Results 21 to 30 of about 59,423 (302)

Occurrences of Rare-Earth Elements in Heavy Mineral Sand Deposits, Coastal Plain, Georgia

, 2023
Rare earth elements (REE) are critical constituents in many modern technologies and products. Five samples (beach sands, gangue from Upper Coastal Plain Creataceous-early Tertiary sandstones, and Ti-Zr heavy mineral concentrates) were collected from ...
Al-Zehhawi, Mustafa
core   +1 more source

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

, 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, C. Deasy, J. N. Quinton, Deasy, C.   +3 more
core   +1 more source

Rare earth elements in plants

Biologia Plantarum, 2019
Since 1960, the positive effects of rare earth elements (REE) on crop physiology have been observed, and support for photosynthesis, biomass accumulation, secondary metabolites, or enzymes has been reported in 40% of studies.
M. Kovaříková, I. Tomášková, P. Soudek   +2 more
doaj   +1 more source

Geochemical characteristics and mining prospects of REE in Lugou coal mine of Xinmi coalfield

矿业科学学报, 2020
The content of rare earth elements and their occurrence characteristics under low temperature ashing conditions in Lugou coal mine of Xinmi coalfield were studied by XRD, XRF and ICP-MS analysis techniques.The results show that the total content of rare ...
Luo Zhonggeng, Li Chunhui, Wang Shikui, Liang Handong   +3 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

Plants, 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, Mohammed Othman Aljahdali   +1 more
doaj   +1 more source

Geochemical Characteristics of Limestone of Wonosari-Punung Formation, Gunungkidul Regency, Yogyakarta, Indonesia

Indonesian Journal on Geoscience, 2018
DOI: 10.17014/ijog.5.2.179-197A geochemical study was carried out to determine the geochemical characteristics of limestone in Wonosari-Punung Formation, and to suggest its depositional conditions and the source of rare earth elements.
Didik Dwi Atmoko, Anastasia Dewi Titisari, Arifudin Idrus   +2 more
doaj   +1 more source

Geopolitics and rare earth metals

, 2022
Rare earth elements are critical in the production of consumer products, renewables, and green, industrial, and defense products. Using more than thirty years of Japanese import data, we document statistically significant relationships between ...
Omura, Akihiro, Fan, John Hua, John Hua Fan, Eduardo Roca, Akihiro Omura, Roca, Eduardo   +5 more
core   +1 more source

Rare Earth Elements in Wetlands

, 2016
International ...
Davranche, Mélanie, Gruau, Gérard, Dia, Aline, Bouhnik-Le Coz, Martine, Marsac, Remi, Pédrot, Mathieu, Pourret, Olivier   +6 more
openaire   +3 more sources

Origin and fluxes of atmospheric REE entering an ombrotrophic peat bog in Black Forest (SW Germany): Evidence from snow, lichens and mosses [PDF]

, 2006
The fate of the Rare Earth Elements (REE) were investigated in different types of archives of atmospheric deposition in the Black Forest, Southern Germany: (1) a 70 cm snow pack collected on the domed part of a raised bog and representing 2 months of ...
Le Roux, Gaël, Aubert, D., Stille, Peter, Krachler, Michael, Shotyk, William, Kober, B., Kober, Bernd, Aubert, Dominique, Krachler, M., Stille, P., Shotyk, W., Le Roux, G., Cheburkin, A., Cheburkin, Andriy   +13 more
core   +1 more source

Online preconcentration ICP-MS analysis of rare earth elements in seawater

, 2012
The rare earth elements (REEs) with their systematically varying properties are powerful tracers of continental inputs, particle scavenging intensity and the oxidation state of seawater.
Stichel, Torben, Haley, Brian, Zieringer, Moritz, Hathorne, Ed C., Grasse, Patricia, Frank, Martin   +5 more
core   +1 more source