Application of the Support Vector Regression Method for Turbidity Assessment with MODIS on a Shallow Coral Reef Lagoon (Voh-Koné-Pouembout, New Caledonia)

Autor: Guillaume Wattelez, Cécile Dupouy, Jérôme Lefèvre, Sylvain Ouillon, Jean-Michel Fernandez, Farid Juillot

Publikováno v: Water, Vol 9, Iss 10, p 737 (2017)

Particle transport by erosion from ultramafic lands in pristine tropical lagoons is a crucial problem, especially for the benthic and pelagic biodiversity associated with coral reefs. Satellite imagery is useful for assessing particle transport from

Externí odkaz: https://doaj.org/article/ef61a63eb4b64c838e3db50a1ade11f4

Comparative Cr and Mn speciation across a shore-to-reef gradient in lagoon sediments downstream of Cr-rich Ferralsols upon ultramafic rocks in New Caledonia

Autor: Benjamin Moreton, Pauline Merrot, Jessica Brest, Farid Juillot, Guillaume Morin, Isabelle Kieffer, Jean-Michel Fernandez, Olivier Radakovitch, Eric Viollier, Pierre Le Pape, Nicolas Menguy, Pierre Lefebvre

Publikováno v: Journal of Geochemical Exploration
Journal of Geochemical Exploration, 2021, 229, pp.106845. ⟨10.1016/j.gexplo.2021.106845⟩

International audience; Ferralsols upon ultramafic rocks are among the most Cr-enriched soils at the Earth surface. Weathering and erosion of these soils represents a major source of Cr for coastal sediments downstream of ultramafic settings. Althoug

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7a09016556935114004b9b18a891e05
https://hal.science/hal-03852110

Biogeochemical response of New Caledonia lagoon sediments to tropical events: a numerical modeling approach

Autor: Stanley Nmor, Pauline Merrot, Farid Juillot, Eric Viollier, Jean-Michel Fernandez, Guillaume Morin, Olivier Radakovitch, Benjamin Moreton

Publikováno v: GOLDSCHMIDT, GOLDSCHMIDT
GOLDSCHMIDT, GOLDSCHMIDT, 2021, ONLINE, France

International audience; New Caledonia main island is made of ultramafic rocks largely covered by metal-rich laterites. Mining activity enhances erosion and detrital deposit to the lagoon coastline. This anthropogenic process is itself enhanced by tro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::814871092d4ce5fabb8daf989c02f652
https://doi.org/10.7185/gold2021.4612

Nickel and iron partitioning between clay minerals, Fe-oxides and Fe-sulfides in lagoon sediments from New Caledonia

Autor: Jessica Brest, Marine Blondeau, Benjamin Moreton, Jean-Michel Guigner, Jean-Michel Fernandez, Vincent Noel, John R. Bargar, Pauline Merrot, Farid Juillot, Eric Viollier, Pierre Lefebvre, Nicolas Menguy, Guillaume Morin

Publikováno v: Science of the Total Environment
Science of the Total Environment, 2019, 689, pp.1212-1227. ⟨10.1016/j.scitotenv.2019.06.274⟩
Science of the Total Environment, Elsevier, 2019, 689, pp.1212-1227. ⟨10.1016/j.scitotenv.2019.06.274⟩

In the tropics, continental weathering and erosion are major sources of trace metals towards estuaries and lagoons, where early diagenesis of sediments may influence their mobility and bioavailability. Determining trace metals speciation in tropical

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8464bbc26615faf948c7870b044fd83d
https://pubmed.ncbi.nlm.nih.gov/31466160

Benthic foraminifera records of complex anthropogenic environmental changes combined with geochemical data in a tropical bay of New Caledonia (SW Pacific)

Autor: Jean-Pierre Debenay, Jean-Michel Fernandez

Publikováno v: Marine Pollution Bulletin. 59:311-322

During the 1950s, open-cast mining led to an increasing input of heavy-metal-rich terrigenous particles in the bays near Nouméa, detected by geochemical and sedimentological analyses. Even though most of terrigenous metal is unavailable, an impact o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4dcc9782a3c0e7909ca16299bff888e4
https://doi.org/10.1016/j.marpolbul.2009.09.014