Canobie Airborne Gravity Gradiometry Survey, 2021

The Canobie Airborne Gravity Gradiometer (AGG) survey of Northern Queensland was flown between 24 November and 3 December 2021. Contracted to Xcalibur Multiphysics, Geoscience Australia undertook the project management, contract management and quality control on behalf of the Geological Survey of Queensland. The located data, gridded data and quality control reports are contained within this record. Survey area was centered on latitude 19° 31’ 04” S and longitude 140° 44’ 14” E to the north of Cloncurry. A total of 8 production flights were flown for a combined total of 4,712.4 line kilometers of data and acquired on 1000 m line spacing at 80 m nominal terrain clearanceQuality control was performed by airborne gravity consultant Dr Mark Dransfield on behalf of Geoscience Australia, with his report included here.The survey was designed to supplement the regional legacy ground gravity data and improve the definition of gravimetric anomalies in a region deemed highly prospective for base metals exploration. In addition, the AGG survey will provide better understanding of the cover sequence thickness (estimated to be less than 100 m) and characteristics of the underlying basement geology. The data was released by the Geological Survey of Queensland on March 29 and can be found at https://geoscience.data.qld.gov.au/dataset/gg100099/resource/geo-spa460972-gg100099. Survey Name: Canobie airborne gravity gradiometery survey,2021Datasets Acquired: Gravity gradiometry, digital terrain modelGeoscience Australia Project Number: P5021Acquisition Start Date: 24/11/2021Acquisition End Date: 03/12/2021Flight line spacing: 1000 mFlight line direction: East-West (090-270)Total distance flown: 4,712 line-kmNominal terrain clearance: 80 mBlocks: 1Data Acquisition: Xcalibur MultiphysicsProject Management: Geoscience AustraliaQuality Control: Mark Dransfield on behalf of Geoscience AustraliaDataset Ownership: Geological Survey of Qld and Geoscience AustraliaIncluded in this release:1. Point-located DataASCII-column data with accompanying description and definition files.• Gravity gradiometry data including the various corrections• Gravity gradiometry data noise estimates• Vertical gravity estimate including various reduction and levelled corrections• Digital terrain model2. GridsGridded data in ERMapper (.ers) format (GDA2020):• Gravity gradiometry• Free-air corrected vertical gravity• Terrain and bouguer corrected vertical gravity• Digital terrain model3. Reports• Contractors Logistics Report• Quality Control Report (Mark Dransfield)4. Location• ARCGIS shape file© Geological Survey of Queensland and Commonwealth of Australia (Geoscience Australia) 2021. With the exception of the Commonwealth Coat of Arms and where otherwise noted, this product is provided under a Creative Commons Attribution 4.0