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Volume 10
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10.3390/min10080724
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Article

pXRF Measurements on Soil Samples for the Exploration of an Antimony Deposit: Example from the Vendean Antimony District (France)

by
Bruno Lemière
1,*,
Jeremie Melleton
1,
Pascal Auger
1,
Virginie Derycke
1,
Eric Gloaguen
1,
Loïc Bouat
2,
Dominika Mikšová
3,
Peter Filzmoser
3 and
Maarit Middleton
4
1
BRGM, F-45060 Orléans, France
2
Université du Maine, Géosciences, F-72000 Le Mans, France
3
CSTAT—Computational Statistics, Vienna University of Technology, 1040 Wien, Austria
4
GTK (Geological Survey of Finland), Environmental Solutions, 96101 Rovaniemi, Finland
*
Author to whom correspondence should be addressed.
Minerals 2020, 10(8), 724; https://doi.org/10.3390/min10080724
Submission received: 24 July 2020 / Accepted: 8 August 2020 / Published: 18 August 2020
(This article belongs to the Special Issue Critical Metals in Hydrothermal Ores: Resources, Recovery, and Challenges)
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Abstract

Mineral exploration is increasingly challenging in inhabited areas. To evaluate the potential of soil analysis by pXRF (portable X-ray fluorescence) as a low-footprint exploration technique, we revisited a historic Sb district in an agricultural area and performed shallow-soil sampling (Ah and B horizons) along profiles across known veins to capture the endogenic geochemical anomaly signals. Despite an expected bias between pXRF measurements and laboratory analyses, the former effectively located the Sb veins, especially when using their multi-element capabilities. Composition data processing (CoDa) and horizon-selective sampling significantly improved the method’s efficiency. On-site measurements allow dynamic sampling and mapping, helping with faster, cost-effective sample selection for further laboratory investigations. Based on this case study, where similar geochemical patterns were obtained for both horizons, application of an on-site approach to a humic horizon can increase survey efficiency and decrease impacts.
Keywords: pXRF; antimony; mineral exploration; Vendean antimony district pXRF; antimony; mineral exploration; Vendean antimony district

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MDPI and ACS Style

Lemière, B.; Melleton, J.; Auger, P.; Derycke, V.; Gloaguen, E.; Bouat, L.; Mikšová, D.; Filzmoser, P.; Middleton, M. pXRF Measurements on Soil Samples for the Exploration of an Antimony Deposit: Example from the Vendean Antimony District (France). Minerals 2020, 10, 724. https://doi.org/10.3390/min10080724

AMA Style

Lemière B, Melleton J, Auger P, Derycke V, Gloaguen E, Bouat L, Mikšová D, Filzmoser P, Middleton M. pXRF Measurements on Soil Samples for the Exploration of an Antimony Deposit: Example from the Vendean Antimony District (France). Minerals. 2020; 10(8):724. https://doi.org/10.3390/min10080724

Chicago/Turabian Style

Lemière, Bruno, Jeremie Melleton, Pascal Auger, Virginie Derycke, Eric Gloaguen, Loïc Bouat, Dominika Mikšová, Peter Filzmoser, and Maarit Middleton. 2020. "pXRF Measurements on Soil Samples for the Exploration of an Antimony Deposit: Example from the Vendean Antimony District (France)" Minerals 10, no. 8: 724. https://doi.org/10.3390/min10080724

APA Style

Lemière, B., Melleton, J., Auger, P., Derycke, V., Gloaguen, E., Bouat, L., Mikšová, D., Filzmoser, P., & Middleton, M. (2020). pXRF Measurements on Soil Samples for the Exploration of an Antimony Deposit: Example from the Vendean Antimony District (France). Minerals, 10(8), 724. https://doi.org/10.3390/min10080724

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