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Abstract. Nanocrystalline ferrihydrite (bulk formula 5Fe2O39H2O) synthesized by hydrolysis of Fe(III) nitrate at 348K was investigated by neutron diffraction at 5, 293 and 323K. The structure is refined as a sum of a defect-free phase (space group P 1c) and a defective phase (space group P3) based on earlier discussed models from X-ray diffraction results on a six-line ferrihydrite. The...
Abstract. The texture of a mylonitic gneiss sample from a major shear zone in the Alps was studied using the texture diffractometer SV7-b at the Forschungszentrum Jlich. Pole figure data processing yielded complete textures for several constituent mineral phases (quartz, chlorite, mica). In combination with orientation analysis of grain boundaries, this allowed us to separate two successive stages...
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