Results 71 to 80 of about 39,824 (274)

Oxygen application to chloride leaching of complex sulfide ores [PDF]

, 1987
The study investigates leaching of complex sulfide ores with simultaneous regeneration of the leaching solution and removal of dissolved iron to balance the iron concentration in the leaching process.
Chou, Kuo Tung
core  

Contamination of surface waters by mining wastes in the Milluni Valley (Cordillera Real, Bolivia): Mineralogical and hydrological influences [PDF]

, 2008
This study is one of very few dealing with mining waste contamination in high altitude, tropical-latitude areas exploited during the last century. Geochemical, mineralogical and hydrological characterizations of potentially harmful elements (PHEs) in ...
Isaure, Marie-Pierre, Probst, Anne, Roulet, Marc, Salvarredy-Aranguren, Matias Miguel   +3 more
core   +3 more sources

Soil background effects on UAS and proximal remote sensing‐derived vegetation indices

Agronomy Journal, Volume 118, Issue 1, January/February 2026.
Abstract Exposed soil, due to low vegetation cover or in open canopy crops, influences scene reflectance derived from remotely sensed data. An experiment was conducted in College Station, TX, to investigate the potential of six unmanned aerial systems (UASs)‐derived and proximally sensed vegetation indices (VIs) in suppressing soil background ...
Rahul Raman, Haly L. Neely, Nithya Rajan, Jeffrey Siegfried, Amir M. H. Ibrahim, Curtis B. Adams, Robert G. Hardin   +6 more
wiley   +1 more source

Hydroxynaphthoic acid isomer sorption onto goethite [PDF]

Journal of Colloid and Interface Science, 2009
This study used batch and attenuated total reflectance-Fourier-transform infrared (ATR-FTIR) flow-through techniques, along with computational chemistry, to probe the sorption of hydroxynaphthoic acid (HNA) isomers at the goethite-water interface.
Ellen M, Cooper, Dharni, Vasudevan
openaire   +2 more sources

A revised scheme for the reactivity of iron (oxyhydr)oxide minerals towards dissolved sulfide [PDF]

, 2004
The reaction between dissolved sulfide and synthetic iron (oxyhydr)oxide minerals was studied in artificial seawater and 0.1 M NaCl at pH 7.5 and 25°C. Electron transfer between surface-complexed sulfide and solid phase Fe(III) results in the oxidation ...
Bartlett, Berner, Biber, Bigham, Bondietti, Borggaard, Canfield, Canfield, Canfield, Canfield, Canfield, Carlson, Chambers, Chen, Cline, Cornell, Cornell, Crosby, Davis, Dos Santos Afonso, Fitzpatrick, Fredrickson, Fuller, Gagnon, Haese, Hering, Heron, Hurtgen, Jørgensen, Kostka, Krom, Krom, LaKind, Litter, Lovley, Lovley, Luther III, Luther III, Michael D. Krom, Millero, Morse, Morse, Morse, O’Brien, Peiffer, Postma, Poulton, Poulton, Poulton, Poulton, Pyzik, Raiswell, Raiswell, Rickard, Robert Raiswell, Roden, Rysgaard, Schwertmann, Schwertmann, Schwertmann, Schwertmann, Sidhu, Simon W. Poulton, Stolz, Stookey, Stucki, Stumm, Suter, Taylor, Thamdrup, Thamdrup, Torrent, Urban, Viollier, West, Yao, Zhang, Zinder   +77 more
core   +1 more source

Global Copper Deposit Dataset: A New Open‐Source Database for Advanced Data Analysis and Exploration Targeting

Geoscience Data Journal, Volume 13, Issue 1, January 2026.
We build a new, open‐source global copper deposit dataset (GCDD), facilitating AI‐driven data analysis for exploration targeting and improving our understanding of copper mineralizing systems and their mappable expressions. The GCDD hosts information about 1483 copper deposits worldwide, capturing key deposit attributes such as location, genetic type ...
Bin Wang, Renguang Zuo, Oliver P. Kreuzer   +2 more
wiley   +1 more source

A study of sorption of cadmium by goethite in aqueous solution

Bulletin of the Chemical Society of Ethiopia, 2002
Investigation has been carried out on the potential of a locally sourced goethite for the removal of cadmium ion from aqueous solutions using batch equilibration technique. The maximum uptake of cadmium is 6.4  10-2 mg/g-goethite.
N. Salami, F.A. Adekola
doaj  

Deepening inside the pictorial layers of Etruscan sarcophagus of Hasti Afunei: An innovative micro-sampling technique for Raman/SERS analyses [PDF]

, 2019
The Hasti Afunei sarcophagus is a large Etruscan urn, made up of two chalky alabaster monoliths. Dated from the last quarter of the third century BC, it was found in 1826 in the small town of Chiusi (Tuscany- Il Colle place) by a landowner, Pietro Bonci ...
Bianco, Armandodoriano, Bruno, Maurizio, Ciccola, Alessandro, Gagliano Candela, Rossella, Lombardi, Livia, Pellegrino, Lorella, Postorino, Paolo, Serafini, Ilaria   +7 more
core   +1 more source

Temperature effects on vanadium speciation and adsorption to biochar alone and biochar–metal oxide nanoparticle composites

Journal of Environmental Quality, Volume 55, Issue 1, January/February 2026.
Abstract Vanadium (V) is a potentially toxic metal widely distributed in the environment. This study investigates temperature effects on V adsorption and speciation in biochar (BC) and BC–metal oxide composites under conditions relevant to contaminated soils in temperate climates.
Dileep Singh, Srimathie Indraratne, Bhavya Anil, Melissa Haak, Darshani Kumaragamage, Doug Goltz   +5 more
wiley   +1 more source

Use of Goethite as an anti-corrosive Pigment [PDF]

Materials Research
Carbon steel is widely used as a metallic material, despite its limited corrosion resistance. To enhance its anti-corrosion properties, organic coatings such as epoxy are commonly applied due to their barrier mechanism.
Matheus Orlandi Pessoa, Jorgimara de Oliveira Braga, Fernando Cotting   +2 more
doaj   +1 more source