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Goethite Morphologies of Some Soils in South of Central ChinaEnglish Full Text

LIU FAN; XU FENG-LIN; LI XUE-YUAN and HE HUI(Huazhong Agricultural Ursiversity, Wuhan 430070 China)

Abstract: The morphologies of goethites in latosol, red soils, yellow-brown soil and the paddy soils developed from red soils were studied in comparison with the morphology of synthetic goethite by means of the X-ray distraction, transmission electron microscopy and energy dispersive X-ray analysis. The synthetic goethite displayed acicular particles elongated in the c-direction. The goethites in the latosol, red soils and yellowbrown soil were platy particles stretched in two directions or isodimensional particles, and those in the paddy soils from red soils were acicular, short columnar, platy or isodimensional particles. Various morphologies of the goethites probably suggested their different dominant crystal faces, surface charge distribution and surface adsorption characteristics.
  • Series:

    (D) Agriculture

  • Subject:

    Fundamental Science of Agriculture; Agronomy

  • Classification Code:

    S153.6

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