Australian Gravity Data Released

October 2023 - Preliminary gravity data acquired by Sander Geophysics for the Geological Survey of Victoria and Geoscience Australia have been released. Gravity grids covering areas of Greater Melbourne and eastern Victoria can be downloaded from Earth Resources Victoria or the Geological Survey of Victoria Catalogue. Further processing is going to be performed on this high quality preliminary data, so minor updates are to be expected when the final data are released.

Haydon, S.J./Bates, M., 2023. Greater Melbourne and Eastern Victoria Airborne Gravity Survey - Stage 1 Preliminary Grids. Geological Survey of Victoria Technical Record 2023/2. Geological Survey of Victoria

Geological Survey of Victoria (, October 2023

SGL Flying a Helicopter Survey over Southwest Montana

July 2023 - Sander Geophysics is pleased to have been selected to fly this helicopter survey which is located around Butte, Montana. The Montana Bureau of Mines and the US Geological Survey are collaborating on this project and have identified this area for further study due to its mineral potential. The preplanned lines will be flown at 80-100 metres (260-300 feet) above the surface and around 1,000 feet over populated areas. This survey is part of the USGS Earth Mapping Resource Initiative to increase the geologic framework knowledge of the United States and initiate exploration in areas deemed to have potential for undiscovered critical minerals.

Media Alert: The Montana Bureau of Mines and Geology and U.S. Geological Survey announce low-level helicopter flights in Southwest Montana

USGS (, 6 July 2023

SGL Flying Large Survey over Iowa, Nebraska, Minnesota and South Dakota

May 2023 - Sander Geophysics is thrilled to have been selected to fly a magnetic and radiometric fixed wing survey for the USGS over the Spirit Lake tectonic zone, which encompasses parts of northwest Iowa, northeast Nebraska, southwest Minnesota and southeast South Dakota. According to the USGS, this survey will better map the Precambrian rocks at depth and help to evaluate the potential for critical mineral deposits in the area. Once the final data compilation is complete the information will be made public.

Media Alert: The USGS and agencies from four states announce low-level airplane flights in the Central Great Plains

USGS (, 10 May 2023

SGL Survey Uncovers Critical Minerals Potential in Maine

November 2022 - An airborne magnetic and radiometric survey flown by Sander Geophysics in northern Maine has resulted in the discovery of critical minerals that include the rare earth elements niobium and zirconium, after follow-up groundwork. The findings have been published in the journal, Economic Geology and are summarized in a recent USGS press release. As reported in the press release, "The project has resulted in rewriting of the geologic and tectonic history of the region, and the Earth MRI airborne geophysical survey greatly helps the bedrock mapping and assessment of mineral potential”.

Scientists Discover Significant Critical Minerals Potential in Northern Maine

USGS (, 10 November 2022

SGL Begins Flying Large Multi-Parameter Survey in Oman

August 2022 - Sander Geophysics is very pleased to have started flying this airborne electromagnetic, magnetic, radiometric and gravity survey over Oman. Data is being gathered simultaneously using SGL's de Havilland DHC-6 Twin Otter, registration C-GSGF.

Sander Geophysics begins flying airborne survey in Oman

Omani News Agency (@OmanNewsAgency), 22 August 2022

SGL Flying a Large Fixed Wing and Helicopter Survey over the Northeastern US

August 2022 - Sander Geophysics is pleased to have been selected to fly a large magnetic and radiometric fixed wing and helicopter survey over the northeastern US (includes northern Maryland, southern Pennsylvania, northeastern West Virginia and northernmost Virginia). This survey will be flown between 300 to 1,000 feet above the ground as part of the USGS Earth Mapping Resource Initiative (Earth MRI) project. This nationwide collaboration between the USGS and state geologists will enhance the fundamental knowledge of the geologic framework of the area and according to the USGS the benefits provided include the ability to evaluate natural resources, groundwater and earthquake hazards.

Flights above Maryland, Pennsylvania, Virginia, and West Virginia to map geology

USGS (, 10 August 2022

Flying Low: U.S. Geological Survey to do aerial measurements over Pennsylvania

abc27 News (, 11 August 2022