Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-24T15:56:31.775Z Has data issue: false hasContentIssue false
  • English
  • Français

Combined Major and Trace Element LA-ICP-MS Analysis of Compositional Variations in Simple Solid Solutions through Cross Correlation with an EPMA-Characterized Working Standard

Published online by Cambridge University Press:  30 July 2012

Georg F. Zellmer ,
Peter Dulski  and
Yoshiyuki Iizuka
Georg F. Zellmer*
Affiliation:
Institute of Earth Sciences, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan Lamont-Doherty Earth Observatory of Columbia University, 61 Route 9W, Palisades, New York, NY 10964, USA
Peter Dulski
Affiliation:
Helmholtz Centre Potsdam, GFZ German Research Centre for Geosciences, Telegrafenberg, 14473 Potsdam, Germany
Yoshiyuki Iizuka
Affiliation:
Institute of Earth Sciences, Academia Sinica, 128 Academia Road, Section 2, Nankang, Taipei 11529, Taiwan
*
Corresponding author. E-mail: [email protected]
Get access

Abstract

Determining correlated major and trace element zoning profiles is an important goal in modern microanalysis and is critical to some geospeedometric applications. We show that a precise determination of relative variations in major element compositions of simple solid solutions is possible by LA-ICPMS, and that low accuracy (analytical bias) can be corrected for through cross correlation with electron problem microanalyzer (EPMA)-characterized working standards. Further, the relative uncertainties on binary or quasibinary solid solution endmember proportions are always lower than the relative uncertainties on the ratio of the principle substituting elements by at least a factor of 2. In calcic plagioclase, for example, the relative uncertainty on XAn is a factor of (1 − XAn) smaller than the relative uncertainty on Ca/Na. Using a well-characterized, concentrically zoned bytownite crystal as an example, we compare reproducibilities of FE-EPMA and W-EPMA analyses with 2 μm beam diameter and laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) with 16 μm beam diameter. While the accuracy of LA-ICP-MS analyses is low (analytical bias), the precision of LA-ICP-MS analyses is slightly higher than that of FE-EPMA data and comparable to that of the W-EPMA data. EPMA-corrected LA-ICP-MS data can thus be used to characterize major oxide compositional variations and potential covariations with trace elements within individual crystals.

Keywords

W-EPMAFE-EPMALA-ICP-MSuncertaintiesmajor oxide analysis
Type
Materials Applications
Information
Microscopy and Microanalysis , Volume 18 , Issue 4 , August 2012 , pp. 852 - 859
Copyright
Copyright © Microscopy Society of America 2012

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Bindeman, I.N., Davis, A.M. & Drake, M.J. (1998). Ion microprobe study of plagioclase-basalt partition experiments at natural concentration levels of trace elements. Geochim Cosmochim Acta 62(7), 1175–1193.CrossRefGoogle Scholar
Blundy, J.D. & Wood, B.J. (1991). Crystal-chemical controls on the partitioning of Sr and Ba between plagioclase feldspar, silicate melts, and hydrothermal solutions. Geochim Cosmochim Acta 55, 193–209.Google Scholar
Cherniak, D.J. (2002). Ba diffusion in feldspar. Geochim Cosmochim Acta 66, 1641–1650.Google Scholar
Cherniak, D.J. & Watson, E.B. (1994). A study of strontium diffusion in plagioclase using Rutherford backscattering spectroscopy. Geochim Cosmochim Acta 58(23), 5179–5190.Google Scholar
Costa, F. & Dungan, M. (2005). Short time scales of magmatic assimilation from diffusion modeling of multiple elements in olivine. Geology 33, 837–840.Google Scholar
Giletti, B.J. & Casserly, J.E.D. (1994). Strontium diffusion kinetics in plagioclase feldspars. Geochim Cosmochim Acta 58(18), 3785–3793.CrossRefGoogle Scholar
Guillong, M., Hametner, K., Reusser, E., Wilson, S.A. & Günther, D. (2005). Preliminary characterisation of new glass reference materials (GSA-1G, GSC-1G, GSD-1G and GSE-1G) by laser ablation-inductively coupled plasma-mass spectrometry using 193 nm, 213 nm and 266 nm wavelengths. Geostand Geoanal Res 29, 315–331.CrossRefGoogle Scholar
Humayun, M., Davis, F.A. & Hirschmann, M.M. (2010). Major element analysis of natural silicates by laser ablation ICP-MS. J Analyt At Spectrom 25, 998–1005.Google Scholar
Jochum, K.P. & Nehring, F. (2006). NIST 610: GeoReM preferred values (11/2006), GeoReM. Available at: http://georem.mpch-mainz.gwdg.de.Google Scholar
Liu, Y., Hu, Z., Gao, S., Günther, D., Xu, J., Gao, C. & Chen, H. (2008). In situ analysis of major and trace elements of anhydrous minerals by LA-ICP-MS without applying an internal standard. Chem Geol 257, 34–43.CrossRefGoogle Scholar
Longerich, H.P., Jackson, S.E. & Günther, D. (1996). Laser ablation-inductively coupled plasma-mass spectrometric transient signal data acquisition and analyte concentration calculation. J Analyt At Spectrom 11, 899–904.Google Scholar
Morgan, D.J. & Blake, S. (2006). Magmatic residence times of zoned phenocrysts: Introduction and application of the binary element diffusion modelling (BEDM) technique. Contrib Mineral Petrol 151, 58–70.Google Scholar
Stakes, D.S., Perfit, M.R., Tivey, M.A., Caress, D.W., Ramires, T.M. & Maher, N. (2006). The Cleft revealed: Geologic, magnetic, and morphologic evidence for construction of upper oceanic crust along the southern Juan de Fuca Ridge. Geochem Geophys Geosyst 7(4), Q04003. Google Scholar
van Achterbergh, E., Ryan, C.G., Jackson, S.E. & Griffin, W.L. (2001). Data reduction software for LA-ICP-MS: Appendix. In Laser Ablation-ICP-Mass Spectrometry in the Earth Sciences: Principles and Applications. Mineralogical Association of Canada Short Course Series, Sylvester, P.J. (Ed.), pp. 239–243. Québec, Canada: The Mineralogical Association of Canada.Google Scholar
Zellmer, G.F., Blake, S., Vance, D., Hawkesworth, C. & Turner, S. (1999). Plagioclase residence times at two island arc volcanoes (Kameni islands, Santorini, and Soufriere, St. Vincent) determined by Sr diffusion systematics. Contrib Mineral Petrol 136(4), 345–357.CrossRefGoogle Scholar
Zellmer, G.F., Rubin, K.H., Dulski, P., Iizuka, Y., Goldstein, S.L. & Perfit, M.R. (2011). Crystal growth during dike injection of MOR basaltic melts: Evidence from preservation of local Sr disequilibria in plagioclase. Contrib Mineral Petrol 161, 153–173.Google Scholar
Zellmer, G.F., Sparks, R.S.J., Hawkesworth, C.J. & Wiedenbeck, M. (2003). Magma emplacement and remobilization timescales beneath Montserrat: Insights from Sr and Ba zonation in plagioclase phenocrysts. J Petrol 44, 1413–1431.Google Scholar
Supplementary material: File

Zellmer Supplementary Material

Tables

Download Zellmer Supplementary Material(File)
File 138.2 KB