scholarly journals Investigation of Thulium and Other Rare Earth Element Mass Fractions in NIST SRM 1632a Bituminous Coal Reference Material by Quadrupole ICP-MS

2018 ◽  
Vol 42 (2) ◽  
pp. 263-269 ◽  
Author(s):  
Elliot Roth ◽  
Tracy L. Bank ◽  
Evan Granite
Keyword(s):  
Rare Earth ◽  
Reference Material ◽  
Rare Earth Element ◽  
Earth Element ◽  
Bituminous Coal ◽  
Icp Ms ◽  
Mass Fractions

scholarly journals A User‐Friendly Workbook to Facilitate Rapid and Accurate Rare Earth Element Analyses by ICP‐MS for Multispiked Samples

2020 ◽  
Vol 21 (9) ◽  
Author(s):  
Y. Wu ◽  
L. D. Pena ◽  
S. L. Goldstein ◽  
C. Basak ◽  
L. L. Bolge ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Icp Ms ◽  
User Friendly

Rare earth element determination in heavy crude oil by USN-ICP-MS after digestion using a microwave-assisted single reaction chamber

2016 ◽  
Vol 31 (6) ◽  
pp. 1185-1191 ◽  
Author(s):  
Gabriel T. Druzian ◽  
Leticia S. F. Pereira ◽  
Paola A. Mello ◽  
Marcia F. Mesko ◽  
Fabio A. Duarte ◽  
...  
Keyword(s):  
Rare Earth ◽  
Crude Oil ◽  
Rare Earth Element ◽  
Earth Element ◽  
Reaction Chamber ◽  
Heavy Crude Oil ◽  
Microwave Assisted ◽  
Icp Ms ◽  
Heavy Crude ◽  
Single Reaction

In this work a method for rare earth element (REE) determination by inductively coupled plasma mass spectrometry (ICP-MS) was proposed after heavy crude oil digestion by microwave-assisted wet digestion (MAWD) using a single reaction chamber (SRC) system.

scholarly journals Mineralogical and geochemical characterisation of the Kipawa syenite complex, Quebec: implications for rare-earth element deposits

2022 ◽  
Author(s):  
S Matte ◽  
M Constantin ◽  
R Stevenson
Keyword(s):  
Rare Earth ◽  
Rare Earth Element ◽  
Earth Element ◽  
Crustal Contamination ◽  
Hydrothermal Activity ◽  
Trace Element Geochemistry ◽  
Element Geochemistry ◽  
Gneissic Granite ◽  
Icp Ms ◽  
Regional Tectonic

The Kipawa rare-earth element (REE) deposit is located in the Parautochton zone of the Grenville Province 55 km south of the boundary with the Superior Province. The deposit is part of the Kipawa syenite complex of peralkaline syenites, gneisses, and amphibolites that are intercalated with calc-silicate rocks and marbles overlain by a peralkaline gneissic granite. The REE deposit is principally composed of eudialyte, mosandrite and britholite, and less abundant minerals such as xenotime, monazite or euxenite. The Kipawa Complex outcrops as a series of thin, folded sheet imbricates located between regional metasediments, suggesting a regional tectonic control. Several hypotheses for the origin of the complex have been suggested: crustal contamination of mantle-derived magmas, crustal melting, fluid alteration, metamorphism, and hydrothermal activity. Our objective is to characterize the mineralogical, geochemical, and isotopic composition of the Kipawa complex in order to improve our understanding of the formation and the post-formation processes, and the age of the complex. The complex has been deformed and metamorphosed with evidence of melting-recrystallization textures among REE and Zr rich magmatic and post magmatic minerals. Major and trace element geochemistry obtained by ICP-MS suggest that syenites, granites and monzonite of the complex have within-plate A2 type anorogenic signatures, and our analyses indicate a strong crustal signature based on TIMS whole rock Nd isotopes. We have analyzed zircon grains by SEM, EPMA, ICP-MS and MC-ICP-MS coupled with laser ablation (Lu-Hf). Initial isotopic results also support a strong crustal signature. Taken together, these results suggest that alkaline magmas of the Kipawa complex/deposit could have formed by partial melting of the mantle followed by strong crustal contamination or by melting of metasomatized continental crust. These processes and origins strongly differ compare to most alkaline complexes in the world. Additional TIMS and LA-MC-ICP-MS analyses are planned to investigate whether all lithologies share the same strong crustal signature.

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