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| Detailed Reference Information |
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Weis, D., Kieffer, B., Maerschalk, C., Pretorius, W. and Barling, J. (2005). High-precision Pb-Sr-Nd-Hf isotopic characterization of USGS BHVO-1 and BHVO-2 reference materials. Geochemistry Geophysics Geosystems 6. doi: 10.1029/2004GC000852. issn: 1525-2027. |
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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. 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. |
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| BACKGROUND DATA FILES |
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Abstract |
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Abstract |
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Table 1 |
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Table 2 |
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Mcdonough & Chauvel Method |
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Leaching Procedures |
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Weis & Frey Method |
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Mass Spectrometry |
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Mass Spectrometry (continued) |
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Keywords
Geochemistry, Radiogenic isotope geochemistry, Geochemistry, Major and trace element geochemistry, Geochemistry, Instruments and techniques, MC-ICP-MS, USGS reference material, BHVO-1, BHVO-2, leaching, Pb isotopes |
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Journal
Geochemistry Geophysics Geosystems |
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Publisher
American Geophysical Union
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