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randomly interstratified illitevermiculite from weathering geol

  • Randomly interstratified illite–vermiculite from

    01/02/2014· These suggested that the broad 10–14 Å peak resulted from randomly interstratified illite–vermiculite clays together with discrete illite and also vermiculite. HRTEM observation showed that straight 10 Å illite layers were interstratified with 12 Å vermiculite layers, suggesting that transformation of illite to vermiculite involves an exchange of K + by hydrated cations associated with

  • Cited by: 28
  • Randomly interstratified illite-vermiculite from

    Mixed-layer illite-vermiculite (I/V) clays of the Xuancheng red earth were investigated using X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectrometer, and high-resolution transmission electron microscopy (HRTEM) methods. The XRD results indicated that the mixed layer I/V clays were characterized by the broad 10-14 Å peak with a maximum intensity at ∼ 12 Å in air-dried

  • Cited by: 28
  • Randomly interstratified illite–vermiculite from

    Randomly interstratified illite–vermiculite from weathering of illite in red earth sediments in Xuancheng, southeastern China. Author links open overlay panel Hanlie Hong a Gordon Jock Churchman b Ke Yin a Rongbiao Li

  • Cited by: 28
  • Randomly interstratified illite–vermiculite from

    Randomly interstratified illite–vermiculite from weathering of illite in red earth sediments in Xuancheng, southeastern China February 2014 Geoderma s 214–215:42–49Онлайн-запрос

  • (PDF) Randomly interstratified illite-vermiculite from

    Randomly interstratified illite-vermiculite from weathering of illite in red earth sediments in Xuancheng, southeastern ChinaОнлайн-запрос

  • Randomly interstratified illite-vermiculite from

    Randomly interstratified illite-vermiculite from weathering of illite in red earth sediments in Xuancheng, southeastern China By H. Hong, G. Churchman, K. Yin, R. Li and Z. Li No static citation data No static citation data CiteОнлайн-запрос

  • Randomly Interstratified Illitevermiculite From Weathering

    Randomly Interstratified Illitevermiculite From Weathering Geol. Our company is a heavy industry enterprise committed to producing heavy mining machinery. Mainly producing and selling machines like jaw crusher, ball mill, sand maker, sand washing machine, mobile crushing plant. Establishing a special research and development base and takingОнлайн-запрос

  • Chemical Weathering Controls | Processes Controlling the

    Smectite may contain small (<5%) amounts of randomly interstratified halloysite. Similarly, kaolinite commonly contains a small proportion of halloysite interlayers. A complex halloysitic phase shows evidence of interstratification with both smectite and kaolinite. Nonphyllosilicates found in the clay fraction include gibbsite, goethite, rare quartz, and perhaps cristobalite.Онлайн-запрос

  • mixed layer weathering safpaec

    The occurrence of mixedlayer clays was noticed in several New England soils; a particularly well developed mixedlayer sequence involving the weathering of randomly interstratified vermiculite and illite was intensively studied. Weathering of the interstratified system resulted in the formation of alumina in interlayer positions as evidenced by chemical and xray tests.Онлайн-запрос

  • An Investigation into the Physical and Chemical Properties

    Corresponding <2µm XRD patterns show an increase in the amount of clay minerals within the soil with the formation of gibbsite (3.58), kaolinite (4.83), and hydro-biotite (some variation of ~23.5 and 13) (randomly interstratified illite-vermiculite) as well as reiterating the disappearance of chlorite. Soil profiles are differentiated by one characteristic, depth; shallower soilОнлайн-запрос

  • (PDF) Interstratified Clay Minerals and Weathering

    The major types of interstratified clay minerals are reviewed with particular emphasis on those that are charcteristic of a weathering environment. It is concluded that these minerals form mainlyОнлайн-запрос

  • Chemical Weathering Controls | Processes Controlling the

    Smectite may contain small (<5%) amounts of randomly interstratified halloysite. Similarly, kaolinite commonly contains a small proportion of halloysite interlayers. A complex halloysitic phase shows evidence of interstratification with both smectite and kaolinite. Nonphyllosilicates found in the clay fraction include gibbsite, goethite, rare quartz, and perhaps cristobalite.Онлайн-запрос

  • Jil. 21, No.1 (Vol. 21, No.1) Jan-Feb 1995

    development of randomly interstratified illite-montmorillonite and kaolinite through leach­ ing of the illites. INTRODUCTION There is a lack of published literature on the clay minerals of weathering profiles over quartz-mica schist bedrock in Malaysia, except for Yeow (1975), Siti Zauyah (1986) and Raj (1993a; 1993b). Yeow (1975) studied two well drained profiles; one over a quartz-phengiteОнлайн-запрос

  • Significance of random illite-vermiculite mixed layers in

    01/09/2000· The sediments are characterized by the presence of random illite-vermiculite mixed layers (I-V) (up to 32% of the clay mineral assemblage). The I-V clays are much more abundant during interglacial periods than during glacial ones. They are attributed to detrital supply through erosion of high-latitude continental areas from which they are derived mainly from chemical weathering of micaceousОнлайн-запрос

  • Cesium-adsorption Behavior of Weathered Biotite from

    The degree of weathering (i.e. vermiculitization) of the samples increased in the following order: Domeki sample : Tozawa : Mankei : Yatsuzaku. A characteristic feature of the Domeki sample was distortion of the biotite layer. The Tozawa sample had an even greater degree of distortion of the biotite layer. In the Mankei sample, hydrobiotite and randomly interstratified biotite–vermiculiteОнлайн-запрос

  • Interstratified Clay Minerals | SpringerLink

    Abstract. Interstratification is a phenomenon that was first observed on studying clay minerals by X-ray diffraction. It was noted that the majority of them had basal reflections (001), which did not form aОнлайн-запрос

  • Jil. 19, No.3 (Vol. 19, No.3) May-Jun 1993 s.

    weathering. processes; disaggregation and disintergration ofmuscovites and sericites within the original bedrock material initially resulting in illite, followed by development of randomly interstratified illite-montmorillonite and kaolinite through leaching of the illites.Онлайн-запрос

  • An Investigation into the Physical and Chemical Properties

    Corresponding <2µm XRD patterns show an increase in the amount of clay minerals within the soil with the formation of gibbsite (3.58), kaolinite (4.83), and hydro-biotite (some variation of ~23.5 and 13) (randomly interstratified illite-vermiculite) as well as reiterating the disappearance of chlorite. Soil profiles are differentiated by one characteristic, depth; shallower soilОнлайн-запрос

  • REGULARLY INTERSTRATIFIED CHLORITE/VERMICULITE IN SOILS

    REGULARLY INTERSTRATIFIED CHLORITE/VERMICULITE IN SOILS OVER META-IGNEOUS MAFIC ROCKS IN MARYLAND 1 Key Words--Chlorite, Interstratification, Mixed layer, Soil, Vermiculite, Weathering. INTRODUCTION The random interstratification of chlorite and vermiculite layers in 2:1 phyllosilicates in geologic and pedologic materials is quite common. Regular interstratification isОнлайн-запрос

  • USGS OFR01-041: Mixed-layer clays U.S. Geological

    U. S. Geological Survey Open-File Report 01-041 A Laboratory Manual for X-Ray Powder Diffraction Mixed-Layer Clays Mixed-layer clay minerals are materials in which different kinds of clay layers alternate with each other. The mixing or interstratification in vertical stacking can be regular (ordered), segregated regular, or random (MacEwan and Ruiz-Amil, 1975; Reynolds, 1980; Wilson, 1987Онлайн-запрос

  • (PDF) Interstratified Clay Minerals and Weathering

    The major types of interstratified clay minerals are reviewed with particular emphasis on those that are charcteristic of a weathering environment. It is concluded that these minerals form mainlyОнлайн-запрос

  • Jil. 21, No.1 (Vol. 21, No.1) Jan-Feb 1995

    development of randomly interstratified illite-montmorillonite and kaolinite through leach­ ing of the illites. INTRODUCTION There is a lack of published literature on the clay minerals of weathering profiles over quartz-mica schist bedrock in Malaysia, except for Yeow (1975), Siti Zauyah (1986) and Raj (1993a; 1993b). Yeow (1975) studied two well drained profiles; one over a quartz-phengiteОнлайн-запрос

  • Intensity and duration of chemical weathering: An

    Smectite may contain small (<5%) amounts of randomly interstratified halloysite. Similarly, kaolinite commonly contains a small proportion of halloysite interlayers. A complex halloysitic phase shows evidence of interstratification with both smectite and kaolinite. Nonphyllosilicates found in the clay fraction include gibbsite, goethite, rare quartz, and perhaps cristobalite.Онлайн-запрос

  • Jil. 19, No.3 (Vol. 19, No.3) May-Jun 1993 s.

    weathering. processes; disaggregation and disintergration ofmuscovites and sericites within the original bedrock material initially resulting in illite, followed by development of randomly interstratified illite-montmorillonite and kaolinite through leaching of the illites.Онлайн-запрос

  • Clay Mineral Identification Flow Diagram U.S. Geological

    illite-vermiculite Randomly interstratified illite-chlorite No change Slight collapse Further collapse 060 near 1.50 Interstratified dioctahedral illite-vermiculite 060 near 1.54 Collapses to ~10 Collapses to 10 060 near 1.50 Expands to higher spacing Interstratified illite-montmorillonite Interstratified trioctahedral illite-montmorillonite >10-14 Air Dried ~29 Expands to 31-32 with rationalОнлайн-запрос

  • Origin of sedimentary bentonite deposits of Çankiri basin

    The origin of the randomly interstratified I/S in bentonites is difficult to assess through it may be suggested that if forms during the diagenesis. Figure 2: X-ray powder diffraciogram of randomly interstratified illite-montmorillonite . N. natural, G. glycolatcd, F. heated atОнлайн-запрос

  • WEATHERING OF CHLORITE: I. REACTIONS AND

    The weathering of chlorite in hydrothermally-altered basalt was studied with XRD, TEM and electron microprobe to determine the type and orientation of secondary minerals. Optical examination indicated chlorite assemblages to have altered in two distinct microsites: one microsite near micro-fissures traversing the regolith units, and the other away from the continuous passages. In this paperОнлайн-запрос

  • Interstratified Clays as Fundamental Particles

    hibit aninterparticle diffraction phenom-to those of randomly interstratified I-S enon. and C-S samples with 60 to 75 percent Whenthese materials are dried onto a smectite layers (4, 16) indicatingthat the flat surface from suspension, the layer entire layer sequenceexaminedbyXRD sequence in the sedimented aggregate has been rearranged. examined by XRDis determined by the Theproportions oftheОнлайн-запрос

  • REGULARLY INTERSTRATIFIED CHLORITE/VERMICULITE IN SOILS

    REGULARLY INTERSTRATIFIED CHLORITE/VERMICULITE IN SOILS OVER META-IGNEOUS MAFIC ROCKS IN MARYLAND 1 Key Words--Chlorite, Interstratification, Mixed layer, Soil, Vermiculite, Weathering. INTRODUCTION The random interstratification of chlorite and vermiculite layers in 2:1 phyllosilicates in geologic and pedologic materials is quite common. Regular interstratification isОнлайн-запрос

  • USGS OFR01-041: Mixed-layer clays U.S. Geological

    U. S. Geological Survey Open-File Report 01-041 A Laboratory Manual for X-Ray Powder Diffraction Mixed-Layer Clays Mixed-layer clay minerals are materials in which different kinds of clay layers alternate with each other. The mixing or interstratification in vertical stacking can be regular (ordered), segregated regular, or random (MacEwan and Ruiz-Amil, 1975; Reynolds, 1980; Wilson, 1987