"Geoscan" completed a project for aeromagnetic shooting from a drone in the jungle of Laos

2024: Aeromagnetic Survey

Specialists of the Geoskan Group of Companies conducted an aeromagnetic survey commissioned by the Lao company ATLANTIC. An area of ​ ​ 55 square meters. km with dense jungle and sheer rocks, where ground measurements were impossible, with the help of BVS was examined in 7 days. Geoskan announced this on February 22, 2024.

source = Geoscan

Aerial photography was previously carried out to create a digital terrain model that allows you to determine the features of the landscape and choose a safe altitude for the flight of a quadcopter with a magnetometer. On average, magnetic exploration was carried out at a distance of 50 meters from the ground, increased, if necessary, to 70 (in areas with power lines), which was taken into account during subsequent data processing.

In addition to the rugged jungle, which makes ground surveys almost impossible, the sites had a fairly large layer of sediment formed by weathering of different rocks or leaf decay and containing no minerals. To get to deeper bedrock, where there may be PI deposits, you need to excavate tens of meters, and without an exact understanding of where to dig, the work will take a lot of time and money. Aeromagnetic shooting with ALS allows you to accurately determine places with magnetic anomalies where it is worth conducting further searches. And at the same time, do it quickly and effectively: due to the steep slopes on the sites, it is impossible to perform more than 200 meters of the profile of ground magnetic shooting per day, but we examined 70-80 pages each. km, "said Dmitry Goglev, project manager for aeromagnetic photography from the BVS of the Geoskan Group of Companies.

All obtained data underwent preliminary (office) processing, during which maps of the abnormal magnetic field and vertical gradient were created. The interpreter performed an analysis of these data, comparing them with information from local geologists, and described the structures, possible formations and prospects in the areas. As a result, a detailed report was provided to the customer to enable ATLANTIC to identify potential production locations.