Metallogenic features of Miocene porphyry Cu and porphyry-related mineral deposits in Ecuador revealed by Re-Os, 40Ar/39Ar, and U-Pb geochronology [PDF]
Mineralization and alteration events at ten Miocene porphyry Cu and porphyry-related epithermal mineral deposits in southern, central, and northern Ecuador were dated by means of molybdenite Re-Os, biotite and alunite 40Ar/39Ar, and titanite U-Pb ...
Barra, Fernando +4 more
core
Leaching and Kinetic Modelling of Molybdenite Concentrate Using Hydrogen Peroxide in Sulfuric Acid Solution [PDF]
Leaching of molybdenite concentrate with hydrogen peroxide in sulfuric acid solution was investigated to determine the effects of reaction time, reaction temperature, H2O2 concentration, H2SO4 concentration, pulp density and rotation speed on molybdenum ...
Mehdi Moazemi Goodarzi +2 more
doaj
Kinetics roasting low grade concentrates molybdenite [PDF]
El molibdeno es un metal atractivo para la fabricación de aceros y fundiciones debido a que promueve un marcado endurecimiento, aumentando la resistencia mecánica cuando la aleación se somete a enfriamientos controlados en un rango de temperaturas ...
Bazan Brizuela, Vanesa Lucia +2 more
core +1 more source
Concordant ages for the giant Kipushi base metal deposit (DR Congo) from direct Rb-Sr and Re-Os dating of sulfides [PDF]
We report concordant ages of 451.1 ± 6.0 and 450.5 ± 3.4Ma from direct Rb-Sr and Re-Os isochron dating, respectively, of ore-stage Zn-Cu-Ge sulfides, including sphalerite for the giant carbonate-hosted Kipushi base metal (+Ge) deposit in the ...
Brauns, Michael +2 more
core
Chunming Han +5 more
openalex +1 more source
Transfer of molybdenum disulfide to various metals [PDF]
Sliding friction experiments were conducted with molybdenum disulfide single crystals in contact with sputter cleaned surfaces of copper, nickel, gold, and 304 stainless steel.
Barton, G. C., Pepper, S. V.
core +1 more source
The Geologic Features of the Occurrence of Copper in North America [PDF]
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
Plutonic associations of North-East, Bahia [PDF]
Dans le but d'illustrer une excursion géologique, les auteurs décrivent les associations plutoniques du nord-est de l'Etat de Bahia. Ils abordent le cadre géologique régional et ils présentent les caractéristiques pétrologiques et structurales à l ...
Giuliani, Gaston +2 more
core
A Novel Chalcopyrite Depressant for Selective Separation of Molybdenite from Cu-Mo Sulfide Ores and Its Interaction Mechanisms [PDF]
Yuemeng Lin +4 more
openalex +1 more source
Molybdenite investigations in southeastern Alaska [PDF]
_;__________--__,-_-_--_-----____-_-.r_--_-___-_-...---"7 Molybdenite deposits of the Nunatak area, Muir Inlet, Glacier Bay, by W.'S. Twenhofel.----"--_____.._-_..____________..___ 9 Introduction._________________________________________________ 9 Climate..--_-----___-__--__--_.-.____._-_.______ 10 Geology.___-_--__---. .--_-__-----__--_____--_______ ..
openaire +1 more source

