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Dr Philip HeathGeological Survey of South Australia
Microgravity surveys on the Nullarbor
Disclaimer
The information contained in this presentation has been compiled by the Department of the Premier and Cabinet (DPC) and originates from a variety of sources. Although all reasonable care has been taken in the preparation and compilation of the information, it has been provided in good faith for general information only and does not purport to be professional advice. No warranty, express or implied, is given as to the completeness, correctness, accuracy, reliability or currency of the materials.
DPC and the Crown in the right of the State of South Australia does not accept responsibility for and will not be held liable to any recipient of the information for any loss or damage however caused (including negligence) which may be directly or indirectly suffered as a consequence of use of these materials. DPC reserves the right to update, amend or supplement the information from time to time at its discretion.
Custodians of geoscientific information in SA
The Geological Survey of South Australia
High school: 9.8ms-2
Typical value (Kensington Gardens Sportsfield):
• 9.79698505 ms-2
• 979698.505 mGal
• 9796985.05 mms-2
• 979698505 mGal
Microgravity: measuring to tens of microgals i.e., under 0.1mGal
Gravity and microgravity
979161.5625 to 979469.125 = 307.5625 mGals
-93.712541 to 37.649952 = 131.362493 mGals
Observed gravity vs Bouguer gravity
Coompana
Coompana
Coompana drilling program
Coompana: landscape
Gravity ties
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Interpretation
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No trucks were eaten by the Nullarbor.
No cavities hit during the drilling program.
Report Book 2017/00021
Results
Contact minerals.dpc.sa.gov.au
Department of Energy and Mining - Mineral Resources DivisionGeological Survey of South Australia
Level 12, 11 Waymouth StreetAdelaide, South Australia 5000
T: +61 8 8463 3000E: [email protected]
