Browsing Odum Library by Subject "X-ray Diffraction"

Browsing Odum Library by Subject "X-ray Diffraction"

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  • Clays and Clay Minerals, Vol. 54, No. 3, 390-401, 2006. 
    Bastida, Joaquin; Kojdecki, Marek A.; Pardo, Pablo; Amoros, Pedro (The Clay Minerals SocietyThe Clay Minerals Society, 2006)
    A reference sample of sepiolite and products of its comminution by vibrating dry-milling have been studied using X-ray diffraction (XRD) line-broadening analysis, complementary field emission scanning electron microscopy ...
  • Clays and Clay Minerals, Vol. 55, No. 6, 543–553, 2007. 
    Gionis, Vassilis; Kacandes, George H.; Kastritis, Ioannis D.; Chryssikos, Georgios D. (The Clay Minerals SocietyThe Clay Minerals Society, 2007)
    The octahedral composition of palygorskite in more than 300 samples from the Pefkaki deposit, W. Macedonia, Greece, has been studied by near-infrared (NIR) and X-ray diffraction (XRD), and evaluated according to the formula ...
  • Clays and Clay Minerals, Vol. 56, No. 2, 222–243, 2008. 
    Bongiolo, Everton Marques; Patrier-mas, Patricia; Mexias, Andre Sampaio; Beaufort, Daniel; Formoso, Milton Luiz Laquintini (The Clay Minerals SocietyThe Clay Minerals Society, 2008)
    TheAu-C u (>Pb, Zn, Ag) prospects of Lavras do Sul, southernmost Brazil, arehoste d in Neoproterozoic granitic and volcanogenic rocks. Mineralization occurs in structurally controlled N40ºW to E-W quartz veins; sericite ...
  • Clays and Clay Minerals, Vol. 56, No. 4, 404–415, 2008. 
    Kleeberg, Reinhard; Monecke, Thomas; Hillier, Stephen (The Clay Minerals SocietyThe Clay Minerals Society, 2008)
    The degree of preferred orientation of mineral grains in powder X-ray diffraction (XRD) samples prepared by standard techniques has been evaluated by means of a correction model implemented in the Rietveld program, BGMN. ...
  • Clays and Clay Minerals, Vol. 56, No. 4, 429–436, 2008. 
    Khademi, H.; Arocena, J. M. (The Clay Minerals SocietyThe Clay Minerals Society, 2008)
    Palygorskite and sepiolite are fibrous clays that occur mostly in agricultural soils of arid regions. Although many investigations have examined the environmental conditions for the formation and stability of these clays, ...
  • Clays and Clay Minerals, Vol. 56, No. 5, 511–519, 2008. 
    Onal, Muserref; Yilmaz, Hamza; Sarikaya, Yuksel (The Clay Minerals SocietyThe Clay Minerals Society, 2008)
    Various physicochemical characteristics of a sepiolite sample from the Eskisehir area, Turkey, were investigated to help in making predictions about possible uses of the material. The sample was examined by chemical analysis ...
  • Clays and Clay Minerals, Vol. 56, No. 6, 612–621, 2008. 
    Kogure, Toshihiro; Kameda, Jun; Drits, Victor A. (The Clay Mineral SocietyThe Clay Minerals Society, 2008)
    Stacking disorder in celadonite, a dioctahedral mica with Fe and Mg as major octahedral cations and which generally adopts the 1M stacking sequence, was investigated mainly by using transmission electron microscopy (TEM). ...
  • Clays and Clay Minerals, Vol. 57, No. 1, 25–34, 2009. 
    Pardo, Pablo; Bastida, Joaquin; Serrano, Francisco J.; Ibanez, Rafael; Kojdecki, Marek A. (The Clay Minerals SocietyThe Clay Minerals Society, 2009)
    Abstract-Due to the great technological importance of the microstructure of kaolinite, characterizing its evolution during dry milling of kaolin and analyzing the microstructural information obtained from different methods ...
  • Clays and Clay Minerals, Vol. 57, No. 1, 35–39, 2009. 
    Jaber, Maguy; Gaslain, Fabrice O. M.; Miehe -brendle, Jocelyne (The Clay Minerals SocietyThe Clay Minerals Society, 2009)
    Abstract—Organotalcs, in which organic moieties are covalently bonded to Si atoms belonging to the tetrahedral sheets, are usually prepared by a sol-gel process starting from ethanolic solution of Mg nitrate, organo-alcoxysilanes, ...
  • Clays and Clay Minerals, Vol. 57, No. 2, 150–160, 2009. 
    Morodome, Shoji; Kawamura, Katsuyuki (The Clay Minerals Society, 2009)
    Abstract—The effects of temperature on the swelling properties of smectites are important for a variety of different geological conditions, but studies on this topic have been rather limited. The purpose of this study was ...
  • Clays and Clay Minerals, Vol. 57, No. 3, 302–310, 2009. 
    Mantovani, Marco; Escudero, Alberto; Becerro, Ana Isabel (The Clay Minerals Society, 2009)
    Understanding the mechanisms for illitization of clay minerals has important applications in reconstructing geologic histories and determining the origins of physical and chemical characteristics of buried sediments. While ...
  • Clays and Clay Minerals, Vol. 57, No. 4, 476–485, 2009. 
    Lessovaia, S. N.; Polekhovsky, Yu. S. (The Clay Minerals Society, 2009)
    The influence of epigenetic (pre-pedogenetic) alteration of basic and ultrabasic rocks leading to the formation of phyllosilicate mineral associations is not well known. The purpose of this study was to gain further ...
  • Clays and Clay Minerals, Vol. 57, No. 4, 502–509, 2009. 
    Guegan, Regis; Gautier, Mathieu; Beny, Jean-Michel; Muller, Fabrice (The Clay Minerals Society, 2009)
    The transformation of clay minerals into organo-clays by surfactant intercalation is of great environmental and industrial importance because it causes the clay to attract hydrophobic contaminants and other non-polar organic ...
  • Clays and Clay Minerals, Vol. 58, No. 2, 188–204, 2010. 
    Trindade, Maria Jose; Dias, Maria Isabel; Coroado, Joao; Rocha, Fernando (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    In cases where the provenance of raw materials used in the manufacture of local archeological ceramics is of interest, a detailed study of thermal transformations of minerals may be useful. The purpose of this study was ...
  • Clays and Clay Minerals, Vol. 58, No. 3, 364–376, 2010. 
    Wahle, Michael W.; Bujnowski, Thomas J.; Guggenheim, Stephen; Kogure, Toshihiro (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    The objective of this paper is to describe the new serpentine group mineral, guidottiite, which is analogous to cronstedtite. Guidottiite has an ideal chemical composition of (Mn2Fe3+)(SiFe3+)O5(OH)4. The sample is from ...
  • Clays and Clay Minerals, Vol. 58, No. 4, 451–461, 2010. 
    Batista, Marcelo A.; Da Costa, Antonio C. S.; Bigham, Jerry M.; De Santan, Henrique; Zaia, Dimas A. M.; De Souza Junior, Ivan G. (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    Maghemite (g-Fe2O3) is a ferrimagnetic Fe oxide commonly found in tropical and subtropical soils, especially in the topsoil where it is usually a product of burning. Isomorphic substitution (IS) of the Fe in maghemite by ...
  • Clays and Clay Minerals, Vol. 58, No. 5, 707–716, 2010. 
    Kaufhold, Stephan; Ufer, Kristian; Kaufhold, Annette; Stucki, Joseph W.; Anastacio, Alexandre S.; Jahn, Reinhold; Dohrmann, Reiner (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    Allophane is a very fine-grained clay mineral which is especially common in Andosols. Its importance in soils derives from its large reactive surface area. Owing to its short-range order, allophane cannot be quantified by ...
  • Clays and Clay Minerals, Vol. 58, No. 6, 727–742, 2010. 
    Yuan, Hongji; Bish, David L. (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    NEWMOD#, developed by R.C. Reynolds, Jr., has been an important tool for evaluating quantitatively X-ray diffraction (XRD) patterns from interstratified clay minerals for more than 20 years. However, a significant drawback ...
  • 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 ...
  • Clays and Clay Minerals, Vol. 58, No. 6, 803–812, 2010. 
    Barre, Pierre; Velde, Bruce (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    The effect of plant species on soil-clay mineralogy has not been studied widely. In the present study, the clay mineralogy of top soils under Sequoia gigantia and grass regimes, maintained side by side for up to 150 y in ...

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