Articles | Volume 7, issue 2
https://doi.org/10.5194/soil-7-743-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/soil-7-743-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Combining colour parameters and geochemical tracers to improve sediment source discrimination in a mining catchment (New Caledonia, South Pacific Islands)
Virginie Sellier
CORRESPONDING AUTHOR
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), UMR
8212 (CEA/CNRS/UVSQ-IPSL), Université Paris-Saclay, Gif-sur-Yvette, France
Oldrich Navratil
Laboratoire Environnement Ville Société (EVS), Université
Lumière Lyon 2, UMR 5600 (CNRS), Lyon, France
John Patrick Laceby
Alberta Environment and Parks, Calgary, Alberta, Canada
Cédric Legout
Institut des Géosciences de l'Environnement (IGE), UMR 5001,
Grenoble, France
Anthony Foucher
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), UMR
8212 (CEA/CNRS/UVSQ-IPSL), Université Paris-Saclay, Gif-sur-Yvette, France
Michel Allenbach
LIVE-EA 4243, Université de Nouvelle-Calédonie & LABEX
Corail, Nouméa, Nouvelle-Calédonie, France
Irène Lefèvre
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), UMR
8212 (CEA/CNRS/UVSQ-IPSL), Université Paris-Saclay, Gif-sur-Yvette, France
Olivier Evrard
Laboratoire des Sciences du Climat et de l'Environnement (LSCE), UMR
8212 (CEA/CNRS/UVSQ-IPSL), Université Paris-Saclay, Gif-sur-Yvette, France
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Short summary
Open-cast mining increases soil erosion and transfer of sediment in river systems. Providing a methodology to better understand the sediment dynamic of these catchments is essential to manage this pollution. In this study, different tracers such as elemental geochemistry or colour properties were tested to trace and quantify the mining source contributions to the sediment inputs in the Thio River catchment, one of the first areas exploited for nickel mining in New Caledonia (i.e. since 1880).
Open-cast mining increases soil erosion and transfer of sediment in river systems. Providing a...