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搜索结果: 1-15 共查到地质学 Goethite相关记录38条 . 查询时间(0.062 秒)
近日,中国地质大学资源学院和地质过程与矿产资源国家重点实验室李建威团队有关青藏高原东缘玉龙超大型斑岩铜矿床风化壳(U-Th)/He年代学的研究成果发表在地学领域重要综合期刊《Earth and Planetary Science Letters》上。该文第一作者为地质过程与矿产资源国家重点实验室邓晓东研究员,通讯作者为资源学院李建威教授。
ICE NUCLEATING PROPERTIES OF SOOT,KAOLINITE,&GOETHITE AT CONDITIONS RELEVANT FOR THE LOWER TROPOSPHERE.
Abstract: Competitive adsorption between glyphosate and phosphate on goethite was evaluated. The influence of background electrolyte on the adsorption of glyphosate and phosphate was also investigated...
Abstract: The effects of neodymium (Nd) on the transformation of ferrihydrite to iron oxides was studied. The possible isomorphous substitution of Nd3+ for Fe3+ in iron oxides was examined also. Nd wa...
Abstract: Mn-substituted goethite was synthesized and the interaction between arsenite (As(III)) and Mn-substituted goethite was investigated by both solution chemistry and X-ray adsorption near edge ...
Abstract: We investigated the crystallization of ferrihydrite prepared by hydrolysis of Fe(NO3)3 solutions containing phosphate. Crystallization was studied at different pH (3–9), temperatures (298, 3...
Abstract: Previous investigations of goethite revealed a substantial variation of color and diffuse reflectance spectra (DRS) in the extended visible range (350–2200 nm). To better understand the caus...
TheuptakeofCuandCdinaqueoussolutionbyinteractionwiththesurfacesofcare- fullysynthesized?nelysizedparticlesofgoethite,lepidocrocite,mackinawite,andpyrite wasmeasuredasafunctionofinitialmetalconcentra...
Abstract: Minerals in surface environments form in both turbulent and non-turbulent systems. This study compares the properties of Al goethite formed from ferrihydrite at 60 °C in 0.3 M KOH with and w...
WeusedX-raydiffraction(XRD),scanningforcemicroscopy(SFM),transmissionelec- tronmicroscopy(TEM),andcolortoinvestigatetheeffectofphosphateonthecrystalli- zationrate,nature,andmorphologyofironoxidespre...
Abstract: This study characterizes various chemical and mineralogical properties of goethite and jarosite from a mine drainage environment using chemical extraction techniques, X-ray diffractometry (X...
Abstract: The upper 15–20 m of a 200 m thick lateritic weathering profile on Precambrian itabirites of Capanema, Brazil, reveals a genetic pathway for the formation of hematitic and goethitic nodules ...
Abstract: In this paper atomic force microscopy-studies are reported suggesting the existence of vicinal faces on the (100) plane of artificially grown goethite. Goethite crystals are commonly regarde...
Abstract: The degree of flocculation of aqueous suspensions of microcrystalline goethite was measured in salts of monovalent, divalent and trivalent cations at pH 6.0?.5 over a range of ionic strength...
This work investigates unit cell dimensions, crystal size and specific surface area of aluminous goethite that was progressively dehydroxylated to form hematite. Goethite synthesized from the ferrous ...

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