Results 51 to 60 of about 976 (183)

Mobilisation and Bioavailability of Arsenic Around Mesothermal Gold Deposits in a Semiarid Environment, Otago, New Zealand

The Scientific World Journal, 2002
Arsenopyrite (FeAsS) is the principal arsenic (As) mineral in mineralised mesothermal veins (typically 5,000 mg/kg As) in southeastern New Zealand. Groundwater in contact with arsenopyrite-bearing rocks has elevated As concentrations (up to 0.1 mg/l ...
D. Craw, L. Pacheco
doaj   +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

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

Re-Os Isotopic Dating of Arsenopyrite from Auriferous Quartz Vein-type Gold Deposits in the Southwestern Margin of Jiangnan Orogen

Yankuang ceshi, 2016
Quartz vein-type gold deposits of Southeastern Guizhou Province in the southwestern margin of Jiangnan Orogen, which are typical orogenic gold deposits, are hosted in Neoproterozoic Banxi Group sub-greenschist facies metamorphic rocks.
GU Shang-yi, DU Ding-quan, FU Yong, SUN Shi-jun, LI Chao   +4 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

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

New orogenic type gold occurrences in the Uyanga ore knot (Central Mongolia)

Mongolian Geoscientist, 2018
The Uyanga ore knot district of the Khangay metallogenic zone are hosted by the lower-middle Devonian volcanogenic-sedimentary Erdenetsogt formation.
Ariunbileg Sodov, Olga Gaskova, Altansukh Gankhuyag, Dagva-Ochir Lkhagvasuren, Otgonbaatar Dorjsuren, Oyunchimeg Tumen-Ulzii, Battushig Altanbaatar   +6 more
doaj   +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

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