Results 41 to 50 of about 2,528 (185)

Automated Spectral Deconvolution for Quantitative Dye Tracing

Water 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, Seonkyoo Yoon, Jana Kramer, John D. Barry, Scott C. Alexander, Peter K. Kang   +5 more
wiley   +1 more source

Magnetotelluric Exploration of Zn Pb Mineralization in Stonepark, Irish Midlands

Geophysical 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, A. Platz, O. Ritter, U. Weckmann, M. Holdstock, P. Rieger, V. Susin, A. Melo, K. Torremans, D. Kiyan   +9 more
wiley   +1 more source

EFFECTIVE SEPARATION OF GALENA CONCENTRATE FROM THE MIXTURE OF GALENA AND QUARTZ BY TABLING

Global Journal of Engineering Research, 2002
La séparation d'un concentré de galène (sulfure de plomb) propre du mélange de galène et de quartz par une opération de dépôt a été étudiée. Le minerai de plomb nigérian était composé principalement de sulfure de plomb et de quartz. La méthode de tarage a été utilisée sur le minerai comme méthode de concentration par gravité.
Ojo, O., Olaleye, B.M.
openaire   +3 more sources

Mass Addition to Timpanogos Rock Glacier: Debris‐Covered Snow and the Importance of Interannual Variability in Headwall Erosion and Climate

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract The processes of ice incorporation into rock glaciers have been difficult to quantify in both permafrost and non‐permafrost conditions. Here, we develop a numerical model that regardless of the presence of permafrost, reveals how debris eroded from hillslopes and deposited on snow can add ice mass to rock glaciers in pulses.
Isaiah Davies, Leif S. Anderson, Michael S. Thorne, Matthew Olson, Jeff Munroe, Matthew Morriss   +5 more
wiley   +1 more source

Mechanistic Interpretation for Xanthate Adsorption onto Galena through Electrochemical Impedance Spectrum Fitting by a Differential Evolution Algorithm

International Journal of Electrochemical Science, 2020
This work is focused on understanding the interaction of native galena minerals and xanthate as well as their influence on the process of mineral separation by flotation and leaching techniques.
E.D. Moreno-Medrano, Valentín Osuna-Enciso, N. Casillas, M.A. Pedroza-Toscano, A. Gutierrez-Becerra, E.R. Larios-Durán   +5 more
doaj   +1 more source

‘You Load Sixteen Tons, What Do You Get?’. The Jodłowno Hoard (Pomerania, Poland) as Evidence of Long‐Distance Contacts in the Early Iron Age

Archaeometry, Volume 68, Issue 2, Page 193-211, April 2026.
ABSTRACT This study presents multifaceted analyses of metal artefacts from the Jodłowno Hoard (Northern Poland), revealing that the metal originated from Iberian polymetallic ore deposits. Transported as raw ingots via Atlantic maritime routes, this copper was reworked locally into regionally distinctive forms.
K. Nowak, P. Gan, Z. Stos‐Gale, K. Cywa, J. Karasiński   +4 more
wiley   +1 more source

Dual Role of Fe2+ in the Galena Flotation and Influence on Selective Separation

Adsorption Science & Technology, 2023
Fe ions, as one of the unavoidable metal ions, are present in flotation pulp as ferric and ferrous species, and the effect of ferric species on the flotation behavior of sulfide minerals has been widely discussed in the above literatures.
Bo Yang, Xiao Wang, Xian Xie, Zixuan Yang   +3 more
doaj   +1 more source

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

Phanerozoic veins of galena in the Åland rapakivi area, southwestern Finland [PDF]

Bulletin of the Geological Society of Finland, 1979
Some minor galena mineralizations are in part associated with clastic dykes of Cambrian sandstone in the Aland rapakivi area. Galena also occurs disseminated in greisen-type mineralizations.
L. Bergman, B. Lindberg
doaj   +1 more source

Long‐Term Storage of Meteoric Water in the Variscan Basement: Stable Isotope Constraints (δD–δ18O)

Terra Nova, Volume 38, Issue 2, Page 116-123, April 2026.
ABSTRACT F‐Ba‐Pb‐Zn (±Ag) deposits near the unconformity between the Armorican and Aquitaine basins formed by mixing surface waters and brines with fluid ascending from the basement. To better constrain the source of this fluid and the conditions of mixing, we analyzed the hydrogen (δDwater) and oxygen (δ18Owater) isotopic composition of water trapped ...
Loïc Bouat, Pierre Strzerzynski, Véronique Gardien   +2 more
wiley   +1 more source