Newsletter #377 | News
Exploration of mineral resources: BGR helicopter in southern Spain
German’s Federal Institute for Geosciences and Natural Resources (BGR) S-76 helicopter to carry out measuring flights in Southern Spain, October 17-28
BGR, October 13, 2016 - Hanover - The Federal Institute for Geosciences and Natural Resources (BGR) will carry out measuring flights with its research helicopter over the southern Spanish day-care areas Aznalcollar and Tharsis within the BGR project HYPGEO.
The aim of this project is to combine new methods from the Hyperspectralfernerkundung (HYP) and geophysics (GEO) for the exploration of mineral resources.
Two areas ( "Hazard Analysis, Remote Sensing" and "Geophysical Exploration - Technical Mineralogy") are involved in BGR.
Supracon AG from Jena is responsible for measuring probe technology on site.
The helicopter flights depart from the airport of La Juliana, south-west of Seville. The timetable of the flights over the Aznalcollar area is expected to extend from 17 October to 21 October 2016. The second investigation area around Tharsis is expected to be flown from 24 October to 28 October 2016. The measurement times over the areas can easily shift for technical reasons.
The Sikorsky S76-B helicopter used is the property of BGR and is operated by Helitec GmbH in Kassel.
The helicopter will be equipped with a gamma-ray spectrometer that is used to measure the natural radiation of the host rocks. Below the helicopter, a tuna-like probe is towed to measure the gradients of the earth's magnetic field with very high resolution and accuracy. The probe was developed by the Leibniz Institute for Photonic Technologies and Supracon AG, both from Jena. The gamma-ray spectrometer provides important surface information; The geomagnetic gradients are used to model substructures.
The helicopter flies at an altitude of about 80 to 100 meters above ground, the probe is towed about 40 meters under the helicopter.
The flights over both measurement areas will be completed in 2017 with further flights in which highly accurate hyperspectral cameras are to be used. In preparation for the first flight week 2016, profiles in azaleal collar and tharsis will be recorded with portable hyperspectral cameras.
The project concept is based on the idea of incorporating the already known structures over daily mining areas and expanding them in the area in order to track the mineralization in the existing geological environment. The combination of gamma-ray spectroscopy, geomagnetic gradients and hyperspectral images is to be evaluated for the exploration and exploration of mineral resources in semi-arid and arid regions.
The Federal Institute for Geosciences and Natural Resources is a technical and scientific supervisory authority in the business area of the Federal Ministry of Economics and Energy (BMWi).
Sikorsky S-76B D-HBGR ( BGR )
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BGR ( Federal Institute for Geosciences and Natural Resources )