Results 21 to 30 of about 2,204,508 (267)

Authigenic rhabdophane from brown iron ore of the oxidation zone of the Babaryk massive sulfide occurrence (South Urals): scanning electron microscope (SEM) and electron backscattered diffraction (EBSD) study

open access: yesEuropean journal of mineralogy, 2021
. Rhabdophane (Ce0.34−0.43Nd0.13−0.14Ca0.06−0.29La0.08−0.11Y0.05−0.12Pr0.03−0.05Sm0.02−0.05Gd0.02−0.05Fe0−0.04Dy0.00-0.01)0.97-1.01((P0.69−0.96S0.04−0.31)1.00O4)⚫H2O is found in a Fe3+-oxyhydroxide nodule (brown iron ore) collected from the upper part of
Elena V. Belogub   +4 more
semanticscholar   +1 more source

TOURMALINE FROM LATE QUARTZ VEINS OF THE MURTYKTY GOLD DEPOSIT, REPUBLIC OF BASHKORTOSTAN [PDF]

open access: yesМинералогия, 2020
Tourmaline, an intermediate member of the oxyschorl–oxydravite–oxymagnesio-foitite-bosiite series with a predominance of the oxy-dravite-bosiite end-member, was studied from late calcitequartz veins in the eastern zone of the Murtykty gold deposit ...
M.A. Rassomakhin   +3 more
doaj   +1 more source

REE MINERALS IN BLACK SHALES OF THE PALEOPROTEROZOIC MIKHAILOVKA FORMATION (BAIKAL-PATOM HIGHLAND, SIBERIA) [PDF]

open access: yesМинералогия, 2022
The paper characterizes REE mineralization from carbonaceous metapelites of the Paleoproterozoic Mikhailovka Formation, which is the most ancient gold-bearing horizon of the Lena province (Bodaibo district, Irkutsk region). The conditions of metamorphism
E.E. Palenova   +3 more
doaj   +1 more source

Rapidcreekite of anthropogenic origin - ’korkinoite’ from burnt mine dump in the Chelyabinsk coal basin, South Urals, Russia: crystal structure refinement, thermal behavior and spectroscopic characterization

open access: yesJournal of Geosciences, 2021
1 Institute of Earth sciences, Saint-Petersburg State University, Universitetskaya emb. 7/9, 199034, St. Petersburg, Russia; m.avdontceva@spbu.ru 2 Nanomaterials Research Center, Federal Research Center, Kola Centre, Russian Academy of Sciences, 14 ...
M. Avdontceva   +7 more
semanticscholar   +1 more source

REE AND Th MINERALS IN THE METASANDSTONES OF THE UDOKAN BASIN (RUSSIA) [PDF]

open access: yesМинералогия, 2022
Based on ICP-MS, optical and electron microscopy, and electron back-scatter diffraction data, the paper considers the distribution and the mode of occurrence of REEs and Th in metasandstones of the Lower Proterozoic Sakukan Formation, which host ...
E.V. Belogub   +4 more
doaj   +1 more source

TO THE ONTOGENESIS OF AESCHYNITE IN FELDSPAR VEIN NO. 31 OF THE VISHNEVYE GORY, SOUTH URALS [PDF]

open access: yesМинералогия, 2022
Small grains of accessory aeschynite in feldspar vein no. 31 of Vishnevye Mountains (South Urals) co-crystallize with late growth zones of feldspar crystals, as well as with ilmenite, titanomagnetite, muscovite, zircon, monazite, thorite, rutile ...
V.A. Popov, I.A. Blinov, V.I. Popova
doaj   +1 more source

GEOCHEMICAL FEATURES OF SULFIDES OF THE AKTASH MAGNETITE-POLYMETALLIC DEPOSIT, WESTERN KARAMAZAR, TAJIKISTAN (LA-ICP-MS DATA) [PDF]

open access: yesМинералогия, 2023
The distribution of trace elements in sulfides from various ores of the Aktash magnetitepolymetallic deposit (Tajikistan) is studied using LA-ICP-MS method. Sulfides partly replace banded magnetite ores.
U.A. Yatimov   +2 more
doaj   +1 more source

FEATURES OF MODIFYING EFFECT OF LOW-INTENSITY ELECTROMAGNETIC RADIATION OF NATURAL AND TECHNOGENIC ORIGIN ON VIABILITY AND FUNCTIONAL STATUS OF NEUTROPHILIC GRANULOCYTES

open access: yesЖурнал микробиологии, эпидемиологии и иммунобиологии, 2016
Aim. Study effects of microwave electromagnetic radiation (EMR) of the SHF range in vitro on viability and functional status of neutrophilic granulocytes. Materials and methods. Neutrophils of peripheral blood of 30 conditionally healthy donors aged 18 -
I. I. Dolgushin   +6 more
doaj   +1 more source

MINERALOGICAL AND GEOCHEMICAL FEATURES OF SULFIDE CHIMNEYS OF THE YUBILEYNOE MASSIVE SULFIDE DEPOSIT (SOUTH URALS) [PDF]

open access: yesМинералогия, 2019
Three mineral types of hydrothermal chimneys (pyrite-chalcopyrite, pyrite-sphalerite-chalcopyrite and chalcopyrite-pyrite-sphalerite) form a continuous mineralogical range in ores from the Yubileynoe deposit.
A.S. Tseluyko   +5 more
doaj   +1 more source

Ca OXALATES IN LICHEN GENUS CLADONIA ON DUMPS OF THE SUGUR COPPER DEPOSIT (SOUTH URALS) [PDF]

open access: yesМинералогия, 2023
Ca oxalate crystals (mainly, weddellite (Ca(C2O4) • (2.5-x)H2O) are found in the lichen Cladonia chlorophaea on dumps of the Sugur copper deposit underwent to aerosol emissions from the Karabash copper smelting (KCS), South Urals.
E.E. Artemenko   +3 more
doaj   +1 more source

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