Results 161 to 170 of about 2,000 (199)
Some of the next articles are maybe not open access.
The first find of grothite in gold ore deposits
Doklady Earth Sciences, 20091083 Grothite, representing an Aland Frich titanite variety that is described by the theoretical formula (Ca,REE)(Ti,Al,Fe)SiO4(O,OH,F) (1), is a relatively rare mineral, which was previously unknown in ores from noble metal deposits. Titanites with high concen trations of Al (up to 14 wt %) and F (up to 2.5 wt %) are characteristic of eclogites ...
A. S. Vakh +3 more
openaire +1 more source
Gold occurrence and ore genesis, Yata micro-disseminated gold deposit, Guizhou, Southwest China
Chinese Journal of Geochemistry, 2002The mode of occurrence of gold in the Yata micro-disseminated gold deposit is approached through chemical phase studies coupled with ore-dressing monitoring and micro-beam analysis. The results showed that gold occurred for the most part as ultra-microscopic particles adsorbed on the surfaces or fracture planes of pyrite and other sulphides.
Zhu Xiaoqing, Wang Zhonggang
openaire +1 more source
Ore Forming Fluids of Several Gold Deposits in the Irtysh Gold Belt, Xinjiang, China
Journal of Earth Science, 2020The metallogenic environment of the Irtysh gold belt in Xinjiang is studied in detail. The metallogenic geological background, metallogenic conditions and ore-controlling factors of the gold deposits in eastern, central and western regions of the metallogenic belt are compared.
Yingwei Wang +5 more
openaire +1 more source
Mineralogy of ores of the Vosneenskoe gold deposit (Southern Ural)
Geologicheskii vestnik, 2023The mineralogical features of the ores of the Voznesenskoye gold deposit located in the zone of the Main Ural Fault at the northern end of the Magnitogorsk megazone of the Southern Urals have been studied. The chemical composition of minerals was determined using a Tescan Vega Compact scanning electron microscope with an Oxford Instruments Xplorer 15 ...
Sergei Evgenievich Znamensky +1 more
openaire +1 more source
THE RAIGORODOK STOCKWORK GOLD-SULFIDE-QUARTZ DEPOSIT IN THE NORTH KAZAKHSTAN GOLD ORE PROVINCE
Геология и геофизика, 2018Abstract The Raigorodok stockwork gold–sulfide–quartz deposit is located in the contact zone of a monzogabbro–diorite intrusion belonging to the Stepnyak complex (442 Ma). Two main ore formation stages have been established: early, with disseminated gold-bearing pyrite–chalcopyrite mineralization related to skarn, propylite, and K ...
K.R. Kovalev +7 more
openaire +2 more sources
Gold-quartz ore deposits of Yana-Kolyma belt
International Geology Review, 1967Types of ore deposits, their regional distribution, mineral associations, textures and structures are described. Ores are of Cretaceous age, posterior to batholithic granite intrusions (Jurassic). Mineralizing solutions originated in consequence of metamorphism and dehydration of sedimentary geosynclinal rock masses, and are not directly related to ...
openaire +1 more source
Ore-controlling thrust faults at the Bazovskoe gold-ore deposit (Eastern Yakutia)
Doklady Earth Sciences, 2017This work presents results of structural analysis of the orogenic Bazovskoe gold-ore deposit, the structure of which is controlled by an imbricate fan with frontal succession of ore-controlling thrust faults and conjugated thrust ramps. It was established that linear and stratified stockworks and their combinations are formed by several systems of ...
V. Yu. Fridovsky +3 more
openaire +1 more source
Ore Mineralization of the Epithermal Samolazovskoe Gold-Ore Deposit, Aldan Shield (Russia)
Key Engineering Materials, 2018The Samolazovskoe gold-ore deposit is located in the Central Aldan ore district (Russia) within the Yukhta multiphase volcano-plutonic massif, consisted of rocks of the monzonite-syenite formation (J3–K1). Four hydrothermal-metasomatic mineral parageneses are distinguished in the deposit: skarn, developed at the contact of syenites and rocks of the ...
Vasilii Ivanovich Leontev +1 more
openaire +1 more source
Study on Efem Cukuru Gold Ore Deposit and Recovery of Gold by Flotation
2010This study reports the information about Efem cukuru gold ore deposit and the results of the flotation experiments Classical first-order kinetic flotation model was used for the evaluation of the experimental data, recovery and flotation rate constants describing the flotation time-recovery profiles for different reagent combinations.
TANRIVERDİ, MEHMET +4 more
openaire +1 more source
Gold Nanorods: The Most Versatile Plasmonic Nanoparticles
Chemical Reviews, 2021Xizhe Cheng, Han Zhang, Lei Shao
exaly