Resultados de búsqueda - "gibbsite"

Mineralogical properties of two profiles of volcanic ash soil from Costa Rica por Andriesse, J.P., Muller, A.

“…The fine fractions of the Irola profile consist mainly of allophane, while only the A12 profile contains an appreciable amount of gibbsite. The Victoria profile also contains allophane, but gibbsite is an important component, and its content increases with depth. …”
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Mapping bauxite indices using Landsat ETM+ imageries constrained with environmental factors in Foumban area (West Cameroon) por Tematio, P., Songmene, S.M., Leumbe, O.L., Nouazi, M.M., Yemefack, Martin, Fouateu, R.Y.

“…Mineralogical studies showed that the Foumban bauxites exhibit 78–86% of gibbsite, 7–22% of goethite and less than 7% of kaolinite. …”
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Differentiated Neogene bauxitization of volcanic rocks (western Cameroon): morpho-geological constraints on chemical erosion por Momo, M.N., Beauvais, A., Tematio, P., Yemefack, Martin

“…Conversion of parent rocks to kaolinite and goethite rich saprolites evolved to Al-Fe rich bauxites, mostly composed of gibbsite and iron oxy-hydroxides (goethite and hematite). …”
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Baseline soil characteristics of a humid tropical silvopastoral system and changes in selected soil properties por Cooperband, L.R, Logan, T.J

“…The soil's mineralogy, dominated by kaolinite, gibbsite and irons oxides, is consistent with the oxic-andic nature exhibited by both chemical and physical properties. …”
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