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    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 Australia wide AFGN Absolute 2013 (P201391) contains a total of 11 point data values acquired at a spacing of 750 metres. The data is located in ACT, NSW, NT, QLD, SA, TAS, VIC, WA and were acquired in 2013, under project No. 201391 for Geoscience Australia.

  • <p>This dataset contains magnetotelluric data and a 3D inversion model from the 09GA-GA1 deep magnetotelluric transect, collected in Central Australia in 2009. The transect is 350 km long, with data acquired from 18 stations with both broadband and long period instrumentation, and 21 stations with broadband instrumentation only (a total of 39 sites). The resulting station spacing is 10km for the broadband stations, and 20km for stations with both broadband and long period instrumentation. We have reprocessed the broadband data using the Bounded Influence, Remote Reference Processing software (BIRRP), yielding an extended bandwidth of 0.003 to 1300 s and merged these data with the long period data. We have inverted the data using the ModEM 3D inversion code. <p>More details on the data processing, analysis, modelling, and interpretation can be found in the following paper: Kirkby, A. and Duan, J., 2019. Crustal Structure of the Eastern Arunta Region, Central Australia, From Magnetotelluric, Seismic, and Magnetic Data. Journal of Geophysical Research: Solid Earth, 124. <a href="https://doi.org/10.1029/2018JB016223">https://doi.org/10.1029/2018JB016223</a>

  • Flyers for 2016 Australian Government Annual Preparedness Briefing Includes: Sentinel Hotspots: What's new in Sentinel? Accessing satellite imagery for Emergency Management

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    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 Leigh Creek Gravity (P194701) contains a total of 887 point data values acquired at a spacing of 805 metres. The data is located in SA and were acquired in 1947, under project No. 194701 for Department of Mines and Energy South Australia (SADME).

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    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 Morwell Gravity (P194901) contains a total of 84 point data values acquired at a spacing between 200 and 750 metres. The data is located in VIC and were acquired in 1949, under project No. 194901 for Bureau of Mineral Resources (BMR).

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    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 Leigh Creek Gravity (P194830) contains a total of 171 point data values acquired at a spacing of 750 metres. The data is located in SA and were acquired in 1948, under project No. 194830 for Department of Mines and Energy South Australia (SADME).

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    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 Carnarvon-Onslow Gravity (P195005) contains a total of 1 point data values acquired at a spacing of 6437 metres. The data is located in WA and were acquired in 1950, under project No. 195005 for None.

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    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 Penola Wrattonbully Gravity (P195050) contains a total of 76 point data values acquired at a spacing of 450 metres. The data is located in SA and were acquired in 1950, under project No. 195050 for Department of Mines and Energy South Australia (SADME).

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    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 Bordertown Wolseley Nhill Gravity (P195051) contains a total of 45 point data values acquired at a spacing of 1000 metres. The data is located in SA, VIC and were acquired in 1950, under project No. 195051 for Department of Mines and Energy South Australia (SADME).

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    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 Road Traverses Cobar to Forbes, Gravity (P197135) contains a total of 97 point data values acquired at a spacing of 3000 metres. The data is located in NSW and were acquired in 1971, under project No. 197135 for Department of Mines (New South Wales).