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Mossbauer Spectroscopic Evidence for Citrate-Bicarbonate-Dithionite Extraction of Maghemite from Soils
Mossbauer spectroscopy Soil genesis
2011/12/1
Abstract: In a previous paper, we used powder X-ray diffraction and changes in magnetic susceptibility to argue the importance of pedogenic maghemite to soils and the efficacy of the chemical extracta...
57Fe Mossbauer Spectroscopic Study of Structural Changes During Dehydration of Nontronite: Effect of Different Exchangeable Cations
Mossbauer Dehydration Nontronite Cation migration Tetrahedral site
2012/1/4
Dehydration-induced migration of different exchangeable cations toward the layers of nontronite has been studied by M鰏sbauer spectroscopy. As interlayer water is removed exchangeable cations migrate t...
Mossbauer Spectroscopic Identification of Iron Oxides in Nontronite from Hohen Hagen, Federal Republic of Germany
Goethite Iron Maghemite Magnetic properties Mossbauer spectroscopy Nontronite
2012/1/9
Iron impurities in the Hohen Hagen nontronite (NG-1) were identified as maghemite and goethite. The phase identified as maghemite was magnetically ordered at both room temperature and 87 K, with hyper...
Mossbauer Spectroscopic Study of the Iron Mineralogy of Post-Glacial Marine Clays
Hematite Iron Magnetite Mossbauer spectroscopy Quick clay Smectite Yield strength
2012/1/12
Three post-glacial marine clays from eastern Canada and one marine clay from Japan have been studied by M鰏sbauer spectroscopy to ascertain their iron mineralogy. Small amounts of hematite (in two samp...
Electron-microscopic and Mossbauer Spectroscopic Studies of Iron-Stained Kaolinite Minerals
Electron-microscopic Mossbauer Spectroscopic Iron-Stained Kaolinite Minerals
2012/2/15
An electron-microscopic and M鰏sbauer spectroscopic study of a range of kaolinites has revealed three distinct types of iron contamination within these minerals: a) Ferric ion may substitute for alumin...