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Communication dans un congrès

Airborne gamma-ray spectrometry: Potential for regolith-soil mapping and characterization

Abstract : Airborne gamma-ray spectrometry provides continuous regional geochemical information (i.e. ground concentrations of Potassium (K), Thorium (Th) and Uranium (U)). In the frame of a collaboration between BRGM (the French geological survey) and INRA (the French soil institute), joint research was achieved to recognize the effect of weathering and to assess soil variability using gamma-ray data. We first document that gamma signals are clearly influenced by weathering and pedogenetic evolution. Zonal statistics performed between existing soil maps and airborne gamma-spectrometric data evidence, for a given substratum, variations of radiogenic elements consistent with soil sequences. The second result obtained demonstrates, in a sedimentary environment, the ability of gamma-spectrometric data to predict regional regolith-soil parameters. Through multiple linear regressions between ground parameter measurements and airborne gamma data, gamma-spectrometric information was clearly identified as a covariate of ground physical and chemical properties.
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Communication dans un congrès
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Déposant : Migration Prodinra <>
Soumis le : mercredi 3 juin 2020 - 00:56:51
Dernière modification le : mardi 21 juillet 2020 - 04:00:38


Distributed under a Creative Commons Paternité - Partage selon les Conditions Initiales 4.0 International License


  • HAL Id : hal-02741230, version 1
  • PRODINRA : 411129
  • WOS : 000341268700066



Guillaume Martelet, P. Nehlig, Dominique Arrouays, François Messner, B. Tourliere, et al.. Airborne gamma-ray spectrometry: Potential for regolith-soil mapping and characterization. 1. GlobalSoilMap Conference, Oct 2013, Orléans, France. ⟨hal-02741230⟩



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