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Measurement of SIMS Instrumental Mass Fractionation of Pb Isotopes During Zircon Dating

Stern, Richard; Bodorkos, Simon; Kamo, Sandra L; Hickman, Arthur H; Corfu, Fernando

Description

An igneous zircon reference material (OG1) was characterised for U-Pb isotopes by ID-TIMS, and utilised to evaluate SIMS (SHRIMP) instrumental mass fractionation (IMF) of radiogenic Pb isotopes (207 Pb*/206Pb*). The TIMS207Pb*/206Pb* reference value for OG1 was 0.29907 ± 0.00011 (95% confidence limit), 3465.4 ± 0.6 Ma. The high207Pb* (∼ 30 μg g-1), negligible common Pb, and isotopic homogeneity permitted precise (± 1-2‰)207Pb*/206Pb* measurements within the analytical sessions. External...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
URI: http://hdl.handle.net/1885/50244
Source: Geostandards and Geoanalytical Research
DOI: 10.1111/j.1751-908X.2009.00023.x

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