A multidisciplinary UAV- And ground-geophysical mapping of complex mineralisations in an inter-tidal coastal Zone, Brittany (France)
| Autor: | Eric Gloaguen, Johannes Linde, Guillaume Martelet, T. Mack Rasmussen, E. Lima Simões da Silva, Arne Døssing |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
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| Zdroj: | Døssing, A, Martelet, G, Rasmussen, T M K, Gloaguen, E, Lima Simões da Silva, E & Linde, J 2020, A multidisciplinary UAV-And ground-geophysical mapping of complex mineralisations in an inter-tidal coastal Zone, Brittany (France) . in Proceedings of the 3rd Conference on Geophysics for Mineral Exploration and Mining . European Association of Geoscientists and Engineers, pp. 1-5, 3rd Conference on Geophysics for Mineral Exploration and Mining (NSG2020), 07/12/2020 . https://doi.org/10.3997/2214-4609.202020146 |
| DOI: | 10.3997/2214-4609.202020146 |
| Popis: | Getting reliable geophysical and geological 3D models of the subsurface is an absolute necessity for successful resources exploration. Here, we show how novel UAV-borne geophysical mapping can be extremely valuable for mapping potential new exploration areas that are difficult to access by foot, such as hard rock inter-tidal zones and boulder beaches. We show the results from a multidisciplinary geophysical campaign of highly magnetic dikes and granites along a boulder beach in Brittany, France. Our mapping is carried out using customized geophysical sensor systems with high quality sensors. These include in particular a special designed UAV-towed magnetometer bird and multispectral system for large area mapping purposes. The UAV-borne mapping is supplemented by ground-based gamma-ray spectrometry data and ground-based magnetic gradiomety data. The results clearly demonstrate the value of UAV-borne systems in difficult areas as compared to traditional mapping methods as well as the value of combining various geophysical sensors for exploring the economic geology. All UAV-borne data were collected during two days, while the groundbased data - covering only the inner and dry part of the beach - were collected over seven days. |
| Databáze: | OpenAIRE |
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