Sulphate Efflorescent Minerals from the El Jaroso Ravine, Sierra Almagrera, Spain—A Scanning Electron Microscopic and Infrared Spectroscopic Study:
作者： Ray L. Frost , Daria L. Wain , B. Jagannadha Reddy , Wayde Martens , Jesus Martinez-Frias
DOI: 10.1255/JNIRS.612
关键词: Ferrous 、 Jarosite 、 Infrared 、 Scanning electron microscope 、 Analytical chemistry 、 Spectral line 、 Near-infrared spectroscopy 、 Halotrichite 、 Chemistry 、 Mineralogy 、 Hydrogen bond
摘要: (1199 nm) reveals the presence of ferrous iron in jarosite which is unusual for minerals. This can be caused by ferric reduction thermophilic iron-oxidising bacteria. Mid IR spectra showed characteristic OH stretching bands jarosites and effl orescent mixtures. The position water vibrations at 2900 cm -1 lower shows strong hydrogen bonding as also evidenced bending modes around 1682 .
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