High-precision Pb-Sr-Nd-Hf isotopic characterization of USGS BHVO-1 and BHVO-2 reference materials

Journal article

The recent development of multiple-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) and increasing use of the technique have created the need for well-characterized rock standards, especially for isotopic systems where no internal fractionation correction can be applied. This paper presents a careful leaching experiment on the U.S. Geological Survey (USGS) reference materials BHVO-1 and BHVO-2 (Hawaiian basalts) and documents the evidence for contamination of the rock powders during processing. This contamination accounts for the difference in Pb isotopic ratios of BHVO-1 and BHVO-2 as well as for their lack of homogeneity both in Pb isotopic compositions and in some trace element contents. Copyright 2005 by the American Geophysical Union.

Authors: Weis, D; Kieffer, B; Maerschalk, C; Pretorius, W; Barling, J

• Journal: Geochemistry, Geophysics, Geosystems
• Volume: 6
• Issue: 2
• Pages: n/a-n/a
• Publication date: 2005-02-01
• DOI: 10.1029/2004GC000852
• EISSN: 1525-2027
• ISSN: 1525-2027
• Language: English
• Keywords: BHVO-1; Pb isotopes; USGS reference material; MC-ICP-MS; BHVO-2; Leaching