Results 61 to 70 of about 4,445 (173)

An Archaeometallurgical Investigation on Some Archaeological Metal Finds From the Sasanian Site of Jahāngir, Western Iran

Archaeometry, Volume 68, Issue S1, Page S103-S115, April 2026.
ABSTRACT Twelve metal artifacts from recent excavations at the Sasanian archaeological site of Jahāngir in western Iran have been analyzed. These items include both decorative and utilitarian artifacts. The samples were examined using micro‐X‐ray fluorescence (μ‐XRF), scanning electron microscopy with energy‐dispersive X‐ray spectroscopy (SEM‐EDS), and
Omid Oudbashi, Leila Khosravi, Morteza Habibzadeh   +2 more
wiley   +1 more source

Screening of Native Plant Species in the Artisanal Gold Mining Sites of Doko, Guinea: Perspectives for Phytoremediation

CLEAN – Soil, Air, Water, Volume 54, Issue 3, March 2026.
This study focuses on phytoremediation in a gold mining‐contaminated area in Doko, Guinea. Plant, soil, and rhizospheric soil samples were collected and subjected to physicochemical analyses to quantify heavy metal content. Biological indicators: bioconcentration factor (BCF), translocation factor (TF), and biological accumulation coefficient (BAC ...
Ahmed Amara Konaté, Joseph Hébélamou, Alassane Diallo, Khaled Gemail, Said El Hasnaoui, Abdelaziz Smouni, Mouna Fahr   +6 more
wiley   +1 more source

Leaching Kinetics of Sulfides from Refractory Gold Concentrates by Nitric Acid

Metals, 2019
The processing of refractory gold-containing concentrates by hydrometallurgical methods is becoming increasingly important due to the depletion of rich and easily extracted mineral resources, as well as due to the need to reduce harmful emissions from ...
Denis A. Rogozhnikov, Andrei A. Shoppert, Oleg A. Dizer, Kirill A. Karimov, Rostislav E. Rusalev   +4 more
doaj   +1 more source

Aquatic moss precipitates metals in the presence of a specific endophytic microbiome

iMetaOmics, Volume 3, Issue 1, March 2026.
Harnessing moss–microbe interactions for metal removal. Schematic representation of aquatic moss Warnstorfia fluitans and its microbial symbionts in the remediation of metal‐contaminated waters. Amplicon sequencing and advanced microscopy revealed microbial community composition and role of moss symbionts in metal accumulation within the moss tissues ...
Kaisa Lehosmaa, Janne J. Koskimäki, Olga Podolich, Saija H. K. Ahonen, Anna Liisa Ruotsalainen, Piippa R. Wäli, Maria Greger, Urooj Rashid, Namrata Baruah, Jaanika Edesi, Annamari Markkola, Sepideh Kiani, Heini Postila, Katharina Kujala, Anna‐Kaisa Ronkanen, Anna Maria Pirttilä   +15 more
wiley   +1 more source

Inferring Cenozoic Cover Thickness and Bedrock Sedimentary Material in 3D From Geophysical Data Using Machine Learning Algorithms: A Case Study in the Lockington Region, Victoria, Australia

Earth and Space Science, Volume 13, Issue 3, March 2026.
Abstract This study presents a supervised machine learning approach to constructing a 3D geological model for the Lockington area in Victoria, Australia, by integrating borehole observations, geophysical surveys (magnetic, gravity, and radiometric), and elevation data.
Limin Xu, Eleanor C. R. Green, Mark A. McLean   +2 more
wiley   +1 more source

Thermodynamic Behavior of Pyrite and Arsenopyrite in Preoxidation for Chlorination Leaching of Refractory Gold Concentrate

Journal of Chemistry
Recently, preoxidation is an effective pretreatment method of refractory gold ore, which has been widely used due to the high desulfurization, arsenic removal, low environmental pollution, and rapid reaction rate.
Chang Sok Kim, Un Chol Han, Hyok Sin, Su Rim Hwang, Jong Min Wang   +4 more
doaj   +1 more source

Separation of pyrite from arsenopyrite by flotation [PDF]

, 1992
This thesis reports investigations into the flotation separation of pyrite from arsenopyrite using xanthates and the new collectors Fl, S7 and F2B developed by Dow Chemical Company.
Sirkeci, Ayhan Ali
core  

Thermithiobacillus plumbiphilus AAFK—Arsenic-Resistant Bacteria Isolated from Arsenopyrite Material

Microbiology Research
Autotrophic sulfur-oxidizing bacteria can play a key role in the metal bioleaching from low-grade sulfide-containing ores. The most commonly used bioleaching group is presented with acidophilic bacteria of the order Acidithiobacillales.
Artem Shaikin, Anton Zvonarev, Mikhail Vainshtein, Tatiana Abashina   +3 more
doaj   +1 more source

Microwave‐Assisted Technologies in Gold Extraction: A Review

Engineering Reports, Volume 8, Issue 1, January 2026.
This review highlights how microwave‐assisted technologies enhance gold extraction by improving ore pretreatment, leaching, and recovery from waste materials. Key findings show increased recovery rates, reduced energy use, and potential for greener, more efficient gold processing.
B. Shahbazi
wiley   +1 more source

Electrochemical behaviour of the oxidative dissolution of arsenopyrite catalysed by Ag+ in 9K culture medium

, 2021
Arsenopyrite (FeAsS) is the most common As-containing sulphide mineral in gold deposits. Most auriferous arsenopyrite ores are refractory necessitating pre-treatments before gold extraction.
Li, Qian, Lyu, Xianjun, Sun, Shaokang, Jiang, Tao, He, Yinghe, Zhang, Yan, Liu, Xiaoliang   +6 more
core   +1 more source