Results 61 to 70 of about 21,436 (259)

Origins of the Pangkaimen Au Deposit in the Northern Great Xing'an Range, China: Evidence From Geochronological, Geochemical, Fluid Inclusion, and H–O–S–Pb Isotope Data

Geological Journal, EarlyView.
The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu, Hongpeng Chen, Chenglu Li, Ye Wang, Tiesheng Li, Rigen Wu, Zengtao Li, Zhichao Song, Xiannan Zhu   +8 more
wiley   +1 more source

Recent advances in Joule‐heating synthesis of functional nanomaterials for photo and electrocatalysis

PhotoMat, EarlyView.
This paper presents a comprehensive overview of recent advancements in Joule‐heating synthesis of photo and electrocatalysts, emphasizing its benefits and applications. The objective is to offer an effective strategy for enhancing the diversity and performance of catalytic materials.
Jiaqi Li, Laiyu Luo, Siyu Wang, Haojie Song, Baojiang Jiang   +4 more
wiley   +1 more source

Trace element signatures of sphalerite in the Sichuan Daliangzi Ge-rich Pb-Zn deposit and its implications for deep ore prospecting

Frontiers in Earth Science, 2022
The Daliangzi Pb-Zn deposit is one of the typical Ge-rich Pb-Zn deposits in the Sichuan-Yunnan-Guizhou Pb-Zn polymetallic metallogenic triangle area (SYGT), with its Pb, Zn, and Cd reserves reaching the scale of a large-sized deposit and its Ge reserve ...
Lingjie Li, Runsheng Han, Yan Zhang, Jianbiao Wu, Zhixing Feng   +4 more
doaj   +1 more source

Correlated X‐Ray and Electron Microscopies of a Single Biphasic GaAs Nanowire

Small Methods, EarlyView.
Nano‐focused scanning X‐ray diffraction microscopy at a synchrotron light source, combined with transmission electron microscopy, reveals a clear correlation between the nanoscale distribution of cubic and hexagonal segments in a GaAs nanowire with subtle variations in inter‐reticular spacing, bending, and twisting.
Thomas Dursap, Tao Zhou, Maxime Dupraz, Stéphane Labat, Olivier Thomas, Niels Fardeau, Philippe Regreny, Michel Gendry, Solène Brottet, Nicholas P. Blanchard, Martin V. Holt, Marie‐Ingrid Richard, Alexandru Danescu, José Penuelas, Matthieu Bugnet   +14 more
wiley   +1 more source

Selective Oxidation Depression of Copper-Activated Sphalerite by H₂O₂ During Chalcopyrite Flotation

Metals
Using hydrogen peroxide (H2O2), a simple and easily accessible reagent, as a selective depressant, flotation separation experiments of chalcopyrite and copper-activated sphalerite were conducted.
Peiqiang Fan, Xiong Tong, Xian Xie, Qiang Song, Yuanlin Ma, Bin Han, Haitao Fu, Zhiming Lu   +7 more
doaj   +1 more source

Ferric chloride leaching of the Delta sulfide ores and gold extraction from the leaching residue [PDF]

, 1988
Conventional differential and bulk flotation processes have difficulties in achieving high recoveries with acceptable grades far zinc, lead and copper from the complex sulfide ores found at Tok, Alaska.
Lin, H.K., Rao, P.D.
core  

Large‐Scale Synthesis of InP/ZnS Quantum Dots Using Continuous Flow Chemistry

Small Structures, EarlyView.
Novel precursors for the continuous flow synthesis of highly luminescent InP/ZnS core/shell QDs are identified, enabling their fully automated gram‐scale production in a two‐stage process. The developed synthetic approach employs hazard‐free aminophosphine chemistry in a noncoordinating solvent.
Ranjana Yadav, Céline Rivaux, Céline Nayral, Fabien Delpech, Peter Reiss   +4 more
wiley   +1 more source

Copper mineral occurrences in the Wrangell Mountains-Prince William Sound area, Alaska [PDF]

, 1971
On January 9, 1970, the U.S. Bureau of Mines entered into an agreement with the University of Alaska based upon a proposal submitted by the Mineral Industry Research Laboratory.
Grybeck, D.G., Heiner, L.E., Wolff, E.N.
core  

New Magnetite Reference Material for SIMS δ18O Measurements and a Study of Precision and Accuracy Due to Crystal Orientation Effects

Geostandards and Geoanalytical Research, EarlyView.
Key Points A new magnetite reference material (PF21mt) is available for δ18O measurements by SIMS. Reproducibility of measurement results in two laboratories suggest orientation bias of ±2‰ (2s) at 20 keV. Repeatability improves to ±1‰ (2s) when using a 13 keV protocol, suggesting reduced orientation bias. In situ isotope ratio measurements provide the
Michelle Ulrich, Daniela Rubatto, Maria Rosa Scicchitano, Benita Putlitz, Thomas Bovay   +4 more
wiley   +1 more source

A study of isotropic-pseudoanisotropic zoning in sphalerite [PDF]

Bulletin of the Geological Society of Finland, 1969
Sphalerite with isotropic-pseudoanisotropic zoning is described from greisen in Eurajoki, SW Finland. Single-crystal X-ray studies showed that the pseudoanisotropy is due to very small chalcopyrite inclusions, oriented with their crystallographic axes ...
I. Haapala, K. Laajoki
doaj   +1 more source