Results 71 to 80 of about 5,473 (299)

Platinum-Group Mineral Occurrences and Platinum-Group Elemental Geochemistry of the Xiadong Alaskan-Type Complex in the Southern Central Asian Orogenic Belt

, 2018
Alaskan-type complexes commonly contain primary platinum-group element (PGE) alloys and lack base-metal sulfides in their dunite and chromite-bearing rocks. They could therefore host PGE deposits with rare sulfide mineralization.
Qin, Ke-Zhang, Ben-Xun Su, Yang, Sai-Hong, Tang, Dong-Mei, Dong-Mei Tang, Ke-Zhang Qin, Patrick Asamoah Sakyi, Su, Ben-Xun, Alemayehu, Melesse, Sai-Hong Yang, Melesse Alemayehu, Xiao-Wen Huang, Bai, Yang, Yang Bai, Huang, Xiao-Wen, Sakyi, Patrick Asamoah   +15 more
core   +1 more source

Nanoscale Secondary Ion Mass Spectrometry for Quantifying Membrane Fouling: Fouling Layer Structure and Chemical Interaction

Advanced Science, EarlyView.
Nanoscale secondary ion mass spectrometry (Nano SIMS) is established as a powerful analytical tool to visualize and quantify the membrane fouling layers. ABSTRACT Membrane technology has garnered considerable attention for applications in wastewater treatment and resource recovery. Nevertheless, membrane fouling remains a major barrier, yet the lack of
Mengfei Wu, Xinhua Wang, Pin Zhao, Weilong Song, Ming Xie   +4 more
wiley   +1 more source

Identification of platinum ores via trace element signatures

, 2011
This project studies the natural variation in the elemental composition of processed platinum ore from different extraction locations in South Africa in order to assess whether this provides sufficient information for the elemental fingerprinting" of the
Hassan, Maisson Mohamed Zeinelabieden
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Time constraints on the formation of lithospheric mantle beneath cratons: a re-Os isotope and platinum group element study of peridotite xenoliths from northern Canada and Lesotho, [PDF]

, 2001
Understanding the generation and evolution of cratonic lithospheric keels requires detailed knowledge of their age, timescale of formation, and the relationship between the crust and mantle part of the lithosphere.
Irvine, Gordon James
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Investigation of Platinum-Group Minerals (PGM) from Othrys Chromitites (Greece) Using Superpanning Concentrates

, 2016
Platinum-group minerals were concentrated using superpanning from two composite chromitite samples, which were collected from two old mines within the Othrys ophiolite.
Basilios Tsikouras, Sofia Karipi, Konstantin Hatzipanagiotou, Tassos Grammatikopoulos, Elena Ifandi   +4 more
core   +1 more source

Platinum-group minerals in the Skouries Cu-Au (Pd, Pt, Te) porphyry deposit [PDF]

, 2018
The Skouries deposit is a platinum-group element (PGE) enriched Cu-Au porphyry system located in the Chalkidiki peninsula, Greece, with associated Ag, Bi and Te enrichment.
Naden, Jonathan, McFall, Katie A, Roberts, Stephen, Spratt, John, Mcfall, Katie A., McDonald, Iain, Baker, Tim   +6 more
core   +1 more source

Reinforcing Oxygen Activation of Spinel Oxide via Mn─O Covalency Engineering for VOCs Oxidation

Advanced Science, EarlyView.
A MnCo spinel catalyst with weakened Mn─O covalency was synthesized via a hard‐template method. The reduced Mn─O covalency facilitates localized electron redistribution, promoting the activation of both molecular oxygen and lattice oxygen, and thereby enabling the efficient and complete oxidation of VOCs (ethyl acetate, toluene, and propane).
Gan Li, Ruochen Zhou, Qianqian Chen, Guobo Li, Xiang Tu, Fengbo Yu, Wenming Liu, Jian Ji, Honggen Peng   +8 more
wiley   +1 more source

Erratic behavior of platinum-group elements along an olivine–Cr-spinel cotectic in sulfide-undersaturated basaltic magma: roles of Cr-spinel and alloys

Scientific Reports
The behavior of platinum-group elements (PGE) in sulfide-undersaturated primitive magmas may be controlled by crystallization of either Cr-spinel, platinum-group minerals (PGM) or olivine.
Ivan. F. Chayka, Vadim S. Kamenetsky, Anton V. Kutyrev, Sarah-Jane Barnes, Aleksandr S. Stepanov, Sergey E. Konstantinov, Nikolay I. Baykov, Sergey G. Kryazhev, Ivan A. Belousov, Irina A. Zhukova, Vasily D. Scherbakov, Valery M. Kalugin, Alexey V. Ivanov, Nikolay V. Bryanskiy, Jung-Woo Park   +14 more
doaj   +1 more source

Determination of the copper-nickel ores formation sequence of the Kun-Manye deposit (Amur region)

RUDN Journal of Engineering Research, 2020
The purpose of the article is to determine the sequence of mineral formation of copper-nickel ores of Kun-Manie deposit, which is located in Zeya district of Amur region. Three ore chutes take part in the structure of the deposit.
Alexander E. Kotelnikov, Daria A. Kolmakova, Elena M. Kotelnikova   +2 more
doaj   +1 more source

Effect of HPGR on platinum bearing ores and the flotation response as compared to the conventional ball mill

, 2011
Includes abstract.Includes bibliographical references.This thesis focuses on the application of the high pressure grinding rolls (HPGR) on platinum bearing ores Merensky, UG2 and Platreef.
Solomon, Nomonde
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