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X-ray diffraction and chemical analyses were performed on clay fractions separated from an acid brown soil (Dystrochrept) by means of size fractionations using high-gradient magnetic separation techni...
Abstract: The mineralogy of the clay fraction was studied for soils and saprolite on two Blue Ridge Front mountain slopes. The clay fraction contained the weathering products of primary minerals in th...
Abstract: The weathering products of primary biotite, chlorite, magnetite, and almandine in mica gneiss and schist in the North Carolina Blue Ridge Front were determined. Sand-size grains of biotite, ...
Ferrian Saponite in a Gabbro Saprolite at Mont Megantic, Quebec     Ferric iron  Genesis  Oxidation  Saponite  Saprolite  Weathering       font style='font-size:12px;'> 2012/1/9
Gabbroic saprolite at Mont Mégantic, Quebec, was studied in detail mineralogically to gain a better understanding of the origin of ferruginous smectite reported previously from these rocks. The parent...
Feldspar Weathering in Lateritic Saprolite     Feldspar  Gibbsite  Halloysite  Kaolinite  Noncrystalline material   Weathering       font style='font-size:12px;'> 2011/11/25
Abstract: Feldspars in granitic saprolite in southwestern Australia have altered to halloysite, kaolinite, and gibbsite with no evidence of noncrystalline material. The secondary minerals are commonly...
Empirical reaction progress diagrams showing the trends of major element oxide concentrations (in g/cm3) as functions of bulk density for a diabase saprolite reveal discontinuities in the trends of Al...
Imogolite and Allophane Formed in Saprolite of Basalt on Maui, Hawaii     Imogolite  Allophane  Saprolite  Basalt       font style='font-size:12px;'> 2012/2/20
Inorganic gel and allophane collected from basaltic saprolite on Maui, Hawaii, and studied by Patterson in 1964 were reexamined. The main constituent of the gel is imogolite, and gibbsite and allophan...
Clay Mineralogy of Andesite Saprolite     Clay Mineralogy  Andesite Saprolite       font style='font-size:12px;'> 2011/11/17
Clay mineral associations in saprolite of two andesites from the Cascade Range of northeastern California were determined. Sesquioxidic allophane with a high CEC delta value dominates the clay fractio...

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