학술논문
A Chemical Separation and Measuring Technique for Titanium Isotopes for Titanium Ores and Iron-Rich Minerals.
Document Type
Article
Author
Source
Subject
*TITANIUM ores
*MINERALS
*GOLD ores
*PLASMA instabilities
*TITANIUM
*ISOTOPES
*ORES
*MAGNETITE
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Language
ISSN
2075-163X
Abstract
Ti-isotope fractionation on the most Ti-rich minerals on Earth has not been reported. Therefore, we present a chemical preparation and separation technique for Ti-rich minerals for mineralogic, petrologic, and economic geologic studies. A two-stage ion-exchange column procedure modified from the previous literature is used in the current study to separate Ti from Fe-rich samples, while α-TiO2 does not require chemical separation. Purified solutions in conjunction with solution standards were measured on two different instruments with dry plasma and medium-resolution mode providing mass-dependent results with the lowest errors. 49/47TiOL-Ti for the solution and solids analyzed here demonstrate a range of >5 ‰ far greater than the whole procedural 1 error of 0.10 ‰ for a synthetic compound and 0.07 ‰ for the mineral magnetite; thus, the procedure produces results is resolvable within the current range of measured Ti-isotope fractionation in these minerals. [ABSTRACT FROM AUTHOR]