Results 21 to 30 of about 225,756 (235)

KENYAITE AND MAGADIITE IN THE SOUTHERN URALS [PDF]

open access: yesМинералогия, 2017
White dense kenyaite (Na2 Si22O41(OH)8 • 6H2 O) nodules were found by enthusiasts in dumps of exploration mines of the Rechnoe cacholong occurrence in the Adamovsky district of the Orenburg region.
M.V. Shtenberg   +4 more
doaj  

Jarosite versus Soluble Iron-Sulfate Formation and Their Role in Acid Mine Drainage Formation at the Pan de Azúcar Mine Tailings (Zn-Pb-Ag), NW Argentina [PDF]

open access: yes, 2014
Secondary jarosite and water-soluble iron-sulfate minerals control the composition of acid mine waters formed by the oxidation of sulfide in tailings impoundments at the (Zn-Pb-Ag) Pan de Azúcar mine located in the Pozuelos Lagoon Basin (semi-arid ...
Alicia Kirschbaum   +5 more
core   +3 more sources

MAGNESIOHÖGBOMITE (MG,FE2+,ZN)8 (AL,TI,FE3+)20O38(OH)2 FROM ILMENOGORSKY-VISHNEVOGORSKY COMPLEX [PDF]

open access: yesМинералогия, 2016
Rare mineral magnesiohögbomite was found in spinel-sapphirine hornblendites and titanomagnetite clinopyroxenites, which compose the large blocks in tectonic sheets of serpentinites among gneisses of the Kyshtym sequence (Ilmenogosrky-Vyshnevogorsky ...
V.G. Korinevsky   +4 more
doaj  

CLINTONITE CА(MG, AL, FE)3 [AL3 SIO10](OH)2 FROM THE ILMENO -VISHNEVOGORSKY COMPLEX OF THE SOUTH URALS [PDF]

open access: yesМинералогия, 2015
Clintonite is a rare type of brittle mica (calcium analogue of phlogopite). Its new find in Urals is described. Clintonite is a part of garnet clinopyroxenite, composing a block-inclusion in a serpentinite melange.
V.G. Korinevsky   +4 more
doaj  

INTERGROWTHS OF PLATINUM GROUP MINERALS FROM THE MIASS PLACER ZONE (SOUTH URALS) AND THEIR PRIMARY SOURCES [PDF]

open access: yesМинералогия, 2016
Twenty four platinum group minerals (PGMs) were found in the Kialim and Maly Iremel gold placers of the Miass placer zone, South Urals. Rhodarsenite, bowieite, cuprorhodiste, and xingzhongite(?) were found in the Urals for the first time.
V.V. Zaykov   +4 more
doaj  

COMPOSITION AND MORPHOLOGY OF CRYSTALS OF PLATINUM GROUP MINERALS FROM PLACERS OF THE SOUTH URALS [PDF]

open access: yesМинералогия, 2017
Crystals of platinum group minerals (PGMs) of the Os–Ir–Ru and Pt–Fe systems from placer deposits of the South Urals are zonal and relatively homogenous in composition and can contain inclusions of PGE sulfides, arsenides, sulfarsenides, and antimonides.
V.V. Zaykov   +4 more
doaj  

VOLBORTHITE AND STRENGITE – RARE MINERALS FROM THE MEDNORUDYANSKOE MALACHITE DEPOSIT (URALS) [PDF]

open access: yesМинералогия, 2015
History of volborthite and strengite findings in Russia and the World is discussed. The chemical composition of these minerals from the Mednorodyanskoe deposit, as well as morphology of volborthite crystals, X-ray pattern of strengite and its IR spectrum
V.I. Popova   +4 more
doaj  

Ultramafic xenoliths from the Bearpaw Mountains, Montana, USA: evidence for multiple metasomatic events in the lithospheric mantle beneath the Wyoming craton [PDF]

open access: yes, 2004
Ultramafic xenoliths in Eocene minettes of the Bearpaw Mountains volcanic field (Montana, USA), derived from the lower lithosphere of the Wyoming craton, can be divided based on textural criteria into tectonite and cumulate groups. The tectonites consist
Abidin, M.S.Z.   +11 more
core   +2 more sources

Dust-grain processing in circumbinary discs around evolved binaries. The RV Tauri spectral twins RU Cen and AC Her [PDF]

open access: yes, 2007
Context: We study the structure and evolution of circumstellar discs around evolved binaries and their impact on the evolution of the central system. Aims: To study in detail the binary nature of RUCen and ACHer, as well as the structure and mineralogy ...
Dominik, C.   +4 more
core   +9 more sources

SR-FTiR microscopy and FTIR imaging in the earth sciences

open access: yes, 2013
During the last decades, several books have been devoted to the application of spectroscopic methods in mineralogy. Several short courses and meetings have addressed particular aspects of spectroscopy, such as the analysis of hydrous components in ...
Bellatreccia, F.   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy