Update on Geophysical Data Acquisition November 2011
| Location | State | Survey | % Complete | Gravity Stations | Flight Lines | Spacing | Ground Clearance | Comments |
|---|---|---|---|---|---|---|---|---|
| South Officer 1 (Jubilee) | WA | Airborne magnetic and radiometric | 100% | N/A | 180 000 line km; north-south over an area of approx. 32 380km² |
200m | 50m agl | Data acquisition commenced on 10 June 2010. Data acquisition was completed on 22 June 2011. Final data QA/QC nearing completion. |
| South Officer 2 (Waigen-Mason) | WA | Airborne magnetic and radiometric | 100% | N/A | 113 000 line km; north-south over an area of approx. 39 890km² |
400m | 60m agl | QA/QC of final data nearing completion. |
| North Canning 4 (Lagrange-Munro) | WA | Airborne magnetic and radiometric | 100% | N/A | 103 000 line km; north-south over an area of approx. 36 680km² |
400m | 60m agl | Data acquisition commenced on 20 September 2010. Data acquisition completed on 23 June 2011. Final data QA/QC nearing completion. |
| Grafton – Tenterfield | NSW | Airborne magnetic and radiometric | 84% | N/A | 100 000 line km; east-west over an area of approx. 23 000km² |
250m | 60m agl | The survey covers the Goondiwindi, Warwick, Tweed Heads, Inverell, Grafton and Maclean 1:250 000 Map Sheets. Data acquisition commenced on 16 June 2011. Data acquisition was 84% complete on 16 October 2011. |
| West Kimberley | WA | Airborne magnetic and radiometric | 39.3% | N/A | 134 000 line km; north-south; area 42 000km² | 800m and 200m (Charnley) | 60m agl and 50m agl (Charnley) | The survey covers the Montague Sound, Prince Regent, Camden Sound and Charnley 1:250 000 Map Sheets. Data acquisition commenced on 29 June 2011. Data acquisition was 39.3% complete on 23 October 2011. |
| Perth Basin North | WA | Airborne magnetic and radiometric | 54.3% | N/A | 96 000 line km; east-west; area 30 000km² | 400m | 60m agl | The survey covers the Ajana, Geraldton and Dongara 1:250 000 Map Sheets. Data acquisition commenced on 11 June 2011. Data acquisition was 54.3% complete on 16 October 2011. |
| Perth Basin South | WA | Airborne magnetic and radiometric | 62.5% | N/A | 88 000 line km; east-west; area 27 500km² | 400m | 60m agl | The survey covers the Dongara, Perenjori, Hill River, Moora, Perth, Pinjarra and Collie 1:250 000 Map Sheets. Data acquisition commenced on 22 March 2011. The survey was 62.5% complete on 16 October 2011. |
| Murgoo | WA | Airborne magnetic and radiometric | 80.4% | N/A | 128 000 line km; east-west; area 21 250km² | 200m | 50m agl | The survey covers the Murgoo and Yalgoo 1:250 000 Map Sheets. Data acquisition commenced on 28 February 2011. The survey was 80.4% complete on 23 October 2011. |
| Perenjori | WA | Airborne magnetic and radiometric | 0.5% | N/A | 120 000 line km; east-west; area 20 000km² | 200m | 50m agl | The survey covers the Perenjori and Yalgoo 1:250 000 Map Sheets. Data acquisition commenced on 23 October 2011. The survey was 0.5% complete on 23 October 2011. |
| South Pilbara | WA | Airborne magnetic and radiometric | TBA | N/A | 136 000 line km; north-south; area 42 500km² | 400m | 60m agl | The survey covers the Yarraloola, Pyramid, Mount Bruce, Roy Hill, Balfour Downs and Newman 1:250 000 Map Sheets. Anticipated start date of March 2012. |
| Carnarvon Basin North | WA | Airborne magnetic and radiometric | 100% | N/A | 104 000 line km; east-west; area 32 500km² | 400m | 60m agl | The survey covers the Onslow, Ningaloo, Yanrey, Minilya, Winning Pool, Quobba and Kennedy Range 1:250 000 Map Sheets. Data acquisition commenced on 24 July 2011. The survey was 100% complete on 20 October 2011. |
| Carnarvon Basin South | WA | Airborne magnetic and radiometric | TBA | N/A | 128 000 line km; east-west; area 40 000km² | 400m | 60m agl | The survey covers the Shark Bay, Wooramel, Edel and Yaringa 1:250 000 Map Sheets. Anticipated start date is January 2012. |
| Moora | WA | Airborne magnetic and radiometric | 56.7% | N/A | 128 000 line km; east-west; area 21 250km² | 200m | 50m agl | The survey covers the Moora, Bencubbin, Perth and Kellerberrin 1:250 000 Map Sheets. Data acquisition commenced 13 June 2011. The survey was 56.7% complete on 23 October 2011. |
| Corrigin | WA | Airborne magnetic and radiometric | TBA | N/A | 120 000 line km; east-west; area 20 000km² | 200m | 50m agl | The survey covers the Pinjarra and Corrigin 1:250 000 Map Sheets. Anticipated start date is January 2012. |
| Cape Leeuwin – Collie | WA | Airborne magnetic and radiometric | 70.2% | N/A | 105 000 line km; east-west; area 25 000km² | Collie 200m; Cape Leeuwin 400m |
50m agl (Collie) 60m agl (Cape Leeuwin) |
The survey covers the Busselton, Collie, Augusta and Pemberton 1:250 000 Map Sheets. Data acquisition commenced on 25 March 2011. The survey was 70.2% complete on 19 September 2011. Survey acquisition resumed late October due to weather conditions. |
| Mt Barker | WA | Airborne magnetic and radiometric | 12% | N/A | 120 000 line km; north-south; area 20 000km² | 200m | 50m agl | The survey covers the Pemberton, Mount Barker, Irwin Inlet and Albany 1:250 000 Map Sheets. Data acquisition commenced on 24 April 2011. The survey was 12% complete on 27 June 2011. Data acquisition on the survey resumes in January 2012. |
| Galilee | QLD | Airborne magnetic and radiometric | 26% | N/A | 125 959 line km; east west; area 44 530km² | 400m | 80m agl | The survey covers the Manuka, Tangorin, Winton, Muttaburra, Galilee, Longreach and Jericho 1:250 000 Map Sheets. Data acquisition commenced on 13 August 2011. The survey was 26% complete on 16 October 2011. |
| Thomson West | QLD | Airborne magnetic and radiometric | 61.4% | N/A | 146 000 line km; east west; area 52 170km² | 400m | 80m agl | The survey covers the Quilpie, Charleville, Toompine, Wyandra, Eulo and Cunnamulla 1:250 000 Map Sheets. Data acquisition commenced on 14 May 2011. The survey flying was 61.4% complete on 23 October 2011. |
| Thomson East | QLD | Airborne magnetic and radiometric | 61.4% | N/A | 131 100 line km; east west; area 46 730km² | 400m | 80m agl | The survey covers the Charleville, Mitchell, Wyandra, Homeboin, Cunnamulla and Dirranbandi 1:250 000 Map Sheets. Data acquisition commenced on 14 May 2011. The survey flying was 61.4% complete on 23 October 2011. |
| Thomson Extension | QLD | Airborne magnetic and radiometric | 100% | N/A | 47 777 line km; east west; area 16 400km² | 400m | 80m agl | The survey covers the Augathella, Eddystone, Charleville and Mitchell 1:250 000 Map Sheets. Data acquisition commenced on 22 June 2011. The survey flying was completed on 10 August 2011. |
| Galilee | QLD | Gravity | 100% | 6400 new stations | N/A | 2500m | N/A | The survey covers the Tangorin, Winton, Muttaburra, Galilee, Clermont, Longreach, Jericho, Emerald and Jericho 1:250 000 Map Sheets. Data acquisition commenced on 3 May 2011. The survey data were released via Geophysical Archive Data Delivery System (GADDS) on 25 October 2011. |
| Thomson | QLD | Gravity | 100% | 7670 new stations | N/A | 2500m | N/A | The survey covers the Augathella, Eddystone, Quilpie, Charleville, Mitchell, Toompine, Wyandra, Homeboin, Eulo, Cunnamulla and Dirranbandi 1:250 000 Map Sheets. Data acquisition commenced on 1 April 2011. The survey was completed on 30 June 2011. |
| Peak Hill – Collier | WA | Gravity | 35.1% | 9100 | N/A | 2500m | N/A | The survey covers the Newman, Robertson, Collier, Bullen, Peak Hill and Nabberu 1:250 000 Map Sheets. Data acquisition commenced on 2 August 2011. The survey was 35.1% complete on 3 September 2011. The Survey resumed on 22 October 2011. |
| Kimberley Road Traverses | WA | Gravity | 100% | 7560 | N/A | 400m | N/A | The stations will be collected along 3024 kilometres of gazetted roads in the Kimberley Region of WA. Data acquisition commenced on 12 August 2011. The survey was 100% complete on 26 September 2011. |
| Eucla Southwest |
WA | Gravity | TBA | 3798 | N/A | 2500m | N/A | The survey covers the Naretha, Culver and Balladonia 1:250 000 Map Sheets. The Quotation Request was released on 5 August and closed on 31 August 2011. |
| Eucla Central |
WA | Gravity | TBA | 5704 | N/A | 2500m | N/A | The survey covers the Loongana, Madura and Burnabbie 1:250 000 Map Sheets. The Quotation Request was released on 5 August and closed on 31 August 2011. |
| Eucla East |
WA | Gravity | TBA | 5201 | N/A | 2500m | N/A | The survey covers the Forrest, Eucla and Noonaera 1:250 000 Map Sheets. The Quotation Request was released on 5 August and closed on 31 August 2011. The survey was expected to commence in late October 2011. |
Geoscience Australia will be managing the data acquisition program in New South Wales, Queensland and Western Australia.
For further information, please email murray.richardson@ga.gov.au or phone +61 2 6249 9229.
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New Isostatic Residual Gravity Anomaly Grid of Australia (First Edition)
A new Isostatic Residual Gravity Anomaly Grid of Australia at 800m cell size is now available from GADDS. The grid shows isostatic residual gravity anomalies across onshore Australia. Analysis of gravity anomaly values shows a relationship between terrain-corrected Bouguer anomaly values and the terrain height. This relationship is less evident after the isostatic correction which improves the resolution of anomalies.
The dataset is derived from observations recorded at approximately 1 500 000 gravity stations (or reference points) held in the Australian National Gravity Database (ANGD) by Geoscience Australia. The onshore data were acquired by the federal, state and territory governments, the mining and exploration industry, universities and research organisations over the six decades since the 1950s.
Topic contact: minerals@ga.gov.au Last updated: May 31, 2012
