Results 61 to 70 of about 2,512,027 (122)

Characteristics of Treated Monazite in Different Particle Sizes to Upgrade the Rare Earth Elements Content by Using Mechanochemical and Roasting Processes

International Journal of Technology
Rare earth metals (REE) constitute one of the most crucial groups of elements globally. In Indonesia, deposits of REE have been recognized within monazite minerals extracted from tin mining operations in Bangka.
Matthew Alexander Tjhia, Muhammad Nur Fakhriy Yahya, Reza Miftahul Ulum   +2 more
doaj   +1 more source

Simultaneous in situ determination of U‐Pb and Sm‐Nd isotopes in monazite by laser ablation ICP‐MS

Geochemistry, Geophysics, Geosystems, 2014
Results are presented for in situ simultaneous determination of U‐Pb and Sm‐Nd isotopes in monazite using the Laser Ablation Split‐Stream (LASS) method. This method uses a laser ablation system coupled to a magnetic‐sector inductively coupled plasma mass
Dylan J. Goudie, Christopher M. Fisher, John M. Hanchar, James L. Crowley, John C. Ayers   +4 more
doaj   +1 more source

Episodic Arc Behavior in an Accretionary Orogen: Insights From the New England Orogen, Eastern Australia

Tectonics, Volume 45, Issue 10, October 2026.
Abstract Detrital zircon U–Pb geochronology from Triassic–Jurassic basins in the New England Orogen (NEO) constrains sediment provenance and episodic continental arc evolution along the eastern Gondwanan margin. Dominant zircon clusters at 270–230 Ma and 340–300 Ma in these basins were likely sourced from contemporaneous magmatism in the NEO ...
Yanxiong Zhang, Gideon Rosenbaum, Carlos Spier   +2 more
wiley   +1 more source

Unusual LREE-rich, peraluminous, monazite- or allanite-bearing pegmatitic granite in the central Grenville Province, Québec

, 2017
International audienceThis contribution presents an original study combining detailed mapping, petrography, whole-rock geochemistry and geochronological constraints on the recently identified LREE (Light Rare Earth Elements) occurrences associated with ...
Gervais, Félix, Groulier, Pierre-Arthur, Olivier Vanderhaeghe, Solgadi, Fabien, François Turlin, Abdelali Moukhsil, Marc Poujol, Félix Gervais, Turlin, François, Vanderhaeghe, Olivier, Fabien Solgadi, André-Mayer, Anne-Sylvie, Moukhsil, Abdelali, Pierre-Arthur Groulier, Poujol, Marc, Anne-Sylvie André-Mayer   +15 more
core   +1 more source

RARE EARTH MINERALS IN ALKALINE AND SUBALKALINE ROCKS OF THE BALBUK COMPLEX (SOUTH URALS) [PDF]

Минералогия, 2016
Mineral composition of alkaline and subalkaline rocks of the Balbuk complex (South Urals) is characterized. The major REE minerals are monazite-(Ce), allanite-(Ce), and rhabdophane-(Ce).
E.P. Makagonov, V.A. Kotlyarov
doaj  

Mineralogical and geochemical aspects of rare-earth elements behavior during metamorphism (on the example of the Upper Precambrian structural-material complexes of the Bashkir megaanticlinorium, South Urals)

Georesursy, 2020
The article provides new data on geochemistry and mineralogy of rare-earth elements (REE) in rocks of structural-material complexes of the Bashkir megaanticlinorium, which underwent metamorphic transformations of various nature: contact metamorphism ...
Sergey G. Kovalev, Andrey V. Maslov, Sergey S. Kovalev   +2 more
doaj   +1 more source

High Temporal Resolution Record of Flare‐Up Magmatism Reveals Tectonic and Local Controls on Crustal Thickening in the Cretaceous Continental Arc of the North Cascades

Tectonics, Volume 45, Issue 10, October 2026.
Abstract Magmatic output in continental arcs is often variable, with short‐lived flare‐ups separated by prolonged lulls. Flare‐ups commonly coincide with increased crustal thickness, which has been interpreted as both a cause and a consequence of elevated magmatism.
Sourav Karmakar, Sarnav Bakshi, Michael P. Eddy, Robert Miller, Stacia M. Gordon   +4 more
wiley   +1 more source

Exotic accessory minerals in layered chromities of the Campo Formoso complex (Brazil)

Geologica Acta, 2006
The Campo Formoso stratiform intrusive complex, in Bahia State, Brazil, considered to be of Paleoproterozoic age, consists of a tabular body of ultramafic rocks about 40 km long and 100-1100 m wide.
F. ZACCARINI, G. GARUTI, R. MARTIN
doaj   +1 more source

Source‐Independent Enrichment of Light Lanthanides: Microbial Mobilization, Selective Uptake, and Intracellular Storage

Environmental Microbiology, Volume 28, Issue 9, September 2026.
Only light lanthanides facilitate lanthanide‐dependent methylotrophy. In Beijerinckiaceae bacterium RH AL1, light lanthanides are enriched from diverse sources, including poorly soluble minerals, through a multilayered process involving mobilisation, selective uptake, and intracellular periplasmic storage.
Linda Gorniak, Sophie M. Gutenthaler‐Tietze, Alina Lobe, Lena J. Daumann, Robin Steudtner, Thorsten Schäfer, Frank Steiniger, Martin Westermann, Kirsten Küsel, Carl‐Eric Wegner   +9 more
wiley   +1 more source

MINERALOGY, GEOCHEMISTRY AND ECONOMIC POTENTIAL OF ZIRCON AND ASSOCIATED MINERALS IN DUBAYDIB SANDSTONE FORMATION, JORDAN

Iraqi Geological Journal, 2017
This study was conducted to evaluate the zircon minerals in Wadi Al-Mezrab, South Jordan. Zircon at the study area belongs to the Middle member of the Dubaydib Formation of the Middle Ordovician age.
Ahmad Al-Malabeh
doaj   +1 more source