Results 151 to 160 of about 318,456 (400)

OXIDES AND SILICATES OF RARE AND RARE-EARTH ELEMENTS IN ALKALINE ROCKS OF THE ILMENOGORSKY BLOCK (SOUTHERN URALS) [PDF]

open access: yesМинералогия, 2017
A significant part of the REE and rare elements in the rocks of the Ilmenogorsky block forms its own minerals. Oxides and silicates of rare and rare-earth elements in alkaline rocks of Ilmenogorsky block (Southern Urals) include oxynatropyrochlore ...
E.P. Makagonov   +2 more
doaj  

An integrated mineralogical, petrographic, light stable isotope and noble gas investigation of Sahara 99201 ureilite [PDF]

open access: yes, 2001
New ureilite Sahara 99201 has been investigated to determine mineralogy, petrography, light stable isotopes and noble gases. The sample is a typical olivine pigeonite ureilite (Fo 78, Wo 10, En 72).
Franchi, Ian   +5 more
core  

Anomalously cool clumped isotope temperatures in tropical lagoon carbonates

open access: yesThe Depositional Record, EarlyView.
Carbonate clumped isotopes were used to reconstruct paleoclimate from lagoon sediments in the central tropical Pacific. Results were anomalously cool compared to modern measurements and other paleoclimate records. This study highlights the important of understanding carbonate facies and depositional environments in interpreting clumped isotope results.
D. A. Wyman‐Feravich   +4 more
wiley   +1 more source

EVOLUTION OF CHEMICAL COMPOSITION AND CRYSTAL MORPHOLOGY OF AEGIRIN DURING FORMATION OF THE VISHNEVOGORSK ALKALINE CARBONATITE COMPLEX (SOUTH URALS) [PDF]

open access: yesМинералогия, 2018
The chemical composition and crystal morphology of aegirine changed during formation of the Vishnevogorsk alkaline carbonatite complex. Fenitization of host metamorphic rocks, early vein syenites and pegmatites resulted in crystallization of pyroxenes ...
E.P. Makagonov   +2 more
doaj  

Eustatic and tectonic controls on mixed carbonate‐siliciclastic ramp deposits in the South Pyrenean foreland basin: The Eocene Alveolina Limestone

open access: yesThe Depositional Record, EarlyView.
The lower Eocene Alveolina Limestone records the global early Eocene transgression, but is equally affected by tectonic movements of the Montsec active thrust located in its hangingwall. Tectonic movements and the early Eocene transgression facilitated a detrital provenance shift in the southern Pyrenean foreland from a southern provenance in the ...
Stefan Schröder   +3 more
wiley   +1 more source

Development of Inquire Subsystem of Process Mineralogy

open access: yesGong-kuang zidonghua, 2011
In view of requirements of searching mineralogy data in minerals processing research, an inquire subsystem of process mineralogy was developed by use of Microsoft Visual Studio 2008, SQL Server 2005 and Power Desinger as development tools, and a minerals
DENG Hai-bo, WANG Na
doaj  

TRACE ELEMENTS IN ZONAL OLIVINE OF BRONZE AGE METALLURGICAL SLAGS, SOUTH URALS [PDF]

open access: yesМинералогия, 2018
Metallurgical artifacts including Cu-bearing slag fragments were found in the Bronze Age settlements of the South Urals. The slags from settlements of the Sintashta culture (Kamenny Ambar, Ustye and Sarym-Sakly) are mainly composed of olivine, magnetite ...
M.N. Ankushev   +2 more
doaj  

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