Trace element determination of single fluid inclusions in quartz by laser ablation ICP-MS

Tom E. McCandless, David J. Lajack, Joaquin Ruiz, A. Mohammad Ghazi

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

Single fluid inclusions in quartz from a Pb-Zn-Ag carbonate replacement deposit were selected for trace element determination by laser ablation ICP-MS. Spikes in element intensities were noted between first breached fluids versus subsequent analyses, suggesting that accurate element concentrations may not be determined in smaller fluid inclusions when only one analysis is obtained before the fluid is exhausted. Elemental concentrations in the fluid inclusions were determined by external standardisation using solutions sealed in microcapillary tubes. Standards and single natural inclusion analyses give repeatabilities (%RSD) of ∼20% for Rb and Sr. Rubidium and strontium concentrations range from 0.56-5.07 μg ml-1 and 1.12-27.4 μg ml-1, respectively, whereas Zn and Ag are below detection limits (< 10 ng ml -1). The results suggest that nearly all Zn and Ag are removed by the time hydrothermal fluids precipitate gangue minerals.

Original languageEnglish (US)
Pages (from-to)279-287
Number of pages9
JournalGeostandards Newsletter
Volume21
Issue number2
DOIs
StatePublished - Dec 1 1997

ASJC Scopus subject areas

  • Geology
  • Geochemistry and Petrology

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