搜索结果: 1-6 共查到“地质学 Iron oxide”相关记录6条 . 查询时间(0.386 秒)
Iron-Oxide Mineralogy of a Mollisol from Argentina: A Study by Selective-Dissolution Techniques, X-Ray Diffraction, and Mossbauer Spectroscopy
Ammonium-Oxalate Dissolution Treatment Chemical Analysis Dithionite-Citrate-Bicarbonate Dissolution Treatment Dithionite-Ethylenediaminetetraacetic Acid Dissolution Treatment
2011/12/6
Abstract: Selective-dissolution techniques by ammonium oxalate (OX), dithionite-citrate-bicarbonate (DCB), and dithionite-ethylenediaminetetraacetic acid (D-EDTA), and X-ray diffraction and M鰏sbauer s...
Influence of Climate on the Iron Oxide Mineralogy of Terra Rossa
Goethite Hematite Pedoclimate Terra rossa XRD
2011/11/30
Abstract: Terra rossa samples were taken from the B horizons of soil profiles and from cracks within limestone in Italy. The average annual temperature (AAT) of the sites ranged from 8.4 to 20.3°C and...
Influence of Fe(II) on the Formation of the Spinel Iron Oxide in Alkaline Medium
Dissolution Ferrihydrite Maghemite Magnetite Mossbauer spectroscopy
2011/12/31
Fe(II) and Fe(III) in various proportions were coprecipitated by NH3 at pH ≈ 11. The Fe(II)/Fe(III) ratio (x) was varied from 0.10 to 0.50. After stabilization by aging at pH ≃ 8 in anaerobic co...
Iron Oxide-Clay Mineral Association in Brazilian Oxisols: A Magnetic Separation Study
Brazil Goethite Hematite Magnetic separation Oxisols
2011/12/30
Selected Brazilian Oxisols were sampled and submitted to high-gradient magnetic separation (HGMS) to study the iron oxide-clay mineral associations. The soils, derived from four different parent mater...
Particle Interaction and Rheology of Illite-Iron Oxide Complexes
Bingham yield stress Morphology Illite Iron oxide Particle interaction Zeta potential
2011/12/31
The Bingham yield stress for suspensions of illite-iron oxide complexes is examined as a function of pH and iron oxide content. Addition of iron oxides to illite increased the yield stress over a pH r...
Effect of Saturating Cation, pH, and Aluminum and Iron Oxide on the Flocculation of Kaolinite and Montmorillonite
Aggregation Aluminum oxide Critical coagulation concentration Dispersion Flocculation Iron oxide Kaolinite Montmorillonite
2012/1/11
The effect of pH on the flocculation-dispersion behavior of noncrystalline aluminum and iron oxides, kaolinite, montmorillonite, and various mixtures of these materials was investigated. The clays wer...