Results 11 to 20 of about 250 (120)

Permittivity spectra and structure of d-bands of germanium telluride, tin telluride and lead telluride [PDF]

open access: yesIzvestiya vysshikh uchebnykh zavedenii. Fizika, 2020
Based on the experimental absorption spectra, the permittivity spectra of GeTe, SnTe, and PbTe crystals were obtained in the region of electron transitions from core d -bands of cations. Their specific features and general behavior are revealed. The permittivity spectra of each crystal were decomposed into six elementary components and their main ...
D.A. Perevoshchikov   +3 more
openaire   +1 more source

The main stages of ore formation of the Svetloe epithermal gold deposit (Khabarovsk Region) based on the study of the mineral composition of metasomatic rocks and ores

open access: yesРуды и металлы, 2023
The study of the spatiotemporal relationships of metasomatites and ores of various zones of the epithermal Au-Ag deposit Svetloe (Khabarovsk Region) using a traditional mineralogical and petrographic approach made it possible to establish several stages
Levochskaya D. V.   +6 more
doaj   +1 more source

Application of Electron Microprobe to Study the Features of Tellurides in the Jinqingding Gold Deposit, Shandong Province

open access: yesYankuang ceshi, 2018
A systematic study of the phase composition and element occurrence characteristics of tellurides in tellurium-bearing gold deposits will be helpful for the genesis understanding of gold deposits of this type and for prospecting exploration. Tellurides in
LI Zeng-sheng   +5 more
doaj   +1 more source

PRECIOUS METAL MINERALIZATION of a promising area OF THE RASHAD region, REPUBLIC OF SUDAN [PDF]

open access: yesМинералогия, 2020
The paper presents the first data on ore mineralization in rocks of the promising area near the town of Rashad, Republic of Sudan. The metasomatic rocks contain pyrrhotite, pentlandite, pyrite, galena, chalcopyrite, sphalerite, arsenopyrite, hematite ...
Yu.A. Ryzhkova, I.A. Blinov
doaj   +1 more source

Hafnium germanium telluride [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2008
The title hafnium germanium telluride, HfGeTe(4), has been synthesized by the use of a halide flux and structurally characterized by X-ray diffraction. HfGeTe(4) is isostructural with stoichiometric ZrGeTe(4) and the Hf site in this compound is also fully occupied.
Hoseop Yun, Gyung-Joo Jang
openaire   +3 more sources

Exploring the Interdependence between Electronically Unfavorable Situations and Pressure in a Chalcogenide Superconductor

open access: yesInorganics, 2023
The development of solids with the requested chemical and physical properties requires a thorough understanding of their electronic structures, as proper knowledge of the electronic structure of a given solid provides invaluable information regarding its
Kai S. Fries, Simon Steinberg
doaj   +1 more source

About the ore conduits at the near-surface deposits of gold-silver ores

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2017
It is shown that at the rather numerous near-surface gold-silver ore deposits (sometimes with tellurides), developed in the East of Russia, the fractured ore conduits can be revealed.
E. M. Necrasov, L. A. Dorozhkina
doaj   +1 more source

Application of Nanocatalysts in C-Te Cross-Coupling Reactions: An Overview [PDF]

open access: yesChemical Review and Letters, 2018
Synthesis of organo-telluride compounds through nanoparticles catalyzed C-Te cross-coupling reactions has drawn considerable attention in the past several years. This mini review is an attempt to highlight the most important advances and contributions in
Shahram Mohammadi   +4 more
doaj   +1 more source

THE ASSAY OF TELLURIDE ORES. [PDF]

open access: yesJournal of the American Chemical Society, 1898
n ...
openaire   +1 more source

PRECIOUS METAL MINERALOGY OF THE MURTYKTY GOLD DEPOSIT, SOUTH URALS [PDF]

open access: yesМинералогия, 2019
Ore mineralogy of the Murtykty gold deposit is presented in the paper and main attention is paid to the mode of occurrence of precious metals. Ores are pyrite-bearing quartz-chlorite (±sericite, ±carbonate of the dolomite-ankerite series) metasomatites ...
Yu.A. Paduchina   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy