Results 41 to 50 of about 2,449 (244)

Genesis of Tozlou Pb-Zn Occurrence (South of Zanjan): Evidence from Geology, Mineralization, and Geochemistry

Journal of Economic Geology, 2023
Tozlou Pb-Zn mineralization, ~250-300m long, and ~50m thick, is hosted by limestone units of the Qom Formation. The main mineralization zone occurred as vein-veinlets and vug infill textures, where mineralization is observed as Pb-Zn-bearing barite veins
Hamed Daneshvar, Hossein Kouhestani, Mir Ali Asghar Mokhtari, Afshin Zohdi   +3 more
doaj   +1 more source

Precipitation as the main mechanism for Cd(II), Pb(II) and Zn(II) removal from aqueous solutions using natural and activated forms of red mud

Environmental Advances, 2021
The red mud (RM) has been used as an alternative low-cost adsorbent to remove trace elements, with the adsorption onto sodalite surface described as the main removal mechanism for trace elements.
Fabiano Tomazini da Conceição, Mariana Scicia Gabriel da Silva, Amauri Antonio Menegário, Maria Lucia Pereira Antunes, Guillermo Rafael Beltran Navarro, Alexandre Martins Fernandes, Caetano Dorea, Rodrigo Braga Moruzzi   +7 more
doaj   +1 more source

Zinc Phosphate Nanoparticles Produced in Saliva

European Journal of Inorganic Chemistry, Volume 2020, Issue 38, Page 3654-3661, October 15, 2020., 2020
Water‐soluble zinc compounds are frequently added to food and cosmetic products as trace element supplements. They form nanoparticles upon contact with saliva. Their chemical and structural evolution was subsequently followed using small‐angle X‐ray scattering and X‐ray absorption spectroscopy.
Patrick E. J. Saloga, Glen J. Smales, Adam H. Clark, Andreas F. Thünemann   +3 more
wiley   +1 more source

Effect of episodic rainfall on aqueous metal mobility from historical mine sites [PDF]

, 2018
The increasing frequency and magnitude of episodic rainfall events may affect historical metal mining areas by remobilisation and deposition of metal-rich sediments and enhancing metal-rich run off, impacting river water quality.
Mortimer, RJG, Slack, R, Stockdale, A, Valencia-Avellan, M   +3 more
core   +2 more sources

Synchrotron X‐ray diffraction investigation of the surface condition of artefacts from King Henry VIII's warship the Mary Rose

Journal of Synchrotron Radiation, Volume 27, Issue 3, Page 653-663, May 2020., 2020
A new method using a high‐sensitivity X‐ray camera for a large‐range diffraction pattern is presented; it confirms the effectiveness of over 35 years of conservation treatment for brass artefacts from the Mary Rose.Synchrotron X‐ray diffraction (XRD) measured on the XMaS beamline at the ESRF was used to characterize the alloy composition and ...
Mark G. Dowsett, Pieter-Jan Sabbe, Jorge Alves Anjos, Eleanor J. Schofield, David Walker, Pam Thomas, Steven York, Simon Brown, Didier Wermeille, Mieke Adriaens   +9 more
wiley   +1 more source

Geothermometry obtained from the calcite twin and fluid inclusions in barite (Irankuh Pb-Zn deposit, Southwest of Isfahan) [PDF]

پترولوژی, 2017
The Irankuh mining district is located 20 km southwest of Isfahan and is geologically situated in Sanandaj - Sirjan zone and the lower Cretaceous sequence of Isfahan-Malayer ore mineralization area. The ore minerals are emplaced in the faulted contact of
Alijan Aftabi, Hengameh Hosseini-Dinani
doaj   +1 more source

Multianalysis Characterization of Mineralogical Properties of Copper‐Lead‐Zinc Mixed Ores and Implications for Comprehensive Recovery

Advances in Materials Science and Engineering, Volume 2020, Issue 1, 2020., 2020
Copper‐lead‐zinc mixed ore in Tibet, China, is a complex and refractory polymetallic ore resource; thus, ascertaining its mineralogical properties is very important for comprehensive recovery of valuable elements. In this work, the mineralogical properties of this copper‐lead‐zinc mixed ore have been characterized in detail following a ...
Qian Zhang, Shuming Wen, Qicheng Feng, Song Zhang, Wenlin Nie, Sakar Mohan   +5 more
wiley   +1 more source

Understanding the mobilisation of metal pollution associated with historical mining in a carboniferous upland catchment [PDF]

, 2017
Point and diffuse pollution from metal mining has led to severe environmental damage worldwide. Mine drainage is a significant problem for riverine ecosystems, it is commonly acidic (AMD), but neutral mine drainage (NMD) can also occur.
Mortimer, RJG, Slack, R, Stockdale, A, Valencia-Avellan, M   +3 more
core   +3 more sources

Concentrating Mill Wastes are the Source of Pollution of Human Environment and Natural Ecosystems with Heavy Metals: A Case Study in Primorsky Krai, Russian Federation

Journal of Chemistry, Volume 2020, Issue 1, 2020., 2020
Elevated contents of hazardous elements in natural ecosystems are often associated with human activities. Significant quantities of these elements, including heavy metals, are concentrated in tailings. The goal of the study was to assess the mineralogical and geochemical features of the old tailings of the decommissioned Krasnorechenskaya concentrating
Irina A. Tarasenko, Alexander V. Zin’kov, Aleksei S. Kholodov, Muhammad Riaz, Valeriy I. Petukhov, Nikita Y. Popov, Aristidis Tsatsakis, Kirill S. Golokhvast, James Barker   +8 more
wiley   +1 more source

Hydrated Double Carbonates - A Raman and Infrared Spectroscopic Study [PDF]

, 2007
The Raman spectra of selected double carbonates including pirssonite, gaylussite, shortite and quintinite complemented with infrared spectra have been used to characterise the structure of these carbonate minerals.
Dickfos, Marilla, Frost, Raymond
core   +2 more sources