Results 81 to 90 of about 7,496 (223)

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

open access: yesGeochemistry, 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   +4 more
doaj   +1 more source

Regional geochemical and geophysical surveys in the Berwyn Dome and adjacent areas, north Wales [PDF]

open access: yes, 1984
This report describes stream sediment and gravity surveys carried out across the Berwyn Dome and adjacent areas. The gravity survey confirmed the presence of a broad regional Bouguer anomaly low in the central part of the Dome, on which is ...
Cooper, D.C., Cornwell, J.D., Rollin, K.
core  

The making of pure quartzose sand in continental interiors: Paraná River (Brazil and Argentina)

open access: yesSedimentology, Volume 73, Issue 3, Page 802-837, April 2026.
ABSTRACT As part of a comprehensive project on sedimentary processes in South America, this study focuses on sediment generation in the intracratonic Paraná Basin and monitors the evolution of sand composition along the Paraná River from central Brazil to the Río de la Plata estuary in Argentina.
Eduardo Garzanti   +5 more
wiley   +1 more source

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

open access: yesМинералогия, 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)

open access: yesGeoresursy, 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   +2 more
doaj   +1 more source

Stability and isotopic dating of monazite and allanite in partially molten rocks: examples from the Central Alps [PDF]

open access: yes, 2018
We investigated the stability of monazite and allanite as a function of bulk rock composition within several types of Tertiary Alpine anatexites, characterized by different compositions and melting reactions, but similar P-T conditions of melting.
Berger, Alfons   +2 more
core  

Studi Geologi Dan Logam Tanah Jarang (RE) Daerah Air Gegas, Bangka Selatan [PDF]

open access: yes, 2013
Tanah Jarang (RE) merupakan komoditas yang sangat berharga baik untuk industri maupun untuk PLTN. Secara kimia RE terdapat dalam dalam ikatan fosfat (P) yang pada mineral monasit, xenotim, zirkon berasosiasi dengan mineral kasiterit, magnetit, ilmenit ...
Soetopo, B. (Bambang)
core   +2 more sources

A New Concept for an Integrated Mapping of Rare‐Earth Elements using Laser–Induced Fluorescence and Reflectance Spectroscopy

open access: yesAdvanced Sensor Research, Volume 5, Issue 3, March 2026.
We introduce a new integrated line‐scan sensor system that combines hyperspectral and laser‐induced fluorescence imaging as a non‐invasive alternative characterization technique specifically suited for rare‐earth element (REE) mapping and identification. We investigate in detail the potential and limitations in comparison to state‐of‐the‐art approaches
Titus Abend   +7 more
wiley   +1 more source

Transcription of Nanofibrous Cerium Phosphate Using a pH-Sensitive Lipodipeptide Hydrogel Template [PDF]

open access: yes, 2017
A novel and simple transcription strategy has been designed for the template-synthesis of CePO4 xH2O nanofibers having an improved nanofibrous morphology using a pH-sensitive nanofibrous hydrogel (glycine-alanine lipodipeptide) as structure-directing ...
Escuder, Beatriu   +4 more
core   +3 more sources

A Novel Deep Temporal Feature Enhanced Just‐in‐Time Learning Framework for Predicting Rare Earth Component Content

open access: yesAsia-Pacific Journal of Chemical Engineering, Volume 21, Issue 2, March/April 2026.
ABSTRACT Real‐time online detection of rare earth element component contents is a crucial link in ensuring the stable production of the rare earth extraction and separation industry and improving the quality of rare earth products. The traditional methods for predicting the content of rare earth element components based on just‐in‐time learning fail to
Zhaohui Huang   +6 more
wiley   +1 more source

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