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Low Temperature Experimental Investigation of the Effect of High pH Koh Solutions on the Opalinus Shale, Switzerland

Published online by Cambridge University Press:  28 February 2024

J. A. Chermak
J. A. Chermak*
Affiliation:
Mineralogisch-Petrographisches Inst., Universtät Bern, Baltzerstrasse 1, CH - 3012, Bern, Switzerland
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Abstract

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Batch reactor experiments were performed at 150°C, 175°C, and 200°C to determine the effect of high pH KOH solutions on the mineralogy of the Opalinus shale. In these experiments, the change in solution quench pH at 25°C, solution composition, and mineralogy were monitored as a function of time for up to ≈ 50 days. Runs were performed in 50 ml titanium hydrothermal reactor vessels. Each reactor was charged with 0.5–5.0 grams of the 80–200 mesh size fraction of Opalinus shale, and 25 ml of solution (0.08 and 0.008 m KOH). Under these high pH conditions, the general sequence of reaction products observed is the formation of phillipsite, followed by K-feldspar ± K-rectorite. Phillipsite is a metastable intermediate that eventually transforms to K-feldspar. This sequence of mineral reaction products is very different from that found in the NaOH system.

Keywords

Experimental investigationHigh pHK-rectoriteK-feldsparOpalinus shalePhillipsite
Type
Research Article
Information
Clays and Clay Minerals , Volume 41 , Issue 3 , June 1993 , pp. 365 - 372
Copyright
Copyright © 1993, The Clay Minerals Society

References

Barrer, R. M., 1982 Hydrothermal Chemistry of Zeolites New York Academic Press.Google Scholar
Barth-Wirsching, U. and Höller, H., 1989 Experimental studies on zeolite formation conditions European Journal of Mineralogy 1 489 – 506 10.1127/ejm/1/4/0489.CrossRefGoogle Scholar
Brindley, G. W., Brindley, G. W. and Brown, G., 1980 Quantitative X-ray mineral analysis of clays Crystal Structures of Clay Minerals and Their X-ray Identification London Mineralogical Society 411 – 438.CrossRefGoogle Scholar
Chermak, J. A., 1992 Low temperature experimental investigation of the effect of high pH NaOH solutions on the Opalinus shale, Switzerland Clays & Clay Minerals 40 650 – 658 10.1346/CCMN.1992.0400604.CrossRefGoogle Scholar
Chermak, J. A. and Rimstidt, J. D., 1990 The hydrothermal transformation rate of kaolinite to muscovite/illite Geochim. et Cosmochim. Acta 54 2979 – 2990 10.1016/0016-7037(90)90115-2.CrossRefGoogle Scholar
Donahoe, R. J., Liou, J. G. and Guldman, S., 1984 Synthesis and characterization of zeolites in the system Na2O-K2O-Al2O3-SiO2-H2O Clays & Clay Minerals 32 433 – 443 10.1346/CCMN.1984.0320601.CrossRefGoogle Scholar
Donahoe, R. J. and Liou, J. G., 1985 An experimental study on the process of zeolite formation Geochim. et Cosmochim. Acta 49 2349 – 2360 10.1016/0016-7037(85)90235-2.CrossRefGoogle Scholar
Eberl, D., 1978 Reaction series for dioctahedral smectites Clays & Clay Minerals 26 327 – 340 10.1346/CCMN.1978.0260503.CrossRefGoogle Scholar
Eberl, D. and Hower, J., 1977 The hydrothermal transformation of sodium and potassium smectite into mixed layer clay Clays & Clay Minerals 25 215 – 227 10.1346/CCMN.1977.0250308.CrossRefGoogle Scholar
Gieskes, J. and Peretsman, G., 1986 Water Chemistry procedures aboard Joides Resolution—Some comments Ocean Drilling Program Technical Note No. 5 .CrossRefGoogle Scholar
Govett, G. J. S., 1961 Critical factors in the colorimetric determination of silica Analytica Chimica Acta 25 69 – 80 10.1016/S0003-2670(01)81519-1.CrossRefGoogle Scholar
Hawkins, D. B., Sheppard, R. A., Gude, A. J., 3rd, Sand, L. B. and Mumpton, F. A., 1978 Hydrothermal synthesis of clinoptilolite and comments on the assemblage phillipsite-clinoptilolite-mordenite Natural Zeolites 337 – 344.Google Scholar
Hawkins, D. B., 1981 Kinetics of glass dissolution and zeolite formation under hydrothermal conditions Clays & Clay Minerals 29 331 – 340 10.1346/CCMN.1981.0290503.CrossRefGoogle Scholar
Hay, R. L., 1966 Zeolites and zeolite reactions in sedimentary rocks GSA Special Paper .CrossRefGoogle Scholar
Hay, R. L., Sand, L. B. and Mumpton, F. A., 1978 Geologic occurrence of zeolites Natural Zeolites New York Pergamon Press 135 – 143.Google Scholar
Hay, R. L., 1986 Geologic occurrence of zeolites and some associated minerals Pure and Applied Chemistry 58 1339 – 1342 10.1351/pac198658101339.CrossRefGoogle Scholar
Hemley, J. J., 1959 Some mineralogical equilibria in the system K2O-Al2O3-SiO2-H2O Amer. J. Sci. 257 241 – 270 10.2475/ajs.257.4.241.CrossRefGoogle Scholar
Hess, P. C., 1966 Phase equilibria of some minerals in the K2O-Al2O3-SiO2-H2O system at 25°C and 1 atmosphere Amer. J. Sci. 264 289 – 309 10.2475/ajs.264.4.289.CrossRefGoogle Scholar
Hower, J., Eslinger, E. V., Hower, M. and Perry, E. A., 1976 Mechanism of burial metamorphism of argillaceous sediments: I. Mineralogical and chemical evidence Geological Society of America Bulletin 87 725 – 737 10.1130/0016-7606(1976)87<725:MOBMOA>2.0.CO;2.2.0.CO;2>CrossRefGoogle Scholar
Kodama, H., 1966 The nature of the component layers of rectorite Amer. Mineral. 51 1035 – 1055.Google Scholar
Matsuda, T. and Henmi, K., 1983 Syntheses and properties of regularly interstratified 25 Å minerals Clay Science 6 51 – 66.Google Scholar
Merck AG, E., 1966 Organische reagenzien für die anorganische analyse Weinheim, Germany Verlag Chemie GMBH.Google Scholar
Moore, D. M. and Reynolds, R. C. Jr., 1989 X-ray Diffraction and the Identification and Analysis of Clay Minerals New York Oxford University Press.Google Scholar
Pawloski, G. A., 1985 Quantitative determination of mineral content of geologic samples by X-ray diffraction Amer. Mineral. 70 663 – 667.Google Scholar
Pevear, D. R., Williams, V. E. and Mustoe, G. E., 1980 Kaolinite, smectite, and K-rectorite in bentonites: Relation to coal rank at Tulameen, British Columbia Clays & Clay Minerals 28 241 – 254 10.1346/CCMN.1980.0280401.CrossRefGoogle Scholar
Snyder, R. L. and Bish, D. L., 1989 Quantitative analysis Modern Powder Diffraction, Reviews in Mineralogy 20 101 – 142 10.1515/9781501509018-008.CrossRefGoogle Scholar
Varian, , 1979 Analytical methods for flame spectroscopy Varian Techtron Pty. Ltd. Australia Springvale.Google Scholar
Velde, B., (1985) Clay minerals, A physico-chemical explanation of their occurrence: Developments in Sedimentology 40, Elsevier, New York.Google Scholar
Whitney, G. and Northrop, H. R., 1988 Experimental investigation of the smectite to illite reaction: Dual reaction mechanisms and oxygen-isotope systematics Amer. Mineral. 73 77 – 90.Google Scholar