Results 61 to 70 of about 13,713 (230)

Ediacara Obscura: Unveiling Hidden Magnetisations in the Fen Complex, Southern Norway

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 5, May 2026.
Abstract Paleomagnetic directions found in Ediacaran (635–539 Ma) rocks are widely dispersed, which has led to conflicting hypotheses about tectonic regimes and geomagnetic field behavior during this period, and raised doubts about the fidelity of the paleomagnetic record.
Justin A. D. Tonti‐Filippini   +8 more
wiley   +1 more source

Automated Spectral Deconvolution for Quantitative Dye Tracing

open access: yesWater Resources Research, Volume 62, Issue 5, May 2026.
Abstract Dye tracing using fluorescent dyes is an essential tool for investigating flow path distribution, conduit networks, and connectivity in complex hydrogeologic systems, such as karst and fractured aquifers. The breakthrough curve, derived from the dye concentration measured at a downstream location with near‐continuous time resolution, provides ...
Fabian Quichimbo‐Miguitama   +5 more
wiley   +1 more source

Mineralogy of the sulfate-sulfide mineralizations at the Garus District; NW of Iran Mineralogía de las mineralizaciones sulfato-sulfurosas del Distrito Garus, NW de Irán

open access: yesMinería y Geología, 2011
There are some vein type sediment hosted sulfate-sulfide mineralizations in Garus district, NW of Iran. They occur in a (shale) host rock of Precambrian age and they show evidence of some deformation.
Bahram Vusuq   +2 more
doaj  

Magnetotelluric Exploration of Zn Pb Mineralization in Stonepark, Irish Midlands

open access: yesGeophysical Prospecting, Volume 74, Issue 4, May 2026.
ABSTRACT To meet the increasing demand for raw materials and to foster the energy transition, advances in exploration techniques are required that extend capabilities to deeper and/or more densely populated areas while having a low environmental and societal impact.
K. Tietze   +9 more
wiley   +1 more source

Comparative Microstructure Characteristics of Synthesized PbS Nanocrystals and Galena

open access: yesSci
Lead sulfide (PbS) on the nanoscale was synthesized via a chemical route at room temperature using lead nitrate {Pb(NO3)2} and sodium sulfide (Na2S). The Na2S was prepared at ~105 °C using sodium hydroxide (NaOH) and sulfur (S) powder.
Ehab AlShamaileh   +6 more
doaj   +1 more source

The Effect of Time, Frother and Collector Concentration on the Purification of Ruwai Galena Ore via Agitated Froth Flotation: A Comparative Study with Column Flotation

open access: yesJournal of Applied Science and Engineering
Ruwai galena ore contains a high amount of lead (Pb) and a higher silver (Ag) content than similar ores. It indicates that Ruwai galena ore has excellent potential to be utilized as a prospective source of Ag .
Kevin Cleary Wanta   +6 more
doaj   +1 more source

Las mineralizaciones filonianas de fluorita (galena) del Calar de San José (sierra de Baza, cordilleras Béticas)

open access: yesEstudios Geologicos, 1984
El distrito de F-(Pb, Zn, Ba) de la Sierra de Baza (al SE de España) está constituido fundamentalmente por mineralizaciones estratiformes y estratoligadas de fluorita-(galena), enclavadas en niveles carbonatados del Ladiniense Superior-Carniense.
J. Torres-Ruiz, F. Delgado
doaj   +1 more source

Research on Process Mineralogy of a Refractory Lead-zinc Ore in Chengde, Hebei and Analysis of Factors Affecting Flotation

open access: yesKuangchan zonghe liyong
Based on fluorescence spectrum analysis and chemical multi-element analysis, through the process mineralogy study of a refractory lead-zinc mine in Hebei, the mineral composition, structure, main mineral embedding characteristics of the ore and the ...
Guanglin QIN
doaj   +1 more source

New insights into the reagent-removal mechanism of sodium sulfide in chalcopyrite and galena bulk flotation: a combined experimental and computational study

open access: yes, 2020
To remove the adsorbed reagent of copper–lead mixed concentrate in bulk flotation, this study investigates the removal effect of sodium sulfide (SS) through micro-flotation, adsorption tests, equilibrium speciation analysis, electrochemical analysis, and
Run-qing Liu   +7 more
semanticscholar   +1 more source

Mineralogical, textural, structural and geochemical aspects of Nakhlak lead mine, Isfahan

open access: yesJournal of Economic Geology, 2011
Nakhlak lead mine is located at the Nakhlak mountain 55 km NE of Anarak town in Isfahan province. The mineralogy is simple; galena and barite are the main primary minerals and cerussite is the main secondary mineral.
Mohammad Ali Jazi, Jamshid Shahabpour
doaj   +1 more source

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