Results 151 to 160 of about 197,145 (380)

CO-BEARING MINERALS IN ORES FROM THE MEDNORUDYANSKOE MALACHITE DEPOSIT (CENTRAL URALS) [PDF]

open access: yesМинералогия, 2016
Cobaltite, Co-bearing pyrite, chalcopyrite and wad in ores from the Mednorudyanskoe deposit are characterized. Reserves of cobalt (about 3 000 t) were mainly concentrated in the Co-bearing hypogene minerals: pyrite and chalcopyrite with syngenetic ...
V.I. Popova, V.A. Kotlyarov, V.A. Popov
doaj  

Mineralogical notes [PDF]

open access: yesAmerican Journal of Science, 1891
n ...
openaire   +2 more sources

Mixed clastic‐carbonate lake margin systems: An example from the Triassic of East Greenland

open access: yesThe Depositional Record, EarlyView.
This study examines a rare example of a mixed clastic‐carbonate shore zone from the Late Triassic of East Greenland. Two facies models are proposed. The interaction of sediment supply and production are shown to be key factors in governing facies development and these are in turn predominantly controlled by lake‐level dynamics and lake margin ...
Steven D. Andrews, Li Guo
wiley   +1 more source

DELAFOSSITE FROM THE OXIDATION ZONES OF MASSIVE SULFIDE DEPOSITS OF THE URALS [PDF]

open access: yesМинералогия, 2016
The paper summarizes the data on the findings of delafossite in oxidation zones of the Urals ore deposits: Mednorudyanskoe, Uchaly, XIX Parts′yezda, Gay, and Bakr-Uzyak.
E.V. Belogub   +3 more
doaj  

Carbonatite shows on the quartz deposits “Vein 175” (Ufalei block, the Southern Urals)

open access: yesЛитосфера, 2017
The subject of the study are manifestations of carbonatites in the quartz deposit “Vein № 175” - the largest deposit of granular quartz of Ufalei block in the Southern Urals.
Larisa Y. Kabanova   +3 more
doaj   +1 more source

Airborne infrared mineral mapping survey of Marysvale, Utah [PDF]

open access: yes
Infrared spectroradiometer survey results from flights over the Marysvale, Utah district show that hydrothermal alteration mineralogy can be mapped using very rapid and effective airborne techniques.
Chang, S. H., Collins, W.
core   +1 more source

Sedimentology and reservoir characterisation of Lower Jurassic clastic sedimentary rocks, Salt and Trans Indus Ranges, Pakistan: Evidence from petrography, scanning electron microscopy and petrophysics

open access: yesThe Depositional Record, EarlyView.
In this study, sandstones of the Lower Jurassic Datta Formation (DF‐LJ) in the Salt and Trans‐Indus Ranges are investigated regarding composition, diagenesis, provenance and reservoir properties using petrography, scanning electron microscopy (SEM) and petrophysical analysis.
Salman Ahmed Khattak   +7 more
wiley   +1 more source

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