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Articles, 2 records found
Articles 2 records found  
1.
9 p, 1.2 MB Mixed-valent Fe films ('schwimmeisen') on the surface of reduced ephemeral pools / Grathoff, Georg H. (Portland State University. Department of Geology) ; Baham, John E. (Oregon State University. Department of Crop and Soil Science) ; Easterly, Heather R. (Portland State University. Department of Geology) ; Gassman, Paul (Pacific Northwest National Laboratory (PNNL)) ; Hugo, Richard C. (Portland State University. Department of Geology)
Floating, mixed-valent Fe films have been observed worldwide in wetlands, ferrous iron-rich seeps, and in seasonally reduced soils, but are usually misidentified as oil or biofilms. There has been little characterization or explanation of their formation. [...]
2007 - 10.1346/CCMN.2007.0550610
Clays and Clay Minerals, Vol. 55, Núm. 6 (2007) , p. 635-643  
2.
10 p, 516.6 KB Comparison of K-Ar ages of diagenetic illite-smectite to the age of a chemical remanent magnetization (CRM) : An example from the Isle of Skye, Scotland / Elliott, W. Crawford (Georgia State University. Department of Geology) ; Basu, Ankan (Virginia Polytechnic Institute and State University. Department of Geosciences) ; Wampler, J. Marion (Georgia Institute of Technology. School of Earth and Atmospheric Sciences) ; Elmore, R. Douglas (Oklahoma University. School of Geology and Geophysics) ; Grathoff, Georg H. (Portland State University. Department of Geology)
The clay fractions of Jurassic marls in the Great Estuarine Group in southern Isle of Skye are composed of mixed-layered illite-smectite (I-S) with large percentages (>85%) of illite layers, kaolinite, and generally smaller amounts of chlorite. [...]
2006 - 10.1346/CCMN.2006.0540303
Clays and Clay Minerals, Vol. 54, Núm. 3 (2006) , p. 314-323  

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