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Refertilized continental root controls the formation of the Mianning–Dechang carbonatite-associated rare-earth-element ore system

open access: yesCommunications Earth & Environment, 2023
Rare earth element ore deposits associated with carbonatite derived from Earth’s mantle supply half of the world’s rare earth element. However, the formation of carbonatite and initial enrichment and transport of rare earth element in the mantle, is ...
Zeng-Qian Hou   +10 more
doaj   +2 more sources

Rare-earth elements [PDF]

open access: yesProfessional Paper, 2017
This chapter investigates the current rare earth elements trade in the Asia-Pacific Region. It begins by noting the elements that fall within this category of minerals, noting their rarity. It then looks at the trade in the commodity and some of the issues associated with its supply chain.
Bradley S. Van Gosen   +4 more
  +4 more sources

Significant Enrichment of Rare Earth Element Concentrations in Stream Sediments of Sharm El-Sheikh Area, Southern Sinai-Egypt: Geochemical Prospecting and Heavy Mineral Survey

open access: yesIraqi Geological Journal, 2023
Economic rare earth element bearing-heavy mineral accommodation in alluvial deposits (stream sediments) is a well-known process caused by varying rates of weathering and transportation of heavy minerals and sediments, which is significant in ...
Omnia Elsayed   +3 more
doaj   +1 more source

Geochemical characteristics of rare earth elements in groundwater of Banji Coal Mine

open access: yes能源环境保护, 2023
Rare earth elements possess stable and similar geochemical properties, making them widely utilized in the study of groundwater-aquifer interactions and geochemical processes.
DU Shaoneng   +5 more
doaj   +1 more source

Fractionation and Distribution of Rare Earth Elements in Marine Sediment and Bioavailability in Avicennia marina in Central Red Sea Mangrove Ecosystems

open access: yesPlants, 2021
Rare earth element fractionation and distribution in the coastal ecosystem have been of significant concern and are recognized worldwide as emerging micro-pollutants. However, unlike other metals such as trace elements, little is known about their uptake
Abdullahi Bala Alhassan   +1 more
doaj   +1 more source

Rare earth elements in plastics [PDF]

open access: yesScience of The Total Environment, 2021
Because of their unique properties, rare earth elements (REEs), comprising the lanthanide elements plus Sc and Y, have a variety of integral applications in modern electronic equipment. Consequently, it has been suggested that REEs may act as contaminants of and tracers for recycled electrical and electronic plastics in consumer goods.
Andrew, Turner   +2 more
openaire   +2 more sources

Prediction of Pr/Nd Element Content Based on One-Dimensional Convolution with Multi-Residual Attention Blocks

open access: yesApplied Sciences, 2023
Insufficient color feature extraction can lead to poor prediction performance in rare earth element composition estimation. To address this issue, we propose a one-dimensional convolutional method for predicting rare earth element composition.
Fangping Xu, Jun Chen, Jianyong Zhu
doaj   +1 more source

Research Progress on Extraction Technology of Rare Earth Elementsfrom Coal Ash

open access: yesKuangchan zonghe liyong, 2023
This is an essay in the field of mining engineering. High-value utilization of rare earths in fly ash can effectively alleviate the environmental pollution caused by fly ash in my country, expand the supply chain of rare earth raw materials, and ensure ...
Zhijuan Gao, Xiangren Wang
doaj   +1 more source

On the Extraction of Rare Earth Elements from Geothermal Brines

open access: yesResources, 2017
The availability of rare earth elements from primary resources has come into question in the last two decades. This has sparked various government and industry initiatives to examine potential rare earth element resources apart from virgin ore bodies ...
York R. Smith   +2 more
doaj   +1 more source

Distribution Characteristics of Rare Earth Elements in Plants and Soils from the Bayan Obo Mining Area

open access: yesYankuang ceshi, 2019
BACKGROUND The Bayan Obo mining area is the main producing area of rare earth elements. During mining and refining, rare earth elements enter plants through migration and enrichment.
ZHANG Li-feng   +2 more
doaj   +1 more source

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