Results 61 to 70 of about 29,721 (224)

Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen

Geological Journal, EarlyView.
By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang, Aibing Chen, Jian Yang, Yuan Zhang   +3 more
wiley   +1 more source

Geochemical and Geological Investigation of Skarn‐Type Pb–Zn Mineralization in Hastanetepe (Balya‐Balıkesir, Türkiye): An Approach Based on Fluid Inclusions, Sulphur Isotopes and Geochemical Data

Geological Journal, EarlyView.
Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley   +1 more source

2-hydroxyphosphonoacetic Acid to Eliminate the Adverse Effect of Serpentine on Chalcopyrite Flotation

Kuangchan zonghe liyong
This is an article in the field of mineral processing engineering. For the flotation of sulfide ores whose gangue mineral is serpentine, serpentine can deteriorate the flotation of sulfide ores due to its easy mudification.
Dongdong YAO, Fen JIAO, Wenhao JIA, Qian WEI, Zuchao PAN, Jingjing XIONG   +5 more
doaj   +1 more source

Liquid Copper and Iron Production from Chalcopyrite, in the Absence of Oxygen

Metals, 2022
Clean energy infrastructure depends on chalcopyrite: the mineral that contains 70% of the world’s copper reserves, as well as a range of precious and critical metals.
Katrin E. Daehn, Caspar Stinn, Lucas Rush, Ethan Benderly-Kremen, Mary Elizabeth Wagner, Charles Boury, Brian Chmielowiec, Carolina Gutierrez, Antoine Allanore   +8 more
doaj   +1 more source

The Geologic Features of the Occurrence of Copper in North America [PDF]

, 1933
Copper is of such widespread natural occurrence in North America and there are so few metal-mining districts that have not contributed to its production that it is obviously necessary in any brief general treatment of the geology of the copper deposits ...
Ransome, F. L.
core  

Analysis of S-rich CuIn(S,Se)2 layers for photovoltaic applications: Influence of the sulfurization temperature on the crystalline properties of electrodeposited and sulfurized CuInSe2 precursors [PDF]

, 2012
This paper reports the microstructural analysis of S-rich CuIn(S,Se)2 layers produced by electrodeposition of CuInSe2 precursors and annealing under sulfurizing conditions as a function of the temperature of sulfurization.
Bermudez, V., Broussillon, C., Calvo Barrio, Lorenzo, Grand, P. P., Izquierdo Roca, Victor, Kerrec, O., Morante i Lleonart, Joan Ramon, Parissi, L., Pérez Rodríguez, Alejandro, Álvarez García, Jacobo   +9 more
core   +1 more source

Silver‐Alloyed Wide‐Bandgap (Ag,Cu)(In,Ga)S2 Thin‐Film Solar Cells With 15.5% Efficiency

Progress in Photovoltaics: Research and Applications, EarlyView.
This study reports improvements in compositional homogeneity, microstructure, enhanced radiative recombination, and extended carrier lifetime of CIGS absorber via Ag incorporation. The optimal Ag‐alloyed CIGS solar cells achieve 15.5% PCE and 948 mV VOC, competing with the VOC of the Ag‐free reference sample from the same batch.
Yucheng Hu, Ece Washbrook, Arivazhagan Valluvar Oli, Andrea Griesi, Yurii P. Ivanov, Mariam Pelling, Simon M. Fairclough, Kulwinder Kaur, Michele Melchiorre, Adam Hultqvist, Tobias Törndahl, Wolfram Hempel, Wolfram Witte, Giorgio Divitini, Susanne Siebentritt, Rachel A. Oliver, Gunnar Kusch   +16 more
wiley   +1 more source

Brittle Structural Control and Fluid Progress of the Jinqingding Gold Deposit: Implications for Epizonal Gold Mineralization

Acta Geologica Sinica - English Edition, EarlyView.
ABSTRACT The Jinqingding gold deposit in eastern Jiaodong is a significant gold mineralization within the Muping–Rushan metallogenic belt. This study integrates structural analysis and trace element geochemistry of sulphides to elucidate ore‐controlling mechanisms and metallogenic models.
Xiaohu Wang, Yuke Shen, Changshan Wei, Fengbin Han, Tao Guo, Huisheng Wang, Jiantao Yu, Yubo Song, Bo Wang, Longji Gong, Guijie Li   +10 more
wiley   +1 more source

Investigation of Interface Reactions and Electrochemical Behaviors of Chalcopyrite Dissolution in Different Leaching Mediums

International Journal of Electrochemical Science, 2013
In this work, a comparative study on the electrochemical behavior of massive chalcopyrite electrode in different leaching mediums was carried out to investigate the different interface reactions.
Jun Wang, Hongbo Zhao, Wenqing Qin, Congren Yang, Guanzhou Qiu   +4 more
doaj   +1 more source

Photoelectron spectromicroscopy at chalcopyrite films

Ultramicroscopy, 2012
CuInSe₂ films were prepared by MBE on GaAs (111) substrates. ZnSe and ZnO are subsequently deposited in situ by MOMBE. Interface parameters like band offsets and morphology are studied by X-ray photoelectron spectroscopy (XPS) and Low energy electron diffraction (LEED).
Pettenkofer, C., Hofmann, A., Bremsteller, W., Lehmann, C., Kelleter, F.   +4 more
openaire   +3 more sources