WMS This web service delivers the geographical extents and descriptive metadata of geophysical datasets from all surveys conducted or managed by Geoscience Australia and its predecessor agencies, as well as from State and Territory geological survey agencies. Datasets include gravity, magnetic, radiometric, and electromagnetic data, and elevation data collected during geophysical surveys. geophysics geophysical survey magnetism radiometrics gravity electromagnetics elevation WMS EFTF GADDS Geoscience Australia Client Services Postal

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This product is released under the Creative Commons Attribution 4.0 International Licence text/xml image/png application/atom+xml application/geopackage+sqlite3 application/json;type=utfgrid application/pdf application/rss+xml application/vnd.google-earth.kml+xml application/vnd.google-earth.kml+xml;mode=networklink application/vnd.google-earth.kmz image/geotiff image/geotiff8 image/gif image/jpeg image/png; mode=8bit image/svg+xml image/tiff image/tiff8 image/vnd.jpeg-png image/vnd.jpeg-png8 text/html; subtype=openlayers text/html; subtype=openlayers2 text/html; subtype=openlayers3 text/plain application/vnd.ogc.gml text/xml application/vnd.ogc.gml/3.1.1 text/xml; subtype=gml/3.1.1 text/html application/json application/ld+json XML INIMAGE BLANK JSON This web service provides descriptions of geophysical surveys and datasets derived from those surveys, which are delivered by the Geophysical Archive Data Delivery System v2.0 (https://www.geoscience.gov.au/gadds). EPSG:4283 EPSG:4326 EPSG:3857 EPSG:20248 EPSG:20249 EPSG:20250 EPSG:20251 EPSG:20252 EPSG:20253 EPSG:20254 EPSG:20255 EPSG:20256 EPSG:20257 EPSG:20258 EPSG:28348 EPSG:28349 EPSG:28350 EPSG:28351 EPSG:28352 EPSG:28353 EPSG:28354 EPSG:28355 EPSG:28356 EPSG:28357 EPSG:28358 EPSG:32748 EPSG:32749 EPSG:32750 EPSG:32751 EPSG:32752 EPSG:32753 EPSG:32754 EPSG:32755 EPSG:32756 EPSG:32757 EPSG:32758 EPSG:3110 EPSG:3111 EPSG:3112 CRS:84 -180.0 180.0 -52.2176322937012 25.0 gadds:geophysical_datasets_aem Airborne Electromagnetic (AEM) data are used in minerals, energy, and groundwater resource exploration. The AEM technique takes advantage of natural variations in electrical conductivity beneath the surface, which results from variation in rock and pore fluid properties. The presence of electrically conductive minerals such as graphite, clays, and sulfide minerals, or electrically conductive fluid such as saline groundwater, results in greater conductivity relative to non-conductive mineral assemblages, or non-conductive fluid (typically fresh ground water). AEM data are collected by transmitting an electromagnetic signal from a system attached to a plane or helicopter. The signal induces eddy currents in the ground which are detected by receiver coils towed below and behind the aircraft. Precompetitive AEM data and associated scientific analysis assists exploration under cover by reducing risk, stimulating investment and promoting exploration for commodities. In recent years, Geoscience Australia has flown Airborne Electromagnetic (AEM) surveys across regional Australia. Data and associated interpretations from such regional surveys have led to tenement take up, stimulated exploration for a number of commodities. airborne electromagnetics eddy currents time domain electromagnetic (TEM) frequency domain electromagnetic (FEM) conductivity resistivity SkyTEM VTEM TEMPEST ground water minerals sulfides EPSG:4326 CRS:84 110.0 153.0 -41.0 -8.0 gadds:geophysical_datasets_elevation Digital Elevation data record the terrain height variations from the processed point-located data recorded during a geophysical survey. The data acquired are a mass of ground heights representing a terrain surface. The data are either geoidal (representing the vertical distance from a location on the Earth's surface to the geoid) or ellipsoidal (representing the vertical distance from a location on the Earth's surface to the ellipsoid). The data are given in units of meters. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. elevation geophysical survey airborne survey line data raster data digital elevation model ellipsoid height geoid height GADDS GADDS EPSG:4326 CRS:84 112.51286315918 153.890777587891 -44.0803108215332 -10.4854135513306 text/html gadds:geophysical_datasets_gravity 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 with rigorous corrections 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. gravity geophysical survey ground survey marine survey bouguer anomaly free air spherical cap isostatic residual GADDS EPSG:4326 CRS:84 99.6499633789062 170.342239379883 -52.2176322937012 -5.89588403701782 text/html gadds:geophysical_datasets_magnetic 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. Once processed and enhanced, magnetic data can be used to locate structural features such as dykes and faults. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose magnetism magnetics geophsyical survey airborne survey marine survey total magnetic intensity reduced to the pole variable reduction to the pole line data raster data GADDS EPSG:4326 CRS:84 104.746192932129 156.255844116211 -45.1852416992188 -7.9350733757019 text/html gadds:geophysical_datasets_radiometric 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). Radiometrics can tell us about the distribution of certain soils and rocks. Geologists and geophysicists routinely use it as a geological mapping tool to tell them where certain rock types change. It is also useful for the study of geomorphology and soils. 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. radiometric radiometrics potassium thorium uranium dose total count ratio uranium over thorium ratio uranium over potassium ratio uranium squared over thorium ratio thorium over potassium geophysical survey airborne survey line data raster data GADDS EPSG:4326 CRS:84 112.508560180664 154.897003173828 -44.085319519043 -9.52118301391602 text/html gadds:geophysical_survey_datasets Descriptions of geophysical datasets, their associated surveys, and the methods used for delivery of those datasets. Includes datasets collected from airborne, land, and marine surveys conducted or managed by Geoscience Australia and its predecessor agencies, as well as data and surveys from State and Territory geological survey agencies geophysics geophysical survey radiometrics magnetism gravity electromagnetics elevation raster data line data point data airborne survey ground survey marine survey GADDS EPSG:4326 CRS:84 100.0 170.0 -52.0 -8.0 text/html gadds:geophysical_surveys Descriptions of airborne, land, and marine geophysical surveys conducted or managed by Geoscience Australia and its predecessor agencies, as well as surveys from State and Territory geological survey agencies. geophysics geophysical survey magnetism radiometrics gravity electromagnetics elevation airborne survey ground survey marine survey GADDS EPSG:4326 CRS:84 -180.0 180.0 -44.5 25.0 text/html