Results 11 to 20 of about 5,131,582 (279)

Rare earth element geochemistry of upper Ordovician cherts from the Southern Uplands of Scotland [PDF]

open access: yes, 1999
Caradoc and Ashgill radiolarian cherts and siliceous mudstones from the Southern Uplands preserve primary rare earth element (REE) signatures which are comparable to those of more recent deposits from continental margin settings.
Armstrong, H.A., Owen, A.W., Floyd, J.D.
core   +7 more sources

Use of rare earth oxides as tracers to identify sediment source areas for agricultural hillslopes [PDF]

open access: yes, 2010
Understanding sediment sources is essential to enable more effective targeting of in-field mitigation approaches to reduce diffuse pollution from agricultural land.
Quinton, John, Deasy, C.
core   +6 more sources

Examples of tetrad effect in lanthanides in natural systems [PDF]

open access: yesGeologia USP. Série Científica, 2014
The irregular patterns of rare earth elements, caused by the tetrad effect are revised and discussed in this work, covering its concept and subdivision into M and W types, quantification and the mechanisms that led to its occurrence in magmatic ...
Lauro Valentim Stoll Nardi   +2 more
doaj   +1 more source

Determination of Rare Earth Elements in Coal-related Samples by Inductively Coupled Plasma-Mass Spectrometry with Acid Dissolution

open access: yesYankuang ceshi, 2023
BACKGROUNDCoal and coal-bearing rock series can enrich beneficial elements such as rare earth under specific geological conditions, forming coal-related key metal deposits.
Xin ZHANG   +6 more
doaj   +1 more source

Rare earth geochemistry of Arenig cherts from the Ballantrae Ophiolite and Leadhills Imbricate Zone, southern Scotland: implications for origin and significance to the Caledonian Orongeny [PDF]

open access: yes, 1999
Rare earth element (REE) data from low to mid-Arenig cherts are used to test competing models for the early Ordovician evolution of the Laurentian margin in the northern British Isles.
Armstrong, H.A., Owen, A.W., Floyd, J.D.
core   +8 more sources

Quantitative analysis of rare earth elements in Mg–Zn–RE(Ce, Y, Gd)–Zr alloy

open access: yesMaterials Research Express, 2022
The solid solution amount of rare earth elements and the mass fraction of compounds were measured by low-temperature phase separation technology, the existing forms of rare earth elements in ZK-RE(Ce, Y, Gd) alloy were quantitatively studied, and the ...
Yuguang Li   +4 more
doaj   +1 more source

Lanthanides Release and Partitioning in Municipal Wastewater Effluents

open access: yesToxics, 2022
The use of lanthanides is increasing in our society, whether in communication technologies, transportation, electronics or medical imaging. Some lanthanides enter urban wastewater and flow through municipal wastewater treatment plants (WWTPs).
Patrice Turcotte   +3 more
doaj   +1 more source

Rare earth elements in coastal sediments of the Northern Galician Shelf: influence of geological features [PDF]

open access: yes, 2012
Prego, R., Caetano, M., Bernardez, P., Brito, P., Ospina-Alvarez, N., & Vale, C. (2012). Rare earth elements in coastal sediments of the Northern Galician Shelf: influence of geological features. Continental Shelf Research, 35, 75–85.
Caetano, M   +11 more
core   +1 more source

Direct Recovery of the Rare Earth Elements Using a Silk Displaying a Metal-Recognizing Peptide

open access: yesMolecules, 2020
Rare earth elements (RE) are indispensable metallic resources in the production of advanced materials; hence, a cost- and energy-effective recovery process is required to meet the rapidly increasing RE demand.
Nobuhiro Ishida   +7 more
doaj   +1 more source

Palaeoenvironmental signatures revealed from rare earth element (REE) compositions of vertebrate microremains of the Vesiku Bone Bed (Homerian, Wenlock), Saaremaa Island, Estonia [PDF]

open access: yes, 2015
The Estonian Journal of Earth Sciences is an open access journal and applies the Creative Commons Attribution 4.0 International License CC BY to all its papers (http://creativecommons.org/licenses/by/4.0/).
Alberto Pérez-Huerta   +13 more
core   +2 more sources

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