Open AccessMagnesium K ‐edge XANES spectroscopy of geological standards
Author(s) -
Yoshimura Toshihiro,
Tamenori Yusuke,
Iwasaki Nozomu,
Hasegawa Hiroshi,
Suzuki Atsushi,
Kawahata Hodaka
Publication year - 2013
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049513016099
Subject(s) - xanes , silicate , carbonate , silicate minerals , fractionation , magnesium , carbonate minerals , chemistry , spectroscopy , spectral line , mineralogy , absorption (acoustics) , geology , geochemistry , materials science , organic chemistry , physics , quantum mechanics , astronomy , composite material
Magnesium K ‐edge X‐ray absorption near‐edge structure (XANES) spectra have been investigated to develop a systematic understanding of a suite of Mg‐bearing geological materials such as silicate and carbonate minerals, sediments, rocks and chemical reagents. For the model compounds the Mg XANES was found to vary widely between compounds and to provide a fingerprint for the form of Mg involved in geologic materials. The energy positions and resonance features obtained from these spectra can be used to specify the dominant molecular host site of Mg, thus shedding light on Mg partitioning and isotope fractionation in geologic materials and providing a valuable complement to existing knowledge of Mg geochemistry.