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Magnesium Isotopic Compositions of International Geological Reference Materials
Author(s) -
Teng FangZhen,
Li WangYe,
Ke Shan,
Yang Wei,
Liu ShengAo,
Sedaghatpour Fatemeh,
Wang ShuiJiong,
Huang KangJun,
Hu Yan,
Ling MingXing,
Xiao Yan,
Liu XiaoMing,
Li XiaoWei,
Gu HaiOu,
Sio Corliss K.,
Wallace Debra A.,
Su BenXun,
Zhao Li,
Chamberlin Johnnie,
Harrington Melissa,
Brewer Aaron
Publication year - 2015
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/j.1751-908x.2014.00326.x
Subject(s) - seawater , igneous rock , metamorphic rock , reproducibility , geochemistry , mineralogy , geology , dolomite , sedimentary rock , magnesium , chemistry , chromatography , oceanography , organic chemistry
Magnesium isotopic compositions are reported for twenty‐four international geological reference materials including igneous, metamorphic and sedimentary rocks, as well as phlogopite and serpentine minerals. The long‐term reproducibility of Mg isotopic determination, based on 4‐year analyses of olivine and seawater samples, was ≤ 0.07‰ (2 s ) for δ 26 Mg and ≤ 0.05‰ (2 s ) for δ 25 Mg. Accuracy was tested by analysis of synthetic reference materials down to the quoted long‐term reproducibility. This comprehensive dataset, plus seawater data produced in the same laboratory, serves as a reference for quality assurance and inter‐laboratory comparison of high‐precision Mg isotopic data.