Browse > Article

Study on expandability and X-ray coherent scattering domain size of bentonite from Gampo and Yonil area, Korea  

강일모 (연세대학교 지구시스템과학과)
박석찬 (연세대학교 지구시스템과학과)
문희수 (연세대학교 지구시스템과학과)
유장한 (한국지질자원연구원)
Publication Information
Economic and Environmental Geology / v.36, no.1, 2003 , pp. 1-8 More about this Journal
Abstract
This study was performed to measure expandabilities and coherent scattering domain sizes (CSDs) of bentonite samples from Campo and Yonil area, Korea, using X-ray powder diffraction (XRD), and to compare their experimental data with those of international standard bentonite samples (SAz-1, STx-1, and SWy-2). Most of Gampo and Yonil bentonite samples comprised randomly interstratified illite-smectite (R0 I-S), and their expandabilities ranged over 77-100%S$_{XRD}$ from the saddle/001 method. The interstratification deformed 001 peaks of EG-solvated samples (Mering's first principle), which prohibited us from adopting these peaks to measure CSDs using BWA (Bertaut-Warren-Averbach) method. CSDs of the bentonite samples with R0 I-S could be measured through dehydration at 30$0^{\circ}C$ after K-saturation, where the deformation originated from the interstratification could be removed effectively. Campo and Yonil bentonite samples showed that their mean CSDs ranged over 3.8-5.4 interlayers, and that their CSDs distributions were similar to those of Gonzales (STx-1) and Wyoming (SWy-2) bentonite samples.
Keywords
X-ray powder diffraction; bentonite; expandability; coherent scattering domain size; illite-smectite;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 A simple technique for identification of one-dimensional powder X-ray diffraction patterns for mixed-layer illite-smectite and other interstratified minerals /
[ Drits, V.A.;Varaxina, T.V.;Sakharov, B.A.;Plancon, A. ] / Clays Clay Miner.   DOI   ScienceOn
2 Interstratified clay minerals /
[ Reynolds, R.C.;Brindley, G.W.(ed.);Brown, G.(ed.) ] / Crystal structures of clay minerals and their X-ray identification. Monograph No. 5
3 Effect of the shape of fundamental particles on XRD characteristics of illitic minerals /
[ Sordon, J.;Elsass, F. ] / Eur. J. Mineral.   DOI
4 Convenient technique for estimating smectite layer percentage in randomly interstratified illite/smectite minerals /
[ Inoue, A.;Bouchet, A.;Velde, B.;Meunier, A. ] / Clays Clay Miner.   DOI   ScienceOn
5 Mean thickness and thickness distribution of smectite crystallites /
[ Mystkowski, K.;Srodon, J.;Elsass, F. ] / Clay Miner.   DOI   ScienceOn
6 An empirical Scherrer equation for weakly swelling mixed-layer minerals, especially illite-smectite /
[ Jaboyedoff, M.;Kubler, B.;Thelin, P.H. ] / Clay Miner.   DOI
7 MudMaster: A program for calculating crystallite size distributions and strain from the shapes of X-ray diffraction peaks /
[ Eberl, D.D.;Drits, V;Srodon, J.;Nuesch, R. ] / USGS Open File Report 96-171
8 X-ray powder dissraction identification of illitic materials /
[ Srodon, J. ] / Clays Clay Miner.   DOI   ScienceOn
9 /
[ Moore, D.M.;Reynolds, R.C. ] / X-ray Diffraction and the Idenfication and Analysis of Clay Minerals(2nd ed.)
10 Comparison of structural models of mixed-layer illite/smectite and reaction meachanisms of smectite illitization /
[ Altaner, S.P.;Ylagan, R.F. ] / Clays Clay Miner.   DOI   ScienceOn
11 Mechanism of burial metamorphism of argillaceous sediment: 1. Mineralogical and chemical evidence /
[ Hower, J.;Eslinger, E.V.;Hower, M.E.;Perry, E.A. ] / Geol. Soc. Am. Bull.   DOI
12 XRD measurement of mean thickness, thickness distribution and strain for illite and illite-smectite crystallites by the Bertaut-Warren-Averbach technique /
[ Drits, V.A.;Eberl, D.D.;Srodon, J. ] / Clays Clay Miner.   DOI   ScienceOn
13 일라이트-스멕타이트 혼합층광물의 팽창성과 MacEwan 결정자 및 기본입자두께에 관한 연구 /
[ 강일모;문희수;김재곤;송윤구 ] / 한국광물학회지   과학기술학회마을
14 XRD measurement of mean crystallite thickness of illite and illite/smectite: Reappraisal of the Kubler index and the Scherrer equation /
[ Drits, V.A.;Srodon, J.;Eberl, D.D. ] / Clays Clay Miner.   DOI   ScienceOn
15 Chemistry of illite-smectite inferred from TEM measurements of fundamental particles /
[ Sordon, J.;Elsass, F.;McHardy, W.J.;Morgan, D.J. ] / Clay Miner.   DOI
16 /
[ Jackson, M.L. ] / Soil chemical analysis-advanced course(2nd ed. 11th printing)
17 Quantification curves for mica/smectite interstratifications by X-ray powder diffraction /
[ Tomita, K.;Takahashi, H;Watanabe, T. ] / Clays Clay Miner.   DOI   ScienceOn
18 An experimentally derived kinetic model for smectite-to-illite conversion and its use as a geothermometer /
[ Huang, W.L.;Longo, J.M.;Pevear,D.R. ] / Clays Clay Miner.   DOI   ScienceOn
19 Role of water in the smectite-to-illite reaction /
[ Whitney, G. ] / Clays Clay Miner.   DOI
20 /
[ Reynolds, R.C.;Reynolds, R.C. ] / NEWMOD for Windows:A program for the calculation of one-dimensional diffraction patterns of mixed-layered clays