Lattice location of trace elements within minerals and at their surfaces with x-ray standing waves
- Argonne National Lab., IL (United States)
- Northwestern Univ., Evanston, IL (United States)
The x-ray standing waves generated by dynamical Bragg diffraction were used to directly measure lattice locations of trace elements within and at the surface of a mineral single crystal. These high-precision measurements were made on natural Iceland spar calcite cleaved along the (10{bar 1}4) plane and reacted with a dilute aqueous lead solution. Within the bulk crystal, naturally occurring trace manganese was found within (10{bar 1}4) planes, consistent with its substitution for calcium. At the crystal surface, sorbed lead was found to be highly ordered and mostly within (10{bar 1}4) planes. This demonstrates a powerful application of synchrotron radiation in the earth and environmental sciences. 24 refs., 4 figs.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL
- DOE Contract Number:
- W-31109-ENG-38; AC02-76CH00016
- OSTI ID:
- 70312
- Journal Information:
- Science, Journal Name: Science Journal Issue: 5178 Vol. 265; ISSN SCIEAS; ISSN 0036-8075
- Country of Publication:
- United States
- Language:
- English
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