Results 1 to 10 of about 225,756 (235)

Mineralogical characterization of fluorescent grossular garnet var. tsavorite from Merelani Hills, Tanzania [PDF]

open access: hybrid, 2023
Alfredo Idini   +6 more
openalex   +1 more source

The sapphirine-spinel hornblendites of Il’meno-Vishnevogorsky complex

open access: yesЛитосфера, 2017
The authors consolidated disparate information about sapphirine-bearing rocks of the Urals. It is shown that they belong to genetically different entities.
V. G. Korinevsky   +6 more
doaj   +2 more sources

CARBONATES FROM THE VISHNEVOGORSKOE ZR-NB DEPOSIT (SOUTHERN URALS) [PDF]

open access: yesМинералогия, 2015
Data on carbonates in alkaline rocks, pegmatites, and late veinlets of the Vishnevogorskoe deposit are summarized. Among 21 minerals studied, calcite is the major mineral; dolomite, ankerite, siderite, aragonite, bastnasite-(Ce), and strontianite are ...
V.I. Popova   +5 more
doaj  

MINERAL TRANSFORMATIONS OF HYALOCLASTITE DURING LITHOGENESIS IN MASSIVE SULFIDE BEARING REGIONS OF URALS [PDF]

open access: yesМинералогия, 2015
The features of the submarine transformations from primary hyaloclastites to oxide-ferruginous rocks of the Urals massive sulfide deposits are identified. These processes are accompanied by formation of smectite and Si-Fe phases transformed into chlorite-
N.R. Ayupova   +3 more
doaj  

FAHLORES OF ORE FACIES OF THE YUBILEYNOE MASSIVE SULFIDE DEPOSIT (SOUTH URALS) [PDF]

open access: yesМинералогия, 2018
The Ag-, Te-, Mn, Pb-bearing tennantite and minerals of the tennantite-tetrahedrite series are recognized in chalcopyrite-pyrite-sphalerite-talc-calcite smoker chimneys, bornite- and chalcopyrite-rich and quartz-carbonate-hematite diagenites and ...
A.S. Tseluyko   +3 more
doaj  

NEW DATA ON PYROCHLORE OF ALKALI PEGMATITES AND ORE ZONES OF THE VISHNEVYE MOUNTAINS (SOUTHERN URALS) [PDF]

open access: yesМинералогия, 2018
The minerals of the pyrochlore group are abundant in rocks of the Vishnevogorsk alkaline complex – miaskites, mica rocks, carbonatites, and their pegmatites. Several generations of pyrochlore can be found in complex pegmatite bodies.
V.I. Popova   +3 more
doaj  

MICROTOPOCHEMISTRY AND GEOCHEMICAL FEATURES OF A PYRITE NODULE OF СARBONACEOUS SILTSTONES OF THE SAF′YANOVKA MASSIVE SULFIDE DEPOSIT (CENTRAL URAL) [PDF]

open access: yesМинералогия, 2017
Pyrite nodules of carbonaceous siltstones of the Saf´yanovka nonmetamorphosed massive sulfide deposit consist of a porous poikilitic pyrite core (zone A), which is partly transformed to metacrystalline pyrite aggregates at the periphery (zones В и С ...
N.P. Safina   +3 more
doaj  

PHYSICO-CHEMICAL CONDITIONS OF VENT FAUNA FOSSILIZATION IN THE VMS DEPOSITS OF THE URALS AND PONTIDES: FLUID INCLUSION DATA [PDF]

open access: yesМинералогия, 2016
Fluid inclusions in quartz, barite and calcite from fossilized fauna of hydrothermal massive and clastic ores from the deposits of the Urals (Valentorka, Saf’yanovka, Yubileynoe, Molodezhnoe, Shemur) and Pontides (Killik, Kyzylkaya) are studied with ...
N.N. Ankusheva   +2 more
doaj  

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