sydney. 
7.O'Connor DPH. Evidence of an exhalative origin for deposits of the Cobar district, New South Wales (comment). 
8.Sangster DF. Evidence of an exhalative origin for deposits of the Cobar district, New South Wales (reply). 
9.Rod E. Mode of emplacement of the Papuan Ultramafic Belt: a discussion. 
10.Connelly JB. Mode of emplacement of the Papuan Ultramafic Belt: reply. 
11.Habermehl MA. The Great Artesian Basin, Australia.

Tags: AU, Earth Sciences, GA Publication, Journal, Published_External
Organization: Geoscience Australia Data
Groundwater-riverwater density contrast: its effect on the pattern of groundwater discharge to the River Murray

A density contrast between river water and groundwater causes the pressure in the aquifer below the River Murray to be less than that in the aquifer adjacent to the river. The magnitude of the pressure difference is proportional to the depth of the river, and groundwater discharge is biased toward the zones of maximum pressure difference. These zones are the deepest sections of the river, herein called trenches. Groundwater entrainment from the trenches causes plumes of salinised (and hence denser) river water to flow along the bottom of the river. These plumes are fully mixed with the river water where the river is shallow. River salinity measurements and computer modelling of the density contrast effect indicate that the groundwater discharge per unit length of river is 40-60% greater at a trench than elsewhere.

Tags: Earth Sciences, GA Publication, Journal, Published_External, SA
Organization: Geoscience Australia Data
An Audit of Wells in the Arafura Basin

This report is a post-drill assessment of wells drilled in the Neoproterozoic to Palaeozoic Arafura Basin and the overlying Mesozoic to Cenozoic Money Shoal Basin. The Arafura Basin is located offshore northern Australia and extends from the onshore Northern Territory to beyond the Australian-Indonesian border. The region is under-explored with only 9 wells drilled, all of which are located in the central Goulburn Graben, a complexly structured feature. They include: Arafura-1, Chameleon-1, Cobra-1A, Kulka-1, Goulburn-1, Money Shoal-1, Tasman-1, Torres-1 and Tuatara-1. These wells have been analysed based on well completion reports, information from Geoscience Australia databases and published reports.

Tags: AU-NT, Earth Sciences, GA Publication, Published_External, Record, hydrocarbons, petroleum exploration, petroleum geology
Organization: Geoscience Australia Data
Sweers Island 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-QLD, Published_External, Topographic Map, Topology, topography
Organization: Geoscience Australia Data
Tarcoola International Map of the World (IMW) 1:1 000 000 topographic map

The International Map of the World (IMW) series is no longer maintained, and printed copies of this map are no longer available. The Australian portion of the series consists of 49 maps. They were produced to an international specification using the R502 series at 1:250,000 scale as source material. Production commenced in 1926 and was completed in 1978. The maps were revised from time to time and the last reprint was undertaken in 2003. Each standard map sheet covers 4 degrees of latitude by 6 degrees of longitude and was produced using a Lambert Conformal Conic projection with 2 standard parallels. The series has recently been superseded by the 1:1 000 000 topographic map general reference.

Tags: 1M scale, AU_SA, Published_External, Topographic Map, Topology
Organization: Geoscience Australia Data
Geomorphology and Stratigraphy of Keppel Bay, South-east Queensland, Australia

Keppel Bay is a large shallow coastal embayment adjacent to the mouth of the Fitzroy River, located on the central coast of Queensland. The geomorphology and distribution of sediment in Keppel Bay is complex due to the influence of Late Quaternary sea-level change, relict topography, a geologically diverse catchment, macrotidal hydrodynamic processes and flood events. 
Seabed morphology, sub-bottom profiles and sediment cores reveal the former path of the Fitzroy River across Keppel Bay and the continental shelf. The palaeo-Fitzroy River flowed west across the shelf to the north of Northwest Reef, a position on the shelf that is now under approximately 60 m of water. With the rise in sea level during the early Holocene, the mouth of the Fitzroy River retreated across the continental shelf and by the middle Holocene it was landwards of its present location, near Rockhampton. During the last few thousand years under a relatively stable sea level, much of the shallow inner region of Keppel Bay has been infilled and the coast has prograded several kilometres. Palaeochannels in the inner section of Keppel Bay have mostly been infilled with sediment, which mainly comprises muddy sand from the Fitzroy River. In the outer bay and on the shelf further west many relict channels have not been infilled with marine sediment indicating that the area is relatively starved of sediment. Sediments in outer Keppel Bay are dominantly relict fluvial deposits that are well sorted with only a minor mud component. Subaqueous dunes in the outer southeastern section of Keppel Bay and Centre Bank indicate that tidal currents and currents associated with the predominant southeasterly winds, appear to be transporting marine biogenic sediments and relict coarse terrigenous sediments into Keppel Bay.

Tags: AU-QLD, Earth Sciences, GA Publication, Published_External, Record, climate, coasts, continental shelf, depositional mechanisms, marine, seabed
Organization: Geoscience Australia Data