Results 1 to 10 of about 326,163 (350)

CRYSTALLIZATION CONDITIONS OF PLAGIOCLASE IN VOLCANIC COMPLEXES OF SULAWESI ISLAND, PACIFIC OCEAN [PDF]

open access: yesМинералогия, 2023
Mineralogical and thermobarogeochemical studies allowed us to reveal the crystallization conditions of plagioclase in volcanic complexes of Sulawesi Island (Pacific Ocean).
A.V. Kotlyarov   +5 more
doaj   +1 more source

Revealing the Mineralogical and Petrographic Signs of Fluid-Related Processes in the Kelebia Basement Area (Szeged Basin, S Hungary): A Case Study of Alpine Prograde Metamorphism in a Permo-Triassic Succession

open access: yesGeofluids, 2023
The Szeged Basin (S Hungary) occupies a relatively central position within the European Alpine–Carpathian–Dinaride orogenic belt. An ongoing controversy about the tectonic position of the study area indicates that its evolution is still not fully ...
Andrea Varga   +2 more
doaj   +1 more source

Trace-elements in minerals from unusual rocks of the Southern Urals

open access: yesЛитосфера, 2019
Research subject. This articles presents the data obtained in the course of 75 analytical studies on a wide range of minerals (amphiboles, pyroxenes, garnets, spinels, olivines, anorthites, corundums, epidotes, apatites, clinochlore, dolomite, calcite ...
V. G. Korinevsky   +4 more
doaj   +1 more source

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   +13 more sources

PARADIGMS AND DIRECTIONS OF MINERALOGY [PDF]

open access: yesМинералогия, 2015
The article contains comments and additions to V.A. Popov's article "On the Essence of the Mineral World and the Paradigms of Mineralogy" (Mineralogy. 2015. No. 1. Pp. 6-12).
O.K. Ivanov
doaj  

Chemical weathering and provenance evolution of Holocene–Recent sediments from the Western Indus Shelf, Northern Arabian Sea inferred from physical and mineralogical properties [PDF]

open access: yes, 2012
We present a multi-proxy mineral record based on X-ray diffraction and diffuse reflectance spectrophotometry analysis for two cores from the western Indus Shelf in order to reconstruct changing weathering intensities, sediment transport, and provenance ...
Clift, Peter D.   +5 more
core   +2 more sources

FAHLORES IN PALEOZOIC VENT CHIMNEYS FROM THE URALS AND RUDNY ALTAI VOLCANOGENIC MASSIVE SULFIDE DEPOSITS [PDF]

open access: yesМинералогия, 2015
Tennantite, tetrahedrite-tennantite, tetrahedrite and their Ag-, Bi-, Hg-, and Te-containing fahlore varieties including pure end-member of goldfieldite occur in mid-temperature galena-sphalerite, quartz-marcasite and quartz-chalcopyrite zones of vent ...
V.V. Maslennikov   +7 more
doaj  

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  

Microstructure, micro-inclusions, and mineralogy along the EGRIP (East Greenland Ice Core Project) ice core – Part 2: Implications for palaeo-mineralogy [PDF]

open access: yesThe Cryosphere, 2022
Impurities in polar ice do not only allow the reconstruction of past atmospheric aerosol concentrations but also influence the physical properties of the ice.
N. Stoll   +7 more
doaj   +1 more source

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