Results 11 to 20 of about 4,124,611 (238)
Rare earth element geochemistry of upper Ordovician cherts from the Southern Uplands of Scotland [PDF]
, 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]
, 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
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]
, 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
Palaeoenvironmental signatures revealed from rare earth element (REE) compositions of vertebrate microremains of the Vesiku Bone Bed (Homerian, Wenlock), Saaremaa Island, Estonia [PDF]
, 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
Cailiao gongcheng, 2018 The effect of rare earth element Ce, Sc and Er on TiB2 particles and matrix alloy micros-tructure of TiB2/Al composites was studied with in situ synthesis method. It shows that the addition of rare earth element improves the microstructure and properties
QU Min +5 more
doaj +1 more source
Bulletin of the Mineral Research and Exploration, 2020 This study was carried out in 5 locations between Burdur and Isparta in the inner southern part of Isparta Bend. The study aims to determine the rare earth element (REE) concentrations in the soil samples collected from the field and to interpret the ...
Ebru Tat, Mustafa Gurhan Yalcın
doaj +1 more source
Zhongguo shipin weisheng zazhi, 2021 ObjectiveTo explore the concentrations of rare earth elements (Rare earth elements, REEs) in drinking water in rare earth mining and non-mining areas in Shandong, Guangdong, and Jiangxi provinces of China.MethodsTypical rare earth mining areas and 3 non ...
LOU Minhan +8 more
doaj +1 more source
Effect of scandium on amylase production by Bacillus subtilis
Studies in Science and Technology, 2023 Scandium, lutetium, and gadolinium were selected from rare earth elements, and their effects on amylase activity secreted into the culture supernatant were examined when they were added to the NG medium.
Nobuki Hayase +2 more
doaj +1 more source
New deltahedral architectures of rhodium-mediated Pn73− (Pn = Sb and Bi) cages
Nano ResearchThe reactions of K5Pn4 (Pn = Sb and Bi) and CpRh(PPh3)2 (Cp = C5H5, cyclopentadiene) in ethylenediamine (en) solutions resulted in a series of new Pn73− adducts, {Pn8[Rh(PPh3)]2}2−, {Sb7[Rh(PPh3)]2}2−, and {Sb7[Rh(PPh3)]3}2−, through slight variations in
Lei Qiao +2 more
doaj +1 more source
Geosciences, 2020 Detrital monazite geochronology has been used in provenance studies. However, there are complexities in the interpretation of age spectra due to their wide occurrence in both igneous and metamorphic rocks. We use the multinomial logistic regression (MLR)
Keita Itano +3 more
doaj +1 more source