From 1 - 10 / 394
  • Categories  

    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 Coalfields Detailed Gravity (ECCP) (P198051) contains a total of 1578 point data values acquired at a spacing between 20 and 50 metres. The data is located in TAS and were acquired in 1980, under project No. 198051 for Mineral Resources Tasmania (MRT).

  • Categories  

    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 2016 (P201691) contains a total of 21 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 2016, under project No. 201691 for Geoscience Australia.

  • Categories  

    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 MRTAS SW Tasmania tmi grid geodetic has a cell size of 0.001 degrees (approximately 96m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1965 by the TAS Government, and consisted of 22683 line-kilometres of data at 400m line spacing and 150m terrain clearance.

  • Categories  

    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 Cambridge Pendulum Isogals (P195099) contains a total of 57 point data values acquired at a spacing of 250000 metres. The data is located in ACT, NSW, NT, QLD, SA, TAS, VIC, WA and were acquired in 1950, under project No. 195099 for Bureau of Mineral Resources (BMR).

  • Categories  

    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 Great Lake Region Gravity (P196250) contains a total of 223 point data values acquired at a spacing of 1250 metres. The data is located in TAS and were acquired in 1962, under project No. 196250 for University of Tasmania.

  • Categories  

    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 Rossarden Detailed Gravity (P197352) contains a total of 321 point data values acquired at a spacing between 17 and 175 metres. The data is located in TAS and were acquired in 1973, under project No. 197352 for None.

  • Categories  

    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 BMR Soviet Australia Calibration Line (P197390) contains a total of 31 point data values acquired at a spacing of None metres. The data is located in ACT, NSW, NT, QLD, SA, TAS, VIC, WA and were acquired in 1973, under project No. 197390 for Bureau of Mineral Resources (BMR); USSR CRIGASC.

  • Categories  

    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 Soviet Pendulum Isogal Ties (P197499) contains a total of 1 point data values acquired at a spacing of None metres. The data is located in TAS and were acquired in 1974, under project No. 197499 for Bureau of Mineral Resources (BMR); USSR CRIGASC.

  • Categories  

    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 Helicopter Gravity Eastern Australia - Tasmania (P197304) contains a total of 19 point data values acquired at a spacing between 10000 and 21000 metres. The data is located in TAS and were acquired in 1973, under project No. 197304 for Wongela Geophysical Pty Ltd.

  • Categories  

    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 Helicopter Gravity Eastern Australia - Tasmania (BMR7300) (P197303) contains a total of 1122 point data values acquired at a spacing between 6000 and 6250 metres. The data is located in TAS and were acquired in 1973, under project No. 197303 for Wongela Geophysical Pty Ltd.