New opportunities in trace elements structural characterization: high-energy X-ray absorption near-edge structure spectroscopy.
J Synchrotron Radiat
; 9(Pt 2): 86-9, 2002 Mar 01.
Article
em En
| MEDLINE
| ID: mdl-11872928
ABSTRACT
Garnets in lower crustal mafic and ultramafic rocks usually contain rare-earth elements (REE) in trace concentrations. Direct characterization of REE at trace levels in natural garnets is not available in the literature because of the difficulty of obtaining structural information by means of conventional diffraction methods. Here, the characterization of Nd at trace levels (176-1029 p.p.m.) in a set of natural garnets performed by means of Nd K-edge X-ray absorption near-edge structure spectroscopy is presented, showing the capability of high-energy XANES for REE in trace structural determinations.
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MEDLINE
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En
Ano de publicação:
2002
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Article