Results 51 to 60 of about 51,695 (270)

Complex examination of the Upper Paleozoic siliciclastic rocks from southern Transdanubia, SW Hungary—Mineralogical, petrographic, and geochemical study [PDF]

, 2007
A vertical section of Upper Paleozoic sandstones from southern Transdanubia (Mecsek-Villány area, Tisza mega-unit, Hungary) has been analyzed for major and trace elements, including rare earth elements (REEs).
Á, Arribas, Awdankiewicz, Balogh, Bauluz, Bhatia, Bhatia, Biscaye, Brü, Cox, Csontos, Csontos, Csontos, Cullers, Cullers, Fazekas, Fedo, Gaillardet, Garver, Golonka, Haas, Huang, Kü, Lee, Nagy, Nesbitt, Noda, Pearce, Preston, Varga, Varga, Varga, Varga, Watanabe, Willan, Zimmermann   +35 more
core   +1 more source

The Fiery Eyes of a Maenad: Origin Determination of Faceted Garnet Eye Inlays in a Roman Bronze Bust From Southern Tyrol

Archaeometry, EarlyView.
ABSTRACT In 1837, the Tyrolean State Museum Ferdinandeum in Innsbruck, Austria, purchased a Roman bronze statue of a maenad from the 2nd century ce with red garnets as facetted eye inlays found near Brixen, Southern Tyrol. These garnets were investigated using optical microscopy, a portable hand‐held and a stationary micro‐X‐ray fluorescence device, as
H. Albert Gilg, Simon Wagner, Anton Höck, Peter Tropper   +3 more
wiley   +1 more source

Discriminating cool-water from warm-water carbonates and their diagenetic environments using element geochemistry: the Oligocene Tikorangi Formation (Taranaki Basin) and the dolomite effect [PDF]

, 2004
Fields portrayed within bivariate element plots have been used to distinguish between carbonates formed in warm- (tropical) water and cool- (temperate) water depositional settings.
Al‐Aasm I. S., Al‐Hashimi W, Brand U., Brand U., Hood S. D., Hood S. D., Hood S. D., James N. P., Lumsden D. N., Morrison J. O., Morse J. W., Rao C. P., Tucker M., Veizer J., Winefield P.   +14 more
core   +2 more sources

Learning Across the Divide: Understanding Knowledge Sharing Through Petrographic Analysis on Ceramics From the Rhine‐Meuse Delta During the Middle to Late Neolithic Transition (3400–2200 bce)

Archaeometry, EarlyView.
ABSTRACT Vlaardingen (VL) communities on the Dutch West coast (3400–2200 bce) are part of a unique, long‐term continuity in the European Neolithic. Despite large‐scale changes in European populations during the Neolithic, the genomic diversity and cultural practices of VL communities can be retraced to the Mesolithic.
Jisca de Bruin, Erik Kroon, Lasse van den Dikkenberg, Dennis Braekmans   +3 more
wiley   +1 more source

Synthesis and crystal structure of ABW-type SrFe1.40V0.60O4

Acta Crystallographica Section E: Crystallographic Communications, 2020
Single crystals of SrFe1.40V0.60O4, strontium tetraoxidodi[ferrate(III)/vanadate(III)], have been obtained as a side product in the course of sinter experiments aimed at the synthesis of double perovskites in the system SrO–Fe2O3–V2O5.
Thomas Gstir, Volker Kahlenberg, Hannes Krüger, Simon Penner   +3 more
doaj   +1 more source

New synthetic [LREE (LREE = La, Ce, Pr, Sm), Pb]-phosphate phases

Mineralogia, 2023
Search for inexpensive and efficient methods of critical raw materials recovery is of great importance across the world due to growing demand for green technologies.
Staszel Kacper, Jędras Anna, Skalny Mateusz, Dziewiątka Klaudia, Urbański Kamil, Sordyl Julia, Rybka Karolina, Manecki Maciej   +7 more
doaj   +1 more source

Jadeite in Continental Subduction: Its Preservation, Breakdown and Pseudomorphic Replacement in Erzgebirge UHP Gneisses

Journal of Metamorphic Geology, EarlyView.
ABSTRACT The absence of jadeite in regions where subduction of continental crust has been documented by other high‐pressure (HP) or ultrahigh‐pressure (UHP) minerals is striking. This study presents only the second discovery of jadeite in the crystalline rocks of the Erzgebirge, a region known for its occurrences of microdiamond, coesite and omphacite ...
Ondrej Lexa, Martin Racek, Petr Jeřábek, Benjamin Paddon   +3 more
wiley   +1 more source

Rb2Lu[Si4O10]F, a tubular chain silicate

Acta Crystallographica Section E, 2014
Single crystals of Rb2Lu[Si4O10]F (dirubidium lutetium tetrasilicate fluoride) were obtained in flux-synthesis experiments in the system SiO2–Lu2O3–RbF. The compound belongs to the group of tubular chain silicates, i.e.
Volker Kahlenberg, Tanja Manninger
doaj   +1 more source

Radioecological and geochemical peculiarities of cryoconite on Novaya Zemlya glaciers

Scientific Reports, 2021
In recent years, cryoconite has received growing attention from a radioecological point of view, since several studies have shown that this material is extremely efficient in accumulating natural and anthropogenic radionuclides.
Alexey Miroshnikov, Mikhail Flint, Enver Asadulin, Ramiz Aliev, Andrei Shiryaev, Arsenii Kudikov, Vladimir Khvostikov   +6 more
doaj   +1 more source

Expanding the application of the Eu-oxybarometer to the lherzolitic shergottites and nakhlites: Implications for the oxidation state heterogeneity of the Martian interior [PDF]

, 2009
Experimentally rehomogenized melt inclusions from the nakhlite Miller Range 03346 (MIL 03346) and the lherzolitic shergottite Allan Hills 77005 (ALH 77005) have been analyzed for their rare earth element (REE) concentrations in order to characterize the ...
Elkins-Tanton, Linda, McCanta, Molly C., Rutherford, Malcolm J.   +2 more
core   +1 more source