Further Characterisation of the 91500 Zircon Crystal

By M. Wiedenbeck, J. Hanchar, William H. Peck, P. Sylvester, J. Valley, M. Whitehouse, A. Kronz, Y. Morishita, L. Nasdala, J. Fiebig and 20 more. 2004

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This paper reports the results from a second characterisation of the 91500 zircon, including data from electron probe microanalysis, laser ablation inductively coupled plasma‐mass spectrometry (LA‐ICP‐MS), secondary ion mass spectrometry (SIMS) and laser fluorination analyses. The focus of this initiative was to establish the suitability of this large single zircon crystal for calibrating in situ analyses of the rare earth elements and oxygen isotopes, as well as to provide working values for key geochemical systems. In addition to extensive testing of the chemical and structural homogeneity of this sample, the occurrence of banding in 91500 in both backscattered electron and cathodoluminescence images is described in detail. Blind intercomparison data reported by both LA‐ICP‐MS and SIMS laboratories indicate that only small systematic differences exist between the data sets provided by these two techniques. Furthermore, the use of NIST SRM 610 glass as the calibrant for SIMS analyses was found to introduce little or no systematic error into the results for zircon. Based on both laser fluorination and SIMS data, zircon 91500 seems to be very well suited for calibrating in situ oxygen isotopic analyses.

Subfields: Artificial Intelligence, Atmospheric Science, Geophysics

View Paper: https://www.semanticscholar.org/paper/407463ca01bebbeec1627408d225cf71041167e0

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Citations in the corpus

Penglai Zircon Megacrysts: A Potential New Working Reference Material for Microbeam Determination of Hf–O Isotopes and U–Pb Age (2010, methodology): “Because the measured 176Yb ⁄ 177Hf ratio values were relatively high (> 0.001), independent mass bias factors for Hf and Yb in the isobaric interference correction were used to produce more reliable Hf isotopic data (Woodhead et al. 2004, Iizuka and Hirata 2005, Wu et al. 2006).”
U‐Pb Zircon Geochronology with an Integrated LA‐ICP‐MS Microanalytical Workstation: Achievements in Precision and Accuracy (2010, neutral): “91500 The 91500 zircon is one of the most widely used reference materials for U-Pb dating, although it is no t par t i cu la r l y compos i t iona l l y homogeneous (Wiedenbeck et al. 1995, 2004).”
A Preliminary Appraisal of Seven Natural Zircon Reference Materials for In Situ Hf Isotope Determination (2005, methodology): “For 91500, BR266 and Temora-2, accuracy values have changed marginally from Woodhead et al. (2004) due to the increased size of the current data set.”
Ti-in-zircon thermometry: applications and limitations (2008, background): “…(Page et al. 2007a), Early Archean detrital zircons (32) from the Jack Hills metaconglomerate (Wilde et al. 2001; Peck et al. 2001; Cavosie et al. 2004, 2005b, 2006, 2007), and zircon reference materials (3) (CZ3: Pidgeon et al. 1994; 91500: Wiedenbeck et al. 2004; KIM-5: Valley et al. 1998).”
VizualAge: A Novel Approach to Laser Ablation ICP‐MS U‐Pb Geochronology Data Reduction (2012, methodology): “The Ple sovice, Temora-2 and Long Lake Batholith examples were calibrated with the 91500 zircon reference material (Wiedenbeck et al. 1995, 2004), while the Penglai example used the Temora-2 zircon (Black et al. 2003).”