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Clays and Clay Minerals

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1.
10 p, 1.7 MB Stacking disorder in a sedimentary kaolinite / Kogure, Toshihiro (The University of Tokyo. Department of Earth and Planetary Science) ; Elzea-Kogel, Jessica (IMERYS) ; Johnston, Cliff T. (Purdue University. Crop, Soil and Environmental Sciences) ; Bish, David L. (Indiana University. Department of Geological Sciences)
Although structural disorder in kaolinite has been investigated extensively, it is still not understood properly. To investigate the problem, a kaolinite specimen of sedimentary origin from Capim, Brazil, was examined, mainly by transmission electron microscopy (TEM). [...]
2010 - 10.1346/CCMN.2010.0580106
Clays and Clay Minerals, Vol. 58, Núm. 1 (2010) , p. 62-71  
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2.
8 p, 724.0 KB Bacteria-clay interaction : Structural changes in smectite induced during biofilm formation / Alimova, Alexandra (The City College of New York. Institute for Ultrafast Spectroscopy and Lasers) ; Katz, A. (The City College of New York. Institute for Ultrafast Spectroscopy and Lasers) ; Steiner, Nicholas (The City College of New York. Department of Earth and Atmospheric Sciences) ; Rudolph, Elizabeth (The City College of New York. Department of Earth and Atmospheric Sciences) ; Wei, Hui (The City College of New York. Sophie Davis School of Biomedical Education) ; Steiner, Jeffrey C. (The City College of New York. Department of Earth and Atmospheric Sciences) ; Gottlieb, Paul (The City College of New York. Sophie Davis School of Biomedical Education)
Bacteria play an important role in determining the properties and behavior of clay minerals in natural environments and such interactions have great potential for creating stable biofilms and carbon storage sites in soils, but our knowledge of these interactions are far from complete. [...]
2009 - 10.1346/CCMN.2009.0570207
Clays and Clay Minerals, Vol. 57, Núm. 2 (2009) , p. 205-212  
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3.
7 p, 569.3 KB Influence of Mn (III) availability on the phase transformation from layered buserite to tunnel-structured todorokite / Cui, Haojie (Huazhong Agricultural University. Key Laboratory of Subtropical Agricultural Resources and Environment) ; Liu, Xiangwen (China University of Geosciences) ; Tan, Wenfeng (Key Huazhong Agricultural University. Laboratory of Subtropical Agricultural Resources and Environment) ; Feng, Xionghan (Huazhong Agricultural University. Key Laboratory of Subtropical Agricultural Resources and Environment) ; Liu, Fan (Huazhong Agricultural University. Key Laboratory of Subtropical Agricultural Resources and Environment) ; Ruan, Huada Daniel (Beijing Normal University-Hong Kong Baptist University)
Todorokite is a common Mn oxide mineral in terrestrial and ocean-floor environments, and it is commonly synthesized from layered Na-buserite. Pyrophosphate, which is known to form strong complexes with Mn(III) at a pH range of 1-8, was added to a suspension of Na-buserite in order to sequester the available Mn(III) in Na-buserite. [...]
2008 - 10.1346/CCMN.2008.0560401
Clays and Clay Minerals, Vol. 56, Núm. 4 (2008) , p. 397-403  
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4.
12 p, 979.7 KB Preferred orientation of mineral grains in sample mounts for quantitative XRD measurements : How random are powder samples? / Kleeberg, Reinhard (Institute of Mineralogy. TU Bergakademie Freiberg) ; Monecke, Thomas (University of Ottawa. Department of Earth Sciences) ; Hillier, Stephen (Macaulay Institute)
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. [...]
2008 - 10.1346/CCMN.2008.0560402
Clays and Clay Minerals, Vol. 56, Núm. 4 (2008) , p. 404-415  
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5.
13 p, 432.9 KB Role of microbial Fe(III) reduction and solution chemistry in aggregation and settling of suspended particles in the Mississippi River Delta plain, Louisiana, USA / Jaisi, Deb P. (Yale University. Department of Geology and Geophysics) ; Ji, Shanshan (Miami University. Department of Geology) ; Dong, Hailiang (Miami University. Department of Geology) ; Blake, Ruth E. (Yale University. Department of Geology and Geophysics) ; Eberl, Dennis D. (United States Geological Survey) ; Kim, Jinwook (Yonsei University. Department of Earth System Sciences)
River-dominated delta areas are primary sites of active biogeochemical cycling, with productivity enhanced by terrestrial inputs of nutrients. Particle aggregation in these areas primarily controls the deposition of suspended particles, yet factors that control particle aggregation and resulting sedimentation in these environments are poorly understood. [...]
2008 - 10.1346/CCMN.2008.0560403
Clays and Clay Minerals, Vol. 56, Núm. 4 (2008) , p. 416-428  
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6.
8 p, 827.3 KB Kaolinite formation from palygorskite and sepiolite in rhizosphere soils / Khademi, H. (Isfahan University of Technology. Department of Soil Science. College of Agriculture) ; Arocena, J. M. (University of Northern British Columbia. Department of Soil and Environmental Sciences)
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, information on the transformation of these clays in the root zone (or rhizosphere) of agricultural crops is limited. [...]
2008 - 10.1346/CCMN.2008.0560404
Clays and Clay Minerals, Vol. 56, Núm. 4 (2008) , p. 429-436  
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7.
16 p, 823.2 KB Chemical and mineralogical characteristics of French green clays used for healing / Williams, Lynda B. (Arizona State University. School of Earth and Space Exploration) ; Haydel, Shelley E. (Arizona State University. The Biodesign Institute Center for Infectious Diseases and Vaccinology) ; Giese, Rossman F. (The State University of New York. Department of Geology) ; Eberl, Dennis D. (United States Geological Survey)
The worldwide emergence of infectious diseases, together with the increasing incidence of antibiotic-resistant bacteria, elevate the need to properly detect, prevent, and effectively treat these infections. [...]
2008 - 10.1346/CCMN.2008.0560405
Clays and Clay Minerals, Vol. 56, Núm. 4 (2008) , p. 437-452  
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8.
8 p, 443.7 KB The trapping of B from water by exfoliated and functionalized vermiculite / Kehal, Mohamed (Université Mentouri. Département de Chimie) ; Reinert, Laurence (Université de Savoie. Laboratoire de Chimie Moléculaire et Environnement) ; Maurin, David (Université Montpellier II. Laboratoire de colloïdes verres et nanomatériaux) ; Bantignies, Jean-Louis (Université Montpellier II. Laboratoire de colloïdes verres et nanomatériaux) ; Ohashi, Fumihiko (Materials National Institute of Advanced Industial Science and Technology. Research Institute for Sustainable Development) ; Mennour, Ammar (Université Mentouri. Département de Chimie) ; Duclaux, Laurent (Université de Savoie. Polytech'Savoie)
Micron-grade natural vermiculite was modified by several physical and chemical treatments in order to increase the adsorption capacity of this material for B. A thermal exfoliation (T = 600°C) of pristine material, a chemical exfoliation through reaction with hydrogen peroxide (HO 35%), or grafting of a specific B complexant (i. [...]
2008 - 10.1346/CCMN.2008.0560406
Clays and Clay Minerals, Vol. 56, Núm. 4 (2008) , p. 453-460  
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9.
9 p, 558.5 KB XRD, FTIR, and thermal analysis of bauxite ore-processing waste (red mud) exchanged with heavy metals / Castaldi, Paola (University of Sassari. Dipartimento di Scienze Ambientali Agrarie e Biotecnologie Agro-Alimentari) ; Silvetti, Margherita (University of Sassari. Dipartimento di Scienze Ambientali Agrarie e Biotecnologie Agro-Alimentari) ; Santona, Laura (University of Sassari. Dipartimento di Scienze Ambientali Agrarie e Biotecnologie Agro-Alimentari) ; Enzo, Stefano (Dipartimento di Chimica. University of Sassari) ; Melis, Pietro (University of Sassari. Dipartimento di Scienze Ambientali Agrarie e Biotecnologie Agro-Alimentari)
The present work shows the results of X-ray diffraction (XRD), Fourier transform infrared (FTIR), and thermal analysis of untreated (RM) and acid-treated red mud (RM), a bauxite ore-processing waste, exchanged with Pb, Cd, and Zn cations. [...]
2008 - 10.1346/CCMN.2008.0560407
Clays and Clay Minerals, Vol. 56, Núm. 4 (2008) , p. 461-469  
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10.
16 p, 1.0 MB Low-temperature FTIR study of kaolin-group minerals / Johnston, Cliff T. (Purdue University. Department of Crop Soil and Environmental Sciences) ; Kogel, Jessica E. (IMERYS) ; Bish, David L. (Indiana University. Department of Geological Sciences) ; Kogure, Toshihiro (The University of Tokyo. Department of Earth and Planetary Science) ; Murray, Haydn H. (Indiana University. Department of Geological Sciences)
Low-temperature FTIR spectroscopy was used to characterize the v(OH) region of kaolin- group minerals including well ordered to poorly ordered kaolins from Georgia, Brazil, and England, along with samples of discrete dickite and nacrite. [...]
2008 - 10.1346/CCMN.2008.0560408
Clays and Clay Minerals, Vol. 56, Núm. 4 (2008) , p. 470-485  
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