Hydrothermal transport, deposition, and fractionation of the REE: Experimental data and thermodynamic calculations

A Migdisov, AE Williams-Jones, J Brugger… - Chemical …, 2016 - Elsevier
For many years, our understanding of the behavior of the REE in hydrothermal systems was
based on semi-empirical estimates involving extrapolation of thermodynamic data obtained …

Experimental methods in chemical engineering: X‐ray absorption spectroscopy—XAS, XANES, EXAFS

A Iglesias‐Juez, GL Chiarello… - … Canadian Journal of …, 2022 - Wiley Online Library
Although X‐ray absorption spectroscopy (XAS) was conceived in the early 20th century, it
took 60 years after the advent of synchrotrons for researchers to exploit its tremendous …

Carbonate complexation enhances hydrothermal transport of rare earth elements in alkaline fluids

M Louvel, B Etschmann, Q Guan, D Testemale… - Nature …, 2022 - nature.com
Rare earth elements (REE), essential metals for the transition to a zero-emission economy,
are mostly extracted from REE-fluorcarbonate minerals in deposits associated with …

Rare earth element mobility in and around carbonatites controlled by sodium, potassium, and silica

M Anenburg, JA Mavrogenes, C Frigo, F Wall - Science Advances, 2020 - science.org
Carbonatites and associated rocks are the main source of rare earth elements (REEs),
metals essential to modern technologies. REE mineralization occurs in hydrothermal …

[HTML][HTML] REE minerals at the Songwe Hill carbonatite, Malawi: HREE-enrichment in late-stage apatite

S Broom-Fendley, AE Brady, F Wall, G Gunn… - Ore Geology …, 2017 - Elsevier
Compared to all published data from carbonatites and granitoids, the fluorapatite
compositions in the Songwe Hill carbonatite, determined by EPMA and LA ICP-MS, have the …

Carbonatite-related REE deposits: An overview

ZY Wang, HR Fan, L Zhou, KF Yang, HD She - Minerals, 2020 - mdpi.com
The rare earth elements (REEs) have unique and diverse properties that make them function
as an “industrial vitamin” and thus, many countries consider them as strategically important …

Multi-stage formation of REE minerals in the Palabora Carbonatite Complex, South Africa

R Johannes Giebel, CDK Gauert, MAW Marks… - American …, 2017 - degruyter.com
Abstract The 2060 Ma old Palabora Carbonatite Complex (PCC), South Africa, comprises
diverse REE mineral assemblages formed during different stages and reflects an …

[PDF][PDF] Carbonatitic versus hydrothermal origin for fluorapatite REE-Th deposits: Experimental study of REE transport and crustal “antiskarn” metasomatism

M Anenburg, JA Mavrogenes - American Journal of Science, 2018 - ajsonline.org
Nolans-type ore deposits contain REE and Th mineralization hosted in fluorapatite veins.
These veins intrude granulite facies rocks and are surrounded by a diopside selvage …

Revisiting the hydrothermal geochemistry of europium (II/III) in light of new in-situ XAS spectroscopy results

W Liu, B Etschmann, A Migdisov, H Boukhalfa… - Chemical …, 2017 - Elsevier
Abstract Knowledge of the mobility of Rare Earth Elements (REE) in crustal fluids is
important for understanding both the formation of REE deposits and their use as …

[HTML][HTML] The role of zircon in hydrothermal heavy REE mineralisation: The case for unconformity-related ore deposits of north-west Australia

JMJ Walsh, C Spandler - Chemical Geology, 2023 - Elsevier
Zircon is hailed for its chemical and physical durability, but can undergo extensive chemical
and structural modification due to radiation damage via the emission of alpha (α) particles …