Browsing by Author "Gilkes, Robert J."

Browsing by Author "Gilkes, Robert J."

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  • Clays and Clay Minerals, Vol. 54, No. 2, 165-175, 2006. 
    Perrier, Nicolas; Gilkes, Robert J.; Colin, Fabrice (The Clay Minerals SocietyThe Clay Minerals Society, 2006)
    Evidence for fire affecting the solubility of metals in Fe oxide-rich Oxisols of the Koniambo Massif of New Caledonia is presented. Acid-dissolution studies showed that Ni, Al and Cr are substituted for Fe in the structure ...
  • Clays and Clay Minerals, Vol. 54, No. 6, 721–736, 2006. 
    Simas, Felipe N. B.; Schaefer, Carlos Ernesto G. R.; Melo, Vander F.; Guerra, Marcelo B. B.; Saunders, Martin; Gilkes, Robert J. (The Clay Minerals SocietyThe Clay Minerals Society, 2006-11)
    Cryosols from Maritime Antarctica have been less studied than soils from continental areas of Antarctica. In this work X-ray diffraction, difference X-ray diffraction, differential thermal analysis, thermogravimetry, ...
  • Clays and Clay Minerals, Vol. 57, No. 6, 751–770, 2009. 
    Landers, Matthew; Gilkes, Robert J.; Wells, Martin A. (The Clay Minerals Society, 2009)
    Abstract—A method for extracting Ni and other metals from lateritic ores by means of shock heating has been investigated. Shock heating releases some of the metal from its goethitic host. Even though the transformation of ...
  • Clays and Clay Minerals, Vol. 58, No. 2, 247–262, 2010. 
    Chittamart, Natthapol; Suddhiprakarn, Anchalee; Kheoruenromne, Irb; Gilkes, Robert J. (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    The fertility of soils with respect to K+ and NH4 + is often difficult to measure, but is essential for achieving effective agronomic practices. This problem is especially important in the Vertisols of Thailand. The purpose ...
  • Clays and Clay Minerals, Vol. 58, No. 6, 783–791, 2010. 
    Murphy, David M. K.; Gilkes, Robert J. (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    Differentiating clay minerals that formed in a supergene environment during deep chemical weathering from those that formed during hydrothermal alteration at higher temperatures associated with a mineralizing event is ...