Results 41 to 50 of about 10,064,357 (239)

COMPOSITION AND MORPHOLOGY OF CRYSTALS OF PLATINUM GROUP MINERALS FROM PLACERS OF THE SOUTH URALS [PDF]

Минералогия, 2017
Crystals of platinum group minerals (PGMs) of the Os–Ir–Ru and Pt–Fe systems from placer deposits of the South Urals are zonal and relatively homogenous in composition and can contain inclusions of PGE sulfides, arsenides, sulfarsenides, and antimonides.
V.V. Zaykov, V.A. Popov, E.V. Zaykova, I.A. Blinov, V.A. Kotlyarov   +4 more
doaj  

Application of the 190Pt-186Os isotope decay system to dating platinum-group minerals [PDF]

, 2010
Constraining the formation age of platinum-group minerals (PGM) in placer deposits has traditionally been very challenging. The 190Pt-186Os decay system, measured by laser ablation multi-collector ICPMS (LA-MC-ICPMS), has been demonstrated as a useful ...
Coggon, Judith Ann, COGGON, JUDITH,ANN
core  

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

Defect‐Driven Charge Separation in Ba‐Doped SrTiO3: Correlating Photoelectrochemical Performance With Dye‐Selective Photocatalysis

Advanced Materials Interfaces, EarlyView.
Ba‐doped SrTiO3 perovskites establish a direct correlation between photoelectrochemical activity and photocatalytic performance. Optimized Ba0.5Sr0.5TiO3 exhibits enhanced charge separation, photocurrent generation, and visible‐light‐driven dye degradation through defect‐induced oxygen vacancies and lattice distortion.
Sagar A. Nikam, Somnath Ladhane, Vikas P. Mhaske, Gotan H. Jain, Sandesh R. Jadkar, Shashikant P. Patole, Ganesh E. Patil   +6 more
wiley   +1 more source

Investigation of the surface properties of gangue minerals in PGM bearing ores [PDF]

, 2005
Bibliography: leaves 90-95.The recovery of Platinum Group Minerals (PGM) and associated sulphides by froth flotation from the Bushveld Igneous Complex is complicated by the presence of naturally floatable gangue minerals such as talc.
Martinovic, Jasmina
core   +1 more source

Constituent Minerals of Placer Platinum-group Minerals Occurred from the Onnebetsu Area, Shibetu City, Hokkaido, Japan

Journal of MMIJ
This study investigates the mineral diversity in placer platinum-group minerals (placer PGM) purportedly collected from the Onnebetsu area in Shibetsu City, Hokkaido.
Toru OISHI, Daisuke NISHIO-HAMANE
doaj   +1 more source

Platinum-Group Elements in Sulphide Minerals, Platinum-Group Minerals, and Whole-Rocks of the Merensky Reef (Bushveld Complex, South Africa): Implications for the Formation of the Reef [PDF]

Journal of Petrology, 2007
The concentrations of platinum-group elements (PGE), Co, Re, Au and Ag have been determined in the base-metal sulphide (BMS) of a section of the Merensky Reef. In addition we performed detailed image analysis of the platinum-group minerals (PGM). The aims of the study were to establish: (1) whether the BMS are the principal host of these elements; (2 ...
Godel, Bélinda, Barnes, Sarah-Jane, Maier, Wolfgang D.   +2 more
openaire   +1 more source

Life‐Like Ferrous Oxide Microspheres from Kombucha

Advanced Materials Interfaces, EarlyView.
Kombucha bacterial cellulose, sodium alginate, and ferrous nitrate self‐assemble into membrane‐enclosed iron oxide microspheres. These microspheres bud daughter vesicles, sustain 24‐h electrochemical oscillations, and filter theta‐band signals.
Panagiotis Mougkogiannis, Anna Nikolaidou, Andrew Adamatzky   +2 more
wiley   +1 more source

The podiform chromitites in the Dagküplü and Kavad mines, Eskisehir ophiolite (NW-Turkey): Genetic implications of mineralogical and geochemical data

Geologica Acta, 2009
Mantle tectonites from Eskisehir (NW-Turkey) include high-Cr chromitites with limited variation of Cr#, ranging from 65 to 82. Mg# ratios are between 54 and 72 and chromite grains contain up to 3.71 wt% Fe2O3 and 0.30 wt% TiO2.
I. UYSAL, F. ZACCARINI, M.B. SADIKLAR, M. TARKIAN, O.A.R. THALHAMMER, G. GARUTI   +5 more
doaj  

Mineralogical and geochemical features of chromitites of the Apshak area (South Kraka ultramafic massif, South Urals) [PDF]

Минералогия
Mineral composition of chromitites of the Apshak area in the northwestern part of the South Kraka massif (the largest representative of the Kraka group ophiolites), which is confined to the northern closure of the Zilair Synclinorium on the western slope
T.D. Shabutdinov, D.E. Saveliev, R.A. Gataullin   +2 more
doaj   +1 more source