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Article: Research in the area of geophysics reported from University of British Columbia.
- Article from:
- Physics Week
- Article date:
- September 15, 2009
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"Ocean island basalts from Hawaii and Kerguelen were analyzed for their Pb isotopic compositions to assess the effect of acid leaching and matrix elimination by Pb anion exchange columns on reproducibility and accuracy. Unleached samples consistently yield Pb isotopic ratios that reflect the incorporation of foreign material," researchers in Vancouver, Canada report.
"Leaching removes up to 70-80% of the total Pb content of the samples with corresponding weight losses between 35 and 60%. The older and more altered Kerguelen basalts show better external reproducibility than the Hawaiian basalts, which appears to be due to the presence in the Hawaiian samples of ...