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Rutile R632 – A New Natural Reference Material for U‐Pb and Zr Determination
Author(s) -
Axelsson Emelie,
Pape Jonas,
Berndt Jasper,
Corfu Fernando,
Mezger Klaus,
Raith Michael M.
Publication year - 2018
Publication title -
geostandards and geoanalytical research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.037
H-Index - 73
eISSN - 1751-908X
pISSN - 1639-4488
DOI - 10.1111/ggr.12213
Subject(s) - rutile , isotope dilution , analytical chemistry (journal) , thermal ionization mass spectrometry , mineralogy , isotope , materials science , mass spectrometry , geology , radiochemistry , chemistry , ionization , environmental chemistry , nuclear physics , chromatography , paleontology , ion , physics , organic chemistry
A new natural rutile reference material is presented, suitable for U‐Pb dating and Zr‐in‐rutile thermometry by microbeam methods. U‐Pb dating of rutile R632 using laser ablation ICP ‐ MS with both magnetic sector field and quadrupole instruments as well as isotope dilution‐thermal ionisation mass spectrometry yielded a concordia age of 496 ± 2 Ma. The high U content (> 300 μg g −1 ) enabled measurement of high‐precision U‐Pb ages despite its young age. The sample was found to have a Zr content of 4294 ± 196 μg g −1 , which makes it an excellent complementary reference material for Zr‐in‐rutile thermometry. Individual rutile grains have homogeneous compositions of a number of other trace elements including V, Cr, Fe, Nb, Mo, Sn, Sb, Hf, Ta and W. This newly characterised material significantly expands the range of available rutile reference materials relevant for age and temperature determinations.